为什么运行不了？
慕斯卡4106679
2016-01-02 21:00
<%@ 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 >用户名</label>
<input name="username" value="">
<label>密码</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");
这里为什么报错：Type mismatch: cannot convert from Object to String？
是在搞不懂
2回答
-
- qq_王力_0
- 2016-03-27 23:40:48
request.getParameter("name")返回String类型，
request.getAttribute("name")返回object类型
你应该是记混了 我当时也是这样的 你想强转
如果还报错就那你检查一下是不是你的编译环境的问题。
web项目---属性---编译环境，把编译的级别改的高一点试一下。比如1.5,1.6
-
- 产品经理不是经理
- 2016-01-02 21:35:39
password=（String)request.getParameter("password");加个强转试试
JAVA遇见HTML——JSP篇
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