jsp json服务器：500错误
我正在尝试通过 jsp 中的 jquery ajax 请求集成 json。我为此使用 org.json.simple 包。从客户端来看，一切都很好，但从服务器响应来看，我收到 500 服务器代码错误和 4 个 ReadyState 代码。
我得到的响应是：
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 12 in the generated java file
Only a type can be imported. org.json.simple.JSONObject resolves to a package
An error occurred at line: 15 in the jsp file: /interceptor_primaryengine_save.jsp
JSONObject cannot be resolved to a type
12: <body>
13: <%
14:
15: JSONObject obj = new JSONObject();
16:
17: String value = request.getParameter("value");
18: obj.put("value",value);
An error occurred at line: 15 in the jsp file: /interceptor_primaryengine_save.jsp
JSONObject cannot be resolved to a type
12: <body>
13: <%
14:
15: JSONObject obj = new JSONObject();
16:
17: String value = request.getParameter("value");
18: obj.put("value",value);
Stacktrace:
我用来发送响应的 jsp 代码是：
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page
import="org.jdom.*,java.util.*,org.jdom.input.SAXBuilder,org.jdom.output.XMLOutputter,java.io.*,org.jdom.filter.*,org.json.simple.JSONObject"%>
<!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">
<title>Insert title here</title>
</head>
<body>
<%
JSONObject obj = new JSONObject();
String value = request.getParameter("value");
obj.put("value",value);
out.print(value);
out.flush();
%>
</body>
</html>
我正在使用 eclipse IDE。我已经在项目中导入了jar文件。我已经重新启动了服务器并重新启动了 Eclipse。 我在这里做错了什么？
I am trying to integrate json through a jquery ajax request in jsp. I am using org.json.simple package for this. Every thing is fine from client end, but from server response I am getting an 500 server code error, and 4 readyState code.
The response I am getting is:
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 12 in the generated java file
Only a type can be imported. org.json.simple.JSONObject resolves to a package
An error occurred at line: 15 in the jsp file: /interceptor_primaryengine_save.jsp
JSONObject cannot be resolved to a type
12: <body>
13: <%
14:
15: JSONObject obj = new JSONObject();
16:
17: String value = request.getParameter("value");
18: obj.put("value",value);
An error occurred at line: 15 in the jsp file: /interceptor_primaryengine_save.jsp
JSONObject cannot be resolved to a type
12: <body>
13: <%
14:
15: JSONObject obj = new JSONObject();
16:
17: String value = request.getParameter("value");
18: obj.put("value",value);
Stacktrace:
The jsp code I am using to send response is:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page
import="org.jdom.*,java.util.*,org.jdom.input.SAXBuilder,org.jdom.output.XMLOutputter,java.io.*,org.jdom.filter.*,org.json.simple.JSONObject"%>
<!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">
<title>Insert title here</title>
</head>
<body>
<%
JSONObject obj = new JSONObject();
String value = request.getParameter("value");
obj.put("value",value);
out.print(value);
out.flush();
%>
</body>
</html>
I am using eclipse IDE. I have imported the jar file in the project. I have restarted server and restarted eclipse too.
What am i doing wrong here?!
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如果在发送响应的 Web 应用程序的类路径中找不到 json-simple.jar，您会收到该消息。
You can get that message if json-simple.jar is not found in the classpath in the webapp that is sending the response.