基于Eclipse根据Maven整合Spring + SpringMVC + MyBatis（SSM）框架（附带源码）

文章目录

• 前言
• 一、整合环境准备
• • 1、环境注明
  • 2、创建数据库和表结构语句
  • 3、配置Maven pom.xml
• 二、SSM框架整合
• • 1、SSM框架搭建配置
  • • （1）Spring和MyBatis配置
    • （2）SpringMVC配置
  • 2、日志配置文件
  • 3、整合初始测试
  • • （1）创建jsp页面，并编写controller代码
    • （2）整合初始测试结果
  • 4、Maven中使用MyBatis自动生成代码
  • 5、SSM框架整体测试
  • • （1）业务逻辑层
    • （2）数据访问层
    • （3）控制层
    • （4）视图层
    • （5）测试结果
• 三、框架整合源码的下载

前言

以下针对于Spring + SpringMVC + MyBatis（SSM）框架的整合，只是个人简单的理解介绍，简单记录提供参考

一、整合环境准备

1、环境注明

Eclipse、Maven 3.5.0、MySQL 8.0.18、JDK 1.8、Tomcat 8、Spring4X、MyBatis 3.4.5

2、创建数据库和表结构语句

在MySQL中运行：

CREATE DATABASE innerssm;
USE innerssm;

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for user_t
-- ----------------------------
DROP TABLE IF EXISTS `user_t`;
CREATE TABLE `user_t`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(40) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `password` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `age` int(4) NOT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of user_t
-- ----------------------------
INSERT INTO `user_t` VALUES (1, '测试用户', '123', 24);

SET FOREIGN_KEY_CHECKS = 1;
           

3、配置Maven pom.xml

创建Maven工程，具体创建Maven工程可以查看其他博主教程

pom.xml文件中引入依赖：

<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.sslt</groupId>
	<artifactId>innersystem</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<!-- spring版本号 -->
		<spring.version>4.3.10.RELEASE</spring.version>
		<!-- mybatis版本号 -->
		<mybatis.version>3.4.5</mybatis.version>
		<!-- log4j日志文件管理包版本 -->
		<slf4j.version>1.7.7</slf4j.version>
		<log4j.version>2.9.0</log4j.version>
		<!-- mysql版本号 -->
		<mysql.version>8.0.15</mysql.version>
	</properties>
	
	<dependencies>
		<!-- junit依赖 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>
		<!-- JavaEE依赖 -->
		<dependency>
			<groupId>javax</groupId>
			<artifactId>javaee-api</artifactId>
			<version>7.0</version>
			<scope>provided</scope>
		</dependency>
		<!-- 配置servlet -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1.0</version>
			<scope>provided</scope>
		</dependency>
		<!-- jsp依赖 -->
		<dependency>
			<groupId>javax.servlet.jsp</groupId>
			<artifactId>javax.servlet.jsp-api</artifactId>
			<version>2.3.1</version>
			<scope>provided</scope>
		</dependency>
		<!-- jstl依赖 -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		
		<!-- Spring核心依赖 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-expression</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		
		<!-- mybatis框架依赖包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<!-- spring mybatis依赖 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.3.1</version>
		</dependency>
		<!-- mysql数据库驱动 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>${mysql.version}</version>
		</dependency>
		<!-- c3p0连接池 -->
		<dependency>
		    <groupId>com.mchange</groupId>
		    <artifactId>c3p0</artifactId>
		    <version>0.9.5.2</version>
		</dependency>

		<!-- log4j依赖 -->
		<dependency>
			<groupId>org.apache.logging.log4j</groupId>
			<artifactId>log4j-core</artifactId>
			<version>${log4j.version}</version>
		</dependency>
		<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.1.41</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
		
		<!-- 文件上传依赖 -->
		<dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
		
	</dependencies>
	
	<!-- 配置使用的JDK版本 -->
	<profiles>
		<profile>
			<id>jdk-1.8</id>
			<activation>
				<activeByDefault>true</activeByDefault>
				<jdk>1.8</jdk>
			</activation>
			<properties>
				<maven.compiler.source>1.8</maven.compiler.source>
				<maven.compiler.target>1.8</maven.compiler.target>
				<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
			</properties>
		</profile>
	</profiles>
</project>
           

二、SSM框架整合

1、Spring：Spring框架是一个开放源代码的J2EE应用程序框架，是针对bean的生命周期进行管理的轻量级容器。提供了功能强大IOC、AOP及Web MVC等功能。Spring框架主要由七部分组成，分别是 Spring Core、 Spring AOP、 Spring ORM、 Spring DAO、Spring Context、 Spring Web和 Spring Web MVC。我们平时开发接触最多的估计就是IOC容器，可装载bean，另外Spring的AOP，事务管理等等都是我们经常用到的。Spring框架比较强大，并不能三言两语来概括，具体深入学习大家可以自己去了解学习—Spring官网

2、SpringMVC：SpringMVC是在Spring框架内置的MVC的实现。应用于web层，相当于Controller，用来处理用户请求。简单理解就是用户通过地址栏输入如：http://网站域名/login。SpringMVC就会拦截到这个请求，并且调用Controller层中相应的方法，经过一系列的业务逻辑等操作（其中这些都不是SpringMVC的职责），最终把结果返回给用户，并且返回相应的页面。就是处理前后过程表现，方便前后端数据的传输。

3、MyBatis：MyBatis 是支持定制化 SQL、存储过程以及高级映射的优秀的持久层框架。可以对配置和原生Map使用简单的 XML 或注解，将接口和 Java 的 POJOs映射成数据库中的记录。个人通俗理解就是能自由控制SQL，提升数据库访问的效率。可以使用 XML 的方式来组织管理我们的SQL，方便管理和后续优化。

1、SSM框架搭建配置

（1）Spring和MyBatis配置

在resources的资源文件目录管理XML配置文件

创建applicationContext.xml的配置文件，其中包括：

（1.1）Spring框架注解扫描配置；

（1.2）数据源c3p0连接池配置；

（1.3）Spring和MyBatis整合配置；

（1.4）事务管理配置；

编写具体的配置信息：

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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/aop 
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/tx 
        http://www.springframework.org/schema/tx/spring-tx.xsd">
		
		<!-- 开启spring的注解扫描 -->
		<context:component-scan base-package="com.sslt.service"></context:component-scan>
		<!-- 引入配置文件 -->
		<context:property-placeholder location="classpath:jdbc.properties"/>
		<!-- 配置数据源c3p0连接池 -->
		<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
	        <property name="driverClass" value="${jdbc.driver}" />
	        <property name="jdbcUrl" value="${jdbc.url}" />
	        <property name="user" value="${jdbc.username}" />
	        <property name="password" value="${jdbc.password}" />
	        <!-- 连接池中保留的最小连接数，默认为：3-->
	        <property name="minPoolSize" value="1" />
	        <!--连接池中保留的最大连接数。默认值: 15 -->
	        <property name="maxPoolSize" value="5" />
	        <!-- 初始化连接池中的连接数，取值应在minPoolSize与maxPoolSize之间，默认为3-->
	        <property name="initialPoolSize" value="1" />
	        <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。默认值: 3 -->
	        <property name="acquireIncrement" value="1" />
	    </bean>
	    
	    <!-- spring和MyBatis整合，不需要mybatis的配置映射文件 -->  
	    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
	    	<!-- 注入数据源 -->
	        <property name="dataSource" ref="dataSource" />  
	    	<!-- 扫描entity包 使用别名 -->
			<property name="typeAliasesPackage" value="com.sslt.entity" /> 
	        <!-- 自动扫描mapping.xml文件 -->  
	        <property name="mapperLocations" value="classpath:com/sslt/mapper/*.xml"></property>  
	    </bean>
	    
	    <!-- mapper扫描 -->
	    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
	        <property name="basePackage" value="com.sslt.mapper" />
	        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
	    </bean>
	    
	    <!-- 配置事务管理器 -->
	    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
	        <property name="dataSource" ref="dataSource" />
	    </bean>
	    
	    <!-- 开启注解事务管理器 -->
	    <tx:annotation-driven transaction-manager="transactionManager"/>
	    
</beans>
           

其中jdbc.properties数据源链接具体信息配置：

#数据库驱动
jdbc.driver=com.mysql.cj.jdbc.Driver
#数据库连接
jdbc.url=jdbc:mysql://localhost:3306/innerssm?characterEncoding=utf8&amp&serverTimezone=UTC
#用户名
jdbc.username=root
#用户密码
jdbc.password=123456

           

（2）SpringMVC配置

在resources的资源文件目录创建springMVC.xml的配置文件，编写配置文件内容：

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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/aop 
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/tx 
        http://www.springframework.org/schema/tx/spring-tx.xsd">
		
		<!-- 自动扫描该包 @controller注解的类-->  
    	<context:component-scan base-package="com.sslt.controller"/>
    	<!-- 开启springMVC的处理器映射器和处理器适配器的扫描 -->
    	<mvc:annotation-driven/>
    	<!-- 配置视图解析器-->  
	    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
	        <property name="prefix" value="/WEB-INF/pages/" />  
	        <property name="suffix" value=".jsp" />  
	    </bean>
	    
	    <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
		<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
			<!-- 默认编码 -->
			<property name="defaultEncoding" value="UTF-8" />
			<!-- 文件大小最大值 -->
			<property name="maxUploadSize" value="10485760000" />
			<!-- 内存中的最大值 -->
			<property name="maxInMemorySize" value="40960" />
		</bean>
	    
</beans>
           

（2.1）在web.xml中配置DispatcherServlet前端控制器

<!--配置前端控制器 -->
	<servlet>
		<servlet-name>dispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 加载SpringMVC的配置文件 -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springMVC.xml</param-value>
		</init-param>
		<!--启动服务器，创建该servlet -->
		<load-on-startup>1</load-on-startup>
		<async-supported>true</async-supported>
	</servlet>
	<servlet-mapping>
		<servlet-name>dispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
           

（2.2）在web.xml中配置解决中文乱码过滤器

<!--解决中文乱码的过滤器-->
    <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-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
           

（2.3）在web.xml中配置ContextLoaderListener监听器

Spring监听器，默认只加载WEB-INF目录下的Spring核心配置文件，为了方便配置文件管理，我们自定义配置加载，方便维护和管理。

ContextLoaderListener监听器配置：

<!-- Spring监听器，默认只加载WEB-INF目录下的applicationContext.xml配置文件 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
	<!--加载Spring核心配置文件 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
           

（2.4）web.xml中配置的整体配置

<?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"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	version="2.5">
	<display-name>innersystem</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>
	
	<!-- Spring监听器，默认只加载WEB-INF目录下的applicationContext.xml配置文件 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
	<!--加载Spring核心配置文件 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	
	<!--解决中文乱码的过滤器-->
    <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-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <!--配置前端控制器 -->
	<servlet>
		<servlet-name>dispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- 加载SpringMVC的配置文件 -->
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springMVC.xml</param-value>
		</init-param>
		<!--启动服务器，创建该servlet -->
		<load-on-startup>1</load-on-startup>
		<async-supported>true</async-supported>
	</servlet>
	<servlet-mapping>
		<servlet-name>dispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
</web-app>
           

2、日志配置文件

在resources的资源文件目录创建log4j.properties配置文件

log4j.properties具体配置信息：

log4j.rootLogger=INFO,fileout,stdout

#如果有特殊的包需要不同于根日志级别，在此配置
log4j.logger.com.ielpm.pay.df.tfb = INFO

# 控制台输出，上线时注释该段落
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d (%F:%L) %-5p %c - %m%n

#文件输出
log4j.appender.fileout.File=${catalina.home}/logs/innersystem/innersystem.log
log4j.appender.fileout.ImmediateFlush = false
log4j.appender.fileout.layout=org.apache.log4j.PatternLayout
log4j.appender.fileout.layout.ConversionPattern=%d [%t] (%F:%L) %-5p %c - %m%n
#Buffer size 8K
log4j.appender.fileout.BufferSize=8192
log4j.appender.file.encoding=UTF-8



           

3、整合初始测试

（1）创建jsp页面，并编写controller代码

在webapp下编写index.jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>项目测试</title>
</head>
<body>
	<a href="user/test">初始测试</a>
</body>
</html>
           

在WEB-INF/pages下编写user.jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>测试</title>
</head>
<body>
	<h1>测试成功...</h1>
</body>
</html>
           

在controller层中编写代码UserController.java类

package com.sslt.controller;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping(value = "/user")
public class UserController {
	
	/**
	 * 日志对象
	 */
	private final static Logger logger = Logger.getLogger(UserController.class);
	
    @RequestMapping(value = "/test")
    public String Index(HttpServletRequest request, Model model){
    	System.out.println("请求成功......");
    	logger.info("日志打印......");
        return "user";
    }
    
}


           

项目目录结构

（2）整合初始测试结果

tomcat运行innersystem项目，在浏览器访问地址：http://127.0.0.1:8080/innersystem/

点击 初始测试 后台处理结果：

点击 初始测试 前端响应页面：

4、Maven中使用MyBatis自动生成代码

在pom.xml中添加：

<build>
		<plugins>
			<!-- Mybatis Generator 代码自动生成插件 -->
			<plugin>
				<groupId>org.mybatis.generator</groupId>
				<artifactId>mybatis-generator-maven-plugin</artifactId>
				<version>1.3.5</version>
				<configuration>
					<configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile>
					<overwrite>true</overwrite>
					<verbose>true</verbose>
				</configuration>
			</plugin>
		</plugins>
	</build>
           

在resources的资源文件目录创建目录generator和generatorConfig.xml配置文件

generatorConfig.xml配置文件具体内容：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <!-- 数据库驱动:选择你的本地硬盘上面的数据库驱动包-->
    <classPathEntry location="D:/mysql-connector-java-8.0.18/mysql-connector-java-8.0.18.jar"/>
    <context id="DB2Tables"  targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <!-- 是否去除自动生成的注释 true：是 ; false:否 -->
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!--数据库连接驱动类,URL，用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1:3306/innerssm?serverTimezone=UTC" userId="root" password="123456">
        	<property name="nullCatalogMeansCurrent" value="true" />
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!-- 生成(实体)模型的包名和位置-->
        <javaModelGenerator targetPackage="com.sslt.entity" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!-- 生成XML映射文件的包名和位置-->
        <sqlMapGenerator targetPackage="com.sslt.mapper" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!-- 生成DAO接口的包名和位置-->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.sslt.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名-->
        <table tableName="user_t" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
        
    </context>
</generatorConfiguration>
           

其中数据库驱动包下载：

（1）在CSDN下载地址：驱动下载(https://download.csdn.net/download/u013526643/12566043)

（2）百度云盘下载：

链接：https://pan.baidu.com/s/1xLNb1LD1rcNbkkgUSJYEXw

提取码：rriq

（3）官网下载：https://dev.mysql.com/downloads/connector/j/

根据需求选择下载的Select Operating System下载最新的版本，这里选择–Platform Independent

历史版本选择–Archives

MyBatis自动生成代码流程：

选择系统右击选择–Run AS -->Maven build

在Goals框中输入：mybatis-generator:generate，点击：Run

再次自动生成代码时：

刷新项目：

User.java

package com.sslt.entity;

public class User {
    private Integer id;

    private String username;

    private String password;

    private Integer age;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username == null ? null : username.trim();
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password == null ? null : password.trim();
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}
           

UserMapper.java

package com.sslt.mapper;

import com.sslt.entity.User;

public interface UserMapper {
    int deleteByPrimaryKey(Integer id);

    int insert(User record);

    int insertSelective(User record);

    User selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(User record);

    int updateByPrimaryKey(User record);
}
           

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.sslt.mapper.UserMapper">
	<resultMap id="BaseResultMap" type="com.sslt.entity.User">
		<id column="id" jdbcType="INTEGER" property="id" />
		<result column="username" jdbcType="VARCHAR" property="username" />
		<result column="password" jdbcType="VARCHAR" property="password" />
		<result column="age" jdbcType="INTEGER" property="age" />
	</resultMap>
	<sql id="Base_Column_List">
		id, username, password, age
	</sql>
	<select id="selectByPrimaryKey" parameterType="java.lang.Integer"
		resultMap="BaseResultMap">
		select
		<include refid="Base_Column_List" />
		from user_t
		where id = #{id,jdbcType=INTEGER}
	</select>
	<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
		delete from user_t
		where id = #{id,jdbcType=INTEGER}
	</delete>
	<insert id="insert" parameterType="com.sslt.entity.User">
		insert into user_t (id, username, password,
		age)
		values (#{id,jdbcType=INTEGER}, #{username,jdbcType=VARCHAR},
		#{password,jdbcType=VARCHAR},
		#{age,jdbcType=INTEGER})
	</insert>
	<insert id="insertSelective" parameterType="com.sslt.entity.User">
		insert into user_t
		<trim prefix="(" suffix=")" suffixOverrides=",">
			<if test="id != null">
				id,
			</if>
			<if test="username != null">
				username,
			</if>
			<if test="password != null">
				password,
			</if>
			<if test="age != null">
				age,
			</if>
		</trim>
		<trim prefix="values (" suffix=")" suffixOverrides=",">
			<if test="id != null">
				#{id,jdbcType=INTEGER},
			</if>
			<if test="username != null">
				#{username,jdbcType=VARCHAR},
			</if>
			<if test="password != null">
				#{password,jdbcType=VARCHAR},
			</if>
			<if test="age != null">
				#{age,jdbcType=INTEGER},
			</if>
		</trim>
	</insert>
	<update id="updateByPrimaryKeySelective" parameterType="com.sslt.entity.User">
		update user_t
		<set>
			<if test="username != null">
				username = #{username,jdbcType=VARCHAR},
			</if>
			<if test="password != null">
				password = #{password,jdbcType=VARCHAR},
			</if>
			<if test="age != null">
				age = #{age,jdbcType=INTEGER},
			</if>
		</set>
		where id = #{id,jdbcType=INTEGER}
	</update>
	<update id="updateByPrimaryKey" parameterType="com.sslt.entity.User">
		update user_t
		set username = #{username,jdbcType=VARCHAR},
		password = #{password,jdbcType=VARCHAR},
		age = #{age,jdbcType=INTEGER}
		where id = #{id,jdbcType=INTEGER}
	</update>
</mapper>
           

5、SSM框架整体测试

（1）业务逻辑层

创建接口UserService.java类

package com.sslt.service;

import com.sslt.entity.User;

public interface UserService {
	
	/**
	 * 用户信息查询
	 * @param user
	 * @return
	 */
	public User selectParma(User user);
	
}

           

创建Service实现类UserServiceImpl.java，实现UserService.java的接口，注入数据访问层接口UserMapper

实现类UserServiceImpl.java

package com.sslt.service.impl;

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

import com.sslt.entity.User;
import com.sslt.mapper.UserMapper;
import com.sslt.service.UserService;

@Service
public class UserServiceImpl implements UserService {
	
	@Autowired
	private UserMapper userMapper;

	/**
	 * 用户信息查询
	 */
	public User selectParma(User user) {
		return userMapper.selectParma(user);
	}

}

           

（2）数据访问层

在UserMapper.java类中添加接口selectParma()

在UserMapper.xnl配置文件中添加接口**selectParma()**实现方法

<select id="selectParma" parameterType="com.sslt.entity.User"resultMap="BaseResultMap">
		select
		<include refid="Base_Column_List" />
		from user_t
		where username = #{username,jdbcType=VARCHAR} and password = #{password,jdbcType=VARCHAR}
	</select>
           

（3）控制层

在controller中的UserController.java添加：

/**
     * 跳转登录页面
     * @param request
     * @param model
     * @return
     */
    @RequestMapping(value = "/login")
    public String login(HttpServletRequest request, Model model){
    	logger.info("跳转登录页面......");
    	return "login";
    }
    
    /**
     * 用户登录处理
     * @param request
     * @param model
     * @return
     */
    @RequestMapping(value = "/userLogin")
    public String userLogin(HttpServletRequest request, Model model){
    	String view = "";
    	User user = new User();
    	user.setUsername(request.getParameter("username"));
    	user.setPassword(request.getParameter("password"));
    	logger.info("登录请求成功......");
    	User userParma = userService.selectParma(user);
    	if (userParma != null) {
    		model.addAttribute("user", userParma);
    		model.addAttribute("message", "登录成功");
    		view = "success";
    		logger.info("用户登录成功数据：" + userParma);
		} else {
			model.addAttribute("message", "登录失败");
			view = "error";
			logger.info("登录失败......");
		}
    	return view;
    }
           

（4）视图层

创建login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<title>登录</title>
</head>
<body>
	<div class="col-md-6 col-md-offset-3">
		<form role="form" action="userLogin" method="post">
			<div class="form-group"></div>
			<div class="form-group">
				<label for="username">用户名</label>
				<input type="text" class="form-control" name="username" id="username" value="" required />
			</div>
			<div class="form-group">
				<label for="amount">密码</label>
				<input type="password" class="form-control" name="password" id="password" value="" required />
			</div>
			<button type="submit" class="btn btn-primary ">登录</button>
		</form>
	</div>
</body>
</html>
           

创建成功页面success.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<title>登录成功</title>
</head>
<body>
	<div class="col-md-6 col-md-offset-3">
		<div class="panel panel-info">
			<div class="panel-heading">操作结果</div>
			<div class="panel-body">
			    <p style="word-break: break-word;">${message}</p>
			</div>
		</div>
		<div class="panel panel-info">
			<div class="panel-heading">返回具体参数</div>
			<div class="panel-body">
				<p style="word-break: break-word;">用户：${user.username}</p>
				<p style="word-break: break-word;">年龄：${user.age}</p>
			</div>
		</div>
	</div>
</body>
</html>
           

创建失败页面error.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<title>登录失败</title>
</head>
<body>
	<div class="col-md-6 col-md-offset-3">
		<div class="panel panel-info">
			<div class="panel-heading">操作结果</div>
			<div class="panel-body">
			    <p style="word-break: break-word;">${message}</p>
			</div>
		</div>
	</div>
</body>
</html>
           

（5）测试结果

tomcat运行innersystem项目，在浏览器访问地址：http://127.0.0.1:8080/innersystem/user/login

输入用户名和密码，登录成功页面：

输入用户名和密码，登录失败页面：

三、框架整合源码的下载

（1）在CSDN下载地址：SSM框架整合源码下载（https://download.csdn.net/download/u013526643/12567084）

（2）百度云盘下载：

链接：https://pan.baidu.com/s/13BIJstfgQmO3oYIipidQeQ

提取码：1s02