spring+springmvc+ibatis整合注解方式实例

需求说明
实现用户通过数据库验证登录需求。採用 Myeclipse+Tomcat 6.0+Mysql 5.0+JDK 1.6
2.数据库表
开发所用是Mysql数据库,仅仅建立单张用户表T_USER,表结构例如以下：
字段名称	数据类型	字段描写叙述
ID	int	用户编号
USERNAME	VARCHAR	username
PASSWORD	VARCHAR	用户登录password
sql语句例如以下：
CREATE TABLE `t_user` (
`ID` int(11) NOT NULL auto_increment,
`USERNAME` varchar(255) default NULL,
`PASSWORD` varchar(255) default NULL,
PRIMARY KEY (`ID`)
);
3.构建源码文件夹
spring+springmvc+ibatis整合注解方式实例
5.各项Xml配置文件具体解释
(1)web.xml文件(Tomcat使用)
server依据配置内容初始化spring框架。springmvc框架和log4j日志框架



(2)springmvc-servlet.xml(Springmvc框架配置文件)
该文件是springmvc框架配置文件，也是它的核心文件


(3)applicationContext.xml(Spring框架配置文件)




(4)jdbc.properties(数据源属性文件)
数据源连接信息的源出处。眼下配置了三种数据库Oracle，DB2和Mysql
# Database Connectivity
# Oracle
#driver = oracle.jdbc.driver.OracleDriver
#url = jdbc:oracle:thin:@localhost:1521:oracl
#username = scott
#password = tiger
  
# DB2
#driver = com.ibm.db2.jcc.DB2Driver
#url = jdbc:db2://10.1.10.162:50000/mydb
#username = root
#password = root
  
# Mysql
driver = com.mysql.jdbc.Driver
url = jdbc:mysql://localhost:3306/mydb?
useUnicode=true&characterEncoding=utf-8
username = root
password = 1234
initialPoolSize = 1
minPoolSize = 1
maxPoolSize =10

(5)log4j.properties(log4j框架属性文件)
log4j日志属性配置文件
# log4j.properties
log4j.rootLogger=warn,console
  
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n
log4j.appender.console.Encoding=GB18030
  
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=10240KB
log4j.appender.file.MaxBackupIndex=100
log4j.appender.file.Encoding=GB18030
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n
  
log4j.appender.ROLLING_FILE_CUSTOMER=org.apache.log4j.RollingFileAppender
log4j.appender.ROLLING_FILE_CUSTOMER.Threshold=debug
log4j.appender.ROLLING_FILE_CUSTOMER.Append=true
log4j.appender.ROLLING_FILE_CUSTOMER.MaxFileSize=1024KB
log4j.appender.ROLLING_FILE_CUSTOMER.MaxBackupIndex=30
log4j.appender.ROLLING_FILE_CUSTOMER.layout=org.apache.log4j.PatternLayout
log4j.appender.ROLLING_FILE_CUSTOMER.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n
  
log4j.appender.ROLLING_FILE_WORKMANAGER=org.apache.log4j.RollingFileAppender
log4j.appender.ROLLING_FILE_WORKMANAGER.Threshold=debug
log4j.appender.ROLLING_FILE_WORKMANAGER.Append=true
log4j.appender.ROLLING_FILE_WORKMANAGER.MaxFileSize=1024KB
log4j.appender.ROLLING_FILE_WORKMANAGER.MaxBackupIndex=30
log4j.appender.ROLLING_FILE_WORKMANAGER.layout=org.apache.log4j.PatternLayout
log4j.appender.ROLLING_FILE_WORKMANAGER.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n
  
log4j.appender.ROLLING_FILE_RSS=org.apache.log4j.RollingFileAppender
log4j.appender.ROLLING_FILE_RSS.Threshold=debug
log4j.appender.ROLLING_FILE_RSS.Append=true
log4j.appender.ROLLING_FILE_RSS.MaxFileSize=1024KB
log4j.appender.ROLLING_FILE_RSS.MaxBackupIndex=30
log4j.appender.ROLLING_FILE_RSS.layout=org.apache.log4j.PatternLayout
log4j.appender.ROLLING_FILE_RSS.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n

(6)sqlMapConfig.xml(Ibatis框架配置文件)
该文件主要负责指定sql映射文件，即与model层对象相应的映射文件

>
<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
"http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<sqlMapConfig>
  <!-- 配置settings -->
  <settings lazyLoadingEnabled="true" useStatementNamespaces="false"/>
        
  <!-- 配置sql映射文件 -->
  <sqlMap resource="com/archie/model/User.xml"/>
</sqlMapConfig>

6.Java代码编写
依据包文件夹，能够看出分成model层,dao层,service层和web层,另外附加test层,用于java环境測试
(1)model层(User.java+User.xml)
   User.java代码
package com.archie.model;
  
public class User {
  
    private int id; 
    private String username; 
    private String password;
    
    public User(){
        
    }
    
    public User(int id){
        this.id = id;
    }
    
    public User(int id, String username){
        this.id = id;
        this.username = username;
    }
    
    public User(String username, String password) {
               this.username = username;
               this.password = password;
        }
    
    public User(int id, String username, String password){
        this.id = id;
        this.username = username;
        this.password = password;
    }
      
    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; 
    }
}
User.xml代码(model层对象的sql映射文件,被dao层调用,本质是sql语句集合,全部相关的sql均于此)



号 -->
         <isNotEmpty prepend="and" property="username"> 
                (username like '%$username$%') 
         </isNotEmpty> 
         <isNotEmpty prepend="and" property="password"> 
                (password like '%$password$%') 
         </isNotEmpty> 
        </dynamic>
        </delete>
        
</sqlMap>
 
(2)dao层(数据服务层,BaseDao.java+UserDao.java)
   BaseDao.java(公共Dao,其它Dao均继承它)
package com.archie.dao;
  
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
  
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
  
import com.ibatis.sqlmap.client.SqlMapClient;
  
public class BaseDao extends SqlMapClientDaoSupport {
        
        @Resource(name="sqlMapClient")  //通过bean名称注入
        private SqlMapClient sqlMapClient;
        
        @PostConstruct  //完毕sqlMapClient初始化工作
        public void initSqlMapClient(){
               super.setSqlMapClient(sqlMapClient);
        }
}

UserDao.java(user数据服务层)package com.archie.dao;
  
import java.util.List;
  
import org.springframework.stereotype.Component;
import com.archie.model.User;
  
@Component  //将UserDao类注入到bean里面
public class UserDao extends BaseDao {
  
        public boolean addUser(User user) throws Exception{
               User bean = (User)getSqlMapClientTemplate().insert("insertUser", user);
               return bean != null ? true : false;
        }
        
        public boolean deleteUser(int id) throws Exception{
               int result = getSqlMapClientTemplate().delete("deleteUser", id);
               return result > 0 ? true : false;
        }
        
        public User getUserById(int id) throws Exception{
               return (User)getSqlMapClientTemplate().queryForObject("findUserByID", id);
        }
        
        @SuppressWarnings("unchecked")
        public List getAllUsers() throws Exception{
               return getSqlMapClientTemplate().queryForList("findAllUser");
        }
        
        public boolean updateUser(User user) throws Exception{
               int result = getSqlMapClientTemplate().update("updateUser", user);
               return result > 0 ? true : false;
        }
        
        public User getUserByNameAndPassword(User user) throws Exception{
               return (User)getSqlMapClientTemplate().queryForObject("findUserByNameAndPassword", user);
        }
        
        public int getTotalCount() throws Exception{
               return (Integer)getSqlMapClientTemplate().queryForObject("getTotalCount");
        }
        
        @SuppressWarnings("unchecked")
        public List getUsersByLike(User user) throws Exception{
               return getSqlMapClientTemplate().queryForList("searchUsers", user);
        }
        
        public int deleteUserByLike(User user) throws Exception{
               int result = getSqlMapClientTemplate().delete("deleteUserByLike", user);
               if (result > 0) {
                       System.out.println("模糊删除成功。");
               }else {
                       System.out.println("没有匹配的记录1");
               }
               return result;
        }
}

(3)service层(业务服务层,UserService.java)
   UserService.java代码例如以下
package com.archie.service;
  
import java.util.List;
  
import javax.annotation.Resource;
  
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
  
import com.archie.dao.UserDao;
import com.archie.model.User;
  
@Component  //将UserService类注入到bean里面
@Transactional  //注入事务管理
public class UserService {
        
        @Resource(name="userDao")  // 通过名称注入到bean里面
        private UserDao userDao;
  
        public User login(User user) throws Exception{
               return userDao.getUserByNameAndPassword(user);
        }
        
        public void addUser(User user) throws Exception{
               userDao.addUser(user);
        }
        
        public void deleteUser(int id) throws Exception{
               boolean bool = userDao.deleteUser(id);
               if (!bool) {
                       System.out.println("删除的记录不存在！
");
                       throw new RuntimeException();
               }
        }
        
        public User getUserById(int id) throws Exception{
               User user = userDao.getUserById(id);
               if (user == null) {
                       return null;
               }
               return userDao.getUserById(id);
        }
        
        public void updateUser(User user) throws Exception{
               userDao.updateUser(user);
        }
        
        public int getTotalCount() throws Exception{
               return userDao.getTotalCount();
        }
        
        @SuppressWarnings("unchecked")
        public List getUsersByLike(User user) throws Exception{
               return userDao.getUsersByLike(user);
        }
        
        public int deleteUserByLike(User user) throws Exception{
               return userDao.deleteUserByLike(user);
        }
        
        public void insertUsers(List<User> list) throws Exception{
               for (int i = 0; i < list.size(); i++) {
                       if (i > 3) {
                               System.out.println("列表太长，中断事务");
                               throw new RuntimeException("中断事务异常,当列表长度大于3的时候有益抛出。看看事务是否回滚");
                       }
                       User user = list.get(i);
                       userDao.addUser(user);
               }
        }
}

(4)web层(界面控制层,UserController.java)
   UserController.java
package com.archie.web;
import javax.annotation.Resource;
import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.archie.model.User;
import com.archie.service.UserService;
@Controller
@RequestMapping("/user/*")
public class UserController {
  
 @Resource(name="userService")
 private UserService userService;
 private final String LIST="redirect:/detail";
  
  /**
     * 登录
     * @param user
     * @param session
     * @return
     */
    @RequestMapping("/login")
    public ModelAndView login(@Valid User user,BindingResult result,HttpSession session) throws Exception{
      if(!result.hasErrors()){
        User loginUser=userService.login(user);
        if(loginUser!=null){
            session.setAttribute("USER", loginUser);
            return new ModelAndView(LIST);
        }else{
            return new ModelAndView("redirect:/");
        }
      }else{
          ModelAndView view=new ModelAndView();
          view.setViewName("redirect:/");
          view.addObject("error", result.getAllErrors());
          return view;
      }
    }
    
    /**
     * 跳转至加入页
     * @return
     */
    @RequestMapping(value="/toAdd",method=RequestMethod.GET)
    public ModelAndView toAdd(){
        return new ModelAndView("user/add");
    }
    /**
     * 保存
     * @param user
     * @return
     */
    @RequestMapping(value="/add",method=RequestMethod.POST)
    public ModelAndView add(@Valid User user,BindingResult result) throws Exception{
        if(result.hasErrors()){
            return new ModelAndView("user/add","error", result.getAllErrors());
        }else{
            userService.addUser(user);
            return new ModelAndView(LIST);   
        }
    }
    /**
     * 依据ID删除
     * @param id
     * @return
     */
    @RequestMapping(value="/delete/{id}")
    public ModelAndView delete(@PathVariable int id) throws Exception{
        userService.deleteUser(id);
        return new ModelAndView(LIST);
    }
    /**
     * 跳转至编辑页面
     * @param id
     * @return
     */
    @RequestMapping(value="/edit/{id}")
    public ModelAndView edit(@PathVariable int id) throws Exception{
        User user=userService.getUserById(id);
        return new ModelAndView("user/edit","user",user);
    }
    /**
     * 编辑
     * @param user
     * @return
     */
    @RequestMapping(value="/edit")
    public ModelAndView update(@Valid User user,BindingResult result)throws Exception{
        ModelAndView view=new ModelAndView();
        if(result.hasErrors()){
            view.addObject("error", result.getAllErrors());
            view.setViewName("user/edit");
            return view;
        }else{
         userService.updateUser(user);
         return new ModelAndView(LIST);
        }
    }
}

(5)test层(Java环境下測试)
   TestUserController.java


文章来自：http://www.osblog.net/blog/580.html