Javax.net.ssl.SSLException:Unrecognized SSL message, plaintext connection

SSL one-way authentication and SSL bidirectional authentication when the client sends data to the server in two cases

1.SSL One-way verification

The code is as follows:

Java code

2. Import java.io.IOException;
4. Import Java.util.HashMap;
6. Import Java.util.Map;
10. Import org.apache.commons.httpclient.HttpClient;
12. Import org.apache.commons.httpclient.HttpException;
14. Import Org.apache.commons.httpclient.HttpStatus;
16. Import Org.apache.commons.httpclient.NameValuePair;
18. Import Org.apache.commons.httpclient.methods.PostMethod;
20. Import Org.apache.commons.httpclient.params.HttpClientParams;
22. Import Org.apache.commons.httpclient.params.HttpMethodParams;
24. Import Org.apache.commons.logging.Log;
26. Import Org.apache.commons.logging.LogFactory;
30. Public class Clientsenddata {
32. static Log log = Logfactory.getlog (clientsenddata.   Class);
36. private String Url;
40. //Initialize data
42. Public Clientsenddata () {
44. URL = "Https://test.yihaodian.com:8443/ims/feedbackToPingAn_getData.action";
46. }
50. Public string SendData (String data) {
52. String receiveddata = null;
54. try {
58. map<string, string> paramsdata = new hashmap<string, string> ();
60. Paramsdata.put ("data", data);
62. Receiveddata = Send (URL, paramsdata);
64. } catch (Exception e) {
66. E.printstacktrace ();
68. }
70. return receiveddata;
72. }
76. public static string send (string URL, map<string, string> paramsmap) {
78. String result = null;
80. Postmethod Postmethod = null;
82. HttpClient HttpClient = new HttpClient ();
86. Httpclient.getparams (). Setparameter (
88. Httpmethodparams.http_content_charset, "Utf-8");
90. Postmethod = new Postmethod (URL);
94. if (paramsmap! = null && paramsmap.size () > 0) {
96. namevaluepair[] datas = new Namevaluepair[paramsmap.size ()];
98. int index = 0;
100. For (String Key:paramsMap.keySet ()) {
102. datas[index++] = new Namevaluepair (Key, Paramsmap.get (key));
104. }
106. Postmethod.setrequestbody (datas);
110. }
114. Httpclientparams httparams = new Httpclientparams ();
116. Httparams.setsotimeout (60000);
118. Postmethod.setparams (Httparams);
122. try {
124. int statusCode = Httpclient.executemethod (Postmethod);
126. if (StatusCode = = HTTPSTATUS.SC_OK) {
128. result = Postmethod.getresponsebodyasstring ();
130. Log.info ("sent successfully!  ");
132. } Else {
134. Log.error ("HTTP response status is" + StatusCode);
136. }
140. } catch (HttpException e) {
142. Log.error ("error url=" + URL, e);
144. } catch (IOException e) {
146. Log.error ("error url=" + URL, e);
148. } finally {
150. if (postmethod! = null) {
152. Postmethod.releaseconnection ();
154. }
156. }
160. return result;
162. }
166. public static void Main (string[] args) {
168. Clientsenddata t = new Clientsenddata ();
170. T.senddata ("Test SSL single connection, send data to the server!");
172. }
174. }

Exceptions that may occur

1.java.net.connectexception:connection Refused:connect

Server does not start

2. Javax.net.ssl.SSLHandshakeException:sun.security.validator.ValidatorException:PKIX Path Building failed

The certificate on the server side is not trustworthy. Workaround See this article http://zhuyuehua.iteye.com/blog/1102347

3.java.net.socketexception:software caused connection Abort:recv failed

This is because the server is configured with SSL two-way authentication, and the client sends the data according to the one-way authentication, that is, the client certificate information is not sent to the service side.

4.org.apache.commons.httpclient.nohttpresponseexception

This is generally the cause of the server-side firewall. The client request was intercepted.

Additionally, this issue occurs when the server is overloaded.

5.javax.net.ssl.sslhandshakeexception:remote host closed connection during handshake

This is because the server is configured with SSL two-way authentication, and the client sends the data according to the one-way authentication, that is, the client certificate information is not sent to the service side. When the server authenticates the client certificate, it discovers that the client does not have a certificate and then disconnects the handshake.

2.SSL bidirectional authentication

Two-way verification, temporarily do not know how to send data with httpclient, such as the need for two-way verification when sending data, refer to my other articles. In addition, you have to know how httpclient in two-way verification to send data, please advise.

Javax.net.ssl.SSLException:Unrecognized SSL message, plaintext connection