java.lang.IllegalStateException：不是JSON对象
我正在尝试使用SonarQube Web API从SonarQube获得json响应。 在将JsonElement分配给JsonObject我收到此错误：
java.lang.IllegalStateException: Not a JSON Object
这是我的Java类
@Controller public class SonarController { @Autowired JenkinsDataService jenkinsService; @Autowired SonarDataService sonarService; HttpEntity entity; @RequestMapping(value = { "/sonar" }) public void test(HttpServletRequest request, HttpServletResponse response,ModelMap model ) throws ServletException, IOException{ try{ String url= "http://sbstpvmlx818:9000/api/resources?metrics=coverage,sonar&depth=1&metrics=ncloc"; RestTemplate restTemplate = new RestTemplate(); HttpHeaders headers = new HttpHeaders(); headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); entity = new HttpEntity("parameters", headers); ResponseEntity sonarResponse = restTemplate.exchange(url, HttpMethod.POST, entity, String.class); JsonElement jelement = new JsonParser().parse(sonarResponse.getBody()); JsonObject jobject = jelement.getAsJsonObject(); } catch(Exception e) { e.printStackTrace(); } } }
这是我的Json回复
[{"id":2772,"uuid":"AVeKDMBLuPlc0jzh2Dos","key":"com.testgroup.sara:platform","name":"platform","scope":"PRJ","qualifier":"TRK","date":"2017-03-03T12:04:35+0530","creationDate":"2016-10-03T15:47:53+0530","lname":"platform","version":"1.0","msr":[{"key":"ncloc","val":590737.0,"frmt_val":"590,737"}]},{"id":1,"uuid":"AVeJ89Y3uPlc0jzh2Doq","key":"com.testgroup.tbms:tbms","name":"Tbms","scope":"PRJ","qualifier":"TRK","date":"2017-03-06T12:32:57+0530","creationDate":"2016-10-03T15:20:41+0530","lname":"Tbms","version":"5.0","msr":[{"key":"ncloc","val":427062.0,"frmt_val":"427,062"}]},{"id":6156,"uuid":"AVqJnkVdkCpBdZtQIlHD","key":"com.testgroup.sara.services.xdm:xdmf","name":"sara Services :: XDMF","scope":"PRJ","qualifier":"TRK","date":"2017-03-01T16:59:57+0530","creationDate":"2017-03-01T16:55:35+0530","lname":"sara Services :: XDMF","version":"0.9","description":"sara :: SERVICES","msr":[{"key":"ncloc","val":5798.0,"frmt_val":"5,798"}]}]
这是错误
java.lang.IllegalStateException: Not a JSON Object: [{"id":2772,"uuid":"AVeKDMBLuPlc0jzh2Dos","key":"com.testgroup.sara:platform","name":"platform","scope":"PRJ","qualifier":"TRK","date":"2017-03-03T12:04:35+0530","creationDate":"2016-10-03T15:47:53+0530","lname":"platform","version":"1.0","msr":[{"key":"ncloc","val":590737.0,"frmt_val":"590,737"}]},{"id":1,"uuid":"AVeJ89Y3uPlc0jzh2Doq","key":"com.testgroup.tbms:tbms","name":"Tbms","scope":"PRJ","qualifier":"TRK","date":"2017-03-06T12:32:57+0530","creationDate":"2016-10-03T15:20:41+0530","lname":"Tbms","version":"5.0","msr":[{"key":"ncloc","val":427062.0,"frmt_val":"427,062"}]},{"id":6156,"uuid":"AVqJnkVdkCpBdZtQIlHD","key":"com.testgroup.sara.services.xdm:xdmf","name":"sara Services :: XDMF","scope":"PRJ","qualifier":"TRK","date":"2017-03-01T16:59:57+0530","creationDate":"2017-03-01T16:55:35+0530","lname":"sara Services :: XDMF","version":"0.9","description":"sara :: SERVICES","msr":[{"key":"ncloc","val":5798.0,"frmt_val":"5,798"}]}] at com.google.gson.JsonElement.getAsJsonObject(JsonElement.java:90) at com.test.reldashboard.controller.SonarController.test(SonarController.java:71) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.test.reldashboard.filter.UriFilter.doFilter(UriFilter.java:64) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.test.reldashboard.filter.SessionFilter.doFilter(SessionFilter.java:43) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:662)
读为JSONArray读取jsonarray
if (jelement instanceof JsonObject) { JsonObject jobject = new JsonObject(jelement .getAsJsonObject()); } else if (jelement instanceof JsonArray) { JsonArray jarray = new JsonArray(jelement.getAsJsonArray()); }
不是JSON对象： [{"id":2772,"uuid":"AVeKDMBLuPlc0jzh2Dos".....这里的API响应起点是JSONArray而不是JSONObject所以你得到java.lang.IllegalStateException: Not a JSON Object:如果条件由@rathna回答，请添加如下
if (jelement instanceof JsonObject) { JsonObject jobject = new JsonObject(jelement .getAsJsonObject()); } else if (jelement instanceof JsonArray) { JsonArray jarray = new JsonArray(jelement.getAsJsonArray()); }
我认为rathna的代码可能存在一个小错误。 由于jelement.getAsJsonObject()已经是JsonObject ，因此构造函数是多余的。 这是适合我的代码：
if (jelement instanceof JsonObject) { JsonObject jobject = jelement.getAsJsonObject(); } else if (jelement instanceof JsonArray) { JsonArray jarray = jelement.getAsJsonArray(); }