4:45.994 [http-nio-8080-exec-58] ERROR c.y.f.w.e.GlobalExceptionHandler - [handleRuntimeException,65] - 请求地址'/app/pay/wxPay/api/appWxPay',发生未知异常.

com.wechat.pay.java.core.exception.HttpException: Send Http Request failed,httpRequest[{"http_method":"GET","url":"https://api.mch.weixin.qq.com/v3/certificates?algorithm_type=RSA","uri":"https://api.mch.weixin.qq.com/v3/certificates?algorithm_type=RSA","headers"

at com.wechat.pay.java.core.http.okhttp.OkHttpClientAdapter.innerExecute(OkHttpClientAdapter.java:52)

at com.wechat.pay.java.core.http.AbstractHttpClient.execute(AbstractHttpClient.java:44)

at com.wechat.pay.java.core.certificate.CertificateDownloader.download(CertificateDownloader.java:81)

Caused by: java.net.ConnectException: Failed to connect to api.mch.weixin.qq.com/240e:e1:aa00:1004:0:0:0:17:443

at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:265)

at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:183)

at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:224)

at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:108)

at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:88)