標籤：jsp表單驗證執行個體
1、表單填寫頁面<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%><!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>Form Table</title></head><body><form action="TestServlet" method="post"><table border="2" cellspaceing="1" cellpadding="3" bgcolor="#F00000"><th colspan="2" align="center">Sumbmit Table</th><tr><td>username</td><td><input type="text" name="username"></td></tr><tr><td>sex</td><td>male<input type="radio" name="sex" value="male"> female<input type="radio" name="sex" value="female"></td></tr><tr><td>address</td><td><input type="text" name="address"></td></tr><tr><td>likes</td><td>sing<input type="checkbox" name="likes" value="sing">dance<input type="checkbox" name="likes" value="dance">game<input type="checkbox" name="likes" value="game"></td></tr><tr><td> </td><td><input type="submit" value="Submit"><input type="reset" value="Reset"></td></tr></table></form></body></html>2、Servlet驗證
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 TestServlet */@WebServlet(name="testservlet",urlPatterns={"/TestServlet"})public class TestServlet extends HttpServlet {private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public TestServlet() { 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 stubdoPost(request, response);}/** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {// TODO Auto-generated method stubString name=request.getParameter("username");String sex=request.getParameter("sex");String add=request.getParameter("address");String[] likes0=request.getParameterValues("likes");String likes="";for(int i=0;i<likes0.length;i++){likes+=likes0[i]+" ";}request.setAttribute("name", name);request.setAttribute("sex", sex);request.setAttribute("address", add);request.setAttribute("likes", likes);request.getRequestDispatcher("result.jsp").forward(request,response);PrintWriter out=response.getWriter();out.println(name);out.println(sex);out.println(add);out.println(likes);}}3、驗證結果輸出
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%><!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>result</title></head><body><table border="2" cellspaceing="1" cellpadding="3" bgcolor="#00FF00"><th colspan="2" align="center">Result Table</th><tr><td>username</td><td><%=request.getAttribute("name") %></td></tr><tr><td>sex</td><td><%=request.getAttribute("sex") %></td></tr><tr><td>address</td><td><%=request.getAttribute("address") %></td></tr><tr><td>likes</td><td><%=request.getAttribute("likes") %></td></tr></table></body></html>
JSP表單驗證執行個體
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