SSM--SSM整合

傷城~ 2022-01-21 23:37 368阅读 0赞

## 一、项目层级结构以及所需JAR包： ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70][] ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 1][]

## 二、SpringMVC、Spring、Mybatis核心配置文件： ##

1.Mybatis：sqMapConfig.xml

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 2][]

2.Spring：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:context="http://www.springframework.org/schema/context"
    	xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
    	xmlns:tx="http://www.springframework.org/schema/tx"
    	xsi:schemaLocation="http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
    		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
    		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
    		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
    		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
    		
    		
    	<bean  id="config" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer">
    		<property name="locations">
    			<array>
    				<value>classpath:db.properties</value>
    			</array>
    		</property>
    		
    	</bean>
    	
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    			<property name="driverClassName" value="${driver}"></property>
    			<property name="url" value="${url}"></property>
    			<property name="username" value="${username}"></property>
    			<property name="password" value="${password}"></property>
    	</bean>
    		
    		
    		<bean id = "sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		     <property name="dataSource" ref="dataSource"/>
    		     
    		     <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    		</bean>
    		
    		
    		<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    		  <property name="basePackage" value="cn.skh.mapper"/>
    		  <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    		</bean>
    		
    		<bean name="userService" class="cn.skh.service.impl.UserServiceImpl">
    		   <property name="um" ref="userMapper"></property>
    		   
    		</bean>
    		
    </beans>

3.SpringMVC：applicationContext-controller.xml：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 3][]

## 三、Mapper、Service、Controller ##

1.mapper：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 4][] ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 5][]

3.Service以及实现类:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 6][] ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pfeGluZG9uZw_size_16_color_FFFFFF_t_70 7][]

2.Controller:

package cn.skh.controller;
    import java.util.List;
    import java.util.Map;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.servlet.ModelAndView;
    import cn.skh.bean.User;
    import cn.skh.service.UserService;
    @Controller
    @RequestMapping("uc")
    public class UserController {
    	 @Autowired
    	 private UserService us ;
    	 @RequestMapping("selectAll")
    	 public ModelAndView select() {
    		 ModelAndView mv = new ModelAndView("index");
    		 List<User> lists = us.selectAllUser();
    		 mv.addObject("list", lists);//放入request域中
    		 return mv;
    	 }
    	 @RequestMapping("delete/{id}")
    	 public String deleteUser(@PathVariable("id") int id,Map<String,String>map) {
    		 us.deleteUser(id);
    		 map.put("type", "delete");
    		 return "success";
    	 }
    	 @RequestMapping("update")
    	 public String updateUser(User u,Map<String,String> map) {
    		 us.updateById(u);
    		 map.put("type", "update");
    		 return "success";
    	 }
    	 @RequestMapping("add")
    	 public String addUser(User u,Map<String,String>map) {
    		 us.insertOne(u);
    		 map.put("type", "add");
    		 return "success";
    	 }
    }

四、总结：

在这里实现了基本的增删改查，在整合ssm的时一定要注意Jar包的版本号，不然无平白无故多出很多问题，还有使用SpringMVC时别忘了配置web.xml，让所有的请求归SpringMVC管，而不再是Servlet。希望能对你有所帮助。

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