crud springmvc

实体类：Student.java 

package demo.entity;

public class Student
{
    private int id;

    private String name;

    private String sex;

    private String address;

    public int getId()
    {
        return id;
    }

    public void setId(int id)
    {
        this.id = id;
    }

    public String getName()
    {
        return name;
    }

    public void setName(String name)
    {
        this.name = name;
    }

    public String getSex()
    {
        return sex;
    }

    public void setSex(String sex)
    {
        this.sex = sex;
    }

    public String getAddress()
    {
        return address;
    }

    public void setAddress(String address)
    {
        this.address = address;
    }

}

IStudentDao.java 

package demo.dao;

import java.util.List;

import demo.entity.Student;

public interface IStudentDao
{
    public void insert(Student stu);

    public void delete(int id);

    public void update(Student stu);

    public List<Student> findAll();

    public Student findById(int id);
}

StudentDaoImpl.java 

package demo.dao.impl;

import java.util.List;
import java.util.Map;

import javax.annotation.Resource;

import org.springframework.jdbc.core.BeanPropertyRowMapper;

import demo.dao.IStudentDao;
import demo.entity.Student;

public class StudentDaoImpl implements IStudentDao
{
    public static final String INSERT = "insert into student(name,sex,address) values(?,?,?)";

    public static final String DELETE = "delete from student where id=?";

    public static final String UPDATE = "update student set name=?,sex=?,address=? where id=?";

    public static final String FINDALL = "select * from student";

    public static final String FINDBYID = "select * from student where id=?";

    private org.springframework.jdbc.core.simple.SimpleJdbcTemplate simpleJdbcTemplate;

    @Resource
    public void setSimpleJdbcTemplate(
            org.springframework.jdbc.core.simple.SimpleJdbcTemplate simpleJdbcTemplate)
    {
        this.simpleJdbcTemplate = simpleJdbcTemplate;
    }

    public void delete(int id)
    {
        // TODO Auto-generated method stub
        this.simpleJdbcTemplate.update(DELETE, id);
    }

    @SuppressWarnings("deprecation")
    public List<Student> findAll()
    {
        // TODO Auto-generated method stub
        List<Student> stuList = this.simpleJdbcTemplate.query(FINDALL,new BeanPropertyRowMapper<Student>(Student.class));
        return stuList;
    }

    public Student findById(int id)
    {
        // TODO Auto-generated method stub
        Map<String, Object> stuMap = this.simpleJdbcTemplate.queryForMap(FINDBYID, id);
        Student stu = new Student();
        stu.setId(id);
        stu.setName(stuMap.get("name").toString());
        stu.setSex(stuMap.get("sex").toString());
        stu.setAddress(stuMap.get("address").toString());
        return stu;
    }

    public void insert(Student stu)
    {
        // TODO Auto-generated method stub
        this.simpleJdbcTemplate.update(INSERT, stu.getName(),stu.getSex(),stu.getAddress());
    }

    public void update(Student stu)
    {
        // TODO Auto-generated method stub
        this.simpleJdbcTemplate.update(UPDATE, stu.getName(),stu.getSex(),stu.getAddress(),stu.getId());
    }

}

IStudentService.java 

package demo.service;

import java.util.List;

import demo.entity.Student;

public interface IStudentService
{
    public void insert(Student stu);

    public void delete(int id);

    public void update(Student stu);

    public List<Student> findAll();

    public Student findById(int id);
}

StudentServiceImpl.java 

package demo.service.impl;

import java.util.List;

import javax.annotation.Resource;

import demo.dao.IStudentDao;
import demo.entity.Student;
import demo.service.IStudentService;

public class StudentServiceImpl implements IStudentService
{
    private IStudentDao stuDao;
    @Resource
    public void setStuDao(IStudentDao stuDao)
    {
        this.stuDao = stuDao;
    }

    public void delete(int id)
    {
        // TODO Auto-generated method stub
        stuDao.delete(id);
    }

    public List<Student> findAll()
    {
        // TODO Auto-generated method stub
        return stuDao.findAll();
    }

    public Student findById(int id)
    {
        // TODO Auto-generated method stub
        return stuDao.findById(id);
    }

    public void insert(Student stu)
    {
        // TODO Auto-generated method stub
        stuDao.insert(stu);
    }

    public void update(Student stu)
    {
        // TODO Auto-generated method stub
        stuDao.update(stu);
    }

}

StudentController.java 

package demo.controller;

import java.io.UnsupportedEncodingException;
import java.util.List;

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

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
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 demo.entity.Student;
import demo.service.IStudentService;

@Controller
@RequestMapping("/student")
public class StudentController
{
    private IStudentService stuService;

    @Resource
    public void setStuService(IStudentService stuService)
    {
        this.stuService = stuService;
    }

    /**
     * 全部
     */
    @RequestMapping(value = "/all", method = RequestMethod.GET)
    public ModelAndView findAll(HttpServletRequest request,
            HttpServletResponse response, ModelMap modelMap)
    {
        List<Student> stuList = stuService.findAll();
        modelMap.put("stuList", stuList);
        return new ModelAndView("allStudent", modelMap);
    }

    /**
     * 删除
     */
    @RequestMapping(value = "/delete/{id}", method = RequestMethod.GET)
    public String delete(HttpServletRequest request,
            HttpServletResponse response, @PathVariable("id")
            int id, ModelMap modelMap)
    {
        stuService.delete(id);
        return "redirect:/student/all.do";
    }

    /**
     * 添加
     */
    @RequestMapping(value = "/add", method = RequestMethod.POST)
    public String addStudent(HttpServletRequest request,
            HttpServletResponse response, Student stu)
            throws UnsupportedEncodingException
    {
        stuService.insert(stu);
        return "redirect:/student/all.do";
    }

    /**
     * pre4Update
     */
    @RequestMapping("/pre4Update/{id}")
    public ModelAndView pre4Update(HttpServletRequest request,
            HttpServletResponse response, @PathVariable("id")
            int id, ModelMap modelMap)
    {
        Student stu = stuService.findById(id);
        modelMap.put("stu", stu);
        return new ModelAndView("updateStudent", modelMap);
    }

    /**
     * updateStudent
     */
    @RequestMapping("/updateStudent")
    public String updateStudent(HttpServletRequest request,
            HttpServletResponse response, Student stu)
    {
        stuService.update(stu);
        return "redirect:/student/all.do";
    }

    /**
     * 跳转：用于跳转的过度
     */
    @RequestMapping(value = "/redir/{url}", method = RequestMethod.GET)
    public String sendRedirect(HttpServletRequest request,
            HttpServletResponse response, @PathVariable("url")
            String url)
    {
        return url;
    }
}

================================================ 
配置文件： 
jdbc.properties 

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/demo?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

servlet.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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    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="demo.controller"></context:component-scan>
    <!-- 内部资源视图解析器 (用于支持Servlet、JSP视图解析) -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>


    <!-- 数据库连接配置文件路径及读取方式 -->
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
            </list>
        </property>
    </bean>

    <!-- 数据库连接池 -->
    <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}" />
    </bean>

    <bean id="simpleJdbcTemplate"
        class="org.springframework.jdbc.core.simple.SimpleJdbcTemplate">
        <constructor-arg><ref bean="dataSource"/></constructor-arg>
    </bean>
    <!-- spring JDBC -->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource" />
    </bean>

</beans>

applicationContext-dao.xml 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" " http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
    <bean id="stuDao" class="demo.dao.impl.StudentDaoImpl">
        <property name="simpleJdbcTemplate"
            ref="simpleJdbcTemplate" />
    </bean>
</beans>

applicationContext-service.xml 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" " http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
    <bean id="stuService" class="demo.service.impl.StudentServiceImpl">
        <property name="stuDao" ref="stuDao"/>
    </bean>
</beans>

web.xml 

<?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">
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <servlet>
        <servlet-name>demo2</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/classes/spring/*.xml</param-value>
        </init-param>

        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>demo2</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    <!-- 处理乱码 -->
    <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>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

================== 
allStudent.jsp 

<%@ page language="java" pageEncoding="utf-8"%>
<%@ taglib uri="http://java.sun.com/jstl/core_rt" prefix="e"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <head>
        <title>Student列表</title>
    </head>
    <table width="50%" border="1">
        <tr>
            <td>id</td>
            <td>姓名</td>
            <td>性别</td>
            <td>地址</td>
            <td>操作</td>
        </tr>
        <e:forEach items="${requestScope.stuList}" var="stu">
            <tr>
                <td>${stu.id}</td>
                <td>${stu.name}</td>
                <td>${stu.sex}</td>
                <td>${stu.address}</td>
                <td><a href="pre4Update/${stu.id}.do">修改</a>||<a href="delete/${stu.id}/${stu.name}.do">删除</a></td>
            </tr>
        </e:forEach>
    </table>
    <a href="redir/addStudent.do">添加</a>
    <body>
    </body>
</html>