I made small application. I made login application. I want call restful web services from action class. I used struts2 framework. I can't change restful web services. Please give me suggestion.
It is solution of my question.
try {
URL url = new URL("http://localhost:8080/ProWebservices/webresources/users/" + emailid + "&" + password + "&photographer");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "application/json");
if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
JsonObject json = (JsonObject) new JsonParser().parse(output);
String out = (String) json.get("userid").toString();
if(!out.equals("null")){
return "SUCCESS";
}
}
conn.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Related
I am currently working on a Spring WebFlux project that connects to ElasticSearch. I have a Rest Service that in turn calls a method in the Service Layer that connects to the ES. I am having trouble writing UnitTests for my Service Layer. Any help would be appreciated as this is the first time I am working with Reactive Programming. Below are the code snippets for my Controller and Service methods.
Controller Code :
#GetMapping(path = "/api/apis/services/{id}", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
Flux<ClassA> serviceApis(#PathVariable final String serviceKey) {
return apiService.getDataForService(serviceKey);
}
Service Layer :
#PreAuthorize("isFullyAuthenticated()")
public Flux<ClassA> getDataForService(
final String id) {
IdentityToken token = GSLSecurityContext.getCurrentUserIdentityToken();
if (token == null) {
return Flux.error(new Exception("No token found"));
}
String securityQueryJson = getSecurityShould(token);
String queryToRun = QUERY
.replace("XXX_SIZE_XXX", config.getValueAsString("scroll.size"))
.replace("XXX_SECURITY_SHOULD_XXX", securityQueryJson)
.replace("XXX_SERVICE_KEY_XXX", id);
WebClient client = ClientUtil.getDataLakeWebClient(config);
Flux<ClassA> response = getData(client, queryToRun);
return response;
}
The getData code is as below :
protected Flux<ClassA> getData(
final WebClient client,
final String queryToRun) {
String scrollTimeoutQuery = "?scroll=" + config.getValueAsString("scroll.timeout");
long timeout = config.getValueAsLong("query.timout");
return Flux.generate(
() -> null,
(scrollId, sink) -> {
ClassAWrapper lastWrapper = null;
if (scrollId == null) {
Mono<ClassAWrapper> wrapper = client.post()
.uri(getSearchURI() + scrollTimeoutQuery)
.body(BodyInserters.fromObject(queryToRun)).retrieve()
.bodyToMono(ClassAWrapper.class)
.onErrorMap(original -> new Exception("Unable to retrieve from elastic search for query " + queryToRun, original))
.log();
try {
lastWrapper = wrapper.block(Duration.ofSeconds(timeout));
} catch (IllegalStateException ex) {
LOG.error("Timedout after " + timeout + " seconds while getting data from elastic search for query " + queryToRun);
lastWrapper = null;
} catch (Exception ex) {
LOG.error("Error in getting message details",ex);
lastWrapper = null;
}
} else {
String scrollQuery = "{\"scroll\" : \"" + config.getValueAsString("scroll.timeout") + "\", \"scroll_id\" : \"" + scrollId + "\"}";
Mono<ClassAWrapper> wrapper = client.post()
.uri("_search/scroll")
.body(BodyInserters.fromObject(scrollQuery)).retrieve()
.bodyToMono(ClassAWrapper.class)
.onErrorMap(original -> new Exception("Unable to retrieve next page of data from elastic search", original))
.log();
try {
lastWrapper = wrapper.block(Duration.ofSeconds(timeout));
} catch (IllegalStateException ex) {
LOG.error("Timeout after " + timeout + " seconds while getting data from elastic search for query " + queryToRun);
lastWrapper = null;
} catch (Exception ex) {
LOG.error("Error in getting message details",ex);
lastWrapper = null;
}
}
if (lastWrapper == null || lastWrapper.getResult() == null || lastWrapper.getResult().getDetails().isEmpty()) {
sink.next(new ClassA());
sink.complete();
return null;
}
sink.next(lastWrapper.getResult());
return lastWrapper.getScrollId();
}
);
}
Here, queryToRun is the ES query to be executed. config is the configuration. I need to test the method "getDataForService()".
I am trying to send an XML soap request to a dynamics nav web service. This is the XML from the WSDL. I have created a web access key and its the one in the key parameter of the XML.
<s11:Envelope xmlns:s11='http://schemas.xmlsoap.org/soap/envelope/'>
<s11:Body>
<ns1:Create xmlns:ns1='urn:microsoft-dynamics-schemas/page/customerws'>
<ns1:CustomerWS>
<ns1:Key>+gn8Nu4i7iW7D/g9vCaI8HZE5IEi1NBkTBqDp5QfXe4=</ns1:Key>
<ns1:Shipping_Advice></ns1:Shipping_Advice>
<ns1:Shipment_Method_Code></ns1:Shipment_Method_Code>
<ns1:Shipping_Agent_Code></ns1:Shipping_Agent_Code>
<ns1:Shipping_Agent_Service_Code></ns1:Shipping_Agent_Service_Code>
<ns1:Shipping_Time></ns1:Shipping_Time>
<ns1:Base_Calendar_Code></ns1:Base_Calendar_Code>
<ns1:Customized_Calendar></ns1:Customized_Calendar>
<ns1:Currency_Code></ns1:Currency_Code>
<ns1:Language_Code></ns1:Language_Code>
<ns1:VAT_Registration_No></ns1:VAT_Registration_No>
</ns1:CustomerWS>
</ns1:Create>
</s11:Body>
</s11:Envelope>
And this is the code that am using to send this request:
Console.WriteLine("We have started");
string pageName = "http://hrp-dmu.uganda.hrpsolutions.co.ug:9047/DynamicsNAV80/WS/Uganda%20Management%20Institute/Page/CustomerWS";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(pageName);
req.Method = "POST";
req.ContentType = "text/xml;charset=UTF-8";
req.ProtocolVersion = new Version(1, 1);
req.Headers.Add("SOAPAction", #"urn:microsoftdynamicsschemas/page/customerws:Create");
Console.WriteLine("After preparing request object");
string xmlRequest = GetTextFromXMLFile("E:\\tst3.xml");
Console.WriteLine("xml request : "+xmlRequest);
byte[] reqBytes = new UTF8Encoding().GetBytes(xmlRequest);
req.ContentLength = reqBytes.Length;
try
{
using (Stream reqStream = req.GetRequestStream())
{
reqStream.Write(reqBytes, 0, reqBytes.Length);
}
}
catch (Exception ex)
{
Console.WriteLine("GetRequestStreamException : " + ex.Message);
}
HttpWebResponse resp = null;
try
{
resp = (HttpWebResponse)req.GetResponse();
}
catch (Exception exc)
{
Console.WriteLine("GetResponseException : " + exc.Message);
}
string xmlResponse = null;
if (resp == null)
{
Console.WriteLine("Null response");
}
else
{
using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
{
xmlResponse = sr.ReadToEnd();
}
Console.WriteLine("The response");
Console.WriteLine(xmlResponse);
}
Console.ReadKey();
when using NavUserPassword Authentication you'll need a certificate.
See here on MSDN
Cheers!
I'm trying to post a json Object to a web api project from a windows phone app but I'm still getting 404 error. For the post method, I'm using that code:
Mail mailToCheck = new Mail();
try
{
mailToCheck.MailProfil = TxtBox_mail.Text.ToString();
string json = JsonConvert.SerializeObject(mailToCheck);
var httpClient = new System.Net.Http.HttpClient(new HttpClientHandler());
System.Net.Http.HttpResponseMessage response = await httpClient.PostAsync(new Uri("http://uri/api/Profil/CheckMail"), new StringContent(json));
var responseString = await response.Content.ReadAsStringAsync();
}
catch (Exception ex)
{
MessageBox.Show(ex.HResult.ToString());
}
The method CheckMail on my conctroller:
[HttpPost]
[Route("api/Profil/CheckMail")]
public IHttpActionResult CheckMail([FromBody]Mail MailProfil)
{
if (MailProfil.MailProfil != null)
{
try
{
bool exists = Librairie.Profils.mailExists(MailProfil.MailProfil);
return Ok(exists);
}
catch(Exception ex)
{
return InternalServerError(ex);
}
}
else
{
return BadRequest();
}
}
The Mail object is exactly the same in the app as in the web api project. Does someone can tell me what I'm doing wrong here ?
Check some samples of HttpClient.PostAsync() here: https://monkeyweekend.wordpress.com/2014/10/23/how-to-send-text-json-or-files-using-httpclient-postasync/
I have created a web service -
#Path("/info")
public class RestFulService {
#GET
#Produces(MediaType.TEXT_PLAIN)
public String getPlain()
{
return " Web Service created";
}
}
When I am accessing through localhost browser is rendering - "Web Service created".
But when I am trying to consume this web service through a different app I am getting 404 error code - "Exception in thread "main" java.lang.RuntimeException: Failed : HTTP error code : 404
at RestConsumer.main(RestConsumer.java:28)
"
Code inside RestConsumer.java -
public static void main(String[] args) {
try {
String uri = "http://localhost:8080/RestFul/rest/info";
URL url = new URL(uri);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", MediaType.TEXT_PLAIN);
conn.connect();
if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
}
conn.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
Can anyone suggest the required change.
It is a basic setting problem in Eclipse EE Refer to this Youtube link at 6:54
It gives a step by step guide to rectify the same. Hope this helpstutorial
I have a simple file upload web service as a small part of my project.
This is what I have done so far on the server side :
#POST
#Path("/file")
#Consumes(MediaType.MULTIPART_FORM_DATA)
public Response uploadFile(List<Attachment> attachments,#Context HttpServletRequest request) {
System.out.println("Got an attachment!");
for(Attachment attr : attachments) {
DataHandler handler = attr.getDataHandler();
try {
InputStream stream = handler.getInputStream();
MultivaluedMap map = attr.getHeaders();
OutputStream out = new FileOutputStream(new File("/home/yashdosi/s/" + getFileName(map))); //getFileName is a seperate private function..
int read = 0;
byte[] bytes = new byte[1024];
while ((read = stream.read(bytes)) != -1) {
out.write(bytes, 0, read);
}
stream.close();
out.flush();
out.close();
} catch(Exception e) {
e.printStackTrace();
}
}
return Response.ok("file uploaded").build();
}
It works perfectly well when requests come from html forms...when I try to send a request from a java client it simply doesnt work..!!
Any ideas about on creating a java client for this code..
Here is the code I tried with...maybe there is a simple error in this code but..I dont see it...also as I said this code simple wont work...no errors or anything else....when I tried printing something on the server console to see if the service is invoked...it did NOT print anything..so I think I am unable to contact the service for some reason...
public static void uploadPhoto()
{
String url = "http://localhost:8080/fileupload-ws/services/postdata";
String output = null;
PostMethod mPost = new PostMethod(url);
HttpClient client = new HttpClient();
try
{
File imageFile = new File("/home/yashdosi/1.jpg");
BufferedImage image = ImageIO.read(imageFile);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(image, "jpg", baos);
byte[] encodedImage = Base64.encodeBase64(baos.toByteArray());
String data = " " + " " + "" + "image/jpeg" + " " + "" + new String(encodedImage) + " " + "";
mPost.setRequestBody(data);
mPost.setRequestHeader("Content-Type", "text/xml");
client.executeMethod( mPost );
output = mPost.getResponseBodyAsString( );
mPost.releaseConnection( );
} catch (HttpException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(output);
}
Finally got a client working!!
HttpClient httpclient = new DefaultHttpClient();
try {
HttpPost httppost = new HttpPost("http://localhost:8080/fileupload-ws/services/postdata");
FileBody img = new FileBody(new File("/home/yashdosi/1.jpg"));
FileBody html = new FileBody(new File("/home/yashdosi/hotmail.html"));
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("image", img);
reqEntity.addPart("html", html);
httppost.setEntity(reqEntity);
httppost.setHeader("Content-Type", "multipart/form-data");
System.out.println("executing request " + httppost.getRequestLine());
HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (resEntity != null) {
System.out.println("Response content length: " + resEntity.getContentLength());
}
EntityUtils.consume(resEntity);
}
catch(Exception e)
{
e.printStackTrace();
}
finally {
try { httpclient.getConnectionManager().shutdown(); } catch (Exception ignore) {}
}