為什么運行不了？
<%@ page language="java" import="java.util.*" contentType="text/html; charset=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>
? ? <base href="<%=basePath%>">
? ??
? ? <title>My JSP 'index.jsp' starting page</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>
? ?<div>?
? ?<form action="login.jsp" method="post">
? ?<label >用戶名</label>
? ?<input name="username" value="">
? ?<label>密碼</label>
? ?<input type="password" name="password" value="">
? ?<input type="submit" class="login" value="提交">
? ?
? ?</form>
? ?</div>
? </body>
</html>
<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String password="";
String username="";
request.setCharacterEncoding("utf-8");
username=request.getParameter("username");
password=request.getParameter("password");
if("admin".equals(username)&&"admin".equals(password)){
? ?session.setAttribute("loginUser", username);
? ? ?request.getRequestDispatcher("sucess.jsp").forward(request, response);
}
else{
?
response.sendRedirect("false.jsp");
}
?%>
</html>
password=request.getParameter("password");
這里為什么報錯：Type mismatch: cannot convert from Object to String？
是在搞不懂
2016-03-27
request.getParameter("name")返回String類型，
request.getAttribute("name")返回object類型
你應該是記混了 我當時也是這樣的 ? 你想強轉 ?
如果還報錯就那你檢查一下是不是你的編譯環境的問題。?
?web項目---屬性---編譯環境，把編譯的級別改的高一點試一下。比如1.5,1.6
2016-01-02
password=（String)request.getParameter("password");加個強轉試試