使用Servlet实现用户注册
1、用户注册页面代码
<%@ 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>Insert title here</title>
</head>
<body>
<form action="yhzhuce" method="post">
<table align="center" border="1" weight="200" height="200">
<tr align="center"><td>请填写注册信息</td></tr>
<tr><td>帐号：<input type="text" name="zh"></td></tr>
<tr><td>密码：<input type="text" name="mima"></td></tr>
<tr><td>姓名：<input type="text" name="xingming"></td></tr>
<tr><td>性别：<input type="text" name="sex"></td></tr>
<tr><td>年龄：<input type="text" name="age"></td></tr>
<tr><td>手机号码：<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接受并验证数据
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("注册成功！");
}
else
{
response.getWriter().write("请3秒后重新填写资料！");
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、运行结果
【1】输入有空时，运行结果
2、输入完整时，运行结果
