搭建整合环境

1. 整合说明：SSM整合可以使用多种方式，咱们会选择XML+注解的方式

2. 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

3. 创建数据库和表结构

   语句

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

4. 创建maven工程

1.创建ssm工程
2.创建service包
3.创建dao层包
4.创建domain包
5.创建controller层包
6.web依赖于service，service依赖于dao，dao依赖于domain
7.在项目的pom.xml文件中引入坐标依赖
8.部署项目，只要把ssm_web项目加入到Tomcat服务器中即可

pom.xml文件中的坐标依赖示例点击查看

<properties>
<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>
<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>

5.编写实体类，在domain包中编写

package com.mrdeer.domain;import java.io.Serializable;/*** 账户信息*/
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;}
}

6.编写dao层接口
7.编写service层接口

至此，基本结构已经搭建完成

搭建Spring开发环境

1.在项目中创建applicationContent.xml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.mrdeer"><!-- 配置要忽略的注解 --><context:exclude-filter type="annotation"expression="org.springframework.stereotype.Controller"/></context:component-scan>
</beans>

2.在项目中编写测试方法，进行测试

package com.mrdeer.test;import com.mrdeer.service.AccountService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;public class TestSpring {@Testpublic void run1(){//加载配置文件ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContent.xml");//获取对象AccountService as = (AccountService) ac.getBean("AccountService");//调用方法as.findAll();}
}

Spring整合SpringMVC

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

<!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><servlet><servlet-name>dispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- 配置Servlet的初始化参数，读取springmvc的配置文件，创建spring容器 --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springmvc.xml</param-value></init-param><!-- 配置servlet启动时加载对象 --><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>dispatcherServlet</servlet-name><url-pattern>/</url-pattern></servlet-mapping></web-app>

2.在web.xml中配置DispatcherServlet过滤器解决中文乱码

<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>

3.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">
<!-- 配置spring创建容器时要扫描的包 -->
<context:component-scan base-package="com.mrdeer"></context:component-scan>
<!-- 配置视图解析器 -->
<bean id="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/pages/"></property><property name="suffix" value=".jsp"></property>
</bean><!--  声明哪些静态资源不拦截  -->
<mvc:resources mapping="/js/**" location="/js/" /><!-- 配置spring开启注解mvc的支持-->
<mvc:annotation-driven></mvc:annotation-driven>
</beans>

4.测试SpringMVC的框架是否搭建成功
(1) 编写index.jsp和list.jsp编写，超链接

<a href="account/findAll">查询所有</a>

(2) 创建AccountController类，编写方法，进行测试

package com.mrdeer.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("controller层，查询所有账户");return "list";}
}

2.Spring整合SpringMVC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）

<!--加载applicationContext.xml配置文件--><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContent.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.mrdeer.controller;import com.mrdeer.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;/*** 账户web*/
@Controller
@RequestMapping("/account")
public class AccountController {@Autowiredprivate AccountService accountService;@RequestMapping("/findAll")public String findAll(){System.out.println("controller层，查询所有账户");accountService.findAll();return "list";}
}

3.至此，Spring整合SpringMVC框架就整合完成

Spring整合MyBatis框架

1. 搭建和测试MyBatis环境

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 configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><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://127.0.0.1:3306/ssm"/><property name="username" value="root"/><property name="password" value="root"/></dataSource></environment></environments><!--使用注解--><mappers><!--该包下所有的dao接口都可以使用--><package name="com.mrdeer.dao"/></mappers>
</configuration>

2.在AccountDao接口的方法上添加注解，编写SQL语句

package com.mrdeer.dao;import com.mrdeer.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;import java.util.List;/*** 账户Dao接口*/
public interface AccountDao {//查询所有账户@Select("select * from account")public List<Account> findAll();//保存账户信息@Insert(value = "insert into account (name,money) values(#{name},#{money})")public void saveAccount(Account account);}

3.编写测试方法

package com.mrdeer.test;import com.mrdeer.dao.AccountDao;
import com.mrdeer.domain.Account;
import com.mrdeer.service.AccountService;
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 org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;import java.io.IOException;
import java.io.InputStream;
import java.util.List;public class TestSpring {@Testpublic void run1() throws IOException {//加载配置文件ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContent.xml");//获取对象AccountService as = (AccountService) ac.getBean("AccountService");//调用方法as.findAll();/** MyBatis的测试* *///加载配置文件InputStream inputStream = Resources.getResourceAsStream("SqlMapConfig.xml");//创建工厂SqlSessionFactory 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();}@Testpublic void run2() throws IOException {Account account = new Account();account.setName("奥利给");account.setMoney(400d);//加载配置文件InputStream inputStream = Resources.getResourceAsStream("SqlMapConfig.xml");//创建工厂SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(inputStream);//创建对象SqlSession session = factory.openSession();//获取代理对象AccountDao accountDao = session.getMapper(AccountDao.class);accountDao.saveAccount(account);//提交事物session.commit();//释放资源session.close();inputStream.close();}
}

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

<!--配置C3P0的连接池对象--><bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"><property name="driverClassName" value="com.mysql.jdbc.Driver"/><property name="url" value="jdbc:mysql://127.0.0.1:3306/ssm"/><property name="username" 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="mapperScaner" class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.mrdeer.dao"/></bean>

2.在AccountDao接口中添加@Respository注解

package com.mrdeer.dao;import com.mrdeer.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@Select("select * from account")public List<Account> findAll();//保存账户信息@Insert(value = "insert into account (name,money) values(#{name},#{money})")public void saveAccount(Account account);}

3.在service中注入dao对象，进行测试

package com.mrdeer.service.impl;import com.mrdeer.dao.AccountDao;
import com.mrdeer.domain.Account;
import com.mrdeer.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 {@Autowiredprivate AccountDao accountDao;/*** 查询所有账户信息* @return*/@Overridepublic List<Account> findAll() {System.out.println("查询所有账户");return accountDao.findAll();}/*** 保存账户* @param account*/@Overridepublic void saveAccount(Account account) {System.out.println("保存账户");}
}package com.mrdeer.controller;import com.mrdeer.domain.Account;
import com.mrdeer.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;import java.util.List;/*** 账户web*/
@Controller
@RequestMapping("/account")
public class AccountController {@Autowiredprivate AccountService accountService;@RequestMapping("/findAll")public String findAll(){System.out.println("controller层，查询所有账户");List<Account> list = accountService.findAll();for(Account account : list){System.out.println(account);}return "list";}
}

4,配置Spring的声明式事务管理

    <!--配置声明式事务管理--><!--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(public * com.mrdeer.service..ServiceImpl.*(..))"/></aop:config>

6.测试保存账户的方法

/*** 保存* @return*/@RequestMapping("/save")public String save(Account account) throws IOException {accountService.saveAccount(account);return "list";}

至此，SSM的整合就算完成了