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我打電話一些HTTPS的Web服務，它下面的客戶端：PKIX路徑建設失敗：無法找到有效的認證路徑要求的目標
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
/**
* Handles http and https connections. It sends XML request over http (or https)
* to SOAP web service and receive the XML reply.
*
* @author mhewedy
* @date 30.10.2010
*/
public class HttpWSXmlClient
{
private final String ws_url;
private byte[] requestData;
public HttpWSXmlClient(String wsUrl)
{
this.ws_url = wsUrl;
}
public void readRequest(String xmlRequestFilePath)
{
try
{
InputStream istream = new FileInputStream(xmlRequestFilePath);
byte[] data = stream2Bytes(istream);
istream.close();
this.requestData = data;
} catch (Exception e)
{
throw new RuntimeException(e.getMessage());
}
}
/**
*
* @param ps
* PrintStream object to send the debugging info to.
* @return
* @throws IOException
*/
public byte[] sendAndRecieve(PrintStream ps) throws IOException
{
if (requestData == null)
throw new RuntimeException(
"the request data didn't initialized yet.");
if (ps != null)
ps.println("Request:\n" + new String(requestData));
URL url = new URL(ws_url);
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
// or HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("content-type", "text/xml");
connection.connect();
OutputStream os = connection.getOutputStream();
os.write(requestData);
InputStream is = connection.getInputStream();
byte[] rply = stream2Bytes(is);
if (ps != null)
ps.println("Response:\n" + new String(rply));
os.close();
is.close();
connection.disconnect();
return rply;
}
public byte[] sendAndRecieve() throws IOException
{
return sendAndRecieve(null);
}
private byte[] stream2Bytes(InputStream istream) throws IOException
{
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
int c;
while ((c = istream.read()) != -1)
{
if (c != 0x0A && c != 0x0D) // prevent new line character from being
// written
{
if (c == 0x09)
c = 0x20; // prevent tab character from being written,
// instead write single space char
outstream.write(c);
}
}
byte[] ret = outstream.toByteArray();
outstream.close();
return ret;
}
}
測試：
public class Test
{
private static final String WS_URL = "https://some_server/path/to/ws";
public static void main(String[] args) throws Exception
{
HttpWSXmlClient client = new HttpWSXmlClient(WS_URL);
client.readRequest("request.xml");
client.sendAndRecieve(System.out);
}
}
我得到了以下的輸出：
Exception in thread "Main Thread" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:174)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1591)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:187)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:181)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1035)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:124)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1096)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1123)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1107)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:415)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:133)
at com.se.swstest.HttpWSXmlClient.sendAndRecieve(HttpWSXmlClient.java:63)
at com.se.swstest.Test.main(Test.java:11)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:285)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:191)
at sun.security.validator.Validator.validate(Validator.java:218)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:126)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:209)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:249)
at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1014)
... 12 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:174)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:238)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:280)
... 18 more
我需要將任何證書放在jdk/jre/lib/security？ 另外，我有一個xxx_IE.crt和xxx_FX.crt（分別適用於Firefox和IE，並且它們不適用於上述Java客戶端，因此我需要爲Java客戶端指定一個特定證書嗎？
謝謝。
這可能會幫助：http://stackoverflow.com/questions/9210514/unable-to-find-valid-certification-path-to-requested-target-error-even-after-c – yegor256 2012-10-31 07:14:06