Question

我正在开发一个多线程应用程序，我从JMS收到一些请求，线程正在运行以接收消息。这是我的线程如何工作：

try块中的模型映射器导致了我认为的问题：

patientAdder.addPatient(patientAddMessage, authResult, queueSender, baseUrl, modelMapper);

这里是完整的代码：

Executors.newSingleThreadExecutor().execute(new Runnable() {
public void run() {
  while (true) {
SonicQueueMessageSender queueSender = null;
                    try {
                        queueSender = new SonicQueueMessageSender(queueConnProvider);
                    } catch (JMSException e3) {
                        // TODO Auto-generated catch block
                        e3.printStackTrace();
                    }

                    String patientAddMessage = null;
                    try {
                        patientAddMessage = new SonicMessageReceiver(connectionProvider)
                                .getAddJsonMessage("MirthMessage");
                    } catch (JMSException e2) {
                        // TODO Auto-generated catch block
                        e2.printStackTrace();
                    }
                    final AuthModel auth = new AuthModel();
                    String authResult = null;
                    final PatientAdder patientAdder = new PatientAdder();
                    SecurityTokenModel securityToken = null;


                    String authPostString = null;
                    try {
                        authPostString = new ObjectMapper()
                                .writeValueAsString(auth);
                    } catch (JsonGenerationException e) {
                        e.printStackTrace();
                    } catch (JsonMappingException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                    System.out.println("Auth post string is: "+ authPostString);
                    System.out.println("base url is: " + baseUrl);
                    String authPostOutput = client
                            .doGetAuthRestPost(authPostString, url);
                    try {
                        securityToken = getAuth(authPostOutput);
                    } catch (JsonParseException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    } catch (JsonMappingException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    } catch (IOException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    }
                    authResult = securityToken.getAccessToken();
                    try {
                        patientAdder.addPatient(patientAddMessage, authResult, queueSender, baseUrl, modelMapper);
                    } catch (JsonParseException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (JsonMappingException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    // poster.postMessage(patientAddMessage, authResult);
                    catch (IllegalAccessException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (InvocationTargetException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (NoSuchMethodException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }catch(Exception e){
                        e.printStackTrace();
                    }

}
}
});

我需要将我正在请求的消息映射到bean类，并且我正在创建一个ModelMapper类对象，该对象具有映射属性的功能，但是当我尝试创建新对象时我的映射器类我得到了一个NPE：

Exception in thread "pool-1-thread-1" java.lang.NullPointerException
    at com.prnreferral.util.commons.ModelMapper.mapCanonicalMessageToPatientModel(ModelMapper.java:82)
    at com.prnreferral.patientprocess.add.PatientAdder.addPatient(PatientAdder.java:52)
    at com.prnreferral.patientprocess.add.PIXSAddPatient$1.run(PIXSAddPatient.java:148)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

我确定该对象是在我通过添加一些条件检查它时创建的，但是有些东西我缺少导致这个问题我还尝试添加一个新函数来检查此函数是否存在任何问题，但是获取

Exception in thread "pool-1-thread-1" java.lang.NoSuchMethodError: com.prnreferral.util.commons.ModelMapper.printString()V
at com.prnreferral.patientprocess.add.PatientAdder.addPatient(PatientAdder.java:49)
at com.prnreferral.patientprocess.add.PIXSAddPatient$2.run(PIXSAddPatient.java:173)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)

我坚持这个问题，不知道该怎么做，任何人都可以帮助我。提前谢谢。

线程“pool-1-thread-1”空指针Exception NoSuchMethodError中的异常

0 个答案: