4
아래의 테스트 클래스를 사용하면 ///// 1 /////의 줄에 NoHttpResponseException이 표시됩니다 (질문 끝 부분에서 예외 로깅 참조). 다른 줄을 실행하면 ///// 2-to-8 ///// 헤더가 잘 인쇄됩니다. 이 버그는 HttpClient 4.3.x의 버그입니까? 아니면 잘못된 것입니까? (4.3.1과 4.3.2 모두에서 이것을 테스트했습니다)?HttpClient 4.3.x에서 특정 URL에 대해 HttpHead를 실행하면 NoHttpResponseException이 발생합니다.
import java.util.Arrays;
import org.apache.http.client.methods.*;
import org.apache.http.impl.client.*;
import org.apache.http.params.*;
public class PrintHeaders {
private static final String MONEY_SMART_URL = "https://www.moneysmart.gov.au/";
private static final String TGA_URL = "https://www.ebs.tga.gov.au/ebs/picmi/picmirepository.nsf/PICMI?OpenForm&t=&k=P";
private static final String DEFAULT_USER_AGENT = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0";
public static void main(String[] args) throws Exception {
printHeadersByHead_4_3(TGA_URL); ///// 1 /////
// printHeadersByHead_4_2(TGA_URL); ///// 2 /////
// printHeadersByGet_4_3(TGA_URL); ///// 3 /////
// printHeadersByGet_4_2(TGA_URL); ///// 4 /////
// printHeadersByHead_4_3(MONEY_SMART_URL); ///// 5 /////
// printHeadersByHead_4_2(MONEY_SMART_URL); ///// 6 /////
// printHeadersByGet_4_3(MONEY_SMART_URL); ///// 7 /////
// printHeadersByGet_4_2(MONEY_SMART_URL); ///// 8 /////
}
public static void printHeadersByHead_4_3(String docURL) {
printHeaders(new HttpHead(docURL), buildHttpClient_4_3());
}
public static void printHeadersByHead_4_2(String docURL) {
printHeaders(new HttpHead(docURL), buildHttpClient_4_2());
}
public static void printHeadersByGet_4_3(String docURL) {
printHeaders(new HttpGet(docURL), buildHttpClient_4_3());
}
public static void printHeadersByGet_4_2(String docURL) {
printHeaders(new HttpGet(docURL), buildHttpClient_4_2());
}
public static void printHeaders(HttpRequestBase req, CloseableHttpClient client) {
CloseableHttpResponse response = null;
try {
try {
response = client.execute(req);
System.out.println(Arrays.asList(response.getAllHeaders()));
} finally {
if (response != null) response.close();
if (client != null) client.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static CloseableHttpClient buildHttpClient_4_3() {
return HttpClients.custom().setUserAgent(DEFAULT_USER_AGENT).build();
}
@SuppressWarnings("deprecation")
public static CloseableHttpClient buildHttpClient_4_2() {
AbstractHttpClient httpClient = new DefaultHttpClient();
httpClient.getParams().setParameter(CoreProtocolPNames.USER_AGENT, DEFAULT_USER_AGENT);
return httpClient;
}
}
예외 추적 ///// 1 /////에서 라인을 실행 :
2014/02/17 09:36:43:857 EST [DEBUG] RequestAddCookies - CookieSpec selected: best-match
2014/02/17 09:36:43:871 EST [DEBUG] RequestAuthCache - Auth cache not set in the context
2014/02/17 09:36:43:873 EST [DEBUG] PoolingHttpClientConnectionManager - Connection request: [route: {s}->https://www.ebs.tga.gov.au:443][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 20]
2014/02/17 09:36:43:890 EST [DEBUG] PoolingHttpClientConnectionManager - Connection leased: [id: 0][route: {s}->https://www.ebs.tga.gov.au:443][total kept alive: 0; route allocated: 1 of 2; total allocated: 1 of 20]
2014/02/17 09:36:43:902 EST [DEBUG] MainClientExec - Opening connection {s}->https://www.ebs.tga.gov.au:443
2014/02/17 09:36:44:046 EST [DEBUG] HttpClientConnectionManager - Connecting to www.ebs.tga.gov.au/161.146.233.4:443
2014/02/17 09:36:45:038 EST [DEBUG] MainClientExec - Executing request HEAD /ebs/picmi/picmirepository.nsf/PICMI?OpenForm&t=&k=P HTTP/1.1
2014/02/17 09:36:45:038 EST [DEBUG] MainClientExec - Target auth state: UNCHALLENGED
2014/02/17 09:36:45:039 EST [DEBUG] MainClientExec - Proxy auth state: UNCHALLENGED
2014/02/17 09:36:45:041 EST [DEBUG] headers - http-outgoing-0 >> HEAD /ebs/picmi/picmirepository.nsf/PICMI?OpenForm&t=&k=P HTTP/1.1
2014/02/17 09:36:45:041 EST [DEBUG] headers - http-outgoing-0 >> Host: www.ebs.tga.gov.au
2014/02/17 09:36:45:041 EST [DEBUG] headers - http-outgoing-0 >> Connection: Keep-Alive
2014/02/17 09:36:45:041 EST [DEBUG] headers - http-outgoing-0 >> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0
2014/02/17 09:36:45:042 EST [DEBUG] headers - http-outgoing-0 >> Accept-Encoding: gzip,deflate
2014/02/17 09:37:00:222 EST [DEBUG] DefaultManagedHttpClientConnection - http-outgoing-0: Close connection
2014/02/17 09:37:00:222 EST [DEBUG] DefaultManagedHttpClientConnection - http-outgoing-0: Shutdown connection
2014/02/17 09:37:00:222 EST [DEBUG] MainClientExec - Connection discarded
2014/02/17 09:37:00:222 EST [DEBUG] DefaultManagedHttpClientConnection - http-outgoing-0: Close connection
2014/02/17 09:37:00:223 EST [DEBUG] PoolingHttpClientConnectionManager - Connection released: [id: 0][route: {s}->https://www.ebs.tga.gov.au:443][total kept alive: 0; route allocated: 0 of 2; total allocated: 0 of 20]
2014/02/17 09:37:00:224 EST [INFO] RetryExec - I/O exception (org.apache.http.NoHttpResponseException) caught when processing request: The target server failed to respond
2014/02/17 09:37:00:224 EST [DEBUG] RetryExec - The target server failed to respond <org.apache.http.NoHttpResponseException: The target server failed to respond>org.apache.http.NoHttpResponseException: The target server failed to respond
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:143)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260)
at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.http.impl.conn.CPoolProxy.invoke(CPoolProxy.java:138)
at com.sun.proxy.$Proxy0.receiveResponseHeader(Unknown Source)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:253)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:194)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:85)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
at PerformHttpHead.printHeaders(PrintHeaders.java:43)
at PerformHttpHead.printHeadersByHead_4_3(PrintHeaders.java:24)
at PerformHttpHead.main(PrintHeaders.java:13)
HTTP 서버의 'HEAD'프로토콜에 응답합니까? –
근본 원인이 SSL 오류 인 것처럼 보입니다. –
@BuhakeSindi 예,'///// 2 /////'에서 줄을 실행하면 알 수 있습니다. @SotiriosDelimanolis 당신은 어떤 종류의 SSL 오류를 생각하고 있습니까? 브라우저에 페이지를로드해도 인증서 경고가 나타나지 않으며 (HttpClient도 마찬가지 임) – cosjav