SSM

spring-mybatis.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:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context-3.0.xsd
         http://www.springframework.org/schema/aop
         http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
         http://www.springframework.org/schema/tx 
         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

    <!-- 打开Spring的Annotation支持 -->
    <context:annotation-config />
    <!-- 设定Spring 去哪些包中找Annotation -->
    <context:component-scan base-package="org.h3c" />

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <!-- 配置连接池的初始值 -->
        <property name="initialSize" value="1" />
        <!-- 连接池的最大值 -->
        <!-- <property name="maxActive" value="500"/> -->
        <!-- 最大空闲时，当经过一个高峰之后，连接池可以将一些用不到的连接释放，一直减少到maxIdle为止 -->
        <!-- <property name="maxIdle" value="2"/> -->
        <!-- 当最小空闲时，当连接少于minIdle时会自动去申请一些连接 -->
        <property name="minIdle" value="1" />
        <property name="maxActive" value="100" />
        <property name="maxIdle" value="20" />
        <property name="maxWait" value="1000" />
    </bean>
    <!-- 导入Src目录下的jdbc.properties文件 -->
    <context:property-placeholder location="classpath:jdbc.properties" />
    <!--创建Spring的SessionFactory工厂 -->
    <!-- 如果使用的是Annotation的方式，不能使用LocalSessionFactoryBean,而应该使用 org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- <property name="mapperLocations" value="classpath*:dbmap/*Mapper.xml" 
            /> -->
    </bean>
    <!--<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> -->
    <!-- <property name="basePackage" value="org.h3c.dao" /> -->
    <!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> -->
    <!-- </bean> -->
    <bean id="IUserDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="mapperInterface" value="org.h3c.dao.IUserDao" />
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
    </bean>
    <!-- 配置事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
</beans>

 spring-mvc.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:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        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-3.1.xsd">
    
    <mvc:annotation-driven/>
    <context:component-scan base-package="org.h3c.controller"/>
    <!-- 将静态文件指定到某个特殊的文件夹中统一处理 -->
<!--     <mvc:default-servlet-handler/> -->
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
    
    <!-- 设置multipartResolver才能完成文件上传 -->
<!--     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> -->
<!--         <property name="maxUploadSize" value="5000000"></property> -->
<!--     </bean> -->
    
<!--     <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> -->
<!--         <property name="exceptionMappings"> -->
<!--             <props> -->
<!--                 <prop key="zttc.itat.model.UserException">error</prop> -->
<!--             </props> -->
<!--         </property> -->
<!--     </bean> -->
</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0">
    <display-name>SSM</display-name>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mybatis.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
<!--             <param-value>classpath:spring-mvc.xml</param-value> -->
            <param-value>/WEB-INF/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <!-- 此处可以可以配置成*.do，对应struts的后缀习惯 -->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <filter>
        <filter-name>CharacterFilter</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>CharacterFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

package org.h3c.service;

import java.util.List;

import org.h3c.model.User;
import org.springframework.stereotype.Repository;

@Repository
public interface IUserService {
    public void insertUser(User user);
    public void updateUser(User user);
    public void deleteUser(int id);
    public User selectUser(int id);
    public List<User> userSelectList();
}

User.java

package org.h3c.model;

public class User {
    private int id;
    private String username;
    private String password;
    private String nickname;
//    private Group group;
    
    public User() {
        super();
        // TODO Auto-generated constructor stub
    }
    public User(String username, String password, String nickname) {
        super();
        this.username = username;
        this.password = password;
        this.nickname = nickname;
    }
    
    public User(int id, String username, String password, String nickname) {
        super();
        this.id = id;
        this.username = username;
        this.password = password;
        this.nickname = nickname;
    }
//    public Group getGroup() {
//        return group;
//    }
//    public void setGroup(Group group) {
//        this.group = group;
//    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getNickname() {
        return nickname;
    }
    public void setNickname(String nickname) {
        this.nickname = nickname;
    }
    @Override
    public String toString() {
        return "User [id=" + id + ", username=" + username + ", password="
                + password + ", nickName=" + nickname + ", group=" 
//                + group
                + "]";
    }
    
    
}

IUserService.java（接口）

package org.h3c.service;

import java.util.List;

import org.h3c.model.User;
import org.springframework.stereotype.Repository;

@Repository
public interface IUserService {
    public void insertUser(User user);
    public void updateUser(User user);
    public void deleteUser(int id);
    public User selectUser(int id);
    public List<User> userSelectList();
}

UserService.java（实现类）

package org.h3c.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.h3c.dao.IUserDao;
import org.h3c.model.User;
import org.h3c.service.IUserService;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperFactoryBean;
import org.springframework.stereotype.Component;

@Component("userService")
public class UserService implements IUserService {

//    @Resource(name="sqlSessionFactory")
//    private SqlSessionFactoryBean sqlSessionFactory;
    @Resource(name="IUserDao")
    //private MapperFactoryBean UserMapper;
    private IUserDao userDao;
    @Override
    public void insertUser(User user) {
        // TODO Auto-generated method stub

    }

    @Override
    public void updateUser(User user) {
        // TODO Auto-generated method stub

    }

    @Override
    public void deleteUser(int id) {
        // TODO Auto-generated method stub

    }

    @Override
    public User selectUser(int id) {
        try {
             
            User u = userDao.selectUser(id);
            return u;
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }


    public void setUserDao(IUserDao userDao) {
        this.userDao = userDao;
    }

    @Override
    public List<User> userSelectList() {
        // TODO Auto-generated method stub
        return null;
    }

}

 IUserDao.java

package org.h3c.dao;

import java.util.List;

import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.h3c.model.User;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

@Component("userDao")
public interface IUserDao {
    @Insert("INSERT INTO t_user values()")
    public void insertUser(User user);

    public void updateUser(User user);

    public void deleteUser(int id);

    @Select("SELECT * FROM t_user where id=#{id}")
    public User selectUser(int id);

    public List<User> userSelectList();

}

 UserController.java

package org.h3c.controller;

import javax.annotation.Resource;

import org.h3c.model.User;
import org.h3c.service.IUserService;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class UserController {
    @Resource(name="userService")
    private IUserService userService;
    
    @RequestMapping("/getuser")
    public String getUser(int id,Model model){
        System.out.println(id);
        User u =userService.selectUser(id);
        model.addAttribute(u);
        System.out.println(u);
        return "user/user";
    }

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }
    
}

package org.h3c.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.h3c.dao.IUserDao;
import org.h3c.model.User;
import org.h3c.service.IUserService;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperFactoryBean;
import org.springframework.stereotype.Component;

@Component("userService")
public class UserService implements IUserService {

//    @Resource(name="sqlSessionFactory")
//    private SqlSessionFactoryBean sqlSessionFactory;
    @Resource(name="IUserDao")
    //private MapperFactoryBean UserMapper;
    private IUserDao userDao;
    @Override
    public void insertUser(User user) {
        // TODO Auto-generated method stub

    }

    @Override
    public void updateUser(User user) {
        // TODO Auto-generated method stub

    }

    @Override
    public void deleteUser(int id) {
        // TODO Auto-generated method stub

    }

    @Override
    public User selectUser(int id) {
        try {
             
            User u = userDao.selectUser(id);
            return u;
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }


    public void setUserDao(IUserDao userDao) {
        this.userDao = userDao;
    }

    @Override
    public List<User> userSelectList() {
        // TODO Auto-generated method stub
        return null;
    }

}

整个项目目录结构如下：

如果没有jstl的包，那么我们的jsp页面就不能使用${}