<properties> ???<httpclient.version>4.3.5</httpclient.version></properties><dependencyManagement> ???<dependencies> ???????<!-- httpclient --> ???????<dependency> ???????????<groupId>org.apache.httpcomponents</groupId> ???????????<artifactId>httpclient</artifactId> ???????????<version>${httpclient.version}</version> ???????</dependency> ???</dependencies></dependencyManagement>配置httpclient（HTTP协议的客户端编程工具包）
原文地址：https://www.cnblogs.com/yikuan-919/p/9704303.html