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>
<%@ 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>