使用Servlet实现用户注册
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使用Servlet实现用户注册
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1、用戶注冊頁面代碼
<%@ 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>Insert title here</title></head><body><form action="yhzhuce" method="post"><table align="center" border="1" weight="200" height="200"><tr align="center"><td>請填寫注冊信息</td></tr> <tr><td>帳號：<input type="text" name="zh"></td></tr> <tr><td>密碼：<input type="text" name="mima"></td></tr> <tr><td>姓名：<input type="text" name="xingming"></td></tr><tr><td>性別：<input type="text" name="sex"></td></tr><tr><td>年齡：<input type="text" name="age"></td></tr><tr><td>手機號碼：<input type="text" name="num"></td></tr><tr align="center"><td><input type="submit" value="提交信息"></td></tr></table></form></body></html>?
2、Servlet接受并驗證數據
package lianxi;import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;public class yhzhuce extends HttpServlet {private static final long serialVersionUID = 1L;public yhzhuce() {super();}protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {response.setContentType("text/html");response.setCharacterEncoding("UTF-8");String z=request.getParameter("zh");String m=request.getParameter("mima");String nm=request.getParameter("xingming");String s=request.getParameter("sex");String a=request.getParameter("age");String n=request.getParameter("num");if(nm!=""&&s!=""&&a!=""&&n!=""&&z!=""&&m!=""){response.getWriter().write("注冊成功！");}else{response.getWriter().write("請3秒后重新填寫資料！");response.setHeader("refresh", "3;URL=zhuceye.jsp");}//response.getWriter().append("Served at: ").append(request.getContextPath());}protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {doGet(request, response);}}3、運行結果
【1】輸入有空時，運行結果
2、輸入完整時，運行結果
?
轉載于:https://www.cnblogs.com/jakeasd/p/5632952.html
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