【笔记】SpringMVC系列框架 [ 1 ]

SpringMVC+C3P0+dbUtils实现增删改查

【web.xml】

<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">
  <display-name>display-name> 
  <welcome-file-list>
    <welcome-file>index.jspwelcome-file>
  welcome-file-list>

  
  <servlet>
    <servlet-name>springmvcservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    <init-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:springmvc.xmlparam-value>
    init-param>
    <load-on-startup>1load-on-startup>
  servlet>

  <servlet-mapping>
    <servlet-name>springmvcservlet-name>
    <url-pattern>*.actionurl-pattern>
  servlet-mapping>

  
    <filter>
        <filter-name>CharacterEncodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>UTF-8param-value>
        init-param>
    filter>   

    <filter-mapping>
        <filter-name>CharacterEncodingFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

web-app>

【springmvc.xml】

<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/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/mvc   
      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd      
      ">

      <context:component-scan base-package="com.athl" />

beans>

【c3p0-config.xml】

<c3p0-config>
    <default-config>
        <property name="jdbcUrl">jdbc:mysql://localhost:3306/athl_ajaxproperty>
        <property name="driverClass">com.mysql.jdbc.Driverproperty>
        <property name="user">rootproperty>
        <property name="password">rootproperty>
        <property name="initialPoolSize">3property>  
          
        <property name="maxIdleTime">30property>  
          
        <property name="maxPoolSize">20property>  
          
        <property name="minPoolSize">3property>  
          
        <property name="maxIdleTimeExcessConnections">15property>
    default-config>
c3p0-config>

【ConnectionUtil】

package com.athl.utils;

import org.apache.commons.dbutils.QueryRunner;

import com.mchange.v2.c3p0.ComboPooledDataSource;

public class ConnectionUtil {

    private static ComboPooledDataSource cpds = new ComboPooledDataSource();

    public static QueryRunner getQueryRunner(){
        return new QueryRunner(cpds);
    }

    public static void main(String[] args) {
        System.out.println(ConnectionUtil.getQueryRunner());
    }
}

【dao】

package com.athl.dao;

import java.sql.SQLException;
import java.util.List;

import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.springframework.stereotype.Component;

import com.athl.entity.Person;
import com.athl.utils.ConnectionUtil;

@Component(value="dao")
public class PersonDao {

    private QueryRunner qr= ConnectionUtil.getQueryRunner();

    /**
     * 添加
     * @param p
     * @throws SQLException
     */
    public void add(Person p) throws SQLException{
        String sql="insert into person(name,age) values(?,?)";
        qr.update(sql, p.getName(),p.getAge());
    }

    /**
     * 修改
     * @param p
     * @throws SQLException
     */
    public void update(Person p) throws SQLException{
        String sql="update person set name=?,age=? where id=?";
        qr.update(sql, p.getName(),p.getAge(),p.getId());
    }

    /**
     * 删除
     * @param id
     * @throws SQLException
     */
    public void delete(int id) throws SQLException{
        String sql="delete from person where id=?";
        qr.update(sql,id);
    }

    /**
     * 查询所有
     * @return
     * @throws SQLException
     */
    public List query() throws SQLException{
        String sql="select * from person";
        return qr.query(sql, new BeanListHandler(Person.class));
    }

    /**
     * 根据id查询
     * @param id
     * @return
     * @throws SQLException
     */
    public Person queryById(int id) throws SQLException{
        String sql="select * from person where id=?";
        return qr.query(sql, new BeanHandler(Person.class),id);
    }

    /**
     * 模糊查询
     * @param search
     * @return
     * @throws SQLException
     */
    public List queryLike(String search) throws SQLException{
        String sql="select * from person where name like ? or age like ?";
        return qr.query(sql, new BeanListHandler(Person.class),"%"+search+"%","%"+search+"%");
    }


}

【PersonController】

package com.athl.controller;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.athl.dao.PersonDao;
import com.athl.entity.Person;

@Controller
public class PersonController {

    @Resource(name="dao")
    private PersonDao dao;

    @RequestMapping(value="/getAll.action")
    public String getAll(Model m) throws Exception{
        m.addAttribute("list", dao.query());
        return "/WEB-INF/jsp/list.jsp";
    }

    @RequestMapping(value="/add.action")
    public String add(Person p,Model m) throws Exception{
        dao.add(p);
        return "redirect:/getAll.action";
    }

    @RequestMapping(value="/update.action")
    public String update(Person p,Model m) throws Exception{
        dao.update(p);
        return "redirect:/getAll.action";
    }

    @RequestMapping(value="/delete.action")
    public String delete(Person p,Model m) throws Exception{
        dao.delete(p.getId());
        return "redirect:/getAll.action";
    }

    @RequestMapping(value="/queryLike.action")
    public String getAll(Model m,String search) throws Exception{
        m.addAttribute("list", dao.queryLike(search));
        return "/WEB-INF/jsp/list.jsp";
    }

    @RequestMapping(value="/queryById.action")
    public String queryById(Model m,int id) throws Exception{
        m.addAttribute("p", dao.queryById(id));
        return "/WEB-INF/jsp/update.jsp";
    }

}

源码下载：http://download.csdn.net/detail/jul_11th/9755763

谢谢支持！