1.数据库新建一张表：Student_information，表中三个字段，name(nvarchar(50),null),sex(nvarchar(50),null),age(numeric(18,0),null)
2.先新建一个Main.jsp.
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action ="EmployeServlet" method="post">
<h1 align ="center" id ="biaotou">增加学生信息</h1>
<table align="center">
<tr>
<td>姓名:<td>
<td><input type="text" name="emplyname" value=""/></td>
<tr>
<tr>
<td>性别:</td>
<td><input type="radio" name="sex" value="男">男
<input type="radio" name="sex" value="女">女
</td>
</tr>
<tr>
<td>年龄:<td>
<td><input type="text" name="age" value=""/></td>
<tr>
<tr>
<td><td>
<td><button type="submit" value="submit">提交</button></td>
<tr>
</table>
</form>
</body>
</html>
3.新建一个Employ类，存放学生属性
package testjsp;
public class Employ {
private String name;
private String sex;
private int age;
public void setName(String name){
this.name=name;
}
public String getName(){
return this.name;
}
public void setSex(String sex){
this.sex=sex;
}
public String getSex(){
return this.sex;
}
public void setAge(int age){
this.age=age;
}
public int getAge(){
return this.age;
}
}
4.新建一个TestJsp类，获取数据，连接数据库，插入数据
package testjsp;
import java.io.IOException;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import test.EmployeServlet;
public class TestJsp {
public boolean addEmploy(Employ ee){
System.out.println(ee.getName());
System.out.println(ee.getSex());
System.out.println(ee.getAge());
String a=ee.getName();
String b=ee.getSex();
int c=ee.getAge();
System.out.println(a+b+c);
String URL="jdbc:sqlserver://localhost:1433;DatabaseName=TEST_CAL";
String USER="sa";
String PASSWORD="XXXXXX";
Connection conn=null;
PreparedStatement pstmt=null;
try{
//加载驱动程序
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
//获得数据库连接
conn=(Connection)DriverManager.getConnection(URL,USER,PASSWORD);
System.out.println(conn);
String sql="insert into Student_information (name,sex,age) values(?,?,?)";
pstmt=conn.prepareStatement(sql);
pstmt.setString(1,ee.getName());
pstmt.setString(2,ee.getSex());
pstmt.setInt(3, ee.getAge());
pstmt.execute();
}catch(ClassNotFoundException e){
e.printStackTrace();
}catch(SQLException e){
e.printStackTrace();
}
return true;
}
public static void main(String[] args) {
// TestJsp n=new TestJsp();
// n.addEmploy();
}
}
5.新建一个Servlet类
package test;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import testjsp.Employ;
import testjsp.TestJsp;
/**
* Servlet implementation class EmployeServlet
*/
@WebServlet("/EmployeServlet")
public class EmployeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public EmployeServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
//response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
// String name=new String(request.getParameter("emplyname").getBytes("iso-8859-1"),"utf-8");//搜到的答案，不知道怎么用
String name=request.getParameter("emplyname");
String sex=request.getParameter("sex");
String age=request.getParameter("age");
Employ em=new Employ();
em.setName(name);
em.setSex(sex);
em.setAge(Integer.parseInt(age));
System.out.println(name);
System.out.println(sex);
System.out.println(Integer.parseInt(age));
TestJsp te=new TestJsp();
te.addEmploy(em);
}
}
6.新建一个web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app>
<welcome-file-list>
<welcome-file>MainPage.jsp</welcome-file>
</welcome-file-list>
<servlet>
<!-- servlet名称，与servlet-mapping中的servlet-name必须一致 -->
<servlet-name>EmployeServlet</servlet-name>
<!--Servlet类的位置-->
<servlet-class>test.EmployeServlet</servlet-class>
</servlet>
<servlet-mapping>
<!-- servlet名称，与上面中的servlet-name必须一致 -->
<servlet-name>EmployeServlet</servlet-name>
<url-pattern>/EmployeServlet/</url-pattern>
</servlet-mapping>
</web-app>
时间： 2024-10-11 00:18:12