关于HttpClient的Closeable

https://blog.youkuaiyun.com/zl834205311/article/details/79847746

 

http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/HttpClient.html

 

http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/impl/client/DefaultHttpClient.html

 

https://stackoverflow.com/questions/21574478/what-is-the-difference-between-closeablehttpclient-and-httpclient-in-apache-http

总结起来：就是要加closeable；原来的httprequest不再推荐；

两者的区别其实是在 try-with结构中不再需要close；

另外；httpclient本身是一个线程不安全的client

 

另外：以下两块代码必须一一对应，否则就可能出现建立的client被提前关闭的情况

//创建HttpClientBuilder
HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
//HttpClient
CloseableHttpClient closeableHttpClient = httpClientBuilder.build();

try {                //关闭流并释放资源
    closeableHttpClient.close();
} catch (IOException e) {
    //e.printStackTrace();
   
   }