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我在嘗試更改實現DefaultResponseErrorHandler的RestTemplate的默認行爲。我有以下代碼：如何讓RestTemplate永遠不會拋出異常
@Override
public boolean hasError(ClientHttpResponse response) throws IOException{
return false;
}
@Override
public void handleError(ClientHttpResponse response) throws IOException {
}
當我做一個HTTP請求到我的令牌端點：
RestTemplate restTemplate = new RestTemplate();
restTemplate.setErrorHandler(new NoOpResponseHandler());
HttpEntity<MultiValueMap<String, Object>> request = initRequest();//a function to retrieve the proper headers of my api
String oauthUrl = buildUrl("/oauth/token");//this just builds my URL
// ResponseEntity<?> entity = restTemplate.postForEntity(oauthUrl,
// request, AccessToken.class);
ResponseEntity<?> entity = restTemplate.exchange(oauthUrl, HttpMethod.POST, request, String.class);
我NoOpResponseHandler代碼：
package com.my.test.util;
import java.io.IOException;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.web.client.ResponseErrorHandler;
public class NoOpResponseHandler implements ResponseErrorHandler {
@Override
public boolean hasError(ClientHttpResponse response) throws IOException{
return false;
}
@Override
public void handleError(ClientHttpResponse response) throws IOException {
}
}
堆棧跟蹤：
org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://localhost:9001/oauth/token": cannot retry due to server authentication, in streaming mode; nested exception is java.net.HttpRetryException: cannot retry due to server authentication, in streaming mode
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:666)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:613)
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:531)
at com.resson.test.login.LoginSteps.lambda$7(LoginSteps.java:73)
at ✽.Then the login is unsuccessful(features/01-login.feature:19)
Caused by: java.net.HttpRetryException: cannot retry due to server authentication, in streaming mode
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1674)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at org.springframework.http.client.SimpleClientHttpResponse.getRawStatusCode(SimpleClientHttpResponse.java:52)
at org.springframework.http.client.AbstractClientHttpResponse.getStatusCode(AbstractClientHttpResponse.java:33)
at org.springframework.web.client.MessageBodyClientHttpResponseWrapper.getStatusCode(MessageBodyClientHttpResponseWrapper.java:121)
at org.springframework.web.client.MessageBodyClientHttpResponseWrapper.hasMessageBody(MessageBodyClientHttpResponseWrapper.java:59)
at org.springframework.web.client.HttpMessageConverterExtractor.extractData(HttpMessageConverterExtractor.java:82)
at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:917)
at org.springframework.web.client.RestTemplate$ResponseEntityResponseExtractor.extractData(RestTemplate.java:901)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:655)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:613)
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:531)
at com.resson.test.login.LoginSteps.lambda$7(LoginSteps.java:73)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at cucumber.runtime.Utils$1.call(Utils.java:40)
at cucumber.runtime.Timeout.timeout(Timeout.java:16)
at cucumber.runtime.Utils.invoke(Utils.java:34)
at cucumber.runtime.java.Java8StepDefinition.execute(Java8StepDefinition.java:115)
at cucumber.runtime.StepDefinitionMatch.runStep(StepDefinitionMatch.java:37)
at cucumber.runtime.Runtime.runStep(Runtime.java:300)
at cucumber.runtime.model.StepContainer.runStep(StepContainer.java:44)
at cucumber.runtime.model.StepContainer.runSteps(StepContainer.java:39)
at cucumber.runtime.model.CucumberScenario.run(CucumberScenario.java:44)
at cucumber.runtime.junit.ExecutionUnitRunner.run(ExecutionUnitRunner.java:102)
at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:63)
at cucumber.runtime.junit.FeatureRunner.runChild(FeatureRunner.java:18)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at cucumber.runtime.junit.FeatureRunner.run(FeatureRunner.java:70)
at cucumber.api.junit.Cucumber.runChild(Cucumber.java:95)
at cucumber.api.junit.Cucumber.runChild(Cucumber.java:38)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at cucumber.api.junit.Cucumber.run(Cucumber.java:100)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
響應狀態是狀態401（未經授權）。另一方面，在響應狀態400（錯誤請求）上，不會拋出異常。
關於如何使它永遠不會拋出異常的任何想法？