Servlet: java.lang.ClassNotFoundException: org.json.simple.parser.ParseException
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Servlet: java.lang.ClassNotFoundException: org.json.simple.parser.ParseException
提问by Khawar Raza
I am implementing Google Cloud Messaging service for android. I have created a test server which sends push notifications to application users. But the server I have created is generating following error. I am using Java Servlet at server side and have included gcm-server.jar file in project.
我正在为 android 实现 Google Cloud Messaging 服务。我创建了一个测试服务器，它向应用程序用户发送推送通知。但是我创建的服务器产生了以下错误。我在服务器端使用 Java Servlet 并在项目中包含 gcm-server.jar 文件。
Here is the log:
这是日志：
java.lang.ClassNotFoundException: org.json.simple.parser.ParseException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at com.mgcm.SendGCMMessage.processRequest(SendGCMMessage.java:48)
at com.mgcm.SendGCMMessage.doPost(SendGCMMessage.java:40)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)
Any idea what's wrong with this?
知道这有什么问题吗？
回答by gajo
I had the same problem, try adding this library:
我有同样的问题，尝试添加这个库：
http://code.google.com/p/json-simple/downloads/detail?name=json-simple-1.1.1.jar
http://code.google.com/p/json-simple/downloads/detail?name=json-simple-1.1.1.jar
Tomy
托米
