里面是java用来开发微信支付的所用jar包，org.apache.http.HttpEntity;org.apache.http.HttpResponse;org.apache.http.client.HttpClient;org.apache.http.client.config.RequestConfig;org.apache.http.client.methods.HttpPost;org.apache.http.config.RegistryBuilder;org.apache.http.conn.socket.ConnectionSocketFactory;org.apache.http.conn.socket.Pla