HttpClient4.3.1 Simple Getting Started instance turn

Public class Httpclienttest {

• public static void Main (String args[]) {
• //Create Httpclientbuilder
• Httpclientbuilder Httpclientbuilder = Httpclientbuilder.create ();
• //httpclient
• Closeablehttpclient closeablehttpclient = Httpclientbuilder.build ();
• HttpGet httpget = new HttpGet ("http://www.gxnu.edu.cn/default.html");
• System.out.println (Httpget.getrequestline ());
• try {
• //Execute GET request
• HttpResponse HttpResponse = Closeablehttpclient.execute (HttpGet);
• //Get Response message entity
• httpentity entity = httpresponse.getentity ();
• //Response status
• System.out.println ("Status:" + Httpresponse.getstatusline ());
• //Determine if the response entity is empty
• if (Entity! = null) {
• System.out.println ("contentencoding:" + entity.getcontentencoding ());
• SYSTEM.OUT.PRINTLN ("Response content:" + entityutils.tostring (entity));
• }
• } catch (IOException e) {
• E.printstacktrace ();
• } finally {
• try {

public class Httpclienttest {public static void main (String args[]) {//create Httpclientbuilder HTTPCLIENTBU        Ilder Httpclientbuilder = Httpclientbuilder.create ();        HttpClient closeablehttpclient closeablehttpclient = Httpclientbuilder.build ();        HttpGet httpget = new HttpGet ("http://www.gxnu.edu.cn/default.html");        System.out.println (Httpget.getrequestline ());            try {//execute GET request HttpResponse HttpResponse = Closeablehttpclient.execute (HttpGet);            Gets the response message entity httpentity entities = httpresponse.getentity ();            Response Status System.out.println ("Status:" + Httpresponse.getstatusline ()); Determines whether the response entity is empty if (entity! = null) {System.out.println ("contentencoding:" + Entity.getcontentenco                Ding ());            SYSTEM.OUT.PRINTLN ("Response content:" + entityutils.tostring (entity));        }} catch (IOException e) {e.printstacktrace (); } Finally {try { 

[Java]View Plaincopyprint?

1. //Close stream and release resources
2. Closeablehttpclient.close ();
3. } catch (IOException e) {
4. E.printstacktrace ();
5. }
6. }
7. }

                Closes the stream and frees the resource                closeablehttpclient.close ();            } catch (IOException e) {                e.printstacktrace ();}        }}    }

The following is from the HttpClient4.3.1 API Documentation: http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/ Overview-summary.html

2, Httpclientbuilder

Httpclientbuilder is used to create closeablehttpclient instances. Look at the API documentation, Abstracthttpclient, autoretryhttpclient, defaulthttpclient, etc. are deprecated, using httpclientbuilder instead.

3, Closeablehttpclient

Implementation interface: Closeable, autocloseable, HttpClient; sub-class: Abstracthttpclient

4, HttpGet

Non-thread safe; HttpGet has three constructor methods: HttpGet (), HttpGet (String uri), HttpGet (URI Uri)

5, HttpResponse

The server returns an HTTP response message after receiving and interpreting the request

     Response      = Status-line                     * ((General-header                      | Response-header                      | entity-header) CRLF)                     CRLF                     [ Message-body]

HttpClient4.3.1 Simple Getting Started instance turn