ssm整合（spring,springmvc,mybatis）实现简单登录

其他 2020-04-24 00:07:37 阅读次数: 0

一.搭建基础框架（spring+springmvc整合）
二.将mybatis融合到基础框架
1.引入jar包 mybatis-spring-version.jar(mybatis与spring的粘合剂)

		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.1.2</version>
		</dependency>

2.将mybatis.xml文件引入springmvc的application.xml中。 根据datasource和mybatis-configure.xml创建SqlSessionFactory

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource"></property>  
        <property name="configLocation" value="classpath:config/mybatis/mybatis-config.xml"></property>  
    </bean>
  1. 将mapper文件引入application.xml中。 根据sqlSessionFactory及扫描到的所有mapper文件创建mapper代理对象并存放到spring IOC容器中。

	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
        <property name="basePackage" value="com.zzxtit.ssm.**.mapper"></property>  
        <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>  
    </bean>

4.编写代码
pom.xml

<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>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.2.0.RELEASE</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>

	<groupId>com.dilidili</groupId>
	<artifactId>ssm</artifactId>
	<version>0.0.1-SNAPSHOT</version>


	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-aop</artifactId>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.1.21</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<scope>runtime</scope>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.1.2</version>
		</dependency>
		<dependency>
			<groupId>com.github.pagehelper</groupId>
			<artifactId>pagehelper</artifactId>
			<version>5.1.11</version>
		</dependency>

		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<optional>true</optional>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.4</version>
		</dependency>
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>fastjson</artifactId>
		    <version>1.2.62</version>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	id="WebApp_ID" version="3.0">
	
	<!-- 
	
		配置前端控制器：
			作用：拦截所有的WEB请求
			
			/*  拦截所有的请求，一般用于开发前台网站
			
			/  一般用于开发普通工程
			
			*.action  *.do  一般用于开发后台管理系统
			
	 -->
	 <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:config/applicationContext-mybatis.xml</param-value>
  	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<!-- 
		spring ioc容器启动并根据上下文初始化
	 -->
		<servlet>
		<servlet-name>DispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:config/applicationContext-webmvc.xml</param-value>
		</init-param>
		</servlet>
	
	<servlet-mapping>
		<servlet-name>DispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	
	
	<!-- 
	可以在filter-mapping 通过servlet-name 标签配置当前过滤器过滤所有 当前配置的servletName接受的请求
	 -->
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<servlet-name>DispatcherServlet</servlet-name>
	</filter-mapping>
	
	<filter-mapping>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<servlet-name>DispatcherServlet</servlet-name>
		<!-- 
			所有被DispatcherServlet此servlet接收的请求都要被HiddenHttpMethodFilter所过滤
		 -->
	</filter-mapping>
	<error-page>
		<error-code>404</error-code>
		<location>/view/error.jsp</location>
	</error-page>
</web-app>

applicationContext-mybatis.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:util="http://www.springframework.org/schema/util"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        https://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util.xsd
        ">
   <!-- 
	筛选所控制的包
	 -->
    <context:component-scan base-package="com.dilidili.mapper"></context:component-scan>    
     <context:component-scan base-package="com.dilidili.service"></context:component-scan>  
    
 <!-- 
	不可使用DB.properties
	 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
		<property name="driverClassName" value="com.mysql.cj.jdbc.Driver"></property>
		<property name="url" value="jdbc:mysql://localhost:3306/demo?useUnicode=true&amp;characterEncoding=UTF-8&amp;useSSL=false&amp;serverTimezone=Asia/Shanghai&amp;zeroDateTimeBehavior=CONVERT_TO_NULL"></property>
		<property name="username" value="root"></property>
		<property name="password" value="2505"></property>
	</bean>
	
	
	<!-- 2.Mybatis 的 SqlSession的工厂：SqlSessionFactoryBean dataSource引用数据源 Mybatis   定义数据源，同意加载配置 -->  
	 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource"></property>  
        <property name="configLocation" value="classpath:config/mybatis.xml"></property>  
    </bean>
     
    
 	 <!-- 3. Mybatis自动扫描加载Sql映射文件/接口：MapperScannerConfigurer sqlSessionFactory   
        basePackage:指定sql映射文件/接口所在的包（自动扫描） -->  
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
        <property name="basePackage" value="com.dilidili.mapper"></property>  
        <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>  
    </bean>
	<!-- 
		实例化事务管理器
	 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>

	<!-- 
		编程式事务 事务管理模板
	 -->
	<bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
		<property name="transactionManager" ref="transactionManager"></property>
	</bean>
</beans>

applicationContext-webmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:util="http://www.springframework.org/schema/util"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        https://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        https://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/util
        http://www.springframework.org/schema/util/spring-util.xsd
        ">
   
    <context:component-scan base-package="com.dilidili.action"></context:component-scan>    
	
	<!-- 
	配置视图解析器
	 -->
	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/views/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>	
	
	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 上传文件的最大值， 单位为：字节  50*1024*1024 
		<property name="maxUploadSize" value="52428800"></property>
		-->
		<property name="maxUploadSize" value="#{50*1024*1024}"/>
		<property name="defaultEncoding" value="UTF-8"></property>
	</bean>
	
	<mvc:annotation-driven>
		 <mvc:message-converters>
		 	<!-- register-defaults="true"表示使用默认的消息转换器 -->
            <!-- FastJson(Spring4.2x以上版本设置) -->
            <!-- 使用@responsebody注解并且返回值类型为String时，返回的string字符串带有双引号"{'user':'songfs'}"，其原因是直接将string类型转成了json字符串，应该在json解析器之前添加字符串解析器-->
            <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
            <!-- FastJsonHttpMessageConverter4 使@ResponseBody支持返回Map<String,Object>等类型,它会自动转换为json-->
            <!-- 需要返回json时需要配置 produces = "application/json"。不需要再指定utf-8了 -->
            <bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                <!-- 加入支持的媒体类型 -->
                <property name="supportedMediaTypes">
                    <list>
                        <!-- 这里顺序不能反，一定先写text/html，不然IE执行AJAX时,返回JSON会出现下载文件 -->
                        <value>text/html;charset=UTF-8</value>
                        <value>application/json;charset=UTF-8</value>
                        <value>application/xml;charset=UTF-8</value>
                    </list>
                </property>
                <property name="fastJsonConfig">
                    <bean class="com.alibaba.fastjson.support.config.FastJsonConfig">
                        <property name="features">
                            <list>
                                <value>AllowArbitraryCommas</value>
                                <value>AllowUnQuotedFieldNames</value>
                                <value>DisableCircularReferenceDetect</value>
                            </list>
                        </property>
                        <property name="dateFormat" value="yyyy-MM-dd HH:mm:ss"/>
                    </bean>
                </property>
            </bean>
        </mvc:message-converters>
	</mvc:annotation-driven>
</beans>

mybatis.xml(基本没用)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<settings>
		<setting name="mapUnderscoreToCamelCase" value="true"/>
	</settings>
	-->
</configuration>

userMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.dilidili.mapper.userMapper">
	<resultMap type="com.dilidili.entity.Users" id="userinfo">
		<id column="user_id" property="userid" />
		<result column="user_name" property="userName" />
		<result column="user_password" property="userPasswd" />
		<result column="user_money" property="money" />
		<result column="user_vip" property="vip" />
		<result column="user_telNum" property="telNum" />
		<result column="user_black" property="black" />
		<result column="user_reportNum" property="reportNum" />
	</resultMap>
	<select id="select" resultMap="userinfo"><!-- 全局配置B可自定义resultType -->
		select user_id,user_name,user_password from users
	</select>
	<select id="exist" resultMap="userinfo"><!-- 全局配置B可自定义resultType -->
		select user_id,user_name,user_password from users where user_name=#{userName}
	</select>
	<select id="login" resultMap="userinfo"><!-- 全局配置B可自定义resultType -->
		select user_id,user_name,user_password from users where user_name=#{userName} and user_password=#{userPasswd}
	</select>
</mapper>

userMapper.java

package com.dilidili.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.dilidili.entity.Users;

public interface userMapper {
	public List<Users> select(Users user);
	public Users login(@Param("userName")String userName, @Param("userPasswd")String userPasswd);//有多个参数时需要@Param mybatis不会自动识别
	public Users exist(String userName);
}

service接口

package com.dilidili.service;

import java.util.List;

import com.dilidili.entity.Users;

public interface userService {
	public List<Users> select(Users user);
	public Users login(String userName, String userPasswd);
	public Users exist(String userName);
}

service实现类

package com.dilidili.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.dilidili.entity.Users;
import com.dilidili.mapper.userMapper;

@Service
public class userServiceImpt implements userService {
	@Autowired
	public userMapper usermapper;
	public List<Users> select(Users user){
		return usermapper.select(user);
	}
	public Users login(String userName, String userPasswd) {
		return usermapper.login(userName, userPasswd);
	}
	public Users exist(String userName) {
		return usermapper.exist(userName);
	}
}

控制层

package com.dilidili.action;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.dilidili.entity.Users;
import com.dilidili.service.userService;
@Controller
@RequestMapping("/user")
public class loginController {
	@Autowired
	private userService userService;
	@RequestMapping("/login")
	public String login(String userName,String userpasswd) {
		Users user = new Users();
		if(userService.exist(userName).equals(null)) {
			return "error";
		}if(userService.login(userName, userpasswd).equals(null)) {
			return "error";
		}else {
		
		
		return "success";}

	}
}

ssm不需要Dao层 使用mapper

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