Question

我正在使用httpclient 4.5.2来调用代理服务器。

HttpHost proxy = new HttpHost(proxyHost, proxyPort, https);
HttpHost target = new HttpHost(ip, 443, "https");
HttpPost httppost = new HttpPost(url);
CloseableHttpResponse response = httpclient.execute(target, httppost );

以下是我得到的错误： -

 javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
        at sun.security.ssl.InputRecord.handleUnknownRecord(InputRecord.java:671)
        at sun.security.ssl.InputRecord.read(InputRecord.java:504)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:927)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323)
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
        at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:141)
        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:388)
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
        at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:117)

我是否知道此错误与证书问题有关？因为我已经将证书添加到truststore。

Answer 1

javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
我是否知道此错误与证书问题有关？因为我已经将证书添加到truststore。

这不是证书的问题。您访问的服务器没有进行正确的TLS握手。

我正在使用httpclient 4.5.2来调用代理服务器。

HTTP代理服务器上的HTTPS以纯文本HTTP CONNECT请求开始，然后建立隧道。只有在建立此隧道后，才能与原始目标服务器完成TLS握手。

HttpClient 4.5.2 - SSL证书问题

1 个答案: