JAX-WS在客户端检索引发的自定义异常

我有一个从客户端(JavaFX桌面应用程序)使用的web服务。为此,我还创建了一个自定义异常类,它将返回定义的消息和错误代码。我尝试使用的方法如下:

public void insertUserDataService(String mailAddress, String userName, String name, String lastName, String password) throws ThrowExceptionToClient {
    try {
        String hashPassword = BCrypt.hashpw(password, BCrypt.gensalt());
        User user = new User(mailAddress, userName, name, lastName, hashPassword);
        controller.insertUser(user, cdba);
    } catch (ClassNotFoundException | SQLException e  ) {
        if(e instanceof SQLException) { 
            SQLException sqlE = (SQLException) e;
            throw new ThrowExceptionToClient(sqlE);
        }
        else {
            throw new ThrowExceptionToClient(e);
        }
    }
}

如果异常类型为SQLException,请观察引发的实例。自定义类如下所示:

public class ThrowExceptionToClient extends Exception{
/**
 * 
 */
private static final long serialVersionUID = 1L;
private MessageWrapper mWrapper;
private String errorCode;
private String errorMessage;
public ThrowExceptionToClient(Exception e) {
    if(e instanceof SQLException ) {
        if(((SQLException) e).getErrorCode() == 19) {
            this.errorCode = "1";
            this.errorMessage = "_rae_";
        }
    }else {
        this.errorCode = "99";
        this.errorMessage = "_grc_";
    }

}   
public String getErrorCode() {
    return this.errorCode;
}
public void setErrorCode(String errorCode) {
    this.errorCode = errorCode;
}
public String getErrorMessage() {
    return this.errorMessage;
}
public void setErrorMessage(String errorMessage) {
    this.errorMessage = errorMessage;
}

}

当我尝试通过Web Services Explorer使用中的方法时,我确实得到了正确的错误代码(ns1:errorCode)和错误消息(ns1:errorMessage):

<detail>
    <ns1:fault xmlns:ns1="http://endpointLayer">
      <ns1:errorCode>1</ns1:errorCode>
      <ns1:errorMessage>_rae_</ns1:errorMessage>
    </ns1:fault>
    <ns2:hostname xmlns:ns2="http://xml.apache.org/axis/">Mnemonics-MacBook-Air.local</ns2:hostname>
  </detail>

但是,当我试图在客户端捕获错误时,errorCode和errorMessage的值为null。

try {
            endpointService.insertUserDataService(mailTxtField.getText(), userNameTxtField.getText(),
                                                    nameTxtField.getText(), lastNameTxtField.getText(),
                                                    passwordField.getText());
            mailTxtField.clear();
            userNameTxtField.clear();
            nameTxtField.clear();
            lastNameTxtField.clear();
            passwordField.clear();
            reEnterPasswordField.clear();
        } catch (ThrowExceptionToClient_Exception e) {
            Alert onThrowExceptionToClientAlert = new Alert(Alert.AlertType.ERROR);
            onThrowExceptionToClientAlert.setTitle("Error Dialog");
            onThrowExceptionToClientAlert.setHeaderText("Server error detected");
            onThrowExceptionToClientAlert.setContentText(e.getFaultInfo().getErrorCode());
            onThrowExceptionToClientAlert.showAndWait();
            e.printStackTrace();
        }
e.getFaultInfo().getErrorCode()

调试时,我可以看到构造函数ThrowExceptionToClient中的值被填充。这些值不会一直跟随到客户端。 从wsdl文件创建客户机代码时会生成两个异常类:ThrowExceptionToClient和ThrowExceptionToClient\u Exception。 我在创建自定义异常类时是否做错了什么,或者客户端中的catch子句是否无效?

编辑:类MessageWrapper:

public class MessageWrapper {
private String errorMessage;//This variable was used in the client
private String errorCode;

public MessageWrapper(){}

public String getErrorMessage() { return errorMessage; }

public void setErrorMessage(String message) {
    this.errorMessage = message;
}

public String getErrorCode() { return errorCode; }

public void setErrorCode(String errorCode) {
    this.errorCode = errorCode;
}

}