HttpComponents

Commons HttpClient

HttpClient

HttpComponents

的关系是

旧的httpclient是属于Commons HttpClient项目的,不过此项目已不再更新,也就是httpclient3以前.

之后httpcore,httpclient,httpasynceclient.都隶属于HttpComponents项目

httpclient4以及之后的版本,指的都是HttpComponents下面的HttpClient.

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpclient</artifactId>
  <version>4.3</version>
</dependency>
    
<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpasyncclient</artifactId>
  <version>4.0</version>
</dependency>