html - How to send HTTP request in java? -


this question has answer here:

in java, how compose http request message , send http webserver?

you can use java.net.httpurlconnection.

example (from here), improvements. included in case of link rot:

public static string executepost(string targeturl, string urlparameters) {   httpurlconnection connection = null;    try {     //create connection     url url = new url(targeturl);     connection = (httpurlconnection) url.openconnection();     connection.setrequestmethod("post");     connection.setrequestproperty("content-type",          "application/x-www-form-urlencoded");      connection.setrequestproperty("content-length",          integer.tostring(urlparameters.getbytes().length));     connection.setrequestproperty("content-language", "en-us");        connection.setusecaches(false);     connection.setdooutput(true);      //send request     dataoutputstream wr = new dataoutputstream (         connection.getoutputstream());     wr.writebytes(urlparameters);     wr.close();      //get response       inputstream = connection.getinputstream();     bufferedreader rd = new bufferedreader(new inputstreamreader(is));     stringbuilder response = new stringbuilder(); // or stringbuffer if java version 5+     string line;     while ((line = rd.readline()) != null) {       response.append(line);       response.append('\r');     }     rd.close();     return response.tostring();   } catch (exception e) {     e.printstacktrace();     return null;   } {     if (connection != null) {       connection.disconnect();     }   } }

Comments

Post a Comment

Popular posts from this blog

What is happening when Matlab is starting a "parallel pool"? -

running parallel cpu processes in matlab starts command parpool() according documentation , function: [creates] special job on pool of workers, , [connects] matlab client parallel pool. this function takes bit of time execute, on order of 30 seconds. in other multi-cpu paradigms openmp, parallel execution seems totally transparent -- i've never noticed behavior analogous matlab (granted i'm not experienced parallel programming). so, happening between time parpool() called , when finishes executing? takes long? parallel computing toolbox enables run matlab code in parallel using several different paradigms (e.g. jobs , tasks, parfor , spmd , parfeval , batch processing), , run either locally (parallelised across cores in local machine) or remotely (parallelised across machines in cluster - either 1 own, or 1 in cloud). in of these cases, code run on matlab workers , copies of matlab without interactive desktop. if you're intending run on remo...
Read more

php - Cannot override Laravel Spark authentication with own implementation -

during login process of laravel spark need request token of remote api. api stores exact same users , passwords laravel spark application. therefore need username , non hashed password of user during authentication process. i thought overriding authenticated method solution problem. in routes/web.php override post /login endpoint , pointing endpoint own logincontroller: <?php namespace app\http\controllers\auth; use illuminate\support\facades\log; use illuminate\http\request; use laravel\spark\http\controllers\auth\logincontroller sparklogincontroller; class logincontroller extends sparklogincontroller { /** * create new login controller instance. * * @return void */ public function __construct() { parent::__construct(); } /** * handle successful authentication attempt. * * @param request $request * @param \illuminate\contracts\auth\authenticatable $user * @return response */ public fu...
Read more

angular - DownloadURL return null in below code -

when change file updated in firebase storage when try downloadurl show null. filechange(event: any) { const imagefolder: string = this.employee.id; const filelist: filelist = event.target.files; const file: file = filelist[0]; const storageref = firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file); console.log(storageref.snapshot.downloadurl); } the put() asynchronous. if want url after file uploaded have this: firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file).then((snapshot) => { storageref = snapshot.downloadurl: console.log(snapshot.downloadurl); });
Read more