I have been trying to create a small java client to call Highchart Export server to get the pdf/jpeg etc.. but it is not successful using Spring's RestTemplate -> RestTemplate restTemplate = new org.springframework.web.client.RestTemplate() in the client side. I tried post/get/exchange methods.. but unable to PASS the required method parameters to the server side... the required method is getting called without the params and returnd their test jsp page.
Highchart Export Server code =>
#Controller
#RequestMapping("/")
public class ExportController extends HttpServlet {
...
...
#RequestMapping(method = {RequestMethod.POST, RequestMethod.GET})
public HttpEntity<byte[]> exporter(
#RequestParam(value = "svg", required = false) String svg,
#RequestParam(value = "type", required = false) String type,
#RequestParam(value = "filename", required = false) String filename,
#RequestParam(value = "width", required = false) String width,
#RequestParam(value = "scale", required = false) String scale,
#RequestParam(value = "options", required = false) String options,
#RequestParam(value = "globaloptions", required = false) String globalOptions,
#RequestParam(value = "constr", required = false) String constructor,
#RequestParam(value = "callback", required = false) String callback,
#RequestParam(value = "callbackHC", required = false) String callbackHC,
#RequestParam(value = "async", required = false, defaultValue = "false") Boolean async,
#RequestParam(value = "jsonp", required = false, defaultValue = "false") Boolean jsonp,
HttpServletRequest request,
HttpSession session) throws ServletException, InterruptedException, SVGConverterException, NoSuchElementException, PoolException, TimeoutException, IOException, ZeroRequestParameterException {
...
}
}
What method in RestTemplate should I call and how to pass the params from client side like JSON formatted options, type etc, so that above Service method gets executed with proper params? Your help is appreciated.
I made it work after passing values in org.springframework.util.LinkedMultiValueMap object like
MultiValueMap<String, String> prms = new LinkedMultiValueMap<String, String>();
prms.add("param1", "value1");
prms.add("param2", "value2");
and then calling..
RestTemplate restTemplate = new RestTemplate();
byte[] b = restTemplate.postForObject("http://****/", prms, byte[].class);
Related
I´m trying to make a request with or without parameters, according the code below:
#RequestMapping(value = "/threshold/list", method = RequestMethod.GET)
public List<Threshold> listThreshold(#RequestParam(required = false) String categoria, #RequestParam(required = false) String kpi, #RequestParam(required = false) String data, #RequestParam(required = false) String hora) {
return thresholdQuery.listThreshold(categoria, kpi, data, hora);
}
But when I call the endpoint this way:
http://localhost:8081/threshold/list?categoria=casa
I got the error below:
Not enough variable values available to expand 'categoria=casa'
I believe it should be 'name' instead of 'value'
#RequestParam(name="categoria",required = false)
I need to send a value from an Angularjs front to a springboot Java back-office.
The back is called by many other fronts and services.
Which means I can change The front but I have to make sure that any change on the back must not break it for the other callers.
So Extra headers or Other fields in the request body etc... any change that won't break the other existing calls is what I'm looking for.
An example of some methods signature:
A HTTP GET signature
#Override
#ResponseStatus(code = HttpStatus.OK)
#RequestMapping(value = "/", method = RequestMethod.GET)
public ResponseEntity<List<Something>> getSomething(
#RequestHeader(name = Constants.HEADER.SOME_CODE) final String code,
#RequestHeader(name = Constants.HEADER.COMPANY_ID) final String companyId,
#RequestHeader(name = Constants.HEADER.CLIENT_ID) final String clientId) {
A HTTP POST signature
#Override
#ResponseStatus(code = HttpStatus.OK)
#RequestMapping(value = "/{pathValue}/transactions", method = RequestMethod.POST)
public ResponseEntity<SomeResponse> requestSomething(
#RequestHeader(name = Constants.HEADER.EFS_CODE) final String vode,
#RequestHeader(name = Constants.HEADER.COMPANY_ID) final String companyId,
#RequestHeader(name = "Access-Code", required = false) final String codeAcces,
#RequestHeader(name = Constants.HEADER.CLIENT_ID) final String clientId,
#PathVariable("pathValue") final String pathValue,
#RequestBody #Valid Transact transaction) {
I have the following code:
#PostMapping()
public ResponseEntity<Object> postAccounts(
#RequestHeader(value = "client-id", required = true) String clientId,
#RequestHeader(value = "X-client-Global-Id", required = false) String clientGlobalID,
#RequestHeader(value = "Authorization", required = true) String authorization,
#Valid #RequestBody(required = true) String inputContract, #RequestBody(required = true)String nameInput, #RequestBody(required = true) Boolean state) {
return new ResponseEntity<>(inputContract, HttpStatus.OK);
}
When call this method by postman give me an error.
trace": "org.springframework.http.converter.HttpMessageNotReadableException: I/O error while reading input message; nested exception is java.io.IOException: Stream closed\r\n\tat org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver.readWithMessageConverters(AbstractMessageConverterMethodArgumentResolver.java:217)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:158)\r\n\tat
You only can send an one RequestBody, if you want send more than one properties in the body. You must create an object
#PostMapping()
public ResponseEntity<Object> postAccounts(
//Other Headers...,
#Valid #RequestBody(required = true) ObjectWithAllFields) {
return new ResponseEntity<>(ObjectWithAllFields, HttpStatus.OK);
}
EDIT 1
And pls send your error trace.
I have spring code where there is request as follows :
#RequestMapping(method = RequestMethod.GET, value = {
EnterpriseLiterals.ROOT_URL_SIMPLE + "storeDepartments/search.json",
EnterpriseLiterals.ROOT_URL_SIMPLE + "storeDepartments/search" },params = { "!dealerStoreId" })
public Map<String, List<? extends AbstractDepartment>> getDepartments(
#RequestParam(value = "enterpriseId", required = true) String enterpriseId,#RequestParam(value = "responseFields", required = false) String responseFields)
And another request as :
#RequestMapping(method = RequestMethod.GET, value = {
EnterpriseLiterals.ROOT_URL_SIMPLE + "storeDepartments/search",
EnterpriseLiterals.ROOT_URL_SIMPLE + "storeDepartments/search.json" },params = {"!enterpriseId"})
#ResponseBody
public Map<String, List<AbstractDepartment>> getDepartmentListBasedOnStoreAndDeptType(#RequestParam(value = "dealerStoreId", required = true) String dealerStoreId,#RequestParam(value = "responseFields", required = false, defaultValue = "summary") String responseFields)
However, since there is responseFields in both the requests I am getting error when I call the above API's with responseFields saying "ResponseFields does not exist.".
Please help with solutions to solve this problem.
I'm new in Spring Boot and I want to have the same Request Mapping method for JSON and simple request params, for example:
#RequestMapping(value = "/start")
public String startPostProcess(#RequestParam(value = "url",
required = false,
defaultValue = "https://goo.gl") String url,
#RequestParam(value = "word",
required = false,
defaultValue = "Search") String word,
#RequestBody String hereGoesJSON) {
//Do some stuff
}
So, when request goes with params, only #RequestParam will work, in other cases we will use #RequestBody annotation.
localhost:8080/start?url=htts://google.com&word=Luck
Or may bee I'll be able to write method like this, for accepting any params:
#RequestMapping(value = "/start")
public String startPostProcess(#RequestBody String anyParam) {
//Parse this anyParam
}
?
I've not found this trick in spring documentation, so I will appreciate any links to it.
Okay, I've solved the problem :D
All that I just needed was 2 methods with the same mapping and explicitly specify RequestMethod type:
#RequestMapping(value = "/start")
public String startPostProcess(#RequestParam(value = "url",
required = false,
defaultValue = "https://goo.gl") String url,
#RequestParam(value = "word",
required = false,
defaultValue = "Search") String word) throws InterruptedException {
//Do some stuff
}
#RequestMapping(value = "/start", method = RequestMethod.POST, consumes = "application/json")
public String startJsonProcess(#RequestBody String body) {
//Do another stuff with RequestBody
}
UPD: added "consumes = "application/json". It helps dividing simple POST requests and JSON POST requests.