1.第一步：首先創建一個web工程
然後在web/WEB-INF的目錄下創建lib包，並將ssm整合的jar包導入
導入後不要忘了，右擊lib目錄將jar包添加到庫中的操作
2.第二步：首先進行springmvc的配置
在ssm目錄下新建config文件，在config文件下創建springmvc.xml文件
然後右擊config文件，將此文件標記爲ROOT
建好controller層的包目錄，在springmvc.xml中配置註解掃描到controller層
然後進行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.配置註解掃描位置 -->
<context:component-scan base-package="com.zxh.backoffice.web.controller" />
<!-- 2.配置註解處理映射-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<!--3.配置適配器-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
<!-- 4.配置springmvc視圖解析器 視圖解析器解析的視頻路徑爲：前綴 + 後綴 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
然後在web.xml文件中進行配置，加載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 默認加載WEB-INF下的dispatcher-servlet.xml文件 3.2的springmvc
加載DispatcherServlet-servlet.xml文件 -->
<init-param>
<!-- 修改黑底springmvc加載的配置文件路徑 -->
<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層下創建UserController.java文件，進行到controller層的測試
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目錄下，建好jsp文件
list.jsp
<%--
Created by IntelliJ IDEA.
User: 趙秀浩
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>用戶頁面</title>
</head>
<body>
用戶列表：
</body>
</html>
啓動Tomcat進行測試，如下效果即說明到controller層的配置成功。
3.第三步：Model、mapper、service層的配置
首先準備好相應的數據庫表，然後在工程中新建好Model、mapper、service這三層目錄，然後將model和mapper文件加入（model和mapper的代碼可用通過逆向工程生成的）
準備一個案列方便後續進行測試如：
ItemsMapper.java接口
ItemsMapper.xml
ItemsService.java
service實現類，注意：在service層上加上註解
然後再先創建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>
<!-- 別名配置 -->
<typeAliases>
<!-- 批量配置別名：指定批量定義別名的類包，別名爲類名（首字母大小寫都可） -->
<package name="com.zxh.backoffice.model"/>
</typeAliases>
<mappers>
<!-- 批量加載映射文件 -->
<package name="com.zxh.backoffice.mapper"/>
</mappers>
</configuration>
然後進行spring的配置
數據庫的數據源文件
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數據源和mybatis的會話工廠，及添加Bean的註解裝配
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">
<!--加載配置文件-->
<context:property-placeholder location="classpath:db.properties"/>
<!--1.配置數據源-->
<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.自動生成dao,mapper-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.zxh.backoffice.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"/>
</bean>
<!--自動掃描service-->
<context:component-scan base-package="com.zxh.backoffice"/>
</beans>
然後在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>
再爲測試用例添加jsp頁面，編寫controller層代碼
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";
}
}
啓動Tomcat進行整合測試
配置事務：
<!--配置事務-->
<!-- 4.配置事務管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 5.開啓事務註解-->
<tx:annotation-driven></tx:annotation-driven>
然後在service層添加事務註解
測試事務：
UserController.java
@RequestMapping("/save")
public String save(){
//創建一個商品
Items item = new Items();
item.setName("iphone12");
item.setPrice(5499.00F);
item.setCreatetime(new Date());
item.setDetail("666");
//保存數據
iItemsService.saveOrUpdate(item);
return "items/list";
}
int i = 1/0 沒有註釋掉時，數據將不會添加進數據庫，註釋掉則可以添加到數據庫，說明事務配置成功。