我的架构梦：（十）手写并整合ssm框架（Spring+SpringMVC+MyBatis）

Junit测试jar(4.12版本)
Mybatis的jar(3.4.5)
Spring相关jar(spring-context、spring-test、spring-jdbc、spring-tx、spring-aop、 aspectjweaver)
Mybatis/Spring整合包jar(mybatis-spring-xx.jar)
Mysql数据库驱动jar
Druid数据库连接池的jar

3、整合的pom文件

<!--junit-->
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>test</scope>
</dependency>
<!--mybatis-->
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.4.5</version>
</dependency>
<!--spring相关-->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.1.12.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
    <version>5.1.12.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>5.1.12.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-tx</artifactId>
    <version>5.1.12.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aop</artifactId>
    <version>5.1.12.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.8.9</version>
</dependency>
<!--mybatis与spring的整合包-->
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>2.0.3</version>
</dependency>
<!--数据库驱动jar-->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.19</version>
</dependency>
<!--druid连接池-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.21</version>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.12</version>
    <scope>provided</scope>
</dependency>

4、jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/spring
jdbc.username=root
jdbc.password=root

5、Spring 配置文件 applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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
       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
">

    <!--包扫描-->
    <context:component-scan base-package="com.riemann.service"/>

    <!--引入外部资源文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!--第三方jar中的bean定义在xml中-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--事务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--事务管理注解驱动-->
    <tx:annotation-driven transaction-manager="transactionManager" />

    <!--SqlSessionFactory对象应该放到Spring容器中作为单例对象管理
        原来mybaits中sqlSessionFactory的构建是需要素材的:SqlMapConfig.xml中的内容
    -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--别名映射扫描-->
        <property name="typeAliasesPackage" value="com.riemann.pojo"/>
        <!--数据源dataSource-->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--Mapper动态代理对象交给Spring管理，我们从Spring容器中直接获得Mapper的代理对象-->
    <!--扫描mapper接口，生成代理对象，生成的代理对象会存储在ioc容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--mapper接口包路径配置-->
        <property name="basePackage" value="com.riemann.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

</beans>

6、AccountMapper接口

public interface AccountMapper {

    // 定义dao层接口方法
    List<Account> queryAccountList() throws Exception;

}

7、AccountMapper.xml

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.riemann.mapper.AccountMapper">

    <select id="queryAccountList" resultType="com.riemann.pojo.Account">
        select * from account;
    </select>

</mapper>

8、测试程序

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:application*.xml"}) // 不用手动去启动一个容器了
public class MybatisSpringTest {

    // 希望测试ioc容器中的哪个对象你注入即可。
    @Autowired
    private AccountService accountService;

    @Test
    public void testMybatisSpring() throws Exception{
        List<Account> accounts = accountService.queryAccountList();
        System.out.println(accounts);
    }

}

查询的信息成功，这样一来，也就说明我们MyBatis整合Spring成功了，接下来在此基础上整合SpringMVC。

三、整合SpringMVC

1、整合思路

把SpringMVC的入⻔案例整合进来即可(在已有工程基础之上开发一个SpringMVC入⻔案例)

2、pom.xml依赖

<!--SpringMVC-->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>5.1.12.RELEASE</version>
</dependency>
<!--jsp-api&servlet-api-->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.0</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>
<!--json数据交互所需jar，start-->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.9.0</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.0</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.9.0</version>
</dependency>
<!--json数据交互所需jar，end-->

3、springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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
       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.xsd
">

    <!--扫描controller-->
    <context:component-scan base-package="com.riemann.controller"/>

    <!--配置springmvc注解驱动，自动注册合适的组件handlerMapping和handlerAdapter-->
    <mvc:annotation-driven/>

</beans>

4、Controller类

@Controller
@RequestMapping("/account")
public class AccountController {

    /**
     * Spring容器和SpringMVC容器是有层次的(父子容器)
     * Spring容器:service对象+dao对象
     * SpringMVC容器:controller对象,可以引用到Spring容器中的对象。
     */

    @Autowired
    private AccountService accountService;

    @RequestMapping("/queryAll")
    @ResponseBody
    public List<Account> queryAll() throws Exception {
        return accountService.queryAccountList();
    }

}

5、web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext.xml</param-value>
  </context-param>
  <!--spring框架启动-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--springmvc启动-->
  <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*:springmvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

6、测试

插件启动成功后，访问 http://localhost:8888/account/queryAll

前端页面显示出相应的数据，这样一来我们手写并整合ssm成功！！！

四、代码仓库

https://github.com/riemannChow/perseverance/tree/master/handwriting-framework/ssm

我的架构梦：（十）手写并整合ssm框架（Spring+SpringMVC+MyBatis）

手写并整合ssm框架（Spring+SpringMVC+MyBatis）

一、前言

二、MyBatis整合Spring

三、整合SpringMVC

四、代码仓库

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我的架构梦：（十）手写并整合ssm框架（Spring+SpringMVC+MyBatis）

手写并整合ssm框架（Spring+SpringMVC+MyBatis）

一、前言

二、MyBatis整合Spring

三、 整合SpringMVC

四、代码仓库

三、整合SpringMVC