文章目录
SSM框架整合(使用IDEA)
一、搭建整合环境
1、整合说明
这里采用XML + 注解的方式的方式实现SSM的整合
2、整合思路
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
3、创建数据库和表的结构
create database ssm;
use ssm;
create table account
(id int primary key auto_increment,
name varchar(20),
money double );
4、创建maven工程
<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> <!--锁定版本 -->
<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>
5、编写实体类Account.java
com.huagege.domian.Account.java
设置相应的get、set方法以及toString方法
package com.huagege.domian;
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;
}
}
6、编写dao接口
com.huagege.dao.AccountDao.java
包含查询所有方法和保存账户信息方法
package com.huagege.dao;
import com.huagege.domian.Account;
import java.util.List;
/**
* 账户接口
*/
public interface AccountDao{
/**
* 查询所有
* @return
*/
public List<Account> findAll();
/**
* 保存账户信息
* @param account
*/
public void saveAccount(Account account);
}
7、编写service接口和实现类
service接口:com.huagege.service.AccountService.java
package com.huagege.service;
import com.huagege.domian.Account;
import java.util.List;
public interface AccountService {
/**
* 查询所有
* @return
*/
public List<Account> findAll();
/**
* 保存账户信息
* @param account
*/
public void saveAccount(Account account);
}
service实现类:com.huagege.service.impl.AccountServiceImpl.java
package com.huagege.service.impl;
import com.huagege.dao.AccountDao;
import com.huagege.domian.Account;
import com.huagege.service.AccountService;
import org.springframework.stereotype.Service;
import java.util.List;
@Service("accountService")
public class AccountServiceImpl implements AccountService {
private AccountDao accountDao;
@Override
public List<Account> findAll() {
System.out.println("业务层:查询所有账户信息...");
return null;
}
@Override
public void saveAccount(Account account) {
}
}
二、Spring框架代码的编写
搭建和测试Spring框架的开发环境
1)在resources文件夹下新建applicationContext.xml的配置文件,编写具体的配置信息
<?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">
<!--开启注解的扫描,希望处理service和dao,controller不需要Spring框架去处理-->
<context:component-scan base-package="com.huagege" >
<!--配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
</beans>
2)编写测试方法进行测试
com.huagege.test.TestSpring.java
package com.huagege.test;
import com.huagege.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("classpath:applicationContext.xml");
// 获取对象
AccountService as = (AccountService) ac.getBean("accountService");
// 调用方法
as.findAll();
}
}
log4j:WARN No appenders Could be found for logger (org.springframework.core.env.StandardEnvironment).
log4j:WARN Please initialize the log4j system properly.
原因:缺少log4j配置文件
解决方案:在复制配置文件log4j.properties在resources目录下即可,然后重新运行即可,如下图
三、整合SpringMVC框架
1、搭建和测试SpringMVC的开发环境
1)在web.xml中配置dispatcherServlet前端控制器和解决中文乱码的过滤器
<!--配置中文乱过滤器-->
<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>
<!--前端控制器-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.dispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
2)在resources文件夹下创建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">
<!--开启注解扫描,只扫描Controller注解-->
<context:component-scan base-package="com.huagege">
<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 location="/css/" mapping="/css/**" />
<mvc:resources location="/images/" mapping="/images/**" />
<mvc:resources location="/js/" mapping="/js/**" />
<!--开启SpringMVC注解的支持-->
<mvc:annotation-driven/>
</beans>
3)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
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>index.jsp</title>
</head>
<body>
<a href="account/findAll">测试</a>
</body>
</html>
注意:list.jsp在WEB-INF目录下新建pages文件夹目录下
<%@ 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>list.jsp</title>
</head>
<body>
<h3>查询所有的帐户成功</h3>
</body>
</html>
(2)创建AccountController类,编写方法,进行测试
package com.huagege.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
* 账户web
*/
@Controller
@RequestMapping("/account")
public class AccountController {
@RequestMapping("/findAll")
public String findAll(){
System.out.println("表现层;查询所有账户信息...");
return "list"
}
}
部署项目启动服务器,点击测试
出现(查询所有的帐户成功)测试成功
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
2)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,所以我们这里重新设置配置文件的路径方便进行资源管理)
<!--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>
3)在controller中注入service对象,调用service对象的方法进行测试
package com.huagege.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import cn.itcast.service.AccountService;
/**
* 账户web
*/
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService accountService;
@RequestMapping("/findAll")
public String findAll(){
System.out.println("表现层;查询所有账户信息...");
accountService.findAll();
return "list";
}
}
重新部署项目,点击index.jsp页面中的 “测试” 链接,控制台输出(表现层;查询所有账户信息…业务层:查询所有账户信息…)说明Spring整合Springmvc成功
四、Spring整合MyBatis框架
1、搭建和测试MyBatis的环境
1) 在resources文件夹下创建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"/>
<dataSource type="POOLED">
<property name="driver" value="com.MysqL.jdbc.Driver"/>
<property name="url" value="jdbc:MysqL:///ssm?characterEncoding=UTF-8"/>
<property name="username" value="root"/>
<property name="password" value=""/><!--注意:我这里的数据库密码为空,根据自己的数据密码填写相应的密码值-->
</dataSource>
</environment>
</environments>
<!-- 引入映射配置文件 -->
<mappers>
<package name="com.huagege.dao"/>
</mappers>
</configuration>
2)在AccountDao接口的方法上添加注解,编写sql语句
package com.huagege.dao;
import com.huagege.domian.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import java.util.List;
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(value="insert into account (name,money) values (#{name},#{money})")
public void saveAccount(Account account);
}
3)编写测试的方法testMybatis
package com.huagege.test;
import com.huagege.dao.AccountDao;
import com.huagege.domian.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 {
// 加载配置文件
InputStream inputStream = Resources.getResourceAsstream("sqlMapConfig.xml");
// 创建工厂
sqlSessionFactory factory;
factory = new sqlSessionFactoryBuilder().build(inputStream);
// 创建sqlSession对象
sqlSession session = factory.openSession();
// 获取代理对象
AccountDao dao = session.getMapper(AccountDao.class);
// 调用查询的方法
List<Account> list = dao.findAll();
for (Account account : list) {
System.out.println(account);
}
// 释放资源
session.close();
inputStream.close();
}
@Test
public void run2() throws Exception {
// 加载配置文件
InputStream inputStream = Resources.getResourceAsstream("sqlMapConfig.xml");
// 创建工厂
sqlSessionFactory factory;
factory = new sqlSessionFactoryBuilder().build(inputStream);
// 创建sqlSession对象
sqlSession session = factory.openSession();
// 获取代理对象
AccountDao dao = session.getMapper(AccountDao.class);
// 调用查询的方法
Account account = new Account();
account.setName("红太狼");
account.setMoney(400d);
dao.saveAccount(account);
// 提交事务
session.commit();
// 释放资源
session.close();
inputStream.close();
}
}
先执行run2(),然后在执行run1()方法,控制台输出:
Account{id=5, name=‘红太狼’, money=400.0},说明测试成功
2、Spring整合MyBatis框架
1)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:///ssmcharacterEncoding=UTF-8"/>
<property name="user" value="root"/>
<property name="password" value=""/>
</bean>
<!--配置sqlSessionFactory工厂-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.sqlSessionfactorybean">
<property name="dataSource" ref="dataSource" />
</bean>
<!--配置AccountDao接口所在包-->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.huagege.dao"/>
</bean>
2)在AccountDao接口中添加@Repository注解
3) 在service中注入dao对象,进行测试
com.huagege.service.impl.AccountServiceImpl
com.huagege.controller.AccountController
4)重新部署项目,点击index.jsp页面中的 “测试” 链接,控制台输出信息,测试成功
5)配置Spring的声明式事务管理,在applicationContext.xml配置如下信息
<!--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.huagege.service.impl.*ServiceImpl.*(..))"/>
</aop:config>
<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="保存"/><br/>
</form>
AccountController加入测试保存的代码
/**
* 保存
* @return
*/
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
accountService.saveAccount(account);
response.sendRedirect(request.getcontextpath()+"/account/findAll");
return;
}
重新部署向项目在index.jsp提交表单
此处先执行保存然后重定向到查询所有的代码,所以控制台输出刚刚保存的信息,整合成功。