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username總是空

//用戶

package?po;

public?class?Users?{
????private?String?username;
????private?String?password;

????public?Users()?{
????}

????public?String?getUsername()?{
????????return?username;
????}

????public?void?setUesername(String?username)?{
????????this.username?=?username;
????}

????public?String?getPassword()?{
????????return?password;
????}

????public?void?setPassword(String?password)?{
????????this.password?=?password;
????}
}

方法

package?dao;

import?po.Users;

public?class?UserDAO?{
????public?boolean?usersLogIn(Users?u?){

????????if?("admin".equals(u.getUsername())?&&"admin".equals(u.getPassword()))
????????{
????????????return?true;

????????}
????????else
????????????{
????????????return?false;
????????}
????}
}

登錄

<%@?page?contentType="text/html;charset=UTF-8"?language="java"?%>
<html>
<head>
????<title>用戶登錄</title>
</head>
<body>
<h1>用戶登錄</h1>
<hr>
<form?action="dolog.jsp"?name="loginForm"?method="post">
<table>
????<tr>
????????<td>用戶名</td>
????????<td><input?type="text"?name="username"/></td>
????</tr>
????<tr>
????????<td>密碼:</td>
????????<td?><input?type="password"?name="password"/></td>
????</tr>
????<tr>
????????<td?colspan="2"><input?type="submit"?value="登錄"></td>
????</tr>
</table>
</form>

</body>
</html>

處理

<%@?page?contentType="text/html;charset=UTF-8"?language="java"?%>
<jsp:useBean?id="loginUser"?class="po.Users"?scope="page"></jsp:useBean>
<jsp:useBean?id="userDAO"?class="dao.UserDAO"?scope="page"></jsp:useBean>
<jsp:setProperty?name="loginUser"?property="*"></jsp:setProperty>
<%request.setCharacterEncoding("utf-8");%>
<%
????String?path=request.getContextPath();
????String?basePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort();
?if?(userDAO.usersLogIn(loginUser)){
????session.setAttribute("loginUser",loginUser.getUsername());
????request.getRequestDispatcher("loginSuccess.jsp").forward(request,response);
}
else?{
????response.sendRedirect("log_failure.jsp");
}%>

https://img1.sycdn.imooc.com//5c99eb1d000193be02790135.jpg

正在回答

2 回答

還有就是建議你使用idea編譯器,沒有用到的變量和方法會用虛線標(biāo)識出來,如果你整個項目寫完,發(fā)現(xiàn)還有虛線說明那個變量或方法始終都沒用過

0 回復(fù) 有任何疑惑可以回復(fù)我~

https://img1.sycdn.imooc.com//5c9b4e5a00012ec204890097.jpg

是你自己手寫的吧!,不是可以直接生成的說...

0 回復(fù) 有任何疑惑可以回復(fù)我~

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