I would like to log response body with aspect in my Spring Boot application. As of now, I am doing this as follows:
#Pointcut("within(com.web.rest.*)")
public void applicationResourcePointcut() {
}
#AfterReturning(value = ("applicationResourcePointcut()"),
returning = "returnValue")
public void endpointAfterReturning(JoinPoint joinPoint, Object returnValue) throws Throwable {
try {
System.out.println("RESPONSE OBJECT = " + mapper.writeValueAsString(returnValue));
} catch (JsonProcessingException e) {
System.out.println(e.getMessage());
}
}
But here, I am getting full response with Http Status code and other meta data as follows:
RESPONSE OBJECT = {"headers":{"Location":["/api/students/de7cc0b7-dcdf-4f2e-bc26-41525064dd55"],"X-ThreatModelSvc-Alert":["Entit ystudent is created with id:de7cc0b7-dcdf-4f2e-bc26-41525064dd55"]},"body":{"id":"de7cc0b7-dcdf-4f2e-bc26-41525064dd55","name":"Test Name","description":"Test Description","lastModifiedBy":"amallik"},"statusCodeValue":201,"statusCode":"CREATED"}
Here, I just would like to capture the response body. I cannot understand how to extract just the body from the response.
Related
i want to receive a HTTP Stream in SpringBoot but the InputStream of HttpServletRequest seems not to be an endless HTTP Stream and only contains the Content of first HTTP Body.
I want to process a chuncked HTTP Stream in SpringBoot on which is puhed some Value String from time to time.
Currently I tried something like this in a controller:
#Override
public void test(HttpServletRequest request,
HttpServletResponse response) {
System.out.println("StreamStart");
try {
byte[] buffer = new byte[1024];
while(true){
int len = request.getInputStream().read(buffer);
if(len!=-1) {
System.out.println("Len: " + len);
System.out.println(new String(buffer));
}
Thread.sleep(500);
}
}
catch(Exception x){
x.printStackTrace();
}
System.out.println("StreamEnd");
}
However the first Request Body after the header works, but the second does not appear in my Controller.
Does SpringBoot cancles the connection or the stream?
Can I have access to the complete HTTP Input stream to get my values from it?
Maybe Multipart request would be usefull for you?
That way you can recieve multiple parts of data
https://www.w3.org/Protocols/rfc1341/7_2_Multipart.html
Example:
#PostMapping("/upload")
public void uploadStream(#RequestParam MultipartFile[] multipartFiles){
for(MultipartFile multipartFile:multipartFiles){
try {
InputStream inputStream = multipartFile.getInputStream();
} catch (IOException e) {
e.printStackTrace();
}
}
}
I have to implement a error decode for feign client I went to through this link
in that, decode function needs response but how to get this response from fiegn client, below is my feign client.
#FeignClient(name="userservice")
public interface UserClient {
#RequestMapping(
method= RequestMethod.GET,
path = "/userlist")
String getUserByid(#RequestParam(value ="id") String id);
}
I call feign client like this, whenever there is a error FeignException will be caught, but I want to get the proper error codes, like 400, 403 etc .
try {
String str = userClient.getUserByid(id);
return str;
}
catch(FeignException e)
{
logger.error("Failed to get user", id);
}
catch (Exception e)
{
logger.error("Failed to get user", id);
}
I am trying to create a web application using spring 5 . It's a micro-service which hit few other micro-services. Response from one service is dependent the other.I am using global exception handing in my application.
Here is my code:
#Override
public Mono<Response> checkAvailablity(Request request) {
Mono<Response> authResponse = userService.authenticateToken(request);
return authResponse.doOnSuccess(t -> {
// if success is returned.
// Want to return this innerResponse
Mono<Response> innerResponse =
httpService.sendRequest(Constant.SER_BOOKING_SERVICE_CHECK_AVAILABILTY,
request.toString(), Response.class);
}).doOnError(t -> {
logger.info("Subscribing mono in Booking service - On Error");
Mono.error(new CustomException(Constant.EX_MODULE_CONNECTION_TIMED_OUT));
});
In case of error I want to throw CustomException and catch it in global exception handler:
#ControllerAdvice
public class ExceptionInterceptor {
public static Logger logger = Logger.getLogger(ExceptionInterceptor.class);
#ExceptionHandler(value = CustomException.class)
#ResponseBody
public Response authenticationFailure(ServerHttpRequest httpRequest, ServerHttpResponse response,
CustomException ex) {
logger.info("CustomException Occured with code => " + ex.getMessage());
return buildErrorResponse(ex.getMessage());
}
Based on the above code I have two problems:
The exception which is thrown in Mono.error() is not captured in global exception handler.
In case of success, response from the inner service should be returned.
Used two methods in mono: flatmap() and onErrorMap()
and updated my checkAvailablity() code:
public Mono<Response> checkAvailablity(Request request) {
Mono<Response> authResponse = userService.authenticateToken(request);
return authResponse.flatmap(t -> {
// Added transform() for success case
Mono<Response> response = httpService.sendRequest(Constant.SER_BOOKING_SERVICE_CHECK_AVAILABILTY,
request.toString(), Response.class);
logger.info("Response from SER_BOOKING_SERVICE_CHECK_AVAILABILTY");
return response;
}).onErrorMap(t -> {
// Added onErrorMap() for failure case & now exception is caught in global exception handler.
throw new CustomException(Constant.EX_MODULE_CONNECTION_TIMED_OUT);
});
}
I am working on a Spring project implementing a simple console application that have to call an external REST web service passing to it a parameter and obtaining a response from it.
The call to this webservice is:
http://5.249.148.180:8280/GLIS_Registration/6
where 6 is the specified ID. If you open this address in the browser (or by cURL tool) you will obtain the expected error message:
<?xml version="1.0" encoding="UTF-8"?>
<response>
<sampleid>IRGC 100000</sampleid>
<genus>Oryza</genus>
<error>PGRFA sampleid [IRGC 100000], genus [Oryza] already registered for this owner</error>
</response>
This error message is the expected response for this request and I correctly obtain it also using cURL tool to perform the request.
So I have to perform this GET request from my Spring application.
To do it I create this getResponse() method into a RestClient class:
#Service
#Scope(proxyMode = ScopedProxyMode.TARGET_CLASS)
public class RestClient {
RestTemplate restTemplate;
String uriResourceRegistrationApi;
public RestClient() {
super();
restTemplate = new RestTemplate();
uriResourceRegistrationApi = "http://5.249.148.180:8280/GLIS_Registration/7";
}
public ResponseEntity<String> getResponse() {
ResponseEntity<String> response = restTemplate.getForEntity(uriResourceRegistrationApi, String.class);
return response;
}
}
Then I call this method from this test method:
#Test
public void singleResourceRestTest() {
System.out.println("singleResourceRestTest() START");
ResponseEntity<String> result = restClient.getResponse();
System.out.println("singleResourceRestTest() END");
}
But I am experiencing a very strange behavior, what it happens is:
1)The call to my external web service seems that happens (I saw it from the web services log).
2) The web service retrieve the parameter having value 7 but then it seems that can't use it as done without problem performing the request from the browser or by the shell statment:
curl -v http://5.249.148.180:8280/GLIS_Registration/7
But now, calling in this way, my webservice (I can't post the code because it is a WSO2 ESB flow) give me this error message:
<200 OK,<?xml version="1.0" encoding="UTF-8"?>
<response>
<error>Location information not correct</error>
<error>At least one between <genus> and <cropname> is required</error>
<error>Sample ID is required</error>
<error>Date is required</error>
<error>Creation method is required</error>
</response>,{Vary=[Accept-Encoding], Content-Type=[text/html; charset=UTF-8], Date=[Fri, 05 May 2017 14:07:09 GMT], Transfer-Encoding=[chunked], Connection=[keep-alive]}>
Looking the web service log it seems that performing the call using RestTemplate it have some problem to use the retrieved ID=7 to perform a database query.
I know it looks terribly strange and you can see: "The problem is of your web service and not of the Spring RestTemplate". This is only partially true because I implemented this custom method that perform a low level Http GET call, this callWsOldStyle() (putted into the previous RestClient class):
public void callWsOldStyle() {
HttpURLConnection connection = null;
BufferedReader reader = null;
try {
URL restAPIUrl = new URL("http://5.249.148.180:8280/GLIS_Registration/7");
connection = (HttpURLConnection) restAPIUrl.openConnection();
connection.setRequestMethod("GET");
// Read the response
reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
StringBuilder jsonData = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
jsonData.append(line);
}
System.out.println(jsonData.toString());
}catch(Exception e) {
e.printStackTrace();
}
finally {
// Clean up
IOUtils.closeQuietly(reader);
if(connection != null)
connection.disconnect();
}
}
Using this method instead the RestTemplate one it works fine and this line:
System.out.println(jsonData.toString());
print the expected result:
<?xml version="1.0" encoding="UTF-8"?><response><sampleid>IRGC 100005</sampleid><genus>Oryza</genus><error>PGRFA sampleid [IRGC 100005], genus [Oryza] already registered for this owner</error></response>
To summarize:
Calling my WS from the browser it works.
Calling my WS using cURL it works.
Calling my WS using my callWsOldStyle() method it works.
Calling my WS using the method that use RestTemplate it go into error when my WS receive and try to handle the request.
So, what can be the cause of this issue? What am I missing? Maybe can depend by some wrong header or something like this?
As Pete said you are receiving an internal server error (status code 500) so you should check the server side of this rest service.
In any case you can do the following for the resttemplate
create an org.springframework.web.client.RequestCallback object if
you need to do something in the request
create an org.springframework.web.client.ResponseExtractor<String>
object in order to extract your data
use the resttemplate
org.springframework.web.client.RequestCallback
public class SampleRequestCallBack implements RequestCallback
{
#Override
public void doWithRequest(ClientHttpRequest request) throws IOException
{
}
}
org.springframework.web.client.ResponseExtractor
public class CustomResponseExtractor implements ResponseExtractor<String>
{
private static final Logger logger = LoggerFactory.getLogger(CustomResponseExtractor.class.getName());
#Override
public String extractData(ClientHttpResponse response) throws IOException
{
try
{
String result = org.apache.commons.io.IOUtils.toString(response.getBody(), Charset.forName("UTF8"));
if( logger.isInfoEnabled() )
{
logger.info("Response received.\nStatus code: {}\n Result: {}",response.getStatusCode().value(), result);
}
return result;
}
catch (Exception e)
{
throw new IOException(e);
}
}
}
REST TEMPLATE CALL
#Test
public void testStack()
{
try
{
String url = "http://5.249.148.180:8280/GLIS_Registration/6";
String response = restTemplate.execute(url, HttpMethod.GET, new SampleRequestCallBack(), new CustomResponseExtractor());;
logger.info(response);
}
catch (Exception e)
{
logger.error("Errore", e);
}
}
Angelo
So I am trying to log all uncaught exceptions returned by the controllers of a spring project in a generic fashion.
I was able to do this with the following exception handler:
#ControllerAdvice
public class ControllerConfig {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
public static final String DEFAULT_ERROR_VIEW = "error";
#ExceptionHandler(HttpMessageNotReadableException.class)
#ResponseStatus(HttpStatus.BAD_REQUEST)
public void handleBadRequest(HttpMessageNotReadableException e) {
logger.warn("Returning HTTP 400 Bad Request", e);
throw e;
}
#ExceptionHandler(AccessDeniedException.class)
public void defaultErrorHandler(HttpServletRequest request, Exception e) throws Exception {
logger.error("Error in request:" + request.getRequestURL(), e);
throw e;
}
This also returns the error responses of the request, so I don't have to differentiate between all the different error response codes.
However, for every invocation of the method a second error log is created because of the exception thrown in the method:
Code is from org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#doResolveHandlerMethodException
try {
if (logger.isDebugEnabled()) {
logger.debug("Invoking #ExceptionHandler method: " + exceptionHandlerMethod);
}
exceptionHandlerMethod.invokeAndHandle(webRequest, mavContainer, exception);
}
catch (Exception invocationEx) {
if (logger.isErrorEnabled()) {
logger.error("Failed to invoke #ExceptionHandler method: " + exceptionHandlerMethod, invocationEx);
}
return null;
}
So is there a smarter way to return the original exception of the method?
It depends on what do you mean by "a smarter way to return the original exception". What exactly would you like to return to the client? If this is just the message of the exception you can simply return it from the exception handler and annotate the method with #ResponseBody. Spring will do the rest for you.
#ExceptionHandler(HttpMessageNotReadableException.class)
#ResponseStatus(HttpStatus.BAD_REQUEST)
#ResponseBody
public String handleBadRequest(HttpMessageNotReadableException e) {
logger.warn("Returning HTTP 400 Bad Request", e);
throw e.getMessage();
}
You can also return some custom object which wraps the exception information and any other data that you desire.