SSM（Spring+SpringMVC+Mybatis）框架整合

1、数据准备

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for `admin`
-- ----------------------------
DROP TABLE IF EXISTS `admin`;
CREATE TABLE `admin` (
  `a_id` int(11) NOT NULL AUTO_INCREMENT,
  `a_name` varchar(20) NOT NULL,
  `a_pwd` varchar(20) NOT NULL,
  PRIMARY KEY (`a_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of admin
-- ----------------------------

-- ----------------------------
-- Table structure for `book`
-- ----------------------------
DROP TABLE IF EXISTS `book`;
CREATE TABLE `book` (
  `b_id` int(11) NOT NULL AUTO_INCREMENT,
  `b_ISBN` varchar(20) NOT NULL,
  `b_name` varchar(40) NOT NULL,
  `b_author` varchar(20) NOT NULL,
  `b_cid` int(11) NOT NULL,
  `b_cover` varchar(50) NOT NULL,
  `b_publish_time` date NOT NULL,
  `b_remark` varchar(255) NOT NULL,
  `b_num` int(11) NOT NULL,
  PRIMARY KEY (`b_id`),
  KEY `b_cid` (`b_cid`),
  CONSTRAINT `book_ibfk_1` FOREIGN KEY (`b_cid`) REFERENCES `category` (`c_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of book
-- ----------------------------

-- ----------------------------
-- Table structure for `category`
-- ----------------------------
DROP TABLE IF EXISTS `category`;
CREATE TABLE `category` (
  `c_id` int(11) NOT NULL AUTO_INCREMENT,
  `c_name` varchar(20) NOT NULL,
  PRIMARY KEY (`c_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of category
-- ----------------------------

-- ----------------------------
-- Table structure for `log`
-- ----------------------------
DROP TABLE IF EXISTS `log`;
CREATE TABLE `log` (
  `l_id` int(11) NOT NULL AUTO_INCREMENT,
  `l_uid` int(11) NOT NULL,
  `l_bid` int(11) NOT NULL,
  `l_begintime` date NOT NULL,
  `l_endtime` date NOT NULL,
  PRIMARY KEY (`l_id`),
  KEY `l_uid` (`l_uid`),
  KEY `l_bid` (`l_bid`),
  CONSTRAINT `log_ibfk_1` FOREIGN KEY (`l_uid`) REFERENCES `user` (`u_id`),
  CONSTRAINT `log_ibfk_2` FOREIGN KEY (`l_bid`) REFERENCES `book` (`b_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of log
-- ----------------------------

-- ----------------------------
-- Table structure for `user`
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `u_id` int(11) NOT NULL AUTO_INCREMENT,
  `u_name` varchar(20) NOT NULL,
  `u_pwd` varchar(20) NOT NULL,
  PRIMARY KEY (`u_id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '鲁班', '1234567890');
INSERT INTO `user` VALUES ('2', '杜甫', '123456');

2、新建项目

3、完善项目结构

4、导入所需jar包

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
</properties>

<dependencies>
    <!--Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.3.13.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.3.13.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>4.3.13.RELEASE</version>
    </dependency>
    <!--Mybatis -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.4.5</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.3.1</version>
    </dependency>
    <!--junit -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>
    <!--log4j -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <!--mysql连接驱动 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.43</version>
    </dependency>
    <!--c3p0连接池-->
    <dependency>
        <groupId>c3p0</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.1.2</version>
    </dependency>
    <!--jsp-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.0</version>
    </dependency>
    <!--jstl-->
    <dependency>
        <groupId>javax.servlet.jsp.jstl</groupId>
        <artifactId>jstl-api</artifactId>
        <version>1.2</version>
    </dependency>
    <!--servlet-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>3.0</version>
    </dependency>
    <!--lombok-->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.16.18</version>
    </dependency>
</dependencies>

5、编写实体类

User：

package com.ssm.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User implements Serializable {
    private Integer id;
    private String name;
    private String pwd;
}

6、编写dao层

UserDao：

package com.ssm.dao;
import com.ssm.pojo.User;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository("userDao")
public interface UserDao {
    void addUser(User user);

    void deleteUser(Integer id);

    void updateInfo(User user);

    List<User> queryAll();

    User queryById(Integer id);
}

7、根据dao层编写xml映射配置文件

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.ssm.dao.UserDao">
    <resultMap id="userMapper" type="User">
        <id property="id" column="u_id"/>
        <result property="name" column="u_name"/>
        <result property="pwd" column="u_pwd"/>
    </resultMap>

    <insert id="addUser" parameterType="User">
          insert into user(u_name,u_pwd) values (#{name},#{pwd})
    </insert>

    <select id="queryAll" resultMap="userMapper">
        select  u_id,u_name,u_pwd from user
    </select>

    <select id="queryById" resultMap="userMapper" parameterType="int">
        select * from user where u_id = #{id}
    </select>

    <update id="updateInfo" parameterType="User">
        update user set u_name = #{name},u_pwd = #{pwd} where u_id = #{id}
    </update>

    <delete id="deleteAdmin" parameterType="int">
        delete from user where u_id = #{id}
    </delete>
</mapper>

8、编写Mybatis主配置文件（mybatis-config.xml）

<?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>

    <typeAliases>
        <package name="com.ssm.pojo"/>
    </typeAliases>
    <mappers>
        <mapper resource="mapper/UserMapper.xml"/>
    </mappers>

</configuration>

9、编写Spring全局配置文件（ApplicationContext.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"
       xmlns:context="http://www.springframework.org/schema/context"
       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">

    <!--开启组件注解扫描-->
    <context:component-scan base-package="com.ssm">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--引入数据库配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!--配置c3p0数据源-->
    <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}"/>
    </bean>
    <!--配置SqlSessionFactory-->
    <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>
    <!--开启动态扫描dao层接口-->
    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"/>
    </bean>
    <!--事务-->
    <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
</beans>

10、编写service层

IUserService：

package com.ssm.service;

import com.ssm.pojo.User;

import java.util.List;

public interface IUserService {
    void addUser(User user);

    void deleteUser(Integer id);

    void updateInfo(User user);

    List<User> queryAll();

    User queryById(Integer id);
}

UserService：

package com.ssm.service.impl;
import com.ssm.dao.UserDao;
import com.ssm.pojo.User;
import com.ssm.service.IUserService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

@Service("userService")
public class UserService implements IUserService {
    @Resource
    private UserDao userDao;

    @Override
    public void addUser(User user) {
        userDao.addUser(user);
    }

    @Override
    public void deleteUser(Integer id) {
        userDao.deleteUser(id);
    }

    @Override
    public void updateInfo(User user) {
        userDao.updateInfo(user);
    }

    @Override
    public List<User> queryAll() {
        return userDao.queryAll();
    }

    @Override
    public User queryById(Integer id) {
        return userDao.queryById(id);
    }
}

11、spring整合Mybatis完成（测试）

import com.ssm.pojo.User;
import com.ssm.service.IUserService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import javax.annotation.Resource;
import java.util.List;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:ApplicationContext.xml")
public class UserTest {
    @Resource
    IUserService userService;

    @Test
    public void getAll() {
        List<User> users = userService.queryAll();
        for (User user : users) {
            System.out.println(user);
        }
    }
}

12、编写springmvc配置文件（springmvc.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"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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/mvc
    https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--资源过滤器-->
    <mvc:default-servlet-handler/>
    <!--注解驱动-->
    <mvc:annotation-driven/>
    <!--注解扫描-->
    <context:component-scan base-package="com.ssm.controller"/>
    <!--视图解析器-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/Pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

13、编写web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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_4_0.xsd"
         version="4.0">

    <display-name>Archetype Created Web Application</display-name>
    <!--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>
    <!--设置配置文件的路径-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:ApplicationContext.xml</param-value>
    </context-param>
    <!--配置DispatcherServlet前端控制器-->
    <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:springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--乱码过滤器-->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>

14、编写controller层

UserController：

package com.ssm.controller;

import com.ssm.pojo.User;
import com.ssm.service.IUserService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;

@RequestMapping("/user")
@Controller
public class UserController {
    @Resource
    IUserService userService;

    @RequestMapping("getUserInfo")
    public String test(Model model) {
        User user = userService.queryById(1);
        model.addAttribute("user", user);
        return "success";
    }
}

15、创建必要的测试页面

index.jsp：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<a href="/user/getUserInfo">点我测试!</a>
</body>
</html>

success.jsp：

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
Name:${user.name}
PassWord:${user.pwd}
</body>
</html>

16、整合完成，测试喽！

17、晒上项目结构图

18、其他配置文件

数据库配置文件：

jdbc.driver=com.mysql.jdbc.Driver
#数据库地址
jdbc.url=jdbc:mysql://localhost:3306/booksys?useUnicode=true&characterEncoding=utf8
#用户名
jdbc.username=root
#密码
jdbc.password=123456
#最大连接数
c3p0.maxPoolSize=30
#最小连接数
c3p0.minPoolSize=10
#关闭连接后不自动commit
c3p0.autoCommitOnClose=false
#获取连接超时时间
c3p0.checkoutTimeout=10000
#当获取连接失败重试次数
c3p0.acquireRetryAttempts=2

log4j日志配置文档：

log4j.rootLogger=debug,stdout, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=example.log
log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=5
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n