错误 - 多次出现具有不同值的'contentType'是非法的 [英] Error - illegal to have multiple occurrences of 'contentType' with different values
问题描述
我在Eclipse中有一个动态Web项目，我在Glassfish4上运行。在项目中，有一个index.jsp文件，如下所示。当我在服务器上运行这个jsp时，我收到错误：
I have a dynamic web project in Eclipse which I run on Glassfish4. In the project, there is an index.jsp file given below. When I run this jsp on the server, I get the error:
org.apache.jasper.JasperException：/index.jsp(1, 1）PWC5988：页面指令：非常多次出现具有不同值的'contentType'（旧：text / html，new：text / html; charset = ISO-8859-1）
这是内部服务器错误及其描述 - 服务器遇到内部错误，无法完成此请求。
This is an internal server error with the description - The server encountered an internal error that prevented it from fulfilling this request.
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<link rel="stylesheet" type="text/css" href="css/designs.css">
</head>
<body>
Content
</body>
</html>
我查看了谷歌和其他网站，但没有找到可行的解决方案。服务器日志堆栈跟踪也没有帮助。请帮帮我。
I looked in google and other sites, but found no working solution. The server log stack trace also did not help. Please help me.
推荐答案
问题是你有两次声明Content-Type（如text / html） 。这违反了规范，导致您的网站出错。
The issue is that you have "Content-Type" declared twice (as "text/html"). This against specifications and is causing your website to throw an error.
您不能同时使用这两个标签。 HTTP协议还提供Content-Type编码。因此，除非您知道您的网站如何为这些网页提供服务，否则请不要使用Content-Type。
You just can't use both tags simultaneously. The HTTP protocol also provides the Content-Type encoding. So unless you know how your website is serving those pages, don't mess with Content-Type.
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