使用Java restlet發佈到服務器

Question

我正在嘗試使用restlet向服務器發佈JSONO對象。 當我嘗試使用郵差它能夠發表後，但是當我嘗試使用的Restlet從Java代碼後，我得到一個錯誤：

無法找到一個轉換器，該對象 和錯誤的請求（400） - 由於格式錯誤，服務器無法理解請求。

我的代碼是：

ClientResource resource = new ClientResource(localHost + "/path"); 

//resource.setMethod(Method.POST); 
resource.setAttribute("Authorization", authHdr); //auth code passed to the function 
resource.setAttribute("Accept", "application/json"); 
resource.setAttribute("Content-Type", "application/json"); 

Map<Integer, JSONObject> assetGrpList = networks; //map I pass to function 
for(Iterator<Map.Entry<Integer, JSONObject>> it = assetGrpList.entrySet().iterator(); it.hasNext();) 
{ 
    Map.Entry<Integer, JSONObject> mapEntry = it.next(); 
    JSONObject network = mapEntry.getValue(); 

    JSONObject jsonobj = new JSONObject(); 

    jsonobj.put("managedSiteId", siteId); 
    jsonobj.put("assetGrpExternalId", network.get("NetworkID").toString()); 
    jsonobj.put("assetGrpName", network.get("NetworkName")); 
    jsonobj.put("geoLocationInfoId", 1); 
    log.info(jsonobj.toString()); 

    Representation response = resource.post(jsonobj, MediaType.APPLICATION_JSON); 
    if(resource.getResponse().getStatus().getCode() > 200) { 
     try { 
      log.info(response.getText()); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 
    } 
} 


org.restlet.resource.ResourceException: Bad Request 
at org.restlet.resource.ClientResource.doError(ClientResource.java:590) 
at org.restlet.resource.ClientResource.handleInbound(ClientResource.java:1153) 
at org.restlet.resource.ClientResource.handle(ClientResource.java:1048) 
at org.restlet.resource.ClientResource.handle(ClientResource.java:1023) 
at org.restlet.resource.ClientResource.post(ClientResource.java:1485) 
at org.restlet.resource.ClientResource.post(ClientResource.java:1424) 
at com.waygum.mbaas.connectors.helper.MbaasRestClient.postAssetGrp(MbaasRestClient.java:531) 
at com.waygum.mbaas.connectors.MbaasConnectorsBootRouter$1.process(MbaasConnectorsBootRouter.java:229) 
at org.apache.camel.processor.DelegateSyncProcessor.process(DelegateSyncProcessor.java:63) 
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77) 
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:460) 
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190) 
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121) 
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83) 
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190) 
at org.apache.camel.component.direct.DirectProducer.process(DirectProducer.java:62) 
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:141) 
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77) 
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:460) 
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190) 
at org.apache.camel.processor.Pipeline.process(Pipeline.java:121) 
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83) 
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:190) 
at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109) 
at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:87) 
at org.apache.camel.component.sparkrest.CamelSparkRoute.handle(CamelSparkRoute.java:46) 
at spark.SparkBase$1.handle(SparkBase.java:311) 
at spark.webserver.MatcherFilter.doFilter(MatcherFilter.java:159) 
at spark.webserver.JettyHandler.doHandle(JettyHandler.java:60) 
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189) 
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) 
at org.eclipse.jetty.server.Server.handle(Server.java:499) 
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) 
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) 
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) 
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) 
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) 
at java.lang.Thread.run(Thread.java:745) 

Answer 1

我認爲你嘗試創建請求的錯誤的方式。你應該使用Restlet API來做到這一點。

ClientResource resource = new ClientResource(localHost + "/path"); 

resource.setAttribute（「Authorization」，authHdr）;傳遞給函數

// JSON payload and Content-Type header 

JSONObject jsonObj = (...) 
JsonRepresentation repr = new JsonRepresentation(jsonObj); 

// Authorization header 

String pAccessToken = "some token"; 
ChallengeResponse challengeResponse = new ChallengeResponse(
        new ChallengeScheme("", "")); 
challengeResponse.setRawValue(pAccessToken); 
resource.setChallengeResponse(challengeResponse); 

// Request and Accept header 

resource.post(jsonObj, MediaType.APPLICATION_JSON); 

的表示自動包含application/json內容類型，因爲它是一個JSON一個// AUTH碼。第二個參數定義了Accept標題的值。

關於Authorization標頭，HTTP需要一個前綴，如Basic。這就是Restlet在其API中需要一個的原因。作爲解決方法，您可以傳遞空白前綴。看到這個答案的詳細信息：

• How to specify Restlet customer HTTP header with key as "Authorization"