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SSM整合案例（超详细）

环境准备
整合步骤

环境准备

前提须知

在SSM整合的时候，我们是用Spring框架去整合SpringMVC框架和MyBatis框架。

在这里插入图片描述

创建数据库和表结构

create database ssm;
create table account(
id int primary key auto_increment,
name varchar(100),
money double(7,2)
);

创建 Maven 工程 ssm

目录结构：

导入坐标并建立依赖

MyBatis 和 Spring 的版本对应关系

pom.xml

<?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.keafmd</groupId>
<artifactId>ssm</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>ssm Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<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>5.2.7.RELEASE</spring.version>
<slf4j.version>1.7.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.49</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.5</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>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<finalName>ssm</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

编写实体类

Account：

package com.keafmd.domain;
import java.io.Serializable;
/** * Keafmd * * @ClassName: Account * @Description: 账户实体类 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:03 */
public class Account implements Serializable { 

private Integer id;
private String name;
private Double 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;
}
@Override
public String toString() { 

return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", money=" + money +
'}';
}
}

编写持久层接口

package com.keafmd.dao;
import com.keafmd.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
import java.util.List;
/** * Keafmd * * @ClassName: AccountDao * @Description: 账户dao接口 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:05 */
public interface AccountDao { 

//查询所有账户
public List<Account> findAll();
//保存账户
public void saveAccount(Account account);
}

编写业务层接口

package com.keafmd.service;
import com.keafmd.domain.Account;
import java.util.List;
/** * Keafmd * * @ClassName: AccountService * @Description: * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:15 */
public interface AccountService { 

//查询所有账户
public List<Account> findAll();
//保存账户
public void saveAccount(Account account);
}

编写业务层实现类

package com.keafmd.service.impl;
import com.keafmd.dao.AccountDao;
import com.keafmd.domain.Account;
import com.keafmd.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/** * Keafmd * * @ClassName: AccountServiceImpl * @Description: 账户的业务层实现类 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:16 */
public class AccountServiceImpl implements AccountService { 

@Override
public List<Account> findAll() { 

System.out.println("业务层，查询所有。。。");
return null;
}
@Override
public void saveAccount(Account account) { 

System.out.println("业务层，保存账户。。。");
}
}

编写 Controller

package com.keafmd.controller;
/** * Keafmd * * @ClassName: AccountController * @Description: 账户控制器 web * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:19 */
public class AccountController { 

}

整合步骤

保证 Spring 框架在 web 工程中独立运行

第一步：编写 spring 配置文件并导入约束

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" 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="com.keafmd">
<!-- 配置要忽略的注解 -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
</beans>

第二步：使用注解配置业务层

AccountServiceImpl：

package com.keafmd.service.impl;
import com.keafmd.dao.AccountDao;
import com.keafmd.domain.Account;
import com.keafmd.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/** * Keafmd * * @ClassName: AccountServiceImpl * @Description: 账户的业务层实现类 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:16 */
@Service("accountService")
public class AccountServiceImpl implements AccountService { 

@Override
public List<Account> findAll() { 

System.out.println("业务层，查询所有。。。");
return null;
}
@Override
public void saveAccount(Account account) { 

System.out.println("业务层，保存账户。。。");
}
}

第三步：导入log4j.properties配置文件

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=info, CONSOLE, LOGFILE
# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

第四步：测试 spring 能否独立运行

测试代码：

package com.keafmd.test;
import com.keafmd.service.AccountService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/** * Keafmd * * @ClassName: TestSpring * @Description: 测试类 * @author: 牛哄哄的柯南 * @date: 2021-02-17 22:37 */
public class TestSpring { 

@Test
public void run1(){ 

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

运行结果：

业务层，查询所有。。。
Process finished with exit code 0

保证 SpringMVC 在 web 工程中独立运行

第一步：在 web.xml 中配置核心控制器（DispatcherServlet）

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：服务器启动必须加载，需要加载springmvc.xml配置文件 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置初始化参数，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>

第二步：编写 SpringMVC 的配置文件

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，扫描controller的注解，别的不扫描 -->
<context:component-scan base-package="com.keafmd">
<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">
<!-- 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>
<!-- 过滤静态资源，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/**"/>
<!-- 开启对SpringMVC注解的支持 -->
<mvc:annotation-driven/>
</beans>

第三步：编写 Controller 和 jsp 页面

index.jsp：

<%--
Created by IntelliJ IDEA.
User: Keafmd
Date: 2021/2/17
Time: 23:20
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">测试查询</a>
</body>
</html>

AccountController：

package com.keafmd.controller;
import com.keafmd.domain.Account;
import com.keafmd.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;
/** * Keafmd * * @ClassName: AccountController * @Description: 账户控制器 web * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:19 */
@Controller
@RequestMapping("/account")
public class AccountController { 

/** * 查询所有 * @param * @return */
@RequestMapping("/findAll")
public String findAll(){ 

System.out.println("表现层，查询所有账户信息。。。");
return "list";
}
}

list.jsp：

<%--
Created by IntelliJ IDEA.
User: Keafmd
Date: 2021/2/18
Time: 15:50
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>
<h1>查询所有的账户</h1>
</body>
</html>

第四步：部署tomcat服务器

启动服务器，进行测试

控制台输出：

表现层，查询所有账户信息。。。

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。

第一步：配置监听器实现启动服务创建容器

在web.xml添加监听器：

<!-- 配置 spring 提供的监听器，用于启动服务时加载容器 。 该监听器只能加载 WEB-INF 目录中名称为 applicationContext.xml 的配置文件 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 手动指定 spring 配置文件位置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>

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 提供的监听器，用于启动服务时加载容器 。 该监听器只能加载 WEB-INF 目录中名称为 applicationContext.xml 的配置文件 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 手动指定 spring 配置文件位置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- 配置前端控制器：服务器启动必须加载，需要加载springmvc.xml配置文件 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置初始化参数，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>

第二步：在controller中注入service对象，调用service对象的方法进行测试

package com.keafmd.controller;
import com.keafmd.domain.Account;
import com.keafmd.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;
/** * Keafmd * * @ClassName: AccountController * @Description: 账户控制器 web * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:19 */
@Controller
@RequestMapping("/account")
public class AccountController { 

@Autowired
private AccountService accountService;
/** * 查询所有 * @return */
@RequestMapping("/findAll")
public String findAll(){ 

System.out.println("表现层，查询所有账户信息。。。");
//调用service的方法
accountService.findAll();
return "list";
}
}

运行结果：
控制台输出：

表现层，查询所有账户信息。。。
业务层，查询所有。。。

保证 MyBatis 框架在 web 工程中独立运行

第一步：在web项目中编写SqlMapConfig.xml的配置文件，编写核心配置文件

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>
<!-- 配置连接数据库的信息 -->
<properties resource="jdbcConfig.properties"></properties>
<!-- 配置mybatis的环境 -->
<environments default="mysql">
<environment id="mysql">
<!-- 配置事务管理 -->
<transactionManager type="JDBC"></transactionManager>
<dataSource type="pooled">
<property name="driver" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
<!-- 指定映射文件位置 -->
<mappers>
<!--<mapper class="com.keafmd.dao.IAccountDao"/> <mapper class="com.keafmd.dao.IUserDao"/>-->
<package name="com.keafmd.dao"/>
</mappers>
</configuration>

jdbcConfig.properties：

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

第二步：在AccountDao接口的方法上添加注解，编写SQL语句

package com.keafmd.dao;
import com.keafmd.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
import java.util.List;
/** * Keafmd * * @ClassName: AccountDao * @Description: 账户dao接口 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:05 */
public interface AccountDao { 

//查询所有账户
@Select("select * from account")
public List<Account> findAll();
//保存账户
@Insert("insert into account(name,money) values(#{name},#{money})")
public void saveAccount(Account account);
}

第三步：编写测试的方法

TestMybatis：

package com.keafmd.test;
import com.keafmd.dao.AccountDao;
import com.keafmd.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.After;
import org.junit.Before;
import org.junit.Test;
import java.io.InputStream;
import java.util.List;
/** * Keafmd * * @ClassName: TestMybatis * @Description: 测试Mybatis * @author: 牛哄哄的柯南 * @date: 2021-02-18 16:37 */
public class TestMybatis { 

private InputStream in;
private SqlSessionFactory factory;
private SqlSession session;
private AccountDao accountDao;
@Before
public void init() throws Exception{ 

//加载配置文件
in = Resources.getResourceAsStream("SqlMapConfig.xml");
//创建SqlSessionFactory对象
factory = new SqlSessionFactoryBuilder().build(in);
//创建SqlSession对象
session = factory.openSession();
//获取到代理对象
accountDao = session.getMapper(AccountDao.class);
}
@After
public void destory() throws Exception{ 

session.commit();
session.close();
in.close();
}
/** * 查询所有 */
@Test
public void run1(){ 

List<Account> accounts = accountDao.findAll();
for (Account account : accounts) { 

System.out.println(account);
}
}
/** * 测试保存 */
@Test
public void saveAccount(){ 

Account account = new Account();
account.setName("毛利小五郎");
account.setMoney(800.00);
// account.setMoney(800d);
accountDao.saveAccount(account);
}
}

运行run1()：

Account{ 
id=1, name='keafmd', money=9000.0}
Account{ 
id=2, name='小兰', money=8000.0}
Account{ 
id=3, name='新一', money=8000.0}
Account{ 
id=4, name='毛利小五郎', money=800.0}
Account{ 
id=5, name='怪盗基德', money=660.0}
Account{ 
id=6, name='某某', money=290.0}
Process finished with exit code 0

Spring 整合 MyBatis 框架

整合思路：把 mybatis 配置文件（SqlMapConfig.xml）中内容配置到 spring 配置文件中同时，把 mybatis 配置文件的内容清掉。

第一步：把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中

把以下内容添加到applicationContext.xml配置文件中：

<!--Spring整合Mybatisl框架-->
<!-- 配置C3P0的连接池对象 -->
<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SqlSession的工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置扫描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.keafmd.dao"/>
</bean>
<!--SqlMapConfig.xml和jdbcConfig.properties可以删除了-->

SqlMapConfig.xml和jdbcConfig.properties可以删除了。

第二步：在applicationContext.xml配置文件中配置 spring 的事务

把以下内容添加到applicationContext.xml配置文件中：

<!--配置Spring框架声明式事务管理-->
<!--配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置事务的通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="find*" propagation="SUPPORTS" 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(* com.keafmd.service.impl.*.*(..))"/>-->
<!-- 配置切入点表达式 -->
<aop:pointcut expression="execution(* com.keafmd.service.impl.*.*(..))" id="pt1"/>
<!-- 建立通知和切入点表达式的关系 -->
<aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
</aop:config>

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" 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="com.keafmd">
<!-- 配置要忽略的注解 -->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--Spring整合Mybatisl框架-->
<!-- 配置C3P0的连接池对象 -->
<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="18044229"/>
</bean>
<!-- 配置SqlSession的工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置扫描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.keafmd.dao"/>
</bean>
<!--SqlMapConfig.xml和jdbcConfig.properties可以删除了-->
<!--配置Spring框架声明式事务管理-->
<!--配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置事务的通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="find*" propagation="SUPPORTS" 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(* com.keafmd.service.impl.*.*(..))"/>-->
<!-- 配置切入点表达式 -->
<aop:pointcut expression="execution(* com.keafmd.service.impl.*.*(..))" id="pt1"/>
<!-- 建立通知和切入点表达式的关系 -->
<aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
</aop:config>
</beans>

第三步：在AccountDao接口中添加@Repository注解

AccountDao：

package com.keafmd.dao;
import com.keafmd.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
import java.util.List;
/** * Keafmd * * @ClassName: AccountDao * @Description: 账户dao接口 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:05 */
@Repository
public interface AccountDao { 

//查询所有账户
@Select("select * from account")
public List<Account> findAll();
//保存账户
@Insert("insert into account(name,money) values(#{name},#{money})")
public void saveAccount(Account account);
}

第四步：在service中注入dao对象

AccountServiceImpl：

package com.keafmd.service.impl;
import com.keafmd.dao.AccountDao;
import com.keafmd.domain.Account;
import com.keafmd.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/** * Keafmd * * @ClassName: AccountServiceImpl * @Description: 账户的业务层实现类 * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:16 */
@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。。。");
return accountDao.findAll();
}
@Override
public void saveAccount(Account account) { 

System.out.println("业务层，保存账户。。。");
accountDao.saveAccount(account);
}
}

第五步：修改 AccountController 代码

package com.keafmd.controller;
import com.keafmd.domain.Account;
import com.keafmd.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;
/** * Keafmd * * @ClassName: AccountController * @Description: 账户控制器 web * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:19 */
@Controller
@RequestMapping("/account")
public class AccountController { 

@Autowired
private AccountService accountService;
/** * 查询所有 * @param model * @return */
@RequestMapping("/findAll")
public String findAll(Model model){ 

System.out.println("表现层，查询所有账户信息。。。");
//调用service的方法
List<Account> list = accountService.findAll();
model.addAttribute("list",list);
return "list";
}
/** * 保存 * @param account * @param request * @param response * @throws IOException */
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException { 

accountService.saveAccount(account);
response.sendRedirect(request.getContextPath()+"/account/findAll");
return;
}
}

第五步：修改 list.jsp 代码，实现显示账户信息

<%--
Created by IntelliJ IDEA.
User: Keafmd
Date: 2021/2/18
Time: 15:50
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>
<h1>查询所有的账户</h1>
<%--${ 
list}--%>
<c:forEach items="${list}" var="account">
${ 
account.name}
${ 
account.money}
</c:forEach>
</body>
</html>

第六步：测试查询

第七步：测试保存

修改index.jsp代码，添加测试保存的代码：

<%--
Created by IntelliJ IDEA.
User: Keafmd
Date: 2021/2/17
Time: 23:20
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">测试查询</a>
<h1>测试保存</h1>
<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>

修改 AccountController 代码，添加save方法：

package com.keafmd.controller;
import com.keafmd.domain.Account;
import com.keafmd.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;
/** * Keafmd * * @ClassName: AccountController * @Description: 账户控制器 web * @author: 牛哄哄的柯南 * @date: 2021-02-17 21:19 */
@Controller
@RequestMapping("/account")
public class AccountController { 

@Autowired
private AccountService accountService;
/** * 查询所有 * @param model * @return */
@RequestMapping("/findAll")
public String findAll(Model model){ 

System.out.println("表现层，查询所有账户信息。。。");
//调用service的方法
List<Account> list = accountService.findAll();
model.addAttribute("list",list);
return "list";
}
/** * 保存 * @param account * @param request * @param response * @throws IOException */
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException { 

accountService.saveAccount(account);
response.sendRedirect(request.getContextPath()+"/account/findAll");
return;
}
}

测试结果：

以上就是SSM整合案例（超详细）的全部内容。

看完如果对你有帮助，感谢点赞支持！
如果你是电脑端的话，看到右下角的 “一键三连” 了吗，没错点它[哈哈]

加油！

共同努力！

Keafmd

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