javax.net.ssl.SSLProtocolException: handshake alert: unrecognized_name

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服务器在请求微信接口时经常抛出错误信息如下：

javax.net.ssl.SSLProtocolException: handshake alert:  unrecognized_name        at sun.security.ssl.ClientHandshaker.handshakeAlert(ClientHandshaker.java:1292)        at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1952)        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1077)        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:275)        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:254)        at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:117)        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:314)        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)        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:72)        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:214)        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:160)        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:136)

服务器java版本：

java version "1.7.0_51"

解决办法：

在TOMCAT_HOME/bin/catalina.sh中加入-Djsse.enableSNIExtension=false设置

JAVA_OPTS="$JAVA_OPTS -Djsse.enableSNIExtension=false

重启Tomcat，问题解决

问题原因参考：

http://stackoverflow.com/questions/7615645/ssl-handshake-alert-unrecognized-name-error-since-upgrade-to-java-1-7-0/11043871#11043871

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