SpringMVC整合MyBatis

于 2019-03-13 11:43:34 发布
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分类专栏： spring MyBatis springMVC 文章标签： spring springmvc mybatis
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本文链接：https://blog.youkuaiyun.com/typ1805/article/details/88528619
本文详细介绍如何在IntelliJ IDEA环境下使用Maven构建SSM（Spring+SpringMVC+Mybatis）框架，并进行单元测试及JSP页面展示。涵盖pom.xml依赖配置、spring-mvc.xml与spring-mybatis.xml配置、web.xml设置、db.properties数据库配置等关键步骤。

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使用IntelliJ IDEA 2017.3.4搭一下ssm（spring+springMVC+Mybatis）

一、项目结构

使用版本：

  • spring.version：4.3.5.RELEASE
  • mybatis.version：3.4.1
  • pagehelper.version：4.2.1
  • springMVC.version：4.0.5.RELEASE

二、创建项目

1、pom.xml依赖文件

<?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.springmvc.mybatis.demo</groupId>
    <artifactId>springmvc-mybatis</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>springmvc-mybatis Maven Webapp</name>
    <url>http://www.example.com</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring.version>4.3.5.RELEASE</spring.version>
        <mybatis.version>3.4.1</mybatis.version>
        <mybatis-spring.version>1.3.1</mybatis-spring.version>
        <c3p0.version>0.9.5.2</c3p0.version>
        <jstl.version>1.2</jstl.version>
        <lombok.version>1.16.18</lombok.version>
        <pagehelper.version>4.2.1</pagehelper.version>
        <fastjson.version>1.2.41</fastjson.version>
    </properties>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/javax/javaee-api -->
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>6.0</version>
            <scope>provided</scope>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!-- 实现slf4j接口并整合 -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.2</version>
        </dependency>
        <!-- JSON -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.7</version>
        </dependency>
        <!-- 数据库 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.41</version>
            <scope>runtime</scope>
        </dependency>
        <!-- 数据库连接池 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>${c3p0.version}</version>
        </dependency>
        <!-- MyBatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <!-- mybatis/spring整合包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>${mybatis-spring.version}</version>
        </dependency>
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.0.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.0.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>${jstl.version}</version>
        </dependency>
        <!-- jstl-api -->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl-api</artifactId>
            <version>${jstl.version}</version>
        </dependency>
        <!-- jstl-impl -->
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>jstl-impl</artifactId>
            <version>${jstl.version}</version>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>${fastjson.version}</version>
        </dependency>
        <!--pagehelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>${pagehelper.version}</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>springmvc-mybatis</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2、配置spring-mvc.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
       http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <!-- 扫描web相关的bean -->
    <context:component-scan base-package="com.springmvc.mybatis.demo.controller"/>

    <!-- 开启SpringMVC注解模式 -->
    <mvc:annotation-driven/>

    <!-- 静态资源默认servlet配置 -->
    <mvc:default-servlet-handler/>

    <!-- 配置jsp 显示ViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

3、配置web.xml文件

<?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_3_1.xsd"
         version="3.1">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

  <display-name>springmvc-mybatis</display-name>
  <description>springmvc-mybatis_0.0.1</description>

  <filter>
    <filter-name>encodingFilter</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>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <servlet>
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-*.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    <async-supported>true</async-supported>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

4、配置spring-mybatis.xml文件

<?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"
       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">

    <!-- 扫描service包下所有使用注解的类型 -->
    <context:component-scan base-package="com.springmvc.mybatis.demo.service"/>

    <!-- 配置数据库相关参数properties的属性：${url} -->
    <context:property-placeholder location="classpath:db.properties"/>

    <!-- 数据库连接池 -->
    <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}"/>
        <property name="maxPoolSize" value="${c3p0.maxPoolSize}"/>
        <property name="minPoolSize" value="${c3p0.minPoolSize}"/>
        <property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>
        <property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>
        <property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>
    </bean>

    <!-- 配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 扫描model包 使用别名 -->
        <property name="typeAliasesPackage" value="com.springmvc.mybatis.demo.entity"/>
        <!-- 扫描sql配置文件:mapper需要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        <!-- PageHelper分页配置 -->
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageHelper">
                    <property name="properties">
                        <value>
                            dialect=mysql
                            reasonable=true
                        </value>
                    </property>
                </bean>
            </array>
        </property>
    </bean>

    <!-- 配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.springmvc.mybatis.demo.mapper"/>
    </bean>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 配置基于注解的声明式事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

5、数据库信息配置db.properties文件

jdbc.driver=com.mysql.jdbc.Driver
#数据库地址
jdbc.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8
#用户名
jdbc.username=root
#密码
jdbc.password=admin
#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

6、业务逻辑就不在这里赘述了

7、数据库表

 所有整合完成，编写测试类进行测试。

三、测试

1、简单的根据id查询测试

package com.springmvc.mybatis.demo.mapper;

import com.alibaba.fastjson.JSON;
import com.springmvc.mybatis.demo.entity.User;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * 路径：com.springmvc.mybatis.demo.mapper
 * 类名：
 * 功能：《用一句描述一下》
 * 备注：
 * 创建人：typ
 * 创建时间：2019/3/12 14:55
 * 修改人：
 * 修改备注：
 * 修改时间：
 */
@Slf4j
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath:spring-mybatis.xml"})
public class UserMapperTest {

    @Autowired
    private UserMapper userMapper;

    @Test
    public void qryById() {
        // 1001、1002、1003
        User user = userMapper.qryById(1001);
        log.info("测试出参：{}", JSON.toJSON(user));
    }

}

测试结果：

11:26:00.141 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.qryById - ==>  Preparing: SELECT id,username,password FROM user WHERE id = ? 
11:26:00.187 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.qryById - ==> Parameters: 1001(Integer)
11:26:00.205 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.qryById - <==      Total: 1
11:26:00.210 [main] DEBUG org.mybatis.spring.SqlSessionUtils - Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@4e07b95f]
11:26:00.324 [main] INFO com.springmvc.mybatis.demo.mapper.UserMapperTest - 测试出参：{"password":"123456","id":1001,"username":"zhangsan"}

2、分页测试：

package com.springmvc.mybatis.demo.controller;

import com.alibaba.fastjson.JSON;
import com.github.pagehelper.PageInfo;
import com.springmvc.mybatis.demo.entity.User;
import com.springmvc.mybatis.demo.service.UserService;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * 路径：com.springmvc.mybatis.demo.controller
 * 类名：
 * 功能：《用一句描述一下》
 * 备注：
 * 创建人：typ
 * 创建时间：2019/3/13 10:10
 * 修改人：
 * 修改备注：
 * 修改时间：
 */
@Slf4j
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath:spring-mybatis.xml"})
public class UserControllerTest {

    @Autowired
    private UserService userService;

    @Test
    public void pageList(){
        PageInfo<User> pageList = userService.pageList(1,1);
        log.info("测试出参：{}", JSON.toJSON(pageList));
    }
}

测试结果：

11:27:35.273 [main] DEBUG org.mybatis.spring.transaction.SpringManagedTransaction - JDBC Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@3e6f3f28 [wrapping: com.mysql.jdbc.JDBC4Connection@7e19ebf0]] will not be managed by Spring
11:27:35.288 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.list_COUNT - ==>  Preparing: SELECT count(0) FROM user 
11:27:35.338 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.list_COUNT - ==> Parameters: 
11:27:35.359 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.list_COUNT - <==      Total: 1
11:27:35.365 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.list - ==>  Preparing: SELECT id,username,password FROM user limit ?,? 
11:27:35.366 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.list - ==> Parameters: 0(Integer), 1(Integer)
11:27:35.367 [main] DEBUG com.springmvc.mybatis.demo.mapper.UserMapper.list - <==      Total: 1
11:27:35.368 [main] DEBUG org.mybatis.spring.SqlSessionUtils - Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@6736fa8d]
11:27:35.501 [main] INFO com.springmvc.mybatis.demo.controller.UserControllerTest - 测试出参：{"lastPage":3,"navigatepageNums":[1,2,3],"startRow":1,"hasNextPage":true,"prePage":0,"nextPage":2,"endRow":1,"pageSize":1,"list":[{"password":"123456","id":1001,"username":"zhangsan"}],"pageNum":1,"navigatePages":8,"navigateFirstPage":1,"total":3,"pages":3,"firstPage":1,"size":1,"isLastPage":false,"hasPreviousPage":false,"navigateLastPage":3,"isFirstPage":true}

3、JSP页面测试（这里只是简单的测试）

main.jsp页面：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<body>
<table border="1" width="80%">
    <tr>
        <th>ID</th>
        <th>用户名</th>
        <th>用户密码</th>
        <th>操作</th>
    </tr>
    <c:forEach var="entity" items="${userList}">
        <tr>
            <th>${entity.id}</th>
            <td>${entity.username}</td>
            <td>${entity.password}</td>
            <td>
                <a href="edit/${entity.id}">编辑 | </a>
                <a href="deleteUserById/${entity.id}">删除</a>
            </td>
        </tr>
    </c:forEach>
</table>
</body>
</html>

用tomcat启动：

 浏览器请求：http://localhost:8080/user/main

源码下载：https://download.youkuaiyun.com/download/typ1805/11015947

友情提示：没有积分的可以留言，直接发你源码哦！

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