使用SpringMVC进行数据的传送，数据来自mysql数据库 (1)没有使用hibernate

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcherServlet</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>
</web-app>

<param-value>classpath:springmvc.xml</param-value>

<param-value>/WEB-INF/springmvc.xml</param-value>

package com.springmvc.domain;

public class Student {
private Integer id;
private String name;
private String sex;
private Integer age;
private String address;
public Student(){

}
public Student(Integer id, String name, String sex, Integer age, String address) {
super();
this.id = id;
this.name = name;
this.sex = sex;
this.age = age;
this.address = address;
}
public Integer getId() {
return id;
}
public void setId(Integer 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 Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}

}

package com.springmvc.service;

import java.util.List;

import com.springmvc.domain.Student;

public interface StudentService {
List<Student> getStudents();
void add(Student student);
void udpate(Student student);
void delete(String name);
Student get(String name);
}

package com.springmvc.service;

import java.awt.print.Book;
import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Service;

import com.springmvc.domain.Jdbc;
import com.springmvc.domain.Student;
@Service
public class studentImpl implements StudentService{
private List<Student> students;
public studentImpl(){
students = new ArrayList<Student>();
}

public List<Student> getStudents() {
// TODO 自动生成的方法存根
Jdbc a = new Jdbc();
students = a.getAllStudents();
return students;
}

public void add(Student student) {
Jdbc a = new Jdbc();
a.insert(student);

}

public void udpate(Student student) {
Jdbc a = new Jdbc();
a.update(student);

}

public void delete(String name) {
Jdbc a = new Jdbc();
a.deleteStudent(name);
}

public Student get(String name) {
Jdbc a = new Jdbc();
return a.getStudent(name);
}

}

package com.springmvc.domain;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.sql.ResultSet;
import java.sql.SQLException;
public class Jdbc {
private Connection con;
private Statement statement;
private ResultSet rest;
public Jdbc(){
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8";
String username = "root";
String password = "123456";
try{
Class.forName(driver);
con =DriverManager.getConnection(url, username, password);
statement = con.createStatement();
System.out.println("成功连接数据库了，开心得一匹！");
}catch(ClassNotFoundException e){
e.printStackTrace();
}catch(SQLException e){
e.printStackTrace();
}
}
//从数据库中获取值，转换成Student类型
public List<Student> getAllStudents(){
String sql = "select * from information";
List<Student> students = new ArrayList<Student>();
try{
rest = statement.executeQuery(sql);
while(rest.next()){
int id = rest.getInt(1);
String name = rest.getString(2);
String sex = rest.getString(3);
int age = rest.getInt(4);
String address = rest.getString(5);
students.add(new Student(id,name,sex,age,address));
}

con.close();
statement.close();
rest.close();
return students;
}catch(SQLException e){
e.printStackTrace();
}
return students;
}

//修改数据库中的数据
public boolean update(Student student){
boolean zhuanhuan =false;
String sql ="update information set sex=\""+student.getSex()
+"\",age="+student.getAge()
+",address=\""
+student.getAddress()+"\" where name=\""+
student.getName()+"\"";
try{
int a = statement.executeUpdate(sql);
zhuanhuan = true;
con.close();
statement.close();
return zhuanhuan;
}catch(SQLException e){
e.printStackTrace();
}
return zhuanhuan;
}
//获取指定的某个数据
public Student getStudent(String name){
String sql = "select * from information where name=\""+name+"\"";
Student student = null;
try{
rest = statement.executeQuery(sql);
while(rest.next()){
int id = rest.getInt(1);
String username = rest.getString(2);
String sex = rest.getString(3);
int age = rest.getInt(4);
String address = rest.getString(5);
student = new Student(id,username,sex,age,address);
}

con.close();
statement.close();
rest.close();
return student;
}catch(SQLException e){
e.printStackTrace();
}
return student;
}
//添加数据的函数
public boolean insert(Student student){
boolean Toadd = false;
String sql ="insert into information(id,name,sex,age,address) values("+
student.getId()+",\""
+student.getName()+"\",\""
+student.getSex()+"\","
+student.getAge()+",\""
+student.getAddress()+"\")";
try{
int a = statement.executeUpdate(sql);
Toadd = true;
con.close();
statement.close();
return Toadd;

}catch(SQLException e){
e.printStackTrace();
}
return Toadd;
}
//删除操作根据主键name删除
public boolean deleteStudent(String name){
boolean delete = false;
String sql = "delete from information where name=\""+name+"\"";
try{
int a = statement.executeUpdate(sql);
delete = true;
return delete;
}catch(SQLException e){
e.printStackTrace();
}
return delete;
}

}

package com.springmvc.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
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 com.springmvc.domain.Student;
import com.springmvc.service.StudentService;

@Controller
public class StudentController {
@Autowired
public StudentService studentservice;
@RequestMapping("/student_add")
public String addStudent(Model model){
final String [] sexs = {"Women","Man"};
model.addAttribute("sexs",sexs);
model.addAttribute("student",new Student());
return "addForm";
}
@RequestMapping("/student_edit/{name}")
public String edit(Model model,@PathVariable String name){
final String [] sexs = {"Women","Man"};
model.addAttribute("sexs",sexs);
Student student = studentservice.get(name);
System.out.println(student.toString());
model.addAttribute("student",student);
return "editForm";
}
@RequestMapping("/student_save")
public String saveStudent(@ModelAttribute Student student){
studentservice.add(student);
return "redirect:/student_list";
}

@RequestMapping(value="/student_update")
public String updateSuruder(@ModelAttribute Student student){
System.out.println(student.toString());
studentservice.udpate(student);
return "redirect:/student_list";
}

@RequestMapping("/student_delete/{name}")
public String deleteStudent(ModelAndView model,@PathVariable String name){
List<Student> students = studentservice.getStudents();
model.addObject("students",students);
model.addObject("student",new Student());
studentservice.delete(name);
return "redirect:/student_list";
}
@RequestMapping("/student_list")
public String liststudent(Model model){
List<Student> students = studentservice.getStudents();
model.addAttribute("students",students);
return "listForm";
}
}

<?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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <context:component-scan base-package="com.springmvc.controller"></context:component-scan>
<context:component-scan base-package="com.springmvc.service"></context:component-scan>
<bean id="" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>

<%@ page language="java" pageEncoding="GB18030"%>
<%@ page contentType="text/html;charset=GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib uri="http://java.sun.com/jsp/jstl/core"  prefix="c"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<div>
<table>
<tr>
<td>id</td>
<td>name</td>
<td>sex</td>
<td>age</td>
<td>address</td>
<td>编辑</td>
<td>删除</td>
</tr>
<c:forEach items="${students }" var="student">
<tr>
<td>${student.id }</td>
<td>${student.name }</td>
<td>${student.sex }</td>
<td>${student.age }</td>
<td>${student.address }</td>
<td><a href="student_edit/${student.name }">Edit</a></td>
<td><a href="student_delete/${student.name }">Delete</a></td>
</tr>

</c:forEach>
<a href="student_add">Student add</a>
</table>

</div>
</body>
</html>

<%@ page language="java" pageEncoding="GB18030"%>
<%@ page contentType="text/html;charset=GB18030"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE HTML>
<html>
<head>
<title>编辑页面</title>
</head>
<body>
<div>
<form:form commanndName="student" modelAttribute="student"  action="http://localhost:8080/fivespringmvclianxi/student_update" method="post">
<fieldset>
<legend>Edit a book</legend>
<p>
<label for="id">Id: </label>
<form:input id="id" path="id"/>
</p>
<p>
<form:hidden path="name"/>
</p>
<p>
<label for="sex">Sex: </label>
<form:select   path="sex" items="${sexs }">

</form:select>
</p>
<p>
<label for="age">Age: </label>
<form:input id="age" path="age"/>
</p>
<p>
<label for="address">Address: </label>
<form:input id="address" path="address"/>
</p>

<p>
<input id="reset" type="reset" tabindex="4">
<input id="submit" type="submit" tabindex="5"
value="update Student">
</p>
</fieldset>
</form:form>
</div>
</body>
</html>

<%@ page language="java" pageEncoding="GB18030"%>
<%@ page contentType="text/html;charset=GB18030"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE HTML>
<html>
<head>
<title>添加页面</title>
</head>
<body>
<div >
<form:form modelAttribute="student" action="student_save" method="post">
<fieldset>
<legend>Add a book</legend>
<p>
<label for="id">Id: </label>
<form:input id="id" path="id"/>
</p>
<p>
<label for="name">Name: </label>
<form:input path="name"/>
</p>
<p>
<label for="sex">Sex: </label>
<form:select   path="sex" items="${sexs }">

</form:select>
</p>
<p>
<label for="age">Age: </label>
<form:input id="age" path="age"/>
</p>
<p>
<label for="address">Address: </label>
<form:input id="address" path="address"/>
</p>

<p >
<input id="reset" type="reset" tabindex="4">
<input id="submit" type="submit" tabindex="5"
value="Add Student">
</p>
</fieldset>
</form:form>
</div>
</body>
</html>