📄 userlogin.jsp
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<%@ page contentType="text/html;charset=GB2312" %><%@ page import="Login" %><%! //处理字符串的方法: public String codeString(String s) { String str=s; try{byte b[]=str.getBytes("ISO-8859-1"); str=new String(b); return str; } catch(Exception e) { return str; } }%><HTML><BODY ><Font size=3><center><%@ include file="head.txt" %></center><Font size=5><center><%String string=response.encodeURL("userLogin.jsp");String a1="输入用户名和密码:",a2="登录名称",a3="输入密码",a4="提交";%><P><%=a1%><FORM action="<%=string%>" Method="post"><BR><%=a2%><Input type=text name="logname"><BR><%=a3%><Input type=password name="password"><BR><Input type=submit name="g" value="<%=a4%>"></Form><jsp:useBean id="login" class="Login" scope="session" ></jsp:useBean> <% //提交信息后,验证信息是否正确: String message="", logname="", password=""; if(!(session.isNew())) {logname=request.getParameter("logname"); if(logname==null) {logname=""; } logname=codeString(logname); password=request.getParameter("password"); if(password==null) {password=""; } password=codeString(password); } %> <% if(!(logname.equals(""))) { %> <jsp:setProperty name= "login" property="logname" value="<%=logname%>" /> <jsp:setProperty name= "login" property="password" value="<%=password%>" /> <% message=login.getMessage(); if(message==null) {message=""; } } %> <% if(!(session.isNew())) { if(message.equals("ok")) { String str=response.encodeURL("buybook.jsp"); response.sendRedirect(str); } else {out.print(message); } } %></center></Body></HTML>
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