[英]how to execute the set of line in multiple thread java
我有以下課程,春季為課程創建了對象。 我創建了WebClient以使用CXF發出http請求。 我想進行2個我想在2個線程中執行的http調用,所以我不必兩次調用該方法。
@Service
public class SalesManServiceWebClient {
@Value("${vehicle.api.url}")
private String vehicleUrl;
@Value("${customer.api.url}")
private String customerUrl;
private static final Logger LOG = LoggerFactory.getLogger(SalesManServiceWebClient.class);
public List<String> getListOfDmsId(String market,STouchServiceEnum stouchService)
{
List<String> dmsIdList= new ArrayList<>();
LOG.info("---Entering getListOfDmsId webClientService---");
LOG.info("customerUrl:"+customerUrl);
final String url = getServiceUrl(stouchService);
final List<Object> providers = new ArrayList<Object>();
providers.add(new JacksonJsonProvider());
//i want this to be execute in thread
CustomerServiceProxy proxy = JAXRSClientFactory.create(url, CustomerServiceProxy.class, providers);
Client client = WebClient.client(proxy);
client.type(MediaType.APPLICATION_JSON);
//client.accept(MediaType.APPLICATION_JSON);
client.header("ST_USER", "gasid3");
client.header("Content-Type", MediaType.APPLICATION_JSON_TYPE);
LOG.info("== Invoking REST Call for service ==" + url);
//till this
//i want this to be execute in thread
VehicleServiceProxy proxy = JAXRSClientFactory.create(url, VehicleServiceProxy.class, providers);
Client client = WebClient.client(proxy);
client.type(MediaType.APPLICATION_JSON);
//client.accept(MediaType.APPLICATION_JSON);
client.header("ST_USER", "gasid3");
client.header("Content-Type", MediaType.APPLICATION_JSON_TYPE);
LOG.info("== Invoking REST Call for service ==" + url);
//till this
/*Set<String> UniqueDmsId = new HashSet<>(dmsIdList);
dmsIdList.clear();
dmsIdList.addAll(UniqueDmsId);*/
return dmsIdList;
}
private String getServiceUrl(STouchServiceEnum stouchService)
{
String url="";
switch(stouchService)
{
case CUSTOMER:
//url="http://BLRKEC327951D:8080/stouch-admin-services/api";
url=customerUrl;
//url=customerUrl.concat("/User/dmsMap");
break;
case VEHICLE:
url=vehicleUrl.concat("/User/dmsMap");;
break;
default:
break;
}
return url;
}
}
在上面的代碼中,我希望在一個線程中執行CustomerServiceProxy,然后在另一個線程中執行vehicleServiceProxy,一旦兩個線程執行完成,我想匯總結果。
有人可以幫我嗎?
您可以為此使用ExecutorService
:
ExecutorService executor = Executors.newFixedThreadPool(2);
List<Future<String>> futures = new ArrayList<>();
Future<String> future1 = executor.submit(new Callable<String>() {
@Override
public String call() throws Exception {
// Add first proxy logic here and return the results
String jaxRsOutput = /* Gather output */;
return jaxRsOutput;
}
});
futures.add(future1);
Future<String> future2 = executor.submit(new Callable<String>() {
@Override
public String call() throws Exception {
// Add second proxy logic here and return the results
String jaxRsOutput = /* Gather output */;
return jaxRsOutput;
}
});
futures.add(future2);
for (Future<String> stringFuture : futures) {
try {
// .get blocks until thread is done
String output = stringFuture.get();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
}
executor.shutdown();
這將同時執行您的邏輯並將聚合數據,直到Thread
完成。
您需要一個混合和一個聚合器。
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