parallele Anfrage mit JSR223 Sampler (Jmeter)

Question

Ich versuche, den folgenden Code (von Dmitri) in JMeter 3.0 zu verwenden, jedoch bin ich bei der Ausführung nicht erfolgreich. Mein Ziel ist parallelen API-Aufrufe simulieren.

Irgendeine Idee, warum es scheitert? Code:

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.methods.HttpGet; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.apache.http.util.EntityUtils; 

import java.util.ArrayList; 
import java.util.List; 
import java.util.concurrent.ExecutorService; 
import java.util.concurrent.Executors; // necessary imports 


List<String> urls = new ArrayList<String>(); // initialize array of URLs 
Collections.addAll(urls,args); // read URLs from "Parameters" input and add them to array 
ExecutorService pool = Executors.newFixedThreadPool(urls.size()); // initialize pool of Future Tasks with number of threads equal to size of URLs provided 
for (String url : urls) { // for each URL from list 
    final String currentURL = url; 
    pool.submit(new Runnable() { // Sumbit a new thread which will execute GET request 

     @Override 
     public void run() { 
      try { 
       HttpClient client = new DefaultHttpClient(); // Use Apache Commons HTTPClient to perform GET request 
    HttpGet get = new HttpGet(currentURL); 
    HttpResponse response = client.execute(get); 
HttpEntity entity = response.getEntity(); 
EntityUtils.consume(entity); 
      } catch (Exception ex) { 
       ex.printStackTrace(); 
      } 

     } 
    }); 
} 
pool.shutdown(); // shut down thread pool 

Fehler geworfen ist (ich habe 2 Beispiel Hosts im Parameterfeld jsr223 Sampler verwenden):

java.lang.IllegalStateException: Target host is null 
     at org.apache.http.util.Asserts.notNull(Asserts.java:52) 
     at org.apache.http.impl.conn.DefaultHttpRoutePlanner.determineRoute(DefaultHttpRoutePlanner.java:99) 
     at org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:763) 
     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:382) 
     at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:884) 
     at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) 
     at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) 
     at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) 
     at org.apache.http.client.HttpClient$execute.call(Unknown Source) 
     at Script3$1.run(Script3.groovy:26) 
     at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) 
     at java.util.concurrent.FutureTask.run(Unknown Source) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
     at java.lang.Thread.run(Unknown Source) 

Answer 1

Der Code sieht ok

1. Vergewissern Sie sich, groovy Wählen Sie im Drop-down "Sprache"

2. Stellen Sie sicher, dass Sie mindestens 1 angeben URL im Abschnitt "Parameter" (einschließlich Protokoll, http oder https). Wenn Sie> 1 url verwenden - trennen sie durch Leerzeichen, dh

   http://url1/path http://url2/path2 
   

Demo:

Quelle: How to Load Test AJAX/XHR Enabled Sites With JMeter

Answer 2

@DMC versuchen Sie:

pool.awaitTermination(60, TimeUnit.SECONDS); after pool.shurdown();

es wird Ihnen die richtige Reaktionszeit geben