Spring学习笔记（十一）——SSM三大框架的整合

不愿意做鱼的小鲸鱼

发布于 2022-09-24 09:57:48

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发布于 2022-09-24 09:57:48

文章被收录于专栏：web全栈web全栈

搭建整合环境

整合说明：SSM整合可以使用多种方式，选择XML + 注解的方式
整合的思路
1. 先搭建整合的环境
2. 先把Spring的配置搭建完成
3. 再使用Spring整合SpringMVC框架
4. 最后使用Spring整合MyBatis框架
在这里插入图片描述
创建数据库和表结构语句

create database ssm;
use ssm;
create table account(
id int primary key auto_increment,
name varchar(20),
money double
);

创建maven的工程
1. 创建ssm_parent父工程（打包方式选择pom，必须的）
2. 创建ssm_web子模块（打包方式是war包）
3. 创建ssm_service子模块（打包方式是jar包）
4. 创建ssm_dao子模块（打包方式是jar包）
5. 创建ssm_domain子模块（打包方式是jar包）
6. web依赖于service，service依赖于dao，dao依赖于domain
7. 在ssm_parent的pom.xml文件中引入坐标依赖
8. 部署ssm_web的项目，只要把ssm_web项目加入到tomcat服务器中即可

坐标依赖

<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>
    <spring.version>5.0.2.RELEASE</spring.version>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <mysql.version>5.1.6</mysql.version>
    <mybatis.version>3.4.5</mybatis.version>

  </properties>

  <dependencies>
    <!-- spring -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.6.8</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</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-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</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>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!-- log start -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <!-- log end -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <!--8. 部署ssm_web的项目，只要把ssm_web项目加入到tomcat服务器中即可
    5. 编写实体类，在ssm_domain项目中编写-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>ssm</finalName>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.2</version>
          <configuration>
            <source>1.8</source>
            <target>1.8</target>
            <encoding>UTF-8</encoding>
            <showWarnings>true</showWarnings>
          </configuration>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>

编写实体类，在ssm_domain项目中编写

package cn.qkongtao.domain;/*
 *Created by tao on 2019/12/12.
 */

import java.io.Serializable;

public class Account implements Serializable {
    private Integer id;
    private String name;
    private Double money;

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                '}';
    }

    public Integer getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }


}

编写dao接口

package cn.qkongtao.dao;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.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dao接口
* */

@Repository
public interface AccountDao {

    //查询所有账户信息
    public List<Account> findAll();

    //保存账户信息
    public void saveAccount(Account account);
}

编写service接口和实现类

AccountService.java

package cn.qkongtao.service;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.domain.Account;

import java.util.List;

public interface AccountService {
    //查询所有账户信息
    public List<Account> findAll();

    //保存账户信息
    public void saveAccount(Account account);
}

AccountServiceImpl.java

package cn.qkongtao.service.impl;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.dao.AccountDao;
import cn.qkongtao.domain.Account;
import cn.qkongtao.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 saveAccount(Account account) {
        accountDao.saveAccount(account);
        System.out.println("业务层：保存账号...");
    }
}

Spring框架代码的编写

搭建和测试Spring的开发环境

在ssm_web项目中创建applicationContext.xml的配置文件，编写具体的配置信息。

<?xml version="1.0" encoding="UTF-8"?>
<!--搭建和测试Spring的开发环境-->
<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，要扫描的是service和dao层的注解，要忽略web层注解，因为web层让SpringMVC框架去管理 -->
    <context:component-scan base-package="cn.qkongtao">
        <!-- 配置要忽略的注解 -->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
</beans>

在ssm_web项目中编写测试方法，进行测试

package cn.qkongtao.test;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.controller.AccountController;
import cn.qkongtao.service.AccountService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class testSpring {

    @Test
    public void run1(){

        //加载配置文件
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicarionContext.xml");
        //获取对象
        AccountService as = (AccountService)ac.getBean("accountService");
        //调用方法
        as.findAll();
    }
}

Spring整合SpringMVC框架

搭建和测试SpringMVC的开发环境

在web.xml中配置DispatcherServlet前端控制器
在web.xml中配置DispatcherServlet过滤器解决中文乱码

<!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配置文件-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--设置配置文件的根路径-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicarionContext.xml</param-value>
  </context-param>

  <!--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.xml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>
  </servlet>

  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!--解决中乱码的过滤器-->
  <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>

创建springmvc.xml的配置文件，编写配置文件

<?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">
    <!-- 扫描controller的注解，别的不扫描 -->
    <context:component-scan base-package="cn.qkongtao">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 配置视图解析器 -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <!--4. 测试SpringMVC的框架搭建是否成功
    1. 编写index.jsp和list.jsp编写，超链接
    2. 创建AccountController类，编写方法，进行测试
    2. Spring整合SpringMVC的框架
    1. 目的：在controller中能成功的调用service对象中的方法。
    -->
    <!-- JSP文件所在的目录 -->
    <property name="prefix" value="/WEB-INF/pages/" />
    <!-- 文件的后缀名 -->
    <property name="suffix" value=".jsp" />
</bean>
    <!-- 设置静态资源不过滤 -->
    <mvc:resources location="/css/" mapping="/css/**" />
    <mvc:resources location="/images/" mapping="/images/**" />
    <mvc:resources location="/js/" mapping="/js/**" />
    <mvc:resources location="/lib/" mapping="/lib/**"/> <!-- 总导入文件 -->
    <!-- 开启对SpringMVC注解的支持 -->
    <mvc:annotation-driven />
</beans>

测试SpringMVC的框架搭建是否成功
1. 编写index.jsp和list.jsp编写，超链接 <a href="account/findAll" rel="nofollow noopener" rel="nofollow noopener" >查询所有</a>
2. 创建AccountController类，编写方法，进行测试

package cn.qkongtao.controller;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.domain.Account;
import cn.qkongtao.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.util.List;

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

    @Autowired
    private AccountService accountService;

    @RequestMapping("/findAll")
    public String findAll(Model model){
        System.out.println("表现层:查询所有账户...");
        //调用Service的方法
        List<Account> list = accountService.findAll();

        model.addAttribute("list",list);
        return "list";
    }

    /**
     * 保存
     * @param account
     * @return
     */
    @RequestMapping("/save")
    public void save(Account account, HttpServletResponse response, HttpServletRequest request)throws Exception{
        System.out.println(account);
        accountService.saveAccount(account);
        response.sendRedirect(request.getContextPath()+"/account/findAll");
        return;
    }
}

Spring整合SpringMVC的框架

目的：在controller中能成功的调用service对象中的方法。
在项目启动的时候，就去加载applicationContext.xml的配置文件，在web.xml中配置ContextLoaderListener监听器（该监听器只能加载WEB-INF目录下的applicationContext.xml的配置文件）。

 <!--配置Spring的监听器,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>
  <!--设置配置文件的根路径-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicarionContext.xml</param-value>
  </context-param>

在controller中注入service对象，调用service对象的方法进行测试

Spring整合MyBatis框架

1. 搭建和测试MyBatis的环境

在web项目中编写SqlMapConfig.xml的配置文件，编写核心配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!--MyBatis配置文件-->
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!--配置文件-->
    <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://localhost:3306/ssm"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            </dataSource>
        </environment>
    </environments>
    <!-- 使用的是注解 -->
    <mappers>
        <!-- <mapper class="cn.itcast.dao.AccountDao"/> -->
        <!-- 该包下所有的dao接口都可以使用 -->
        <package name="cn.qkongtao.dao"/>
    </mappers>
</configuration>

在AccountDao接口的方法上添加注解，编写SQL语句

package cn.qkongtao.dao;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.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dao接口
* */

@Repository
public interface AccountDao {

    //查询所有账户信息
    @Select("select * from account")
    public List<Account> findAll();

    //保存账户信息
    @Insert("insert into account (name,money)values(#{name},#{money})")
    public void saveAccount(Account account);
}

编写测试的方法

package cn.qkongtao.test;/*
 *Created by tao on 2019/12/12.
 */

import cn.qkongtao.dao.AccountDao;
import cn.qkongtao.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 {
    //测试查询所有
    @Test
    public void run1()throws Exception{
        //加载配置文件
        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);
        //查询所有的账户信息
        List<Account> all = dao.findAll();
        for (Account account : all) {
            System.out.println(account);
        }
        session.close();
        in.close();

    }
    //测试保存
    @Test
    public void run2()throws Exception{
        //加载配置文件
        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);
        Account account = new Account();
        account.setName("娜美");
        account.setMoney(30d);

        //保存
        dao.saveAccount(account);
        //提交事务
        session.commit();

        session.close();
        in.close();

    }
}

2. Spring整合MyBatis框架

目的：把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中 在WEB-INF下的applicationContext.xml配置文件中加入以下配置

<!--Spring整合MyBatis框架-->
    <!--配置连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql:///ssm"></property>
        <property name="user" value="root"></property>
        <property name="password" value="root"></property>
    </bean>
    <!--配置SqlSessionFactory工厂-->
    <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--配置AccountDao所在的接口包-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.qkongtao.dao"/>
    </bean>

    <!--配置Spring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"></property>
    </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.qkongtao.service.impl.*ServiceImpl.*(..))"/>

    </aop:config>

在AccountDao接口中添加@Repository注解
在service中注入dao对象，进行测试 index.jsp

<%--
  Created by IntelliJ IDEA.
  User: tao
  Date: 2019/12/12
  Time: 17:54
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
  <a href="account/findAll" rel="nofollow noopener"  rel="nofollow noopener" >测试</a>

  <h4>测试包</h4>
  <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="保存">
  </form>
</body>
</html>

WEB-INF/pages/list.jsp

<%--
  Created by IntelliJ IDEA.
  User: tao
  Date: 2019/12/12
  Time: 17:58
  To change this template use File | Settings | File Templates.
--%>
<%@ 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>
  <h4>查询所有账户信息</h4>

  <c:forEach items="${list}" var="account">
    <h5>${account.name}--------${account.money}</h5>

  </c:forEach>

</body>
</html>

测试结果如下