SpringMVC+Mysql实例详解(附demo)

<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="2.5" 
 xmlns="http://java.sun.com/xml/ns/javaee" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 
 <servlet> 
  <!--springmvc的核心是DispatcherServlet，它负责控制整个页面的请求路径--> 
  <servlet-name>dispatcherServlet</servlet-name> 
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
<!--初始化参数>/WEB-INF/classes/相当于src目录--> 
  <init-param> 
  <!-- 这个param-name必须是contextConfigLocation--> 
   <param-name>contextConfigLocation</param-name> 
   <param-value>/WEB-INF/classes/applicationContext.xml</param-value> 
  </init-param> 
  <load-on-startup>2</load-on-startup> 
 </servlet> 
　<!--拦截所有以do结尾的请求--> 
 <servlet-mapping> 
  <servlet-name>dispatcherServlet</servlet-name> 
  <url-pattern>*.do</url-pattern> 
 </servlet-mapping> 
<!--处理从页面传递中文到后台而出现的中文乱码问题--> 
 <filter> 
  <filter-name>encodingFilter</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>encodingFilter</filter-name> 
  <url-pattern>/*</url-pattern> 
 </filter-mapping>  
 <welcome-file-list> 
 <welcome-file>index.jsp</welcome-file> 
 </welcome-file-list> 
</web-app> 

db.url= jdbc:MySQL:///springmvcdb?useUnicode=true&characterEncoding=utf8

db.username=root

db.password=root

db.dirverClass= com.mysql.jdbc.Driver

<?xml version="1.0"encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 
 <!-- 定义个缺省的控制适配器 --> 
 <bean 
  class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/> 
 <!-- 获取配置文件 --> 
 <bean id="config" 
  class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 
  <property name="locations"> 
   <list> 
    <value>classpath:db-config.properties</value> 
   </list> 
  </property> 
 </bean> 
 <!-- 获取数据源 --> 
 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> 
  <property name="driverClassName"> 
   <value>${db.dirverClass}</value> 
  </property> 
  <property name="url"> 
   <value>${db.url}</value> 
  </property> 
  <property name="username"> 
   <value>${db.username}</value> 
  </property> 
  <property name="password"> 
   <value>${db.password}</value> 
  </property> 
 </bean> 
 <!-- 
  URL到处理器的映射列表可以配置多个 
  mappings属性健值为URL程序文件地址，而值为处理器的Bean名字，URL程序文件地址可采用路径匹配的模式，如： 
  com/mvc/t?st.jsp:匹配com/mvc/test.jsp、com/mvc/tast.jsp等 com/mvc /*.jsp 
  ：匹配所有com/mvc/下带jsp后缀的URL com/mvc 
  /**/test.jsp：匹配所有在com/mvc路径下或子孙路径下的test.jsp com/mvc 
  /**/*.jsp：匹配所有com/mvc路径下或子孙路径下带.jsp后缀的URL cn/**/web/bla.jsp：匹配 
  cn/option/web/dog.jsp cn/option/test/web/dog.jsp cn/web/dog.jsp的请求 
 --> 
 <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> 
  <property name="mappings"> 
   <value> 
    user.do=userAction 
</value> 
  </property> 
 </bean> 
 
 <!--定义视图通过internalResourceView来表示使用的是Servlet/jsp技术--> 
 <bean id="viewResolver" 
  class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
  <property name="viewClass"> 
   <value>org.springframework.web.servlet.view.InternalResourceView 
   </value> 
  </property> 
  <!--jsp存放的目录--> 
  <property name="prefix"> 
   <value>/jsp/</value> 
  </property> 
  <!--jsp文件的后缀--> 
  <property name="suffix"> 
   <value>.jsp</value> 
  </property> 
 </bean> 
 <bean id="userDao" class="com.yjde.springmvc.UserDao"> 
  <property name="dataSource"ref="dataSource"></property> 
 </bean> 
 <!--定义控制器--> 
 <bean id="userAction" class="com.yjde.springmvc.UserController"> 
  <property name="dao"> 
   <ref bean="userDao"/> 
  </property> 
  <property name="commandClass"> 
   <value>com.yjde.springmvc.UserDao</value> 
  </property> 
  <property name="viewpage"> 
   <value>userInfo</value> 
  </property> 
 </bean> 
</beans> 

package com.yjde.springmvc; 
 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.util.Collection; 
import java.util.List; 
 
import org.springframework.jdbc.core.RowMapper; 
import org.springframework.jdbc.core.support.JdbcDaoSupport; 
 
@SuppressWarnings("all") 
public class UserDao extends JdbcDaoSupport { 
 private String msg; 
 
 public String getMsg() { 
  return msg; 
 } 
 
 public void setMsg(String msg) { 
  this.msg = msg; 
 } 
 
 // 此方法把USEMBO表对应的字段查询出来依次放入userPO中 
 public Collection<UserPO> doquery() { 
  String sql = "SELECT T.USERID,T.USERNAME,T.USERAGE FROM USERMBO T"; 
  return super.getJdbcTemplate().query(sql, new RowMapper() { 
 
   public Object mapRow(ResultSet rs, int num) throws SQLException { 
    UserPO user = new UserPO(); 
    user.setUserId(rs.getInt("USERID")); 
    user.setUserName(rs.getString("USERNAME")); 
    user.setUserAge(rs.getInt("USERAGE")); 
    return user; 
   } 
  }); 
 } 
} 

package com.yjde.springmvc; 
 
import java.io.PrintWriter; 
import java.util.ArrayList; 
import java.util.Collection; 
import java.util.HashMap; 
import java.util.List; 
import java.util.Map; 
 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
 
import org.springframework.validation.BindException; 
import org.springframework.web.servlet.ModelAndView; 
import org.springframework.web.servlet.mvc.SimpleFormController; 
 
@SuppressWarnings("all") 
// SimpleFormController是spring提供的表单控制器，把页面中Form中的元素名称设定为和bean中的一样，当传入的时候Spring会自动抓取form中和Bean名称一样的元素值，把它转换成一个bean,使得开发人员可以很方便的使用。 
public class UserController extends SimpleFormController { 
 private String viewpage; 
 private UserDao dao; 
 
 public String getViewpage() { 
  return viewpage; 
 } 
 
 public void setViewpage(String viewpage) { 
  this.viewpage = viewpage; 
 } 
 
 @Override 
 protected ModelAndView onSubmit(HttpServletRequest request, 
   HttpServletResponse response, Object command, BindException errors) 
   throws Exception { 
  UserDao tmp = (UserDao) command; 
  Collection<UserPO> list = dao.doquery(); 
  List<UserPO> users = new ArrayList<UserPO>(); 
  UserPO user; 
  for (UserPO userPO : list) { 
   user = new UserPO(); 
   user.setUserId(userPO.getUserId()); 
   user.setUserName(userPO.getUserName()); 
   user.setUserAge(userPO.getUserAge()); 
   users.add(user); 
  } 
  Map mp = new HashMap(); 
  mp.put("list", users); 
  return new ModelAndView(getViewpage(), mp); 
 } 
 
 public void setDao(UserDao dao) { 
  this.dao = dao; 
 } 
 
} 
package com.yjde.springmvc; 
 
public class UserPO { 
 private Integer userId; 
 private String userName; 
 private Integer userAge; 
 
 public Integer getUserId() { 
  return userId; 
 } 
 
 public void setUserId(Integer userId) { 
  this.userId = userId; 
 } 
 
 public String getUserName() { 
  return userName; 
 } 
 
 public void setUserName(String userName) { 
  this.userName = userName; 
 } 
 
 public Integer getUserAge() { 
  return userAge; 
 } 
 
 public void setUserAge(Integer userAge) { 
  this.userAge = userAge; 
 } 
} 
</pre><br> 
<p align="left"><span style="color:teal">类创建完成以后我们编写两个</span><span style="color:teal">JSP</span><span style="color:teal">进行测试：</span></p> 
<p align="left"><span style="color:teal">Index.jsp:</span></p> 
<p align="left"><span style="color:#bf5f3f"></span></p> 
<pre name="code" class="html"><%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> 
<% 
String path = request.getContextPath(); 
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 
%> 
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 
<html> 
 <head> 
 <base href="<%=basePath%>"> 
  
 <title>My JSP 'index.jsp' starting page</title> 
 <meta http-equiv="pragma" content="no-cache"> 
 <meta http-equiv="cache-control" content="no-cache"> 
 <meta http-equiv="expires" content="0">  
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 
 <meta http-equiv="description" content="This is my page"> 
 <!-- 
 <link rel="stylesheet" type="text/css" href="styles.css"> 
 --> 
 </head> 
 
 <body> 
 <form action="user.do" method="post"> 
 请输入<input name="msg" type="text" /> 
 <input type="submit" value="提交"> 
 </form> 
 </body> 
</html> 
</pre><p align="left"><span style="color:teal"> </span></p> 
<p align="left"><span style="color:teal">最终运行结果：</span></p> 
<p align="left"><span style="color:teal"> <img src="http://my.csdn.net/uploads/201204/24/1335237733_4732.png" alt=""></span></p> 
<p align="left"><span style="color:teal">数据库建表语句：</span></p> 
<p align="left"><span style="color:#008080"></span></p> 
<pre name="code" class="sql">/* 
Navicat MySQL Data Transfer 
 
Source Server   : mysql 
Source Server Version : 50145 
Source Host   : localhost:3306 
Source Database  : springmvcdb 
 
Target Server Type : MYSQL 
Target Server Version : 50145 
File Encoding   : 65001 
 
Date: 2012-04-24 10:34:25 
*/ 
 
SET FOREIGN_KEY_CHECKS=0; 
-- ---------------------------- 
-- Table structure for `usermbo` 
-- ---------------------------- 
DROP TABLE IF EXISTS `usermbo`; 
CREATE TABLE `usermbo` ( 
 `USERID` int(11) NOT NULL DEFAULT '0', 
 `USERNAME` varchar(50) DEFAULT NULL, 
 `USERAGE` int(11) DEFAULT NULL, 
 PRIMARY KEY (`USERID`) 
) ENGINE=InnoDB DEFAULTCHARSET=utf8; 
 
-- ---------------------------- 
-- Records of usermbo 
-- ---------------------------- 
INSERT INTO `usermbo` VALUES('1', '李晓红', '25'); 
INSERT INTO `usermbo` VALUES('2', '柳梦璃', '27'); 
INSERT INTO `usermbo` VALUES('3', '韩菱纱', '26');</pre>