HttpClient get and POST requests for Java learning experience

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HttpClient get and POST requests for Java learning experience

1. Preface
2. Get request
3. Post request

First, preface

This blog post records the Get and post requests for httpclient

This article is based on the following articles:

http://huangqiqing123.iteye.com/blog/2054436 (httpclient AddHeader and SetHeader)
http://zywang.iteye.com/blog/916834 (send get and POST requests using Apache HttpClient access JSP)
Http://www.linuxidc.com/Linux/2012-02/55502p3.htm (Detailed use of HttpClient 4.0)

Second, GET request

Examples of GET requests are as follows:

    //httpClientHttpClient HttpClient =Newdefaulthttpclient (); //Get MethodHttpGet HttpGet =NewHttpGet ("https://api.microsofthealth.net/v1/me/Summaries/Daily"); //Set HeaderString au= "Bearer" +Access_token; Httpget.setheader ("Authorization", Au); //ResponseHttpResponse response =NULL; Try{Response=Httpclient.execute (HttpGet); }Catch(Exception e) {}//get response into StringString temp= ""; Try{httpentity entity=response.getentity (); Temp=entityutils.tostring (Entity, "UTF-8"); }Catch(Exception e) {}returnTemp

Third, POST request:

Examples of GET requests are as follows:

    //httpClientHttpClient HttpClient =Newdefaulthttpclient (); //Get MethodHttpPost HttpPost =NewHttpPost ("HTTPS://LOGIN.LIVE.COM/OAUTH20_TOKEN.SRF"); //Set HeaderHttppost.setheader ("Content-type", "application/x-www-form-urlencoded"); //Set paramslist<namevaluepair> params =NewArraylist<namevaluepair>(); Params.add (NewBasicnamevaluepair ("client_id", client_id)); Params.add (NewBasicnamevaluepair ("Redirect_uri", Redirect_uri)); Params.add (NewBasicnamevaluepair ("Client_secret", Client_secret)); Params.add (NewBasicnamevaluepair ("Code",code)); Params.add (NewBasicnamevaluepair ("Grant_type", "Authorization_code")); Try{httppost.setentity (Newurlencodedformentity (params)); }Catch(Exception e) {}//ResponseHttpResponse response =NULL; Try{Response=Httpclient.execute (HttpPost); }Catch(Exception e) {}//get response into StringString temp= ""; Try{httpentity entity=response.getentity (); Temp=entityutils.tostring (Entity, "UTF-8"); }Catch(Exception e) {}returnTemp

HttpClient get and POST requests for Java learning experience