json数据传回前台报错。

club_7 2011-05-22 11:55:16 
2011-05-22 11:19:58,640 ERROR [org.apache.struts.actions.DispatchAction] - <Dispatch[/getSbdmlist] to method 'getSbzt' returned an exception>

java.lang.reflect.InvocationTargetException

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

	at java.lang.reflect.Method.invoke(Unknown Source)

	at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)

	at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)

	at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:110)

	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)

	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)

	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)

	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)

	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 cn.com.sedee.centermanager.appclass.CharacterEncodingFitler.doFilter(CharacterEncodingFitler.java:29)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

	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)

Caused by: java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher

	at cn.com.sedee.struts.action.SbdmbAction.outPrint(SbdmbAction.java:121)

	at cn.com.sedee.struts.action.SbdmbAction.getSbzt(SbdmbAction.java:103)

	... 36 more

2011-05-22 11:19:58,640 WARN [org.apache.struts.action.RequestProcessor] - <Unhandled Exception thrown: class javax.servlet.ServletException>

2011-5-22 11:19:58 org.apache.catalina.core.StandardWrapperValve invoke

严重: Servlet.service() for servlet action threw exception

java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher

	at cn.com.sedee.struts.action.SbdmbAction.outPrint(SbdmbAction.java:121)

	at cn.com.sedee.struts.action.SbdmbAction.getSbzt(SbdmbAction.java:103)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

	at java.lang.reflect.Method.invoke(Unknown Source)

	at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)

	at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)

	at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:110)

	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)

	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)

	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)

	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)

	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 cn.com.sedee.centermanager.appclass.CharacterEncodingFitler.doFilter(CharacterEncodingFitler.java:29)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)

	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

	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)




public ActionForward getSbzt(ActionMapping mapping, ActionForm form,

			HttpServletRequest request, HttpServletResponse response) throws IOException, InterruptedException {

		Map model=new HashMap();

		String strid=(String)request.getParameter("paramid");

		List<Sbdmb> list=sbdmbService.getSbdmb(strid);

		PingSBZT pingSBZT = new PingSBZT();

		List objlist=new ArrayList();

                for (int i = 0; i < list.size(); i++) {

			String sbmc = list.get(i).getSbmc().toString();

			String sbip = list.get(i).getSbip().toString();

			String zt = pingSBZT.pingSBZT(sbip);

			System.out.println("设备名称:"+sbmc+":"+zt);

			

			SbdmbDto dto=new SbdmbDto();

			dto.setId(list.get(i).getSbId());

			dto.setSbmc(sbmc);

			dto.setSbzt(list.get(i).getSbzt());

			dto.setSblx(list.get(i).getSblxb().getSblxmc());

			dto.setSbip(sbip);

			dto.setLjzt(zt);

			objlist.add(dto);

                     }

		

		model.put("sbdmlist", objlist);

		outPrint(request,response,model);

		return null;

	}



 public void outPrint(HttpServletRequest request, HttpServletResponse response, Map model) {

        PrintWriter writer = null;

        response.setContentType("text/text; charset=utf-8");

        try {

            writer = response.getWriter();

        } catch (IOException e) {

         

            model.put("error", "error.action.AjaxAction.outprint_writer");

        }

        if (model.isEmpty())

            writer.println("0");

        else {

    		prePrint(request, response, model);

            JSONObject json = new JSONObject();

            json.putAll(model);

            writer.println(json);

            writer.close();

        }

    }


报错的行为：



            prePrint(request, response, model);

  121       JSONObject json = new JSONObject();

            json.putAll(model);

            writer.println(json);

            writer.close();


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tubage408 2011-05-24
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[Quote=引用 5 楼 wen691 的回复:]
是不是少了这个包 ezmorph.jar
使用json一般要这几个包：commons-beanutils.jar，commons-httpclient.jar，commons-lang.jar，ezmorph.jar，morph-1.0.1.jar ，json-lib-2.2.3.hb-jdk15.jar
[/Quote]


这个是正解！！
fangxb86 2011-05-24
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少包!
commons-beanutils.jar，commons-httpclient.jar，commons-lang.jar，ezmorph.jar，morph-1.0.1.jar ，json-lib-2.2.3.hb-jdk15.jar
oille103 2011-05-23
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你缺少一个json的包
rorom 2011-05-23
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报的是ERROR,不是Exception
wen691 2011-05-23
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是不是少了这个包 ezmorph.jar
使用json一般要这几个包：commons-beanutils.jar，commons-httpclient.jar，commons-lang.jar，ezmorph.jar，morph-1.0.1.jar ，json-lib-2.2.3.hb-jdk15.jar
club_7 2011-05-22
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getSbzt()方法 没有问题。
JSON这个不是他JAR包里的方法吗
Spring89 2011-05-22
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java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher
没找以这个类，
JSONObject json = new JSONObject();
new都出错？
getSbzt这个方法返回了异常，你好好看一下这个方法！
java.lang.reflect.InvocationTargetException
这个异常很少见，引起这个异常这原因是一种包装由调用方法或构造方法所抛出异常。
所以你要好好看这JSONObject()构造方法和getSbzt()方法！
club_7 2011-05-22
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缺少哪个CLASS 能详细点说明吗
云淡风清-北京 2011-05-22
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说你缺少class
Caused by: java.lang.NoClassDefFoundError: net/sf/ezmorph/Morpher
Caused by: java.lang.NoClassDefFoundError: ... json数据传回前台报错。 Java code 2011-05-22 11:19:58,640 ERROR [org.apache.struts.actions.DispatchAction] - <Dispatch[/getSbdmlist] to ...
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