Java_Web_Examples/11/WebRoot/checkUserName.jsp at master · oldprogram/Java_Web_Examples

38 lines (36 loc) · 1.37 KB

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>

<jsp:useBean id="chStr" scope="page" class="com.tools.ChStr"/>

<jsp:useBean id="conn" scope="page" class="com.tools.ConnDB"/>

String username=chStr.chStr(request.getParameter("username"));

ResultSet rs=conn.executeQuery("select * from tb_member where username='"+username+"'");

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>检测用户名</title>

</head>

<body>

<tr>

</tr>

if(rs.next()){

<tr>

<td height="45" align="center"><%out.println("很报歉!<br><br>["+username+"]用户名已经被注册!");%></td>

</tr>

<%}else{%>

<tr>

<td height="56" align="center"><%out.println("祝贺您!<br><br>["+username+"]用户名没有被注册!");%></td>

</tr>

<%}%>

<tr>

</tr>

</table>

</body>

</html>

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