1.第一步：首先创建一个web工程
然后在web/WEB-INF的目录下创建lib包，并将ssm整合的jar包导入
导入后不要忘了，右击lib目录将jar包添加到库中的操作
2.第二步：首先进行springmvc的配置
在ssm目录下新建config文件，在config文件下创建springmvc.xml文件
然后右击config文件，将此文件标记为ROOT
建好controller层的包目录，在springmvc.xml中配置注解扫描到controller层
然后进行springmvc.xml文件的配置
<?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:mvc="http://www.springframework.org/schema/mvc"
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-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!-- 1.配置注解扫描位置 -->
<context:component-scan base-package="com.zxh.backoffice.web.controller" />
<!-- 2.配置注解处理映射-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<!--3.配置适配器-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
<!-- 4.配置springmvc视图解析器 视图解析器解析的视频路径为：前缀 + 后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
然后在web.xml文件中进行配置，加载springmvc.xml文件配置
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 3.0的springmvc 默认加载WEB-INF下的dispatcher-servlet.xml文件 3.2的springmvc
加载DispatcherServlet-servlet.xml文件 -->
<init-param>
<!-- 修改黑底springmvc加载的配置文件路径 -->
<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>*.do</url-pattern>
</servlet-mapping>
</web-app>
在controller层下创建UserController.java文件，进行到controller层的测试
package com.zxh.backoffice.web.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/user")
public class UserController {
@RequestMapping("/list")
public String list(){
return "user/list";
}
}
在web目录下，建好jsp文件
list.jsp
<%--
Created by IntelliJ IDEA.
User: 赵秀浩
Date: 2020/1/6
Time: 20:25
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>用户页面</title>
</head>
<body>
用户列表：
</body>
</html>
启动Tomcat进行测试，如下效果即说明到controller层的配置成功。
3.第三步：Model、mapper、service层的配置
首先准备好相应的数据库表，然后在工程中新建好Model、mapper、service这三层目录，然后将model和mapper文件加入（model和mapper的代码可用通过逆向工程生成的）
准备一个案列方便后续进行测试如：
ItemsMapper.java接口
ItemsMapper.xml
ItemsService.java
service实现类，注意：在service层上加上注解
然后再先创建mybatis的配置文件mybatis.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>
<!-- 别名配置 -->
<typeAliases>
<!-- 批量配置别名：指定批量定义别名的类包，别名为类名（首字母大小写都可） -->
<package name="com.zxh.backoffice.model"/>
</typeAliases>
<mappers>
<!-- 批量加载映射文件 -->
<package name="com.zxh.backoffice.mapper"/>
</mappers>
</configuration>
然后进行spring的配置
数据库的数据源文件
db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatisday01
jdbc.username=root
jdbc.password=root
spring配置文件的配置，配置c3p0数据源和mybatis的会话工厂，及添加Bean的注解装配
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-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
<!--加载配置文件-->
<context:property-placeholder location="classpath:db.properties"/>
<!--1.配置数据源-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="2"/>
</bean>
<!--2.配置sessionFactory-->
<bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 指定配置文件位置 -->
<property name="configLocation" value="classpath:mybatis.xml"/>
</bean>
<!--3.自动生成dao,mapper-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.zxh.backoffice.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"/>
</bean>
<!--自动扫描service-->
<context:component-scan base-package="com.zxh.backoffice"/>
</beans>
然后在Web.xml中配置spring容器
<!--配置spring-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
再为测试用例添加jsp页面，编写controller层代码
UserController.java
package com.zxh.backoffice.web.controller;
import com.zxh.backoffice.model.Items;
import com.zxh.backoffice.service.IItemsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.List;
@Controller
@RequestMapping("/items")
public class ItemsController {
@Autowired
private IItemsService iItemsService;
@RequestMapping("/list")
public String list(){
List<Items> allItems = iItemsService.findAllItems();
System.out.println(allItems);
return "items/list";
}
}
启动Tomcat进行整合测试
配置事务：
<!--配置事务-->
<!-- 4.配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 5.开启事务注解-->
<tx:annotation-driven></tx:annotation-driven>
然后在service层添加事务注解
测试事务：
UserController.java
@RequestMapping("/save")
public String save(){
//创建一个商品
Items item = new Items();
item.setName("iphone12");
item.setPrice(5499.00F);
item.setCreatetime(new Date());
item.setDetail("666");
//保存数据
iItemsService.saveOrUpdate(item);
return "items/list";
}
int i = 1/0 没有注释掉时，数据将不会添加进数据库，注释掉则可以添加到数据库，说明事务配置成功。
