SpringMVC03:SSM整合

一、搭建整合环境

1、ssm整合说明

2、搭建环境

二、Spring框架代码的编写

1、编写Spring框架（处理业务层）

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>

    <!-- 开启注解扫描，希望处理service和dao，controller不需要spring框架去处理 -->

    <context:component-scan base-package="cn.itcast">

        <!--可以配置哪些注解不扫描-->

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>

</beans>

TestSpring.java

package cn.itcast.test;

import cn.itcast.service.AccountService;

import org.junit.Test;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class TestSpring {

    @Test

    public void run1(){

        //加载Spring的配置文件

        ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:ApplicationContext.xml");

        //获取对象

        AccountService as = (AccountService) ac.getBean("accountService");

        //调用方法

        as.findAll();

    }

}

AccountServiceImpl.java

package cn.itcast.service.impl;

import cn.itcast.domain.Account;

import cn.itcast.service.AccountService;

import org.springframework.stereotype.Service;

import java.util.List;

@Service("accountService")

public class AccountServiceImpl implements AccountService {

    @Override

    public List<Account> findAll() {

        System.out.println("业务层：查询所有账户……");

        return null;

    }

    @Override

    public void savAccount(Account account) {

        System.out.println("业务层：保存账户……");

    }

}

三、Spring整合SpringMVC框架

1、编写SpringMVC框架

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>

  <!--配置前端控制器-->

  <servlet>

    <servlet-name>dispatcherServlet</servlet-name>

    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <!--1.希望加载springmvc.xml配置文件-->

    <init-param>

      <param-name>contextConfigLocation</param-name>

      <param-value>classpath:springmvc.xml</param-value>

    </init-param>

    <!--2.启动服务器，创建该Servlet-->

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

    <servlet-name>dispatcherServlet</servlet-name>

    <url-pattern>/</url-pattern>

  </servlet-mapping>

  <!--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>

</web-app>

springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

       xmlns:mvc="http://www.springframework.org/schema/mvc"

       xmlns:context="http://www.springframework.org/schema/context"

       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/mvc

       http://www.springframework.org/schema/mvc/spring-mvc.xsd

       http://www.springframework.org/schema/context

       http://www.springframework.org/schema/context/spring-context.xsd">

    <!--开启注解扫描，只扫描Controller注解-->

    <context:component-scan base-package="cn.itcast">

        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>

    <!--配置视图解析器，往哪跳转-->

    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/pages/"></property>

        <property name="suffix" value=".jsp"></property>

    </bean>

    <!--过滤静态资源-->

    <mvc:resources mapping="/js/**" location="/js/"></mvc:resources>

    <!--开启SpringMVC注解的支持-->

    <mvc:annotation-driven/>

</beans>

AccountController.java

package cn.itcast.controller;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

/**

 * 账户web控制器

 */

@Controller

@RequestMapping("/account")

public class AccountController {

    @RequestMapping("/findAll")

    public String findAll(){

        System.out.println("表现层：查询所有的账户信息");

        return "list";

    }

}

2、Spring整合SpringMVC的框架

AccountController.java

package cn.itcast.controller;

import cn.itcast.service.AccountService;

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

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

/**

 * 账户web控制器

 */

@Controller

@RequestMapping("/account")

public class AccountController {

    //放入容器

    @Autowired

    private AccountService accountService;

    @RequestMapping("/findAll")

    public String findAll(){

        System.out.println("表现层：查询所有的账户信息");

        //整合：成功调用业务层方法（依赖注入）

        accountService.findAll();

        return "list";

    }

}

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>

  <!--配置Spring的监听器，默认只加载WEB-INF目录下的applicationContext.xml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>

 </web-app>

四、Spring整合MyBatis框架

1、编写MyBatis框架

SqlMapConfig.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>

    <!--配置环境-->

    <environments default="mysql">

        <environment id="mysql">

            <transactionManager type="JDBC"/>

            <dataSource type="POOLED">

                <property name="driver" value="com.mysql.jdbc.Driver"/>

                <property name="url" value="jdbc:mysql:///ssm"/>

                <property name="username" value="root"/>

                <property name="password" value="root"/>

            </dataSource>

        </environment>

    </environments>

    <!--引入映射配置文件-->

    <mappers>

        <!--<mapper resource="cn/itcast/dao/xxx.xml"></mapper>-->

        <!--<mapper class="cn/itcast/dao/AccountDao" />-->

        <package name="cn.itcast.dao"/>

    </mappers>

</configuration>

AccountDao.java

package cn.itcast.dao;

import cn.itcast.domain.Account;

import org.apache.ibatis.annotations.Insert;

import org.apache.ibatis.annotations.Select;

import java.util.List;

/**

 * 账户接口

 * 使用代理可以只写接口不写实现类

 */

public interface AccountDao {

    /**

     * 查询所有

     * @return

     */

    @Select("select * from account")

    public List<Account> findAll();

    /**

     * 保存账户信息

     * @param account

     */

    @Insert("insert into account (name,money) values (#{name},#{money})")

    public void savAccount(Account account);

}

TestMybatis.java

package cn.itcast.test;

import cn.itcast.dao.AccountDao;

import cn.itcast.domain.Account;

import org.apache.ibatis.io.Resources;

import org.apache.ibatis.session.SqlSession;

import org.apache.ibatis.session.SqlSessionFactory;

import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import org.junit.Test;

import java.io.InputStream;

import java.util.List;

public class TestMybatis {

    @Test

    public void run1() throws Exception{

        //加载Mybatis配置文件

        InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");

        //创建SqlSessionFactory对象

        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);

        //创建SqlSession对象

        SqlSession session = factory.openSession();

        //获取到代理对象

        AccountDao dao = session.getMapper(AccountDao.class);

        //查询所有数据

        List<Account> list = dao.findAll();

        for (Account account : list) {

            System.out.println(account);

        }

        //释放资源

        session.close();

        in.close();

    }

}

2、编写MyBatis框架测试保存的方法

TestMybatis.java

 /**

     * 测试保存

     * @throws Exception

     */

    @Test

    public void run2() throws Exception{

        Account account = new Account();

        account.setName("王五");

        account.setMoney(3d);

        //加载Mybatis配置文件

        InputStream in = Resources.getResourceAsStream("SqlMapConfig.xml");

        //创建SqlSessionFactory对象

        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);

        //创建SqlSession对象

        SqlSession session = factory.openSession();

        //获取到代理对象

        AccountDao dao = session.getMapper(AccountDao.class);

        //保存

        dao.savAccount(account);

        //增删改需要考虑事务，提交事务

        session.commit();

        //释放资源

        session.close();

        in.close();

    }

3、Spring整合MyBatis框架

applicat

<?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: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/tx

       http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 开启注解扫描，希望处理service和dao，controller不需要spring框架去处理 -->

    <context:component-scan base-package="cn.itcast">

        <!--可以配置哪些注解不扫描-->

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>

    <!--Spring整合Mybatis框架-->

    <!--配置c3p0连接池-->

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

        <property name="driverClass" value="com.mysql.jdbc.Driver"/>

        <property name="jdbcUrl" value="jdbc:mysql:///ssm"/>

        <property name="user" value="root"/>

        <property name="password" value="root"/>

    </bean>

    <!--配置SqlSessionFactory工厂对象-->

    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

    </bean>

    <!--配置AccountDao接口所在的包-->

    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="cn.itcast.dao" />

    </bean>

</beans>

package cn.itcast.dao;

import cn.itcast.domain.Account;

import org.apache.ibatis.annotations.Insert;

import org.apache.ibatis.annotations.Select;

import org.springframework.stereotype.Repository;

import java.util.List;

/**

 * 账户接口

 * 使用代理可以只写接口不写实现类

 */

@Repository

public interface AccountDao {

    /**

     * 查询所有

     * @return

     */

    @Select("select * from account")

    public List<Account> findAll();

    /**

     * 保存账户信息

     * @param account

     */

    @Insert("insert into account (name,money) values (#{name},#{money})")

    public void savAccount(Account account);

}

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<html>

<head>

    <title>Title</title>

</head>

<body>

    <h3>查询了所有账户信息</h3>

    ${list}

    <h3>jstl遍历</h3>

    <c:forEach items="${list}" var="account">

        ${account.name} <br>

    </c:forEach>

</body>

</html>

package cn.itcast.controller;

import cn.itcast.domain.Account;

import cn.itcast.service.AccountService;

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

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;

/**

 * 账户web控制器

 */

@Controller

@RequestMapping("/account")

public class AccountController {

    //放入容器

    @Autowired

    private AccountService accountService;

    @RequestMapping("/findAll")

    public String findAll(Model model){

        System.out.println("表现层：查询所有的账户信息");

        //整合：成功调用业务层方法（依赖注入）

        List<Account> list = accountService.findAll();

        model.addAttribute("list",list);

        return "list";

    }

}

package cn.itcast.service.impl;

import cn.itcast.dao.AccountDao;

import cn.itcast.domain.Account;

import cn.itcast.service.AccountService;

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

import org.springframework.stereotype.Service;

import java.util.List;

@Service("accountService")

public class AccountServiceImpl implements AccountService {

    @Autowired

    private AccountDao accountDao;

    @Override

    public List<Account> findAll() {

        System.out.println("业务层：查询所有账户……");

        return accountDao.findAll();

    }

    @Override

    public void savAccount(Account account) {

        System.out.println("业务层：保存账户……");

        accountDao.savAccount(account);

    }

}

controller调用service，service调dao，通过controller从页面的ModelAndView进行返回

4、Spring整合MyBatis框架配置事务

<?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: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/tx

       http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 开启注解扫描，希望处理service和dao，controller不需要spring框架去处理 -->

    <context:component-scan base-package="cn.itcast">

        <!--可以配置哪些注解不扫描-->

        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>

    </context:component-scan>

    <!--Spring整合Mybatis框架-->

    <!--配置c3p0连接池-->

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

        <property name="driverClass" value="com.mysql.jdbc.Driver"/>

        <property name="jdbcUrl" value="jdbc:mysql:///ssm"/>

        <property name="user" value="root"/>

        <property name="password" value="root"/>

    </bean>

    <!--配置SqlSessionFactory工厂对象-->

    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

    </bean>

    <!--配置AccountDao接口所在的包-->

    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="cn.itcast.dao" />

    </bean>

    <!--配置Spring框架的声明式事务管理-->

    <!--配置事务管理器-->

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource"/>

    </bean>

    <!--配置事务通知-->

    <tx:advice id="txAdvice" transaction-manager="transactionManager">

        <tx:attributes>

            <tx:method name="find" read-only="true"/>

            <tx:method name="*" isolation="DEFAULT"/>

        </tx:attributes>

    </tx:advice>

    <!--配置AOP增强-->

    <aop:config>

        <aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.itcast.service.impl.*ServiceImpl.*(..))"></aop:advisor>

    </aop:config>

</beans>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>Title</title>

</head>

<body>

<a href="account/findAll">测试</a>

<h3>测试保存</h3>

<form action="account/save" method="post">

    姓名：<input type="text" name="name"><br>

    金额：<input type="text" name="money"><br>

    <input type="submit" value="get now!"><br>

</form>

</body>

</html>

package cn.itcast.controller;

import cn.itcast.domain.Account;

import cn.itcast.service.AccountService;

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

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

import java.util.List;

/**

 * 账户web控制器

 */

@Controller

@RequestMapping("/account")

public class AccountController {

    //放入容器

    @Autowired

    private AccountService accountService;

    @RequestMapping("/save")

    public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {

        accountService.savAccount(account);

        response.sendRedirect(request.getContextPath()+"/account/findAll");

        return;

    }

}

来自为知笔记(Wiz)

巴特西

SpringMVC03:SSM整合

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