SSM框架整合(Spring + SpringMVC + MyBatis)
搭建环境
使用
Spring
(业务层)整合其他的框架SpringMVC
(表现层)和MyBatis
(持久层)
Spring
框架
创建数据库表
CREATE DATABASE ssm;
USE ssm;
CREATE TABLE account(
id INT PRIMARY KEY AUTO_INCREMENT,
NAME VARCHAR(20),
money DOUBLE
);
pom
文件导入坐标<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> <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>
实体类
Account
public class Account implements Serializable { private Integer id;
private String name;
private Double money;
}
AccountDao
接口(Spring框架)public interface AccountDao { //查询所有账户
public List<Account> findAll(); //保存账户信息
public void saveAccount(Account account);
}
AccountService
接口public interface AccountService { //查询所有账户
public List<Account> findAll(); //保存账户信息
public void saveAccount(Account account);
}
AccountServiceImpl
实现类@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 saveAccount(Account account) {
System.out.println("业务层,保存账户信息");
}
}
表现层
AccountController
@Controller
@RequestMapping(value = "/account")
public class AccountController {
}
配置文件
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,希望处理service和dao,controller不需要spring框架去处理,它会有自己的方法-->
<context:component-scan base-package="com.atgw">
<!--配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan> </beans>
SpringMVC
框架搭建
web.xml
1. <web-app>
<display-name>Archetype Created Web Application</display-name>
<!--配置前端服务器-->
<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="com.atgw">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan> <!--配置的视图解析器对象-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean> <!--过滤静态资源-->
<mvc:resources mapping="/css/**" location="/css/"/>
<mvc:resources mapping="/images/**" location="/images/"/>
<mvc:resources mapping="/js/**" location="/js/"/> <!--开启SpringMVC注解的支持-->
<mvc:annotation-driven/>
</beans>
AccountController
<?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="com.atgw">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan> <!--配置的视图解析器对象-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean> <!--过滤静态资源-->
<mvc:resources mapping="/css/**" location="/css/"/>
<mvc:resources mapping="/images/**" location="/images/"/>
<mvc:resources mapping="/js/**" location="/js/"/> <!--开启SpringMVC注解的支持-->
<mvc:annotation-driven/>
</beans>
index.jsp
<a href="account/findAll">测试</a>
list.jsp
<h3>查询所有账户</h3>
Spring
整合SpringMVC
框架
1web.xml
<!--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.ContextLoader</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>
2AccountController
)(方法中自动注入service)
@Controller
@RequestMapping(value = "/account")
public class AccountController {
//自动注入
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(){
System.out.println("表现层:查询所有账户");
//调用Service的方法
accountService.findAll();
return "list";
}
}
Spring
整合MyBatis
框架
web.xml
配置Sping
监听器,在服务器启动时加载applicationContext.xml
配置文件<!--配置Spring的监听器,默认只加载WEB-INF目录下的application.xml配置文件-->
<listener>
<listener-class>org.springframework.web.context.ContextLoader</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>
SqlMapConfig.xml
配置数据库环境,引入映射类的地址<?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"></transactionManager>
<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="000519"/>
</dataSource>
</environment>
</environments> <!--引入映射配置文件-->
<mappers>
<!--<mapper class="com.atgw.dao.AccountDao"/>-->
<package name="com.atgw.dao"/>
</mappers>
</configuration>
AccountDao
接口,添加注释,写SQL
语句public interface AccountDao { //查询所有账户
@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);
}
测试
//查询所有数据
@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);
}
//关闭资源
session.close();
in.close();
} //保存数据
@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();
//获取代理对象
AccountDao dao = session.getMapper(AccountDao.class);
Account account = new Account();
account.setName("司司");
account.setMoney(199.0);
dao.saveAccount(account); //提交事务(默认是手动提交事务的)
session.commit(); //关闭资源
session.close();
in.close();
}
希望把
dao
对象代理到IOC
容器中SQLSessionFactory
工厂可以创建SQLSession
,然后创建dao
代理对象,代理到IOC
容器中<!--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 name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm"/>
<property name="user" value="root"/>
<property name="password" value="000519"/>
</bean> <!--配置SQLSessionFactory工厂-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean> <!--配置AccountDao接口所在的包-->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.atgw.dao"/>
</bean>
AccountDao
接口中添加@Repository
注解@Repository//交给IOC容器
public interface AccountDao {
}
AccountController
中的方法中对遍历到数据的进行页面遍历@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";
}
list.jsp
页面(遍历数据)<%@ 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>查询所有账户</h3>
<c:forEach items="${list}" var="account">
${account.name}<br/>
</c:forEach>
</body>
</html>
配置事务
applicationContext.xml
<!--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(* com.atgw.service.impl.*ServiceImpl.*(..))"/>
</aop:config>
AccountController
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
accountService.saveAccount(account);
//重定向
response.sendRedirect(request.getContextPath()+"/account/findAll");
return;
}
index.jsp
<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"/><br/>
</form>
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