SSM整合（XML+注解方式）
SSM整合
文章目录
- SSM整合
- 环境搭建
- 1.创建数据库
- 2.创建maven项目导入坐标
- 3.编写实体类
- 4.编写持久层接口
- 5.编写业务层接口
- 6.编写业务层实现类
- 配置Spring
- 1.编写spring配置文件并导入约束
- 2.使用注解配置业务层和持久层
- 3.测试spring是否能独立运行
- 配置SpringMVC
- 1.在web.xml里配置前端控制器（DispatchServlet）
- 2.编写SpringMVC配置文件
- 3.编写Controller和jsp页面
- 整合Spring和SpringMVC
- 1.配置监听器实现启动服务时创建容器（加载spring配置文件）即可
- 2.测试
- 配置Mybatis
- 1. 在web项目中编写SqlMapConfig.xml的配置文件，编写核心配置文件
- 2.在AccountDao接口的方法上添加注解，编写SQL语句
- 3.测试
- 整合Spring和Mybatis
环境搭建
1.创建数据库
ssm数据库-account表
create database ssm;
create table account(
id int primary key auto_increment,
name varchar(100),
money double(7,2)
);
2.创建maven项目导入坐标
<?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.yll</groupId>
<artifactId>mySSM</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>mySSM 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>1.7</maven.compiler.source>
<maven.compiler.target>1.7</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>
<shiro.version>1.2.3</shiro.version>
<mysql.version>8.0.16</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-context-support</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-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</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-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${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>
<build>
<finalName>mySSM</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>
3.编写实体类
com.yll.domain.Account
package com.yll.domain;
import java.io.Serializable;
/**
* 账户
* */
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 +
'}';
}
}
4.编写持久层接口
dao层
com.yll.dao.IAccountDao
/**
* 账户dao的接口
* */
@Repository
public interface IAccountDao {
//查询所有账户信息
public List<Account> findAll();
//保存账户
public void saveAccount(Account account);
}
5.编写业务层接口
com.yll.service.AccountService
/**
* account业务层
* */
public interface AccountService {
//查询所有账户信息
public List<Account> findAll();
//保存账户
public void saveAccount(Account account);
}
6.编写业务层实现类
com.yll.service.impl.AccountService
public class AccountServiceImpl implements AccountService {
private IAccountDao accountDao;
@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");
}
}
配置Spring
1.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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!--开启注解扫描，只希望处理service 和dao，controller不需要处理-->
<context:component-scan base-package="com.yll">
<!--配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
</beans>
2.使用注解配置业务层和持久层
业务层实现类
@Service("accountService")
public class AccountServiceImpl implements AccountService {
@Autowired
private IAccountDao 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，保存账户");
}
}
持久层
/**
* 账户dao的接口
* */
@Repository
public interface IAccountDao {
//查询所有账户信息
@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);
}
3.测试spring是否能独立运行
public class testSpring {
@Test
public void testspring1(){
//1.加载配置文件
ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
//2.获取对象
AccountService as = (AccountService) ac.getBean("accountService");
//3.
as.findAll();
}
}
配置SpringMVC
1.在web.xml里配置前端控制器（DispatchServlet）
<!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>
<!--加载springmvc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>/*
2.编写SpringMVC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,只扫描Controller-->
<context:component-scan base-package="com.yll">
<!--配置哪些注解扫描-->
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--配置视图解析器对象-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!--过滤静态资源-->
<mvc:resources mapping="/css/" location="/css/**"></mvc:resources>
<mvc:resources mapping="/images/" location="/images/**"></mvc:resources>
<mvc:resources mapping="/js/" location="/js/**"></mvc:resources>
<!--开启SpringMVC注解的支持-->
<mvc:annotation-driven/>
</beans>
3.编写Controller和jsp页面
index.jsp
//index.jsp
<a href="account/testfindAll">测试SpringMVC</a>
AccountController
/**
* web层
* */
@Controller
@RequestMapping("/account")
public class AccountController {
@RequestMapping("/testfindAll")
public String findAll(Model model){
System.out.println("表现层…findALL…");
return "list";
}
}
整合Spring和SpringMVC
1.配置监听器实现启动服务时创建容器（加载spring配置文件）即可
在web.xml里面配置
<!--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>
<!--设置配置文件的路径-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
2.测试
- 在controller中注入service对象，调用service对象的方法进行测试
/**
* web层
* */
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService accountService;
@RequestMapping("/testfindAll")
public String findAll(Model model){
System.out.println("表现层…findALL…");
//调用业务层方法
accountService.findAll();
return "list";
}
}
配置Mybatis
1. 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"?>
<!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?useUnicode=true&characterEncoding=utf8"/>
<property name="username" value="root"/>
<property name="password" value="52151"/>
</dataSource>
</environment>
</environments>
<!--引入映射配置文件-->
<mappers>
<!-- <mapper class="com.yll.dao.IAccountDao"></mapper>-->
<package name="com.yll.dao"/>
</mappers>
</configuration>
2.在AccountDao接口的方法上添加注解，编写SQL语句
/**
* 账户dao的接口
* */
public interface IAccountDao {
//查询所有账户信息
@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);
}
3.测试
/**
* 测试查询
* */
@Test
public void test1() throws IOException {
//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
IAccountDao dao = session.getMapper(IAccountDao.class);
//查询
List<Account> accounts = dao.findAll();
for(Account account:accounts){
System.out.println(account);
}
//释放资源
session.close();
in.close();
}
/**
* 测试保存
* */
@Test
public void test2() throws IOException {
//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
IAccountDao dao = session.getMapper(IAccountDao.class);
//查询
Account account = new Account();
account.setName("yll");
account.setMoney(52151);
dao.saveAccount(account);
//提交事务
session.commit();
//释放资源
session.close();
in.close();
}
整合Spring和Mybatis
- 目的：把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中
<!--Spring整合Mybatis框架-->
<!--配置c3p0-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.cj.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf-8&serverTimezone=UTC"/>
<property name="user" value="root"/>
<property name="password" value="52151"/>
</bean>
<!--配置SqlSessionFactory工厂-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--配置Dao接口所在的包 (创建代理对象)-->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.yll.dao"></property>
</bean>
- 在AccountDao接口中添加@Repository注解
@Repository
public interface IAccountDao {
.......
}
- 在service中注入dao对象，进行测试
@Service("accountService")
public class AccountServiceImpl implements AccountService {
@Autowired
private IAccountDao accountDao;
.......
- 在Controller访问其他层进行测试
@Autowired
private AccountService accountService;
@RequestMapping("/testfindAll")
public String findAll(Model model){
System.out.println("表现层…findALL…");
//调用业务层方法
List<Account> accounts = accountService.findAll();
for (Account account:accounts){
System.out.println(account);
}
model.addAttribute("lists",accounts);
return "list";
}
- 配置Spring的声明式事务管理
- 在
applicationContext.xml中配置
<!--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"/>
</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.yll.service.impl.*ServiceImpl.*(..))"/>
</aop:config>
- jsp代码
<h3>测试保存</h3>
<form method="post" action="account/saveAccount">
姓名：<input type="text" name="name"/><br>
金额：<input type="text" name="money"/><br>
<input type="submit" value="提交">
</form>
- 利用Controller测试能不能走通
@RequestMapping("/saveAccount")
public void saveAccount(Account account, HttpServletResponse response, HttpServletRequest request) throws IOException {
accountService.saveAccount(account);
response.sendRedirect(request.getContextPath()+"/account/testfindAll");
return ;
}