最近看老罗视频，做了一个简单的用户注册系统。用户通过网页(JSP)输入用户名、真名和密码，Servlet接收后通过JDBC将信息保存到MySQL中。虽然是个简单的不能再简单的东西，但麻雀虽小，五脏俱全，在此做一归纳和整理。下面先上源码:
一、index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head><title>后台管理系统</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!–<link rel="stylesheet" type="text/css" href="styles.css">–> </head><body><h1 align=center>欢迎您的注册</h1><br><font size="6"><a href="<%=path%>/pass.jsp"><font color="#0000ff">点击注册 </font></a></font> </body></html>它的运行结果如下:
二、点击上面的“点击注册”就跳转到了pass.jsp：
<%@ page language="java" import="java.util.*" pageEncoding="utf-8" %><%String path = request.getContextPath();%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>后台管理系统</title><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><style type="text/css">.neon {FILTER: glow(color = #002E60, strength= 3)}DIV {WIDTH: 70px}BODY {MARGIN: 0px}BODY {MARGIN-TOP: 0px;SCROLLBAR-FACE-COLOR: #005fc5;FONT-SIZE: 12px;BACKGROUND: #ffffff;SCROLLBAR-HIGHLIGHT-COLOR: #799ae1;SCROLLBAR-SHADOW-COLOR: #799ae1;SCROLLBAR-3DLIGHT-COLOR: #005fc5;SCROLLBAR-ARROW-COLOR: #ffffff;SCROLLBAR-TRACK-COLOR: #aabfec;SCROLLBAR-DARKSHADOW-COLOR: #799ae1}</STYLE><LINK href="<%=path%>/images/duan_1.css" type=text/css rel=stylesheet><META content="MSHTML 6.00.2800.1106" name=GENERATOR><style type="text/css">.style6 {COLOR: #0000ff}.STYLE7 {COLOR: #003366;font-size: 12px;}</style><script type="text/javascript">function dosubmit() {var th = document.form1;if (th.username.value == "") {alert("用户名不能为空");th.username.focus();return;}if (th.realname.value == "") {alert("姓名 不能为空");th.realname.focus();return;}if (th.pswd.value == "") {alert("密码不能为空");th.pswd.focus();return;}th.action="<%=path%>/servlet/RegisterAction"th.submit();}</script></head><body bgColor=#ffffffonload="MM_preloadImages(‘<%=path%>/images/ok_2.jpg’, ‘<%=path%>/images/fh_2.jpg’)"><form action="" name="form1" method="post"><table height=470 cellSpacing=0 cellPadding=0 width=580 aligen=centerborder=0><tbody><tr><td colSpan=3 height=9 /></tr><tr><td vAlign=top width=8 background="<%=path%>/images/dhpddw.gif"rowSpan=2><!– DWLayoutEmptyCell –> </td><td background="<%=path%>/images/h-1.gif" height=9></td><td width=9 height=9><IMG height=9src="<%=path%>/images/jiao.gif" width=9></td></tr><tr><td vAlign=top align=right width=743 height=452><table cellSpacing=0 cellPadding=0 width=556 border=0><!– DWLayoutTable –><tbody><tr><td vAligh=bottom width=548 height=27><IMG height=10src="<%=path%>/images/jt2.gif" width=10> <spanclass="1bt">用户注册</span></td><td width=8 rowSpan=3></td></tr><tr><td bgColor="#ffffff" height=22></td></tr><tr><td class=unnamed1 vAligh=top height=9><table width="99%" border=0 cellPadding=4 cellSpacing=1bgColor="#0867b3"><tbody><TR bgColor=#ffffff height=20><TD width=14% noWrap class="STYLE7">用户名</TD><TD width=24% valign="top" noWrap><INPUT class=text2maxLength=20 size=18 name="username" minLength="1"></TD><TD width=62% noWrap><span class="STYLE7">必须填写！</span></TD></TR><TR bgColor=#ffffff height=20><TD height="4" noWrap><span class="STYLE7">姓名</span></TD><TD height="4" valign="top" noWrap><INPUT class=text2maxLength=20 size=18 name="realname" minLength="1"></TD><TD height="4" noWrap><span class="STYLE7">必须填写！</span></TD></TR><TR bgColor=#ffffff height=20><TD height="2" noWrap><span class="STYLE7">密码 </span></TD><TD height="2" valign="top" noWrap><INPUTtype="password" class=text2 maxLength=20 size=18name="pswd" minLength="1"></TD><TD height="2" noWrap><span class="STYLE7">必填项</span></TD></TR></tbody></table> <br></td></tr><TR><TD height=20 align="center"><ahref="javascript:dosubmit();"><imgsrc="<%=path%>/images/ok_1.jpg" name="Image8" width="60"height="22" border="0"> </a> <ahref="<%=path%>/index.jsp"><imgsrc="<%=path%>/images/fh_1.jpg" name="Image9" width="60"height="22" border="0"> </a></TD><TD></TD></TR></tbody></table></td><TD width=9 background="<%=path%>/images/s-1.gif"></TD></tr></tbody></table></form></body></html>运行效果如下:家门前的那条小路，到底通向了什么样的远方呢？
