Servlet之输入交互-------------利用Servlet表单输出个人信息
1.编写主页index.jsp
为了统一编码，这里用utf-8编码
<%@ 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=utf-8">
<title>个人信息的输入</title>
</head>
<body>
<form method="post" action="Servlet/PersonInformation">
<p align="center">
<font size="5" color="blue"><b>请输入个人信息</b></font>
</p><br>
<p align="left">
输入姓名:<input type="text" name="name" size="30"><br>
输入年龄:<input type="text" name="age" szie="30"><br>
输入学号:<input type="text" name="stu_number" size=30><br>
<input type="submit" value="发送">
</p>
</form>
</body>
</html>
2.编写Servlet工程的PersonInformation类，作为初学者，java包的定义一切从简
package Servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class PersonInformation
*/
@WebServlet("/PersonInformation")
public class PersonInformation extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* Default constructor.
*/
public PersonInformation() {
// 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)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html; charset=utf-8");
request.setCharacterEncoding("utf-8");
String name=request.getParameter("name");
String age=request.getParameter("age");
String stu_number=request.getParameter("stu_number");
PrintWriter out=response.getWriter();
out.println("<html><head><title>个人信息</title></head><body>");
out.println("<h3>这是你的个人信息</h3><br>");
out.println("姓名:"+name+"<br>");
out.println("年龄:"+age+"<br>");
out.println("学号:"+stu_number+"<br>");
out.println("</body></html>");
out.close();
}
}
3.web.xml的配置，这里你得注意你的类与包之间的关系，以免搞死tomcat容器
<?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">
<display-name>testForm2</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>PersonInformation</servlet-name>
<servlet-class>Servlet.PersonInformation</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>PersonInformation</servlet-name>
<url-pattern>/Servlet/PersonInformation</url-pattern>
</servlet-mapping>
</web-app>
4.运行结果