ssh,ssm整合redis存储验证码

SSM整合redis存储验证码

思路

登录界面向后台请求验证码,后台就先调用随机函数生成验证码,并且根据验证码生成一张图片,以 base64 字符串的形式传到前台,这时我们还要生成verificationJwt令牌做为请求验证码客户端的区分。我们先将验证码信息存入redis。key是 verificationJwt令牌的值,value就是验证码了。并且将令牌放入到响应头。传给客户端。当客户端提交的时候将保持的verificationJwt令牌放入请求头带过来。后端根据前端传过来的 jwt令牌去redis中获取数据,将验证码拿到后和现有的验证码进行比较。看看是否相等

在这里插入图片描述

思路图解

获取验证码部分:

图解1.这里全文都使用着两个令牌**,一张是jwt令牌(用于判断是否登录后所看到的资源),一张是verificationJwt(验证码)**
在这里插入图片描述

图解2.登录界面向后台请求验证码,后台就先调用随机函数生成验证码,并且根据验证码生成一张图片,以 base64 字符串的形式传到前台,这时我们还要生成verificationJwt令牌做为请求验证码客户端的区分。我们先将验证码信息存入redis。key是 verificationJwt令牌的值,value就是验证码了。

并将令牌放入到响应头。传给客户端
图解

(Debug调试)
在这里插入图片描述
redis存储成功
在这里插入图片描述
在这里插入图片描述
得到后台相应返回的头verificationjwt

在这里插入图片描述
保存verificationJwt到vuex

登录部分

当客户端提交的时候将保持的verificationJwt令牌放入请求头带过来。后端根据前端传过来的 jwt令牌去redis中获取数据,将验证码拿到后和现有的验证码进行比较。看看是否相等

细节

注意:
这里请求头同时发送了两个jwt,还有验证码的jwt,访问报404forbidden,
原因:
jwt是用来登录
verificationJwt
加粗样式

详细代码

前端

State.js(定义vuex变量)



export default {
	resturantName: '飞歌餐馆',
	jwt:'',
	options: [],//存放tab页的容器
    activeIndex: '',//激活的tab页路由路径
	showName:'show',//tab页的标题
	role:"",//用来区分是否是因为左侧菜单被点击造成的路由路径发生改变,是:pass;不是:nopass
	verificationJwt:null, //这是用来保存用户等登录验证码jwt身份识别的
}

Mutations.js(set方法)

setVerificationJwt: (state, payload) => {
		state.verificationJwt = payload.verificationJwt;
	}

Getters.js(get方法)

getVerificationJwt:(state) =>{
		return state.verificationJwt;
	}

action.js

/**
 * 对后台请求的地址的封装,URL格式如下:
 * 模块名_实体名_操作
 */
export default {
	
	//ssh
// 	'SERVER': 'http://localhost:8080/T216_SSH', //服务器
// 	'SYSTEM_USER_DOLOGIN': '/vue/userAction_login.action', //用户登陆
// 	'VERIFICATION': '/vue/userAction_userCode.action', //验证码验证


	// 	ssm
		'SERVER': 'http://localhost:8080/ssm', //服务器
		'SYSTEM_USER_DOLOGIN': '/vue/user/login', //用户登陆
		'VERIFICATION': '/vue/user/verificationCode', //验证码验证


	'SYSTEM_USER_DOREG': '/vue/userAction_reg.action', //用户注册
	'SYSTEM_MENU_TREE': '/vue/treeNodeAction.action', //左侧树形菜单加载
	'SYSTEM_ARTICLE_LIST': '/vue/articleAction_list.action', //文章列表
	'SYSTEM_ARTICLE_ADD': '/vue/articleAction_add.action', //文章新增
	'SYSTEM_ARTICLE_EDIT': '/vue/articleAction_edit.action', //文章修改
	'SYSTEM_ARTICLE_DEL': '/vue/articleAction_del.action', //文章删除
	'SYSTEM_USER_GETASYNCDATA': '/vue/userAction_getAsyncData.action', //vuex中的异步加载数据
	'getFullPath': k => { //获得请求的完整地址,用于mockjs测试时使用
		return this.SERVER + this[k];
	}
}

http.js



/**
 * vue项目对axios的全局配置
 */
import axios from 'axios'
import qs from 'qs'

//引入action模块,并添加至axios的类属性urls上
import action from '@/api/action'
axios.urls = action

// axios默认配置
axios.defaults.timeout = 10000; // 超时时间
// axios.defaults.baseURL = 'http://localhost:8080/j2ee15'; // 默认地址
axios.defaults.baseURL = action.SERVER;

//整理数据
// 只适用于 POST,PUT,PATCH,transformRequest` 允许在向服务器发送前,修改请求数据
axios.defaults.transformRequest = function(data) {
	data = qs.stringify(data);
	return data;
};


// 请求拦截器
axios.interceptors.request.use(function(config) {
	//设置验证码jwt令牌
	let verificationJwt = window.vm.$store.getters.getVerificationJwt;
	if (verificationJwt) {
		config.headers['verificationJwt'] = verificationJwt;
	}


	var jwt = window.vm.$store.getters.getJwt;
	config.headers['jwt'] = jwt;
	return config;
}, function(error) {
	return Promise.reject(error);
});


// 响应拦截器

axios.interceptors.response.use(function(response) {
	// debugger;
	//保存验证码jwt令牌
	let verificationjwt = response.headers['verificationjwt'];
	if (verificationjwt) {
		window.vm.$store.commit('setVerificationJwt', {
			verificationJwt: verificationjwt
		});
	}
	
	var jwt = response.headers['jwt'];
	if (jwt) {
		window.vm.$store.commit('setJwt', {
			jwt: jwt
		});
	}
	return response;
}, function(error) {
	return Promise.reject(error);
});

// // 路由请求拦截
// // http request 拦截器
// axios.interceptors.request.use(
// 	config => {
// 		//config.data = JSON.stringify(config.data);  
// 		//config.headers['Content-Type'] = 'application/json;charset=UTF-8';
// 		//config.headers['Token'] = 'abcxyz';
// 		//判断是否存在ticket,如果存在的话,则每个http header都加上ticket
// 		// if (cookie.get("token")) {
// 		// 	//用户每次操作,都将cookie设置成2小时
// 		// 	cookie.set("token", cookie.get("token"), 1 / 12)
// 		// 	cookie.set("name", cookie.get("name"), 1 / 12)
// 		// 	config.headers.token = cookie.get("token");
// 		// 	config.headers.name = cookie.get("name");
// 		// }
// 		return config;
// 	},
// 	error => {
// 		return Promise.reject(error.response);
// 	});

// // 路由响应拦截
// // http response 拦截器
// axios.interceptors.response.use(
// 	response => {
// 		if (response.data.resultCode == "404") {
// 			console.log("response.data.resultCode是404")
// 			// 返回 错误代码-1 清除ticket信息并跳转到登录页面
// 			//      cookie.del("ticket")
// 			//      window.location.href='http://login.com'
// 			return
// 		} else {
// 			return response;
// 		}
// 	},
// 	error => {
// 		return Promise.reject(error.response) // 返回接口返回的错误信息
// 	});



export default axios;

后端

在这里插入图片描述

在这里插入图片描述
redis的pom.xml

       <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>${redis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>${redis.spring.version}</version>
        </dependency>

完整pom.xml

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.wxm</groupId>
    <artifactId>ssm</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>ssm Maven Webapp</name>
    <!-- FIXME change it to the project's website -->
    <url>http://www.example.com</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
        <maven.compiler.plugin.version>3.7.0</maven.compiler.plugin.version>
        <!--添加jar包依赖-->

        <!--文件上传-->
        <commons-fileupload.version>1.3.3</commons-fileupload.version>

        <!--1.spring 5.0.2.RELEASE相关-->
        <spring.version>5.0.2.RELEASE</spring.version>
        <!--2.mybatis相关-->
        <mybatis.version>3.4.5</mybatis.version>
        <!--mysql-->
        <mysql.version>5.1.44</mysql.version>
        <!--pagehelper分页jar依赖-->
        <pagehelper.version>5.1.2</pagehelper.version>
        <!--mybatis与spring集成jar依赖-->
        <mybatis.spring.version>1.3.1</mybatis.spring.version>
        <!--3.dbcp2连接池相关 druid-->
        <commons.dbcp2.version>2.1.1</commons.dbcp2.version>
        <commons.pool2.version>2.4.3</commons.pool2.version>
        <!--4.log日志相关-->
        <log4j2.version>2.9.1</log4j2.version>
        <log4j2.disruptor.version>3.2.0</log4j2.disruptor.version>
        <slf4j.version>1.7.13</slf4j.version>

        <!-- redis与spring的整合依赖 -->
        <redis.version>2.9.0</redis.version>
        <redis.spring.version>1.7.1.RELEASE</redis.spring.version>

        <!-- jackson -->
        <jackson.version>2.9.3</jackson.version>

        <!--5.其他-->
        <junit.version>4.12</junit.version>
        <servlet.version>4.0.0</servlet.version>
        <lombok.version>1.18.2</lombok.version>

        <tomcat-jsp-api.version>8.0.47</tomcat-jsp-api.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-core</artifactId>
            <version>1.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-web</artifactId>
            <version>1.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.3.2</version>
        </dependency>

        <!--引入JWT依赖,由于是基于Java,所以需要的是java-jwt -->
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>
        <dependency>
            <groupId>com.auth0</groupId>
            <artifactId>java-jwt</artifactId>
            <version>3.4.0</version>
        </dependency>
        <!--文件上传-->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.3</version>
        </dependency>
        <!--1.spring相关-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--这是引入springframework 这个项目中的web模块-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>


        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--2.mybatis相关-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <!--mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>
        <!--pagehelper分页插件jar包依赖-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>${pagehelper.version}</version>
        </dependency>
        <!--mybatis与spring集成jar包依赖-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis.spring.version}</version>
        </dependency>
        <!--3.dbcp2连接池相关-->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-dbcp2</artifactId>
            <version>${commons.dbcp2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
            <version>${commons.pool2.version}</version>
        </dependency>


        <!--4.log日志相关依赖-->
        <!--核心log4j2jar包-->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <!--web工程需要包含log4j-web,非web工程不需要-->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-web</artifactId>
            <version>${log4j2.version}</version>
        </dependency>

        <!--5.其他-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>${junit.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>${servlet.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
            <scope>provided</scope>
        </dependency>


        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--mybatis与ehcache整合-->
        <dependency>
            <groupId>org.mybatis.caches</groupId>
            <artifactId>mybatis-ehcache</artifactId>
            <version>1.1.0</version>
        </dependency>

        <!--ehcache依赖-->
        <dependency>
            <groupId>net.sf.ehcache</groupId>
            <artifactId>ehcache</artifactId>
            <version>2.10.0</version>
        </dependency>


        <!-- log4j2日志相关依赖 -->
        <!-- log配置:Log4j2 + Slf4j -->
        <!-- slf4j核心包-->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>${slf4j.version}</version>
            <scope>runtime</scope>
        </dependency>

        <!--核心log4j2jar包-->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>${log4j2.version}</version>
        </dependency>
        <!--用于与slf4j保持桥接-->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
            <version>${log4j2.version}</version>
        </dependency>

        <!--web工程需要包含log4j-web,非web工程不需要-->
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-web</artifactId>
            <version>${log4j2.version}</version>
            <scope>runtime</scope>
        </dependency>

        <!--需要使用log4j2的AsyncLogger需要包含disruptor-->
        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
            <version>${log4j2.disruptor.version}</version>
        </dependency>



        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>${redis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>${redis.spring.version}</version>
        </dependency>

        <!-- jackson -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jackson.version}</version>
        </dependency>


        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-jsp-api</artifactId>
            <version>${tomcat-jsp-api.version}</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>ssm</finalName>
        <resources>
            <!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题-->
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <!--解决mybatis-generator-maven-plugin运行时没有将jdbc.properites文件放入target文件夹的问题-->
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>*.properties</include>
                    <include>*.xml</include>
                </includes>
            </resource>
        </resources>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>${maven.compiler.plugin.version}</version>
                    <configuration>
                        <source>${maven.compiler.source}</source>
                        <target>${maven.compiler.target}</target>
                        <encoding>${project.build.sourceEncoding}</encoding>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-maven-plugin</artifactId>
                    <version>1.3.2</version>
                    <dependencies>
                        <!--使用Mybatis-generator插件不能使用太高版本的mysql驱动 -->
                        <dependency>
                            <groupId>mysql</groupId>
                            <artifactId>mysql-connector-java</artifactId>
                            <version>${mysql.version}</version>
                        </dependency>
                    </dependencies>
                    <configuration>
                        <overwrite>true</overwrite>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>


redis.properties

redis.hostName=192.168.192.131
redis.port=6379
redis.password=123456
redis.timeout=10000
redis.maxIdle=300
redis.maxTotal=1000
redis.maxWaitMillis=1000
redis.minEvictableIdleTimeMillis=300000
redis.numTestsPerEvictionRun=1024
redis.timeBetweenEvictionRunsMillis=30000
redis.testOnBorrow=true
redis.testWhileIdle=true

完整web.xml

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <display-name>Archetype Created Web Application</display-name>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <!-- shiro过滤器定义 -->
    <filter>
        <filter-name>shiroFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
        <init-param>
            <!-- 该值缺省为false,表示生命周期由SpringApplicationContext管理,设置为true则表示由ServletContainer管理 -->
            <param-name>targetFilterLifecycle</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>shiroFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- 读取Spring上下文的监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- 解决cors跨域问题过滤器 -->
    <filter>
        <filter-name>corsFilter</filter-name>
        <filter-class>com.wxm.util.CorsFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>corsFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- 解决jwt问题的过滤器 -->
    <filter>
        <filter-name>jwtFilter</filter-name>
        <filter-class>com.wxm.util.JwtFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>jwtFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!--解决乱码  -->
    <filter>
        <filter-name>encodingFiter</filter-name>
        <filter-class>com.wxm.util.EncodingFiter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>encodingFiter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- Spring MVC servlet -->
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--此参数可以不配置,默认值为:/WEB-INF/springmvc-servlet.xml-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <!--web.xml 3.0的新特性,是否支持异步-->
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

JwtFilter

package com.wxm.util;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import io.jsonwebtoken.Claims;
/**
 * JWT验证过滤器,配置顺序 :CorsFilte-->JwtFilter-->control层
 * @author wxm
 * @site www.wxm.com
 * @company xxx公司
 * @create 2019-11-25 16:31
 */
public class JwtFilter implements Filter {

    // 排除的URL,一般为登陆的URL(请改成自己登陆的URL)
    private static String EXCLUDE = "^/vue/userAction_login\\.action?.*$";

    private static Pattern PATTERN = Pattern.compile(EXCLUDE);

    private boolean OFF =false ;// true关闭jwt令牌验证功能

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    @Override
    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        String path = req.getServletPath();
        if (OFF || isExcludeUrl(path)) {// 登陆直接放行
            chain.doFilter(request, response);
            return;
        }

        // 从客户端请求头中获得令牌并验证
        String jwt = req.getHeader(JwtUtils.JWT_HEADER_KEY);
        Claims claims = this.validateJwtToken(jwt);
        if (null == claims) {
            // resp.setCharacterEncoding("UTF-8");
            resp.sendError(403, "JWT令牌已过期或已失效");
            return;
        } else {
            String newJwt = JwtUtils.copyJwt(jwt, JwtUtils.JWT_WEB_TTL);
            resp.setHeader(JwtUtils.JWT_HEADER_KEY, newJwt);
            chain.doFilter(request, response);
        }
    }

    /**
     * 验证jwt令牌,验证通过返回声明(包括公有和私有),返回null则表示验证失败
     */
    private Claims validateJwtToken(String jwt) {
        Claims claims = null;
        try {
            if (null != jwt) {
                claims = JwtUtils.parseJwt(jwt);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return claims;
    }

    /**
     * 是否为排除的URL
     *
     * @param path
     * @return
     */
    private boolean isExcludeUrl(String path) {
        Matcher matcher = PATTERN.matcher(path);
        return matcher.matches();
    }

     public static void main(String[] args) {
     String path = "/vue/user/login?username=zs&password=123";
     Matcher matcher = PATTERN.matcher(path);
     boolean b = matcher.matches();
     System.out.println(b);
     }

}

JSONResult

package com.wxm.util;

/**
 * @author wxm
 * @site www.wxm.com
 * @company xxx公司
 * @create 2019-11-25 17:11
 */
public class JSONResult {

    // 响应业务状态
    private Integer status;

    // 响应消息
    private String msg;

    // 响应中的数据
    private Object data;

    private String ok; // 不使用

    public static JSONResult build(Integer status, String msg, Object data) {
        return new JSONResult(status, msg, data);
    }

    public static JSONResult ok(Object data) {
        return new JSONResult(data);
    }

    public static JSONResult ok() {
        return new JSONResult(null);
    }

    public static JSONResult errorMsg(String msg) {
        return new JSONResult(500, msg, null);
    }

    public static JSONResult errorMap(Object data) {
        return new JSONResult(501, "error", data);
    }

    public static JSONResult errorTokenMsg(String msg) {
        return new JSONResult(502, msg, null);
    }

    public static JSONResult errorException(String msg) {
        return new JSONResult(555, msg, null);
    }

    public JSONResult() {

    }

    public JSONResult(Integer status, String msg, Object data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    public JSONResult(Object data) {
        this.status = 200;
        this.msg = "OK";
        this.data = data;
    }

    public Boolean isOK() {
        return this.status == 200;
    }

    public Integer getStatus() {
        return status;
    }

    public void setStatus(Integer status) {
        this.status = status;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    public String getOk() {
        return ok;
    }

    public void setOk(String ok) {
        this.ok = ok;
    }

}

ImageUtil

package com.wxm.util;


import sun.misc.BASE64Encoder;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Random;
import sun.misc.BASE64Encoder;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Random;

public class ImageUtil {

    /**
     * 根据指定的随机数 生成验证码图片 转 base64
     * @param word 要生存的验证码随机字符串
     * @param width 图片宽度
     * @param height 图片高度
     * @return base64 格式生成的验证码图片
     * @throws IOException
     */
    public static String createImageWithVerifyCode(String word, int width, int height) throws IOException {
        String png_base64="";
        //绘制内存中的图片
        BufferedImage bufferedImage = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
        //得到画图对象
        Graphics graphics = bufferedImage.getGraphics();
        //绘制图片前指定一个颜色
        graphics.setColor(getRandColor(160,200));
        graphics.fillRect(0,0,width,height);
        //绘制边框
        graphics.setColor(Color.white);
        graphics.drawRect(0, 0, width - 1, height - 1);
        // 步骤四 四个随机数字
        Graphics2D graphics2d = (Graphics2D) graphics;
        graphics2d.setFont(new Font("宋体", Font.BOLD, 18));
        Random random = new Random();
        // 定义x坐标
        int x = 10;
        for (int i = 0; i < word.length(); i++) {
            // 随机颜色
            graphics2d.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
            // 旋转 -30 --- 30度
            int jiaodu = random.nextInt(60) - 30;
            // 换算弧度
            double theta = jiaodu * Math.PI / 180;
            // 获得字母数字
            char c = word.charAt(i);
            //将c 输出到图片
            graphics2d.rotate(theta, x, 20);
            graphics2d.drawString(String.valueOf(c), x, 20);
            graphics2d.rotate(-theta, x, 20);
            x += 30;
        }
        // 绘制干扰线
        graphics.setColor(getRandColor(160, 200));
        int x1;
        int x2;
        int y1;
        int y2;
        for (int i = 0; i < 30; i++) {
            x1 = random.nextInt(width);
            x2 = random.nextInt(12);
            y1 = random.nextInt(height);
            y2 = random.nextInt(12);
            graphics.drawLine(x1, y1, x1 + x2, x2 + y2);
        }
        graphics.dispose();// 释放资源
        ByteArrayOutputStream baos = new ByteArrayOutputStream();//io流
        ImageIO.write(bufferedImage, "png", baos);//写入流中
        byte[] bytes = baos.toByteArray();//转换成字节
        BASE64Encoder encoder = new BASE64Encoder();
        png_base64 = encoder.encodeBuffer(bytes).trim();
        png_base64 = png_base64.replaceAll("\n", "").replaceAll("\r", "");//删除 \r\n
        return png_base64;
    }



    /**设置随机颜色*/
    private static Color getRandColor(int fc, int bc) {
        // 取其随机颜色
        Random random = new Random();
        if (fc > 255) {
            fc = 255;
        }
        if (bc > 255) {
            bc = 255;
        }
        int r = fc + random.nextInt(bc - fc);
        int g = fc + random.nextInt(bc - fc);
        int b = fc + random.nextInt(bc - fc);
        return new Color(r, g, b);
    }

}

CorsFilter,JwtUtils前面ssh都有
==StringUtils ==

package com.wxm.util;

/**
 * @author wxm
 * @site www.wxm.com
 * @company xxx公司
 * @create 2019-11-22 11:09
 */
public class StringUtils {

    // 私有的构造方法,保护此类不能在外部实例化
    private StringUtils() {
    }

    /**
     * 如果字符串等于null或去空格后等于"",则返回true,否则返回false
     *
     * @param s
     * @return
     */
    public static boolean isBlank(String s) {
        boolean b = false;
        if (null == s || s.trim().equals("")) {
            b = true;
        }
        return b;
    }

    /**
     * 如果字符串不等于null或去空格后不等于"",则返回true,否则返回false
     *
     * @param s
     * @return
     */
    public static boolean isNotBlank(String s) {
        return !isBlank(s);
    }

}


UserMapper.java

    User login(User user);

UserMapper.xml

  <select id="login" resultType="com.wxm.model.User" parameterType="com.wxm.model.User">
    select
    <include refid="Base_Column_List" />
    from t_vue_user
    where uname = #{uname} and pwd = #{pwd}
  </select>

UserService,Impl省略

User login(User user);

==UserController ==

package com.wxm.controller;

import com.auth0.jwt.JWT;
import com.auth0.jwt.interfaces.Claim;
import com.wxm.model.User;
import com.wxm.service.UserService;
import com.wxm.util.ImageUtil;
import com.wxm.util.JSONResult;
import com.wxm.util.JwtUtils;
import com.wxm.util.VerifyCodeUtil;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import sun.misc.Request;
import org.springframework.data.redis.core.RedisTemplate;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author wxm
 * @site www.wxm.com
 * @company xxx公司
 * @create 2019-11-25 18:55
 */

@Controller
@RequestMapping("/vue/user")
public class UserController {
    private static final String VERIFICATION_CODE = "verificationCode_";

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    @RequestMapping("/login")
    @ResponseBody
    public JSONResult login(User u, HttpServletRequest request, HttpServletResponse response){
        //获取用户输入的验证码
        String userVerificationCode = request.getParameter("verificationCode");
        //获取验证码jwt令牌
        String userJwt = request.getHeader(JwtUtils.JWT_VERIFICATION_KEY);
        //获取到保存在redis中的验证码
        Object redisVerificationCode =  redisTemplate.opsForValue().get(VERIFICATION_CODE + userJwt) ;

//        这里存在两种情况:1、令牌超时   2、验证码超时
        if(StringUtils.isEmpty(redisVerificationCode)){
            return JSONResult.errorMsg("你的验证码已超时");
        }

        if(!redisVerificationCode.toString().equalsIgnoreCase(userVerificationCode)){
            return JSONResult.errorMsg("验证码错误");
        }

        User user = userService.login(u);
        //判断是否登录成功
        if(user != null){
            Map<String,Object> map=new HashMap<String, Object>();
            map.put("User", user);
            //这是颁发用户登录成功的jwt令牌
            String jwt= JwtUtils.createJwt(map, JwtUtils.JWT_WEB_TTL);
            response.setHeader(JwtUtils.JWT_HEADER_KEY, jwt);
            return JSONResult.ok(user);
        }else {
            return JSONResult.errorMsg("密码或账户错误");
        }

    }




    /**生成图片验证码*/
    @RequestMapping("/verificationCode")
    @ResponseBody
    public String verificationCode(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        //生成验证码随机数
        String word = VerifyCodeUtil.produceNumAndChar(4);
//        获取用户的jwt令牌
        String userVerificationJwt = req.getHeader(JwtUtils.JWT_VERIFICATION_KEY);
        //验证码令牌
        Claims claims = JwtUtils.validateJwtToken(userVerificationJwt);
        if(claims == null){
            //如果用户令牌过期那么对应存放在redis中的数据也要清空
            if(!StringUtils.isEmpty(userVerificationJwt)){
                redisTemplate.expire(VERIFICATION_CODE + userVerificationJwt, 1, TimeUnit.DAYS);
            }
            userVerificationJwt =  JwtUtils.createJwt(new HashMap<String, Object>() ,JwtUtils.JWT_WEB_TTL);
            //将jwt令牌放入 response head中
            resp.setHeader(JwtUtils.JWT_VERIFICATION_KEY, userVerificationJwt);
        }
        //刷新缓存,更新验证码
        redisTemplate.opsForValue().set(VERIFICATION_CODE + userVerificationJwt , word,60, TimeUnit.SECONDS);
        //生成图片
        String code = "data:image/png;base64," + ImageUtil.createImageWithVerifyCode(word, 116,40);

        return code;
    }
}

验证码效果:

在这里插入图片描述
登录成功:
在这里插入图片描述

SSH

思路:

1. 从后端随机生成验证码,存储到redis里面,同时发送到前台(在进入登录界面的时候)

2. 前台把验证码展示出来,在提交表单时,把用户输入的验证码作为参数传输。

3. 后端接收到前台传过来的验证码,同时从redis拿值相对比,就能判断是否正确。

测试redis是否连接成功

redis连接成功!!!

在这里插入图片描述

详细代码

后端

相关代码参考jwt
在这里插入图片描述
CorsFilter

package com.zking.vue.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 配置tomcat允许跨域访问
 * 
 * @author Administrator
 *
 */
public class CorsFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
	}

	// @Override
	// public void doFilter(ServletRequest servletRequest, ServletResponse
	// servletResponse, FilterChain filterChain)
	// throws IOException, ServletException {
	// HttpServletResponse httpResponse = (HttpServletResponse) servletResponse;
	//
	// // Access-Control-Allow-Origin就是我们需要设置的域名
	// // Access-Control-Allow-Headers跨域允许包含的头。
	// // Access-Control-Allow-Methods是允许的请求方式
	// httpResponse.addHeader("Access-Control-Allow-Origin", "*");// *,任何域名
	// httpResponse.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT,
	// DELETE");
	// // httpResponse.setHeader("Access-Control-Allow-Headers", "Origin,
	// // X-Requested-With, Content-Type, Accept");
	//
	// // 允许请求头Token
	// httpResponse.setHeader("Access-Control-Allow-Headers",
	// "Origin,X-Requested-With, Content-Type, Accept, Token");
	// HttpServletRequest req = (HttpServletRequest) servletRequest;
	// System.out.println("Token=" + req.getHeader("Token"));
	// if("OPTIONS".equals(req.getMethod())) {
	// return;
	// }
	//
	//
	// filterChain.doFilter(servletRequest, servletResponse);
	// }

	@Override
	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
			throws IOException, ServletException {
		HttpServletResponse resp = (HttpServletResponse) servletResponse;
		HttpServletRequest req = (HttpServletRequest) servletRequest;

		// Access-Control-Allow-Origin就是我们需要设置的域名
		// Access-Control-Allow-Headers跨域允许包含的头。
		// Access-Control-Allow-Methods是允许的请求方式
		resp.setHeader("Access-Control-Allow-Origin", "*");// *,任何域名
		resp.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE");
		// resp.setHeader("Access-Control-Allow-Headers", "Origin,X-Requested-With,
		// Content-Type, Accept");
		// 允许客户端,发一个新的请求头jwt
		resp.setHeader("Access-Control-Allow-Headers", "Origin,X-Requested-With, Content-Type, Accept, jwt");

		// 允许客户端,处理一个新的响应头jwt
		resp.setHeader("Access-Control-Expose-Headers", "jwt");
		// String sss = resp.getHeader("Access-Control-Expose-Headers");
		// System.out.println("sss=" + sss);

		// 允许请求头Token
		// httpResponse.setHeader("Access-Control-Allow-Headers","Origin,X-Requested-With,
		// Content-Type, Accept, Token");
		// System.out.println("Token=" + req.getHeader("Token"));

		if ("OPTIONS".equals(req.getMethod())) {// axios的ajax会发两次请求,第一次提交方式为:option,直接返回即可
			return;
		}
		filterChain.doFilter(servletRequest, servletResponse);
	}

	@Override
	public void destroy() {

	}
}

JwtUtils

package com.zking.vue.util;

import java.util.Date;
import java.util.Map;
import java.util.UUID;

import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.JwtBuilder;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

/**
 * JWT验证过滤器:配置顺序 CorsFilte->JwtUtilsr-->StrutsPrepareAndExecuteFilter
 *
 */
public class JwtUtils {
	/**
	 * JWT_WEB_TTL:WEBAPP应用中token的有效时间,默认30分钟
	 */
	public static final long JWT_WEB_TTL = 30 * 60 * 1000;

	/**
	 * 将jwt令牌保存到header中的key
	 */
	public static final String JWT_HEADER_KEY = "jwt";

	// 指定签名的时候使用的签名算法,也就是header那部分,jjwt已经将这部分内容封装好了。
	private static final SignatureAlgorithm SIGNATURE_ALGORITHM = SignatureAlgorithm.HS256;
	private static final String JWT_SECRET = "f356cdce935c42328ad2001d7e9552a3";// JWT密匙
	private static final SecretKey JWT_KEY;// 使用JWT密匙生成的加密key

	static {
		byte[] encodedKey = Base64.decodeBase64(JWT_SECRET);
		JWT_KEY = new SecretKeySpec(encodedKey, 0, encodedKey.length, "AES");
	}

	private JwtUtils() {
	}

	/**
	 * 解密jwt,获得所有声明(包括标准和私有声明)
	 * 
	 * @param jwt
	 * @return
	 * @throws Exception
	 */
	public static Claims parseJwt(String jwt) {
		Claims claims = Jwts.parser().setSigningKey(JWT_KEY).parseClaimsJws(jwt).getBody();
		return claims;
	}

	/**
	 * 创建JWT令牌,签发时间为当前时间
	 * 
	 * @param claims
	 *            创建payload的私有声明(根据特定的业务需要添加,如果要拿这个做验证,一般是需要和jwt的接收方提前沟通好验证方式的)
	 * @param ttlMillis
	 *            JWT的有效时间(单位毫秒),当前时间+有效时间=过期时间
	 * @return jwt令牌
	 */
	public static String createJwt(Map<String, Object> claims, long ttlMillis) {
		// 生成JWT的时间,即签发时间
		long nowMillis = System.currentTimeMillis();

		// 下面就是在为payload添加各种标准声明和私有声明了
		// 这里其实就是new一个JwtBuilder,设置jwt的body
		JwtBuilder builder = Jwts.builder()
				// 如果有私有声明,一定要先设置这个自己创建的私有的声明,这个是给builder的claim赋值,一旦写在标准的声明赋值之后,就是覆盖了那些标准的声明的
				.setClaims(claims)
				// 设置jti(JWT ID):是JWT的唯一标识,根据业务需要,这个可以设置为一个不重复的值,主要用来作为一次性token,从而回避重放攻击。
				// 可以在未登陆前作为身份标识使用
				.setId(UUID.randomUUID().toString().replace("-", ""))
				// iss(Issuser)签发者,写死
				// .setIssuer("zking")
				// iat: jwt的签发时间
				.setIssuedAt(new Date(nowMillis))
				// 代表这个JWT的主体,即它的所有人,这个是一个json格式的字符串,可放数据{"uid":"zs"}。此处没放
				// .setSubject("{}")
				// 设置签名使用的签名算法和签名使用的秘钥
				.signWith(SIGNATURE_ALGORITHM, JWT_KEY)
				// 设置JWT的过期时间
				.setExpiration(new Date(nowMillis + ttlMillis));

		return builder.compact();
	}

	/**
	 * 复制jwt,并重新设置签发时间(为当前时间)和失效时间
	 * 
	 * @param jwt
	 *            被复制的jwt令牌
	 * @param ttlMillis
	 *            jwt的有效时间(单位毫秒),当前时间+有效时间=过期时间
	 * @return
	 */
	public static String copyJwt(String jwt, Long ttlMillis) {
		Claims claims = parseJwt(jwt);

		// 生成JWT的时间,即签发时间
		long nowMillis = System.currentTimeMillis();

		// 下面就是在为payload添加各种标准声明和私有声明了
		// 这里其实就是new一个JwtBuilder,设置jwt的body
		JwtBuilder builder = Jwts.builder()
				// 如果有私有声明,一定要先设置这个自己创建的私有的声明,这个是给builder的claim赋值,一旦写在标准的声明赋值之后,就是覆盖了那些标准的声明的
				.setClaims(claims)
				// 设置jti(JWT ID):是JWT的唯一标识,根据业务需要,这个可以设置为一个不重复的值,主要用来作为一次性token,从而回避重放攻击。
				// 可以在未登陆前作为身份标识使用
//				.setId(UUID.randomUUID().toString().replace("-", ""))
				// iss(Issuser)签发者,写死
				// .setIssuer("zking")
				// iat: jwt的签发时间
				.setIssuedAt(new Date(nowMillis))
				// 代表这个JWT的主体,即它的所有人,这个是一个json格式的字符串,可放数据{"uid":"zs"}。此处没放
				// .setSubject("{}")
				// 设置签名使用的签名算法和签名使用的秘钥
				.signWith(SIGNATURE_ALGORITHM, JWT_KEY)
				// 设置JWT的过期时间
				.setExpiration(new Date(nowMillis + ttlMillis));
		return builder.compact();
	}
}

pom.xml

<dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>2.9.0</version>
      </dependency>

UserAction

package com.zking.vue.web;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.opensymphony.xwork2.ModelDriven;
import com.zking.base.web.BaseAction;
import com.zking.vue.biz.UserBiz;
import com.zking.vue.entity.User;
import com.zking.vue.util.JsonData;
import com.zking.vue.util.JwtUtils;
import com.zking.vue.util.PageBean;
import com.zking.vue.util.ResponseUtil;
import com.zking.vue.util.StringUtils;
import redis.clients.jedis.Jedis;
public class UserAction extends BaseAction implements ModelDriven<User>{

	private UserBiz userBiz;
	private User user = new User();

	public UserBiz getUserBiz() {
		return userBiz;
	}

	public void setUserBiz(UserBiz userBiz) {
		this.userBiz = userBiz;
	}
private static Jedis jedis;
	
	static {
		jedis = new Jedis("192.168.192.130", 6379);
	    jedis.auth("123456");//权限认证
	    System.out.println(jedis.ping());

	}
	
	public String login() {
		ObjectMapper om = new ObjectMapper();
		JsonData jsonData = null;
		try {
			String verificationCode=request.getParameter("verificationCode");
			//从redis里面拿值
			String code=jedis.get("code");
			
			System.out.println("输入的验证码:"+verificationCode);
			System.out.println("redis的验证码:"+code);
			
			if(StringUtils.isBlank(user.getUname()) || StringUtils.isBlank(user.getPwd())) {
				jsonData = new JsonData(0, "用户或者密码为空", user);
			}else if(!code.equals(verificationCode)|| verificationCode==null ){
				jsonData = new JsonData(0, "验证码错误或为空", user);

			}			
			else {
				User u = this.userBiz.login(user);
				Map<String, Object> claims = new HashMap<String, Object>();
				claims.put("uname",user.getUname());
				claims.put("pwd", user.getPwd());
				String jwt = JwtUtils.createJwt(claims, JwtUtils.JWT_WEB_TTL);
				response.setHeader(JwtUtils.JWT_HEADER_KEY, jwt);
				jsonData = new JsonData(1, "登录成功", u);
			}
		} catch (Exception e) {
			e.printStackTrace();
			jsonData = new JsonData(0, "用户或者密码错误", user);
		}finally {
			try {
				ResponseUtil.write(response, om.writeValueAsString(jsonData));
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		
		return null;
	}
	/**
	 * 生成随机数
	 * @return
	 */
	public String userCode() {
		Random ra = new Random();
		String sCode = "A,B,C,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,W,X,Y,Z,1,2,3,4,5,6,7,8,9,0";
		String[] split = sCode.split(",");
		String sb = new String();
		
		for (int i = 0; i < 4; i++) {
			System.out.println(ra.nextInt(30));
			sb+=(split[ra.nextInt(30)]);
		}
		
		ObjectMapper om = new ObjectMapper();
		JsonData jsonData = null;
		try {
			jsonData = new JsonData(0, sb, user);
			ResponseUtil.write(response, om.writeValueAsString(jsonData));
			
			
		} catch (Exception e) {
			System.out.println(e);
		}
		//把验证码放到Redis缓存里
		jedis.set("code", sb);
	
		
		return null;
	}
	public static void main(String[] args) {
		UserAction us = new UserAction();
		us.userCode();
	}
	
	
	

	@Override
	public User getModel() {
		return user;
	}
}

前台

需要改动api/action.js,和login.vue

Login.vue

<template>
	<div class="login-wrap">
		<el-form :model="ruleForm" label-width="100px" class="demo-ruleForm login-container">
			<h3 style="text-align: center;">用户登录</h3>
			<el-form-item label="用户名">
				<el-input type="text" v-model="ruleForm.uname"></el-input>
			</el-form-item>
			<el-form-item label="密码">
				<el-input type="password" v-model="ruleForm.pwd"></el-input>
			</el-form-item>
			<el-form-item label="验证码">
				<el-row>
					<el-col :span="16">
						<el-input type="text" v-model="ruleForm.verificationCode" placeholder="请输入验证码"></el-input>

					</el-col>

					<el-col :span="8">
						<!-- {{code}} -->
						<img id="img" :src="ruleForm.verificationCodeSrc" width="116px" height="40px" @click="changeVerificationCode">
					</el-col>

				</el-row>
			</el-form-item>
			<el-form-item label="">

				<el-row>
					<el-col :span="24">
						<div class="grid-content bg-purple-dark">
							<el-button type="primary" style="width:100%;" @click="doLogin">提交</el-button>
						</div>
					</el-col>
				</el-row>
				<el-row>
					<!-- 添加一个事件事件对应方法 -->
					<el-col :span="12">
						<div class="grid-content bg-purple-dark">
							<el-link type="success" @click="toReg">用户注册</el-link>
						</div>
					</el-col>
					<el-col :span="12">
						<div class="grid-content bg-purple-dark">
							<el-link type="success">忘记密码</el-link>
						</div>
					</el-col>
				</el-row>
			</el-form-item>
		</el-form>
	</div>
</template>

<script>
	export default {
		data() {
			return {
				ruleForm: {
					uname: 'zs',
					pwd: '123',
					verificationCode: '',
					verificationCodeSrc: '',
				},
				code: null,
			};
		},
		methods: {
			//添加方法
			toReg() {
				this.$router.push({
					path: '/Reg'
				});
			},
			doLogin() {
				let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
				console.log(url)
				// var methis=this;
				this.axios.post(url, this.ruleForm).then(resp => {
					console.log(resp);

					// if (resp.data.code == 1) {//ssh登录

					if (resp.data.status == 200) { //ssm登录
						this.$message({
							message: resp.data.msg,
							type: 'success'
						});
						alert("111")
						this.$router.push({
							path: '/AppMain'
						});

						//这是将用户信息保持下来
						//                         let user=resp.data.data
						//                         this.$store.dispatch('setUserAsync',{
						//                             user:user
						//                         });
					} else {
						this.$message({
							message: resp.data.msg,
							type: 'warning'
						});
					}


				}).catch(resp => {
					this.$message({
						message: "请求异常",
						type: 'error'
					});
				});

			},
			//更新验证码
			changeVerificationCode() {
				let url = this.axios.urls.VERIFICATION;
				this.axios.post(url, {}).then(resp => {
					this.verificationCodeSrc = resp.data;
					// this.code = resp.data.msg;
				}).catch(resp => {
					console.log(resp);
				});

			}
		},
		created() {
			//加载验证码

			let url = this.axios.urls.VERIFICATION;
			console.log(url)
			this.axios.post(url, {}).then(resp => {
				console.log("验证码:" + resp)
					// this.code = resp.data.msg;//ssh
				this.ruleForm.verificationCodeSrc = resp.data;//ssm
				
			}).catch(resp => {
				console.log(resp);
			});
		}
	}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
  .login-wrap {
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    padding-top: 10%;
    background-image: url(data:image/svg+xml;base64,<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg width="1361px" height="609px" viewBox="0 0 1361 609" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
    <!-- Generator: Sketch 46.2 (44496) - http://www.bohemiancoding.com/sketch -->
    <title>Group 21</title>
    <desc>Created with Sketch.</desc>
    <defs></defs>
    <g id="Ant-Design-Pro-3.0" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
        <g id="账户密码登录-校验" transform="translate(-79.000000, -82.000000)">
            <g id="Group-21" transform="translate(77.000000, 73.000000)">
                <g id="Group-18" opacity="0.8" transform="translate(74.901416, 569.699158) rotate(-7.000000) translate(-74.901416, -569.699158) translate(4.901416, 525.199158)">
                    <ellipse id="Oval-11" fill="#CFDAE6" opacity="0.25" cx="63.5748792" cy="32.468367" rx="21.7830479" ry="21.766008"></ellipse>
                    <ellipse id="Oval-3" fill="#CFDAE6" opacity="0.599999964" cx="5.98746479" cy="13.8668601" rx="5.2173913" ry="5.21330997"></ellipse>
                    <path d="M38.1354514,88.3520215 C43.8984227,88.3520215 48.570234,83.6838647 48.570234,77.9254015 C48.570234,72.1669383 43.8984227,67.4987816 38.1354514,67.4987816 C32.3724801,67.4987816 27.7006688,72.1669383 27.7006688,77.9254015 C27.7006688,83.6838647 32.3724801,88.3520215 38.1354514,88.3520215 Z" id="Oval-3-Copy" fill="#CFDAE6" opacity="0.45"></path>
                    <path d="M64.2775582,33.1704963 L119.185836,16.5654915" id="Path-12" stroke="#CFDAE6" stroke-width="1.73913043" stroke-linecap="round" stroke-linejoin="round"></path>
                    <path d="M42.1431708,26.5002681 L7.71190162,14.5640702" id="Path-16" stroke="#E0B4B7" stroke-width="0.702678964" opacity="0.7" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="1.405357899873153,2.108036953469981"></path>
                    <path d="M63.9262187,33.521561 L43.6721326,69.3250951" id="Path-15" stroke="#BACAD9" stroke-width="0.702678964" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="1.405357899873153,2.108036953469981"></path>
                    <g id="Group-17" transform="translate(126.850922, 13.543654) rotate(30.000000) translate(-126.850922, -13.543654) translate(117.285705, 4.381889)" fill="#CFDAE6">
                        <ellipse id="Oval-4" opacity="0.45" cx="9.13482653" cy="9.12768076" rx="9.13482653" ry="9.12768076"></ellipse>
                        <path d="M18.2696531,18.2553615 C18.2696531,13.2142826 14.1798519,9.12768076 9.13482653,9.12768076 C4.08980114,9.12768076 0,13.2142826 0,18.2553615 L18.2696531,18.2553615 Z" id="Oval-4" transform="translate(9.134827, 13.691521) scale(-1, -1) translate(-9.134827, -13.691521) "></path>
                    </g>
                </g>
                <g id="Group-14" transform="translate(216.294700, 123.725600) rotate(-5.000000) translate(-216.294700, -123.725600) translate(106.294700, 35.225600)">
                    <ellipse id="Oval-2" fill="#CFDAE6" opacity="0.25" cx="29.1176471" cy="29.1402439" rx="29.1176471" ry="29.1402439"></ellipse>
                    <ellipse id="Oval-2" fill="#CFDAE6" opacity="0.3" cx="29.1176471" cy="29.1402439" rx="21.5686275" ry="21.5853659"></ellipse>
                    <ellipse id="Oval-2-Copy" stroke="#CFDAE6" opacity="0.4" cx="179.019608" cy="138.146341" rx="23.7254902" ry="23.7439024"></ellipse>
                    <ellipse id="Oval-2" fill="#BACAD9" opacity="0.5" cx="29.1176471" cy="29.1402439" rx="10.7843137" ry="10.7926829"></ellipse>
                    <path d="M29.1176471,39.9329268 L29.1176471,18.347561 C23.1616351,18.347561 18.3333333,23.1796097 18.3333333,29.1402439 C18.3333333,35.1008781 23.1616351,39.9329268 29.1176471,39.9329268 Z" id="Oval-2" fill="#BACAD9"></path>
                    <g id="Group-9" opacity="0.45" transform="translate(172.000000, 131.000000)" fill="#E6A1A6">
                        <ellipse id="Oval-2-Copy-2" cx="7.01960784" cy="7.14634146" rx="6.47058824" ry="6.47560976"></ellipse>
                        <path d="M0.549019608,13.6219512 C4.12262681,13.6219512 7.01960784,10.722722 7.01960784,7.14634146 C7.01960784,3.56996095 4.12262681,0.670731707 0.549019608,0.670731707 L0.549019608,13.6219512 Z" id="Oval-2-Copy-2" transform="translate(3.784314, 7.146341) scale(-1, 1) translate(-3.784314, -7.146341) "></path>
                    </g>
                    <ellipse id="Oval-10" fill="#CFDAE6" cx="218.382353" cy="138.685976" rx="1.61764706" ry="1.61890244"></ellipse>
                    <ellipse id="Oval-10-Copy-2" fill="#E0B4B7" opacity="0.35" cx="179.558824" cy="175.381098" rx="1.61764706" ry="1.61890244"></ellipse>
                    <ellipse id="Oval-10-Copy" fill="#E0B4B7" opacity="0.35" cx="180.098039" cy="102.530488" rx="2.15686275" ry="2.15853659"></ellipse>
                    <path d="M28.9985381,29.9671598 L171.151018,132.876024" id="Path-11" stroke="#CFDAE6" opacity="0.8"></path>
                </g>
                <g id="Group-10" opacity="0.799999952" transform="translate(1054.100635, 36.659317) rotate(-11.000000) translate(-1054.100635, -36.659317) translate(1026.600635, 4.659317)">
                    <ellipse id="Oval-7" stroke="#CFDAE6" stroke-width="0.941176471" cx="43.8135593" cy="32" rx="11.1864407" ry="11.2941176"></ellipse>
                    <g id="Group-12" transform="translate(34.596774, 23.111111)" fill="#BACAD9">
                        <ellipse id="Oval-7" opacity="0.45" cx="9.18534718" cy="8.88888889" rx="8.47457627" ry="8.55614973"></ellipse>
                        <path d="M9.18534718,17.4450386 C13.8657264,17.4450386 17.6599235,13.6143199 17.6599235,8.88888889 C17.6599235,4.16345787 13.8657264,0.332739156 9.18534718,0.332739156 L9.18534718,17.4450386 Z" id="Oval-7"></path>
                    </g>
                    <path d="M34.6597385,24.809694 L5.71666084,4.76878945" id="Path-2" stroke="#CFDAE6" stroke-width="0.941176471"></path>
                    <ellipse id="Oval" stroke="#CFDAE6" stroke-width="0.941176471" cx="3.26271186" cy="3.29411765" rx="3.26271186" ry="3.29411765"></ellipse>
                    <ellipse id="Oval-Copy" fill="#F7E1AD" cx="2.79661017" cy="61.1764706" rx="2.79661017" ry="2.82352941"></ellipse>
                    <path d="M34.6312443,39.2922712 L5.06366663,59.785082" id="Path-10" stroke="#CFDAE6" stroke-width="0.941176471"></path>
                </g>
                <g id="Group-19" opacity="0.33" transform="translate(1282.537219, 446.502867) rotate(-10.000000) translate(-1282.537219, -446.502867) translate(1142.537219, 327.502867)">
                    <g id="Group-17" transform="translate(141.333539, 104.502742) rotate(275.000000) translate(-141.333539, -104.502742) translate(129.333539, 92.502742)" fill="#BACAD9">
                        <circle id="Oval-4" opacity="0.45" cx="11.6666667" cy="11.6666667" r="11.6666667"></circle>
                        <path d="M23.3333333,23.3333333 C23.3333333,16.8900113 18.1099887,11.6666667 11.6666667,11.6666667 C5.22334459,11.6666667 0,16.8900113 0,23.3333333 L23.3333333,23.3333333 Z" id="Oval-4" transform="translate(11.666667, 17.500000) scale(-1, -1) translate(-11.666667, -17.500000) "></path>
                    </g>
                    <circle id="Oval-5-Copy-6" fill="#CFDAE6" cx="201.833333" cy="87.5" r="5.83333333"></circle>
                    <path d="M143.5,88.8126685 L155.070501,17.6038544" id="Path-17" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <path d="M17.5,37.3333333 L127.466252,97.6449735" id="Path-18" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <polyline id="Path-19" stroke="#CFDAE6" stroke-width="1.16666667" points="143.902597 120.302281 174.935455 231.571342 38.5 147.510847 126.366941 110.833333"></polyline>
                    <path d="M159.833333,99.7453842 L195.416667,89.25" id="Path-20" stroke="#E0B4B7" stroke-width="1.16666667" opacity="0.6"></path>
                    <path d="M205.333333,82.1372105 L238.719406,36.1666667" id="Path-24" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <path d="M266.723424,132.231988 L207.083333,90.4166667" id="Path-25" stroke="#CFDAE6" stroke-width="1.16666667"></path>
                    <circle id="Oval-5" fill="#C1D1E0" cx="156.916667" cy="8.75" r="8.75"></circle>
                    <circle id="Oval-5-Copy-3" fill="#C1D1E0" cx="39.0833333" cy="148.75" r="5.25"></circle>
                    <circle id="Oval-5-Copy-2" fill-opacity="0.6" fill="#D1DEED" cx="8.75" cy="33.25" r="8.75"></circle>
                    <circle id="Oval-5-Copy-4" fill-opacity="0.6" fill="#D1DEED" cx="243.833333" cy="30.3333333" r="5.83333333"></circle>
                    <circle id="Oval-5-Copy-5" fill="#E0B4B7" cx="175.583333" cy="232.75" r="5.25"></circle>
                </g>
            </g>
        </g>
    </g>
</svg>);
    /* background-color: #112346; */
    background-repeat: no-repeat;
    background-position: center right;
    background-size: 100%;
  }

  .login-container {
    border-radius: 10px;
    margin: 0px auto;
    width: 350px;
    padding: 30px 35px 15px 35px;
    background: #fff;
    border: 1px solid #eaeaea;
    text-align: left;
    box-shadow: 0 0 20px 2px rgba(0, 0, 0, 0.1);
  }

  .title {
    margin: 0px auto 40px auto;
    text-align: center;
    color: #505458;
  }
</style>

redis存储验证码
在这里插入图片描述
在这里插入图片描述
前台显示:在这里插入图片描述

返回的数据类型
在这里插入图片描述

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转载自blog.csdn.net/weixin_44106334/article/details/103328696