Spring+Spring MVC+JDBC增删改查小例子

此篇文章，也是作为入门时的一个小练习例子，使用的是JDBC完成的增删改查，相对比较简单一点，只要Spirng MVC的控制器部分熟悉就可以拿下了，另外现在练手是基于xml的方式配置实体类的，增删改查是分别对应一个控制器，实际上是完全可以放在一个控制器里面实现的，像Struts一样，这个后面散仙会基于注解的方式给出例子。


web.xml里面的配置：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 
	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_3_0.xsd">
  <display-name></display-name>	
  
  <servlet>
  <servlet-name>qin</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
 </servlet>
 <!-- 配置拦截  action为后缀名的请求 -->
 <servlet-mapping>
  <servlet-name>qin</servlet-name>
  <url-pattern>/</url-pattern>
 </servlet-mapping>
 
 <filter>
        <filter-name>CharacterEncodingFilter</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>    
        <init-param>    
            <param-name>forceEncoding</param-name>    
            <param-value>true</param-value>    
        </init-param>   
    </filter>
    
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

     
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

控制器的servlet里面的配置

<?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/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">

    <!-- HandlerMapping -->
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
    
    <!-- HandlerAdapter -->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
 
<property name="mappings">
 
<props>
 
<prop key="save.do">save</prop>
<prop key="myadd">add</prop>
 
</props>
 
</property>
 
</bean>
    <!-- ViewResolver -->
    <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>
    
    <!-- 处理器 -->
    <bean name="/hellow" class="com.qin.controller.HellowController"/>
    
    <bean name="/indexAll" class="com.qin.controller.QueryAllUserController"></bean>
    
    <bean name="/delete" class="com.qin.controller.DeleteController"></bean>
  
    <bean name="/update" class="com.qin.controller.UpdateController"></bean>
   
    <bean id="save"   class="com.qin.controller.SaveController"></bean>
    <bean id="add"   class="com.qin.controller.AddController"></bean>
  
</beans>

查询控制器的代码：

package com.qin.controller;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import com.qin.dao.UserInfo;
import com.qin.dao.impl.UserModelImpl;
/**
 * 检索全部的控制器
 * 
 * **/
public class QueryAllUserController extends AbstractController {

	  public  UserInfo dao=new UserModelImpl();
	
	@Override
	protected ModelAndView handleRequestInternal(HttpServletRequest arg0,
			HttpServletResponse arg1) throws Exception {
		 ModelAndView mv=new ModelAndView();
		// mv.addObject("ulist", dao.getAllUser());
			arg0.setCharacterEncoding("UTF-8");
			arg1.setHeader("content-type", "text/html;charset=UTF-8");
		   Map<String, Object> maps = new HashMap<String, Object>();   //保存用户信息集合   maps.put("userInfoList", userInfoList);
		 maps.put("clist", dao.getAllUser());
		   mv=new ModelAndView("/indexAll", maps);
		 return mv;
		 
	}
}

其他部分的代码，就不贴了，后面会给你完整的下载包。