前言

      说起整合自然离不开ssm，我本身并不太喜欢ORM,尤其是MyBatis，把SQL语句写在xml里，尤其是大SQL，可读性不高，出错也不容易排查。

 

开发环境

      idea2016、SpringMVC4、Mybatis3

 

项目结构

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 

SSM整合

1、pom.xml

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 2   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 3   <modelVersion>4.0.0</modelVersion> 4   <groupId>com.autohome</groupId> 5   <artifactId>SpringMVC3</artifactId> 6   <packaging>war</packaging> 7   <version>1.0-SNAPSHOT</version> 8   <name>SpringMVC3</name> 9   <url>http://maven.apache.org</url>10   <dependencies>11     <dependency>12       <groupId>junit</groupId>13       <artifactId>junit</artifactId>14       <version>4.10</version>15     </dependency>16     <dependency>17       <groupId>org.springframework</groupId>18       <artifactId>spring-core</artifactId>19       <version>4.3.6.RELEASE</version>20     </dependency>21     <dependency>22       <groupId>org.springframework</groupId>23       <artifactId>spring-beans</artifactId>24       <version>4.3.6.RELEASE</version>25     </dependency>26     <dependency>27       <groupId>org.springframework</groupId>28       <artifactId>spring-context</artifactId>29       <version>4.3.6.RELEASE</version>30     </dependency>31     <dependency>32       <groupId>org.springframework</groupId>33       <artifactId>spring-web</artifactId>34       <version>4.3.6.RELEASE</version>35     </dependency>36     <dependency>37       <groupId>org.springframework</groupId>38       <artifactId>spring-context-support</artifactId>39       <version>4.3.6.RELEASE</version>40     </dependency>41     <dependency>42       <groupId>org.springframework</groupId>43       <artifactId>spring-webmvc</artifactId>44       <version>4.3.6.RELEASE</version>45     </dependency>46     <dependency>47       <groupId>org.springframework</groupId>48       <artifactId>spring-jdbc</artifactId>49       <version>4.3.6.RELEASE</version>50     </dependency>51     <dependency>52       <groupId>org.apache.velocity</groupId>53       <artifactId>velocity</artifactId>54       <version>1.6.2</version>55     </dependency>56     <dependency>57       <groupId>org.apache.velocity</groupId>58       <artifactId>velocity-tools</artifactId>59       <version>2.0</version>60     </dependency>61     <dependency>62       <groupId>org.mybatis</groupId>63       <artifactId>mybatis</artifactId>64       <version>3.4.2</version>65     </dependency>66     <dependency>67       <groupId>org.mybatis</groupId>68       <artifactId>mybatis-spring</artifactId>69       <version>1.3.0</version>70     </dependency>71     <dependency>72       <groupId>com.microsoft.sqlserver</groupId>73       <artifactId>sqljdbc4</artifactId>74       <version>4.0</version>75     </dependency>76     <dependency>77       <groupId>commons-dbcp</groupId>78       <artifactId>commons-dbcp</artifactId>79       <version>1.4</version>80     </dependency>81   </dependencies>82   <build>83     <finalName>SpringMVC3</finalName>84   </build>85 </project>

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 

2、web.xml

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 1 <!DOCTYPE web-app PUBLIC 2  "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 3  "http://java.sun.com/dtd/web-app_2_3.dtd" > 4  5 <web-app> 6   <display-name>Archetype Created Web Application</display-name> 7   <!--告知javaEE容器，有那些内容需要添加到上下文里去--> 8   <context-param> 9     <param-name>contextConfigLocation</param-name>10     <param-value>classpath:applicationContext.xml</param-value>11   </context-param>12   <listener>13     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>14   </listener>15   <!--spring 前端控制器-->16   <servlet>17     <servlet-name>SpringMVC</servlet-name>18     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>19     <init-param>20       <param-name>contextConfigLocation</param-name>21       <param-value>classpath:springmvc-servlet.xml</param-value>22     </init-param>23   </servlet>24   <servlet-mapping>25     <servlet-name>SpringMVC</servlet-name>26     <url-pattern>/</url-pattern>27   </servlet-mapping>28 </web-app>

大学生就业培训,高中生培训,在职人员转行培训,企业团训

3、applicationContext.xml无配置内容所以忽略

4、springmvc-servlet.xml

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4        xmlns:mvc="http://www.springframework.org/schema/mvc" 5        xmlns:context="http://www.springframework.org/schema/context" 6        xsi:schemaLocation="http://www.springframework.org/schema/beans 7        http://www.springframework.org/schema/beans/spring-beans.xsd 8        http://www.springframework.org/schema/context 9        http://www.springframework.org/schema/context/spring-context.xsd10        http://www.springframework.org/schema/mvc11        http://www.springframework.org/schema/mvc/spring-mvc.xsd12 ">13 14     <!--从配置文件加载数据库信息-->15     <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">16         <property name="locations" value="classpath:config/jdbc.properties"/>17         <property name="fileEncoding" value="UTF-8"/>18     </bean>19 20     <!--配置数据源，这里使用Spring默认-->21     <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">22         <property name="driverClassName" value="${sqlserver.driver}"/>23         <property name="url" value="${sqlserver.url}"/>24         <property name="username" value="${sqlserver.username}"/>25         <property name="password" value="${sqlserver.password}"/>26     </bean>27 28     <!--扫描Mapper-->29     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">30         <property name="basePackage" value="com.autohome.mapper"/>31 32     </bean>33 34     <!--配置sqlSessionFactory-->35     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">36         <property name="configLocation" value="classpath:springmvc-mybatis.xml"/>37         <property name="dataSource" ref="dataSource"/>38     </bean>39 40     <!--启用最新的注解器、映射器-->41     <mvc:annotation-driven/>42 43     <!--扫描Controller注解类-->44     <context:component-scan base-package="com.autohome.controller" />45     <!--扫描Service注解类-->46     <context:component-scan base-package="com.autohome.service"/>47 48     <!--配置视图解析器-->49     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">50         <property name="prefix" value="/WEB-INF/views/"/>51         <property name="suffix" value=".jsp"/>52     </bean>53 54 </beans>

大学生就业培训,高中生培训,在职人员转行培训,企业团训

5、springmvc-mybatis.xml

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 3         "http://mybatis.org/dtd/mybatis-3-config.dtd"> 4 <configuration> 5  6     <!-- 实体类,简称 -设置别名 --> 7     <typeAliases> 8         <typeAlias alias="User" type="com.autohome.model.User" /> 9     </typeAliases>10 11 12     <mappers>13         <mapper resource="mapper/UserMapper.xml" />14     </mappers>15 16 </configuration>

大学生就业培训,高中生培训,在职人员转行培训,企业团训

6、dao接口层、mapper（dao接口实现层）、Biz层、 model层忽略不计(id,name,address3个测试字段)。 mapper文件让我踩了坑，后恍然大悟，mapper.xml要放在resources包下。

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public interface UserMapper {
    List<User> listAllUser();
    List<User> listPagedUser(@Param("pageIndex") int pageIndex,@Param("pageSize") int pageSize);
    int count();
    int updateUser(User user);
    int deleteUser(int id);
    int insertUser(User user);
    User getUserById(int id);
 
}

大学生就业培训,高中生培训,在职人员转行培训,企业团训

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 3         "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 4 <!--命名空间和接口保持一致--> 5 <mapper namespace="com.autohome.mapper.UserMapper"> 6     <select id="listAllUser" resultType="User"> 7         select * from t_userinfo 8     </select> 9 10     <select id="listPagedUser"   resultType="User">11         select top ${pageSize} * from t_userinfo where id not in (select top (${pageSize} * (${pageIndex} -1)) id from t_userinfo)12     </select>13 14     <select id="count" resultType="int">15         select count(*) from t_userinfo16     </select>17 18     <insert id="insertUser" parameterType="User">19         insert into t_userinfo VALUES (#{name},#{address})20     </insert>21 22     <update id="updateUser" parameterType="User">23         UPDATE  t_userinfo set name=#{name},address=#{address} where id=#{id}24     </update>25 26     <delete id="deleteUser" parameterType="int">27         DELETE FROM t_userinfo where id=#{id}28     </delete>29 30     <select id="getUserById" resultType="User" parameterType="int">31         select * from t_userinfo where id=#{id}32     </select>33 34 </mapper>

大学生就业培训,高中生培训,在职人员转行培训,企业团训

+ View Code

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package com.autohome.service;
 
import com.autohome.model.User;
import com.autohome.mapper.UserMapper;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
import java.util.List;
import java.util.Map;
 
 
@Service
public class UserBizImpl implements IUserBiz {
 
    @Autowired
    private UserMapper userMapper;
 
    public List<User> listAllUser() {
        return userMapper.listAllUser();
    }
 
    public List<User> listPagedUser(@Param("pageIndex") int pageIndex,@Param("pageSize") int pageSize) {
        return userMapper.listPagedUser(pageIndex,pageSize);
    }
 
    public int count() {
        return userMapper.count();
    }
 
    public int updateUser(User user) {
        return userMapper.updateUser(user);
    }
 
    public int deleteUser(int id) {
        return userMapper.deleteUser(id);
    }
 
    public int insertUser(User user) {
        return userMapper.insertUser(user);
    }
 
    public User getUserById(int id) {
        return userMapper.getUserById(id);
    }
}

7、Controller。 我新建了一个UserController，在这里调用了增删改查分页的操作

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package com.autohome.controller;
 
import com.autohome.service.IUserBiz;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
 
import com.autohome.model.User;
 
 
@Controller
@RequestMapping("/User")
public class UserController {
 
    @Autowired
    private IUserBiz userBiz;
 
    @RequestMapping("/index")
    public ModelAndView index(){
        //System.out.println("size:"+userBiz.listAllUser().size());
 
        System.out.println("size:"+userBiz.count());
//
//        User user =new User();
//        user.setName("张三");
//        user.setAddress("shanxi");
//
//        int result = userBiz.insertUser(user);
//        if(result>0)
//        {
//            System.out.println("insert success");
//        }else{
//            System.out.println("insert err");
//        }
 
        int result = userBiz.deleteUser(39);
        if(result>0)
        {
            System.out.println("delete success");
        }else{
            System.out.println("delete err");
        }
 
//        User user =new User();
//        user.setId(35);
//        user.setName("张三11111");
//        user.setAddress("china");
//
//        int result = userBiz.updateUser(user);
//        if(result>0)
//        {
//            System.out.println("update success");
//        }else{
//            System.out.println("update err");
//        }
 
 
        //System.out.println("size:"+userBiz.listPagedUser(1,10).size());
 
 
 
        ModelAndView mav=new ModelAndView("index");
 
        return mav;
    }
}

　　


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