org.apache.http.NoHttpResponseException: api.mch.weixin.qq.com:443 failed to respond

at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:141)

at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)

at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:261)

at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:165)

at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157)

at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:272)

at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:124)

at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)

at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)

at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)