Shiro认证及 SSM整合

Shiro介绍------->链接：https://blog.csdn.net/qq_44854784/article/details/102534157

Pom依赖：

<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>

web.xml加一个过滤器

<!-- 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>

通过逆向工程将五张表生成对应的印象文件
在这里插入图片描述
MyRealm

package com.Tang.shiro;

import com.Tang.model.ShiroUser;
import com.Tang.sevice.ShiroUserService;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;

/**
 * @author Tang
 *
 * 认证的过程：
 * 1，获取数据源
 * 2，doGetAuthenticationInfo 将数据库的用户信息给subject主体做认证
 *      2.1，需要在当前realm中调用service来验证当前用户是否在数据库中存在
 *      2.2,盐加密
 *
 *
 */
public class MyRealm extends AuthorizingRealm {

    private ShiroUserService shiroUserService;

    public ShiroUserService getShiroUserService() {
        return shiroUserService;
    }

    public void setShiroUserService(ShiroUserService shiroUserService) {
        this.shiroUserService = shiroUserService;
    }

    /**
     * 授权
     * @param principalCollection
     * @return
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        return null;
    }

    /**
     * 认证
     * @param token
     * @return
     * @throws AuthenticationException
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String userName = token.getPrincipal().toString();
        String pwd = token.getCredentials().toString();
        ShiroUser user = this.shiroUserService.queryByName(userName);
        SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(
                user.getUsername(),
                user.getPassword(),
                ByteSource.Util.bytes(user.getSalt()),
                this.getName()
        );
        return null;
    }
}

整合文件:applicationContext-shiro.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <!--配置自定义的Realm-->
    <bean id="shiroRealm" class="com.Tang.shiro.MyRealm">
        <property name="ShiroUserService" ref="shiroUserService" />
        <!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
        <!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
        <!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
        <!--以下三个配置告诉shiro将如何对用户传来的明文密码进行加密-->
        <property name="credentialsMatcher">
            <bean id="credentialsMatcher" class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
                <!--指定hash算法为MD5-->
                <property name="hashAlgorithmName" value="md5"/>
                <!--指定散列次数为1024次-->
                <property name="hashIterations" value="1024"/>
                <!--true指定Hash散列值使用Hex加密存. false表明hash散列值用用Base64-encoded存储-->
                <property name="storedCredentialsHexEncoded" value="true"/>
            </bean>
        </property>
    </bean>

    <!--注册安全管理器-->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="shiroRealm" />
    </bean>

    <!--Shiro核心过滤器-->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <!-- Shiro的核心安全接口,这个属性是必须的 -->
        <property name="securityManager" ref="securityManager" />
        <!-- 身份验证失败，跳转到登录页面 -->
        <property name="loginUrl" value="/login"/>
        <!-- 身份验证成功，跳转到指定页面 -->
        <!--<property name="successUrl" value="/index.jsp"/>-->
        <!-- 权限验证失败，跳转到指定页面 -->
        <property name="unauthorizedUrl" value="/unauthorized.jsp"/>
        <!-- Shiro连接约束配置,即过滤链的定义 -->
        <property name="filterChainDefinitions">
            <value>
                <!--
                注：anon，authcBasic，auchc，user是认证过滤器
                    perms，roles，ssl，rest，port是授权过滤器
                -->
                <!--anon 表示匿名访问，不需要认证以及授权-->
                <!--authc表示需要认证 没有进行身份认证是不能进行访问的-->
                <!--roles[admin]表示角色认证，必须是拥有admin角色的用户才行-->
                /user/login=anon
                /user/updatePwd.jsp=authc
                /admin/*.jsp=roles[admin]
                /user/teacher.jsp=perms["user:update"]
               <!-- /css/**               = anon
                /images/**            = anon
                /js/**                = anon
                /                     = anon
                /user/logout          = logout
                /user/**              = anon
                /userInfo/**          = authc
                /dict/**              = authc
                /console/**           = roles[admin]
                /**                   = anon-->
            </value>
        </property>
    </bean>

    <!-- Shiro生命周期，保证实现了Shiro内部lifecycle函数的bean执行 -->
    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>
</beans>

配置中调用:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">


     <context:property-placeholder location="classpath:jdbc.properties,classpath:redis.properties"/>

	<!-- 整合mybatis -->
    <import resource="applicationContext-mybatis.xml"></import>

    <!-- 整合mybatis -->
    <import resource="applicationContext-redis.xml"></import>

    <import resource="applicationContext-shiro.xml"></import>

</beans>

测试：ShiroUserService

package com.Tang.sevice;

import com.Tang.mapper.ShiroUserMapper;
import com.Tang.model.ShiroUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @author Tang
 */
public interface ShiroUserService {

    /**
     * 用于shiro认证
     * @param userName
     * @return
     */
    public ShiroUser queryByName(String userName);

    int insert(ShiroUser record);
}

ShiroUserServiceImpl:

package com.Tang.sevice.impl;

import com.Tang.mapper.ShiroUserMapper;
import com.Tang.model.ShiroUser;
import com.Tang.sevice.ShiroUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @author Tang
 */
@Service("shiroUserService")
public class ShiroUserServiceImpl implements ShiroUserService {

    @Autowired
    private ShiroUserMapper shiroUserMapper;

    @Override
    public ShiroUser queryByName(String userName) {
        return shiroUserMapper.queryByName(userName);
    }

    @Override
    public int insert(ShiroUser record) {
        return shiroUserMapper.insert(record);
    }
}

ShiroUserController:

package com.Tang.controller;

import com.Tang.model.ShiroUser;
import com.Tang.sevice.ShiroUserService;
import com.Tang.util.PasswordHelper;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;


/**
 * @author Tang
 */
@Controller
public class ShiroUserController {

    @Autowired
    private ShiroUserService shiroUserService;


    @RequestMapping("/login")
    public String login(HttpServletRequest req, HttpServletResponse resp){
        Subject subject = SecurityUtils.getSubject();
        String uname = req.getParameter("username");
        String pwd = req.getParameter("password");
        UsernamePasswordToken token = new UsernamePasswordToken(uname,pwd);
        try {
            subject.login(token);
            return "main";
        }catch (Exception e) {
            req.setAttribute("msg","账户名或者密码错误");
            return "login";
        }

    }

    @RequestMapping("/logout")
    public String logout(HttpServletRequest req, HttpServletResponse resp){
        Subject subject = SecurityUtils.getSubject();
        subject.logout();
            return "login";

    }

    @RequestMapping("/zuche")
    public String zuche(HttpServletRequest req, HttpServletResponse resp){
        String uname = req.getParameter("username");
        String pwd = req.getParameter("password");
        String salt = PasswordHelper.createSalt();
        String credentials = PasswordHelper.createCredentials(pwd, salt);
        Date date = new Date();
        ShiroUser user = new ShiroUser(uname,credentials,salt,date);
        int i = shiroUserService.insert(user);
        if(i>0){
            req.setAttribute("msg","注册成功");
        }
        else{
            req.setAttribute("msg","注册失败");
        }
        return "login";

    }

}

工具类：PasswordHelper

package com.Tang.util;


import org.apache.shiro.crypto.RandomNumberGenerator;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.SimpleHash;

/**
 * 用于shiro权限认证的密码工具类
 */
public class PasswordHelper {

    /**
     * 随机数生成器
     */
    private static RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();

    /**
     * 指定hash算法为MD5
     */
    private static final String hashAlgorithmName = "md5";

    /**
     * 指定散列次数为1024次，即加密1024次
     */
    private static final int hashIterations = 1024;

    /**
     * true指定Hash散列值使用Hex加密存. false表明hash散列值用用Base64-encoded存储
     */
    private static final boolean storedCredentialsHexEncoded = true;

    /**
     * 获得加密用的盐
     *
     * @return
     */
    public static String createSalt() {
        return randomNumberGenerator.nextBytes().toHex();
    }

    /**
     * 获得加密后的凭证
     *
     * @param credentials 凭证(即密码)
     * @param salt        盐
     * @return
     */
    public static String createCredentials(String credentials, String salt) {
        SimpleHash simpleHash = new SimpleHash(hashAlgorithmName, credentials,
                salt, hashIterations);
        return storedCredentialsHexEncoded ? simpleHash.toHex() : simpleHash.toBase64();
    }


    /**
     * 进行密码验证
     *
     * @param credentials        未加密的密码
     * @param salt               盐
     * @param encryptCredentials 加密后的密码
     * @return
     */
    public static boolean checkCredentials(String credentials, String salt, String encryptCredentials) {
        return encryptCredentials.equals(createCredentials(credentials, salt));
    }

    public static void main(String[] args) {
        //盐
        String salt = createSalt();
        System.out.println(salt);
        System.out.println(salt.length());
        //凭证+盐加密后得到的密码
        String credentials = createCredentials("123456", salt);
        System.out.println(credentials);
        System.out.println(credentials.length());
        boolean b = checkCredentials("123456", salt, credentials);
        System.out.println(b);
    }
}

测试结果
在这里插入图片描述

TangCXY

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