Jmeter定制化开发

女爷i 2021-10-18 17:31 487阅读 0赞

**1、什么是定制化开发**  
本人理解的定制化，是将原有的开源代码，下载并配置好环境，在原有的基础上进行改造，加上符合自己业务或者技术需要，进行开发的工具，或者平台，开发出来提供自己或者同学使用。由于测试STOMP协议的，进行收发消息等逻辑，进行TPS测试。

**2、Jmeter作为开源工具、我们改相应的代码，可以实现相关业务的或者技术的实现、具体修改为如图所示：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70]  
**3、其实还有一种方法，就是创建maven项目**  
new——>project——>如下图所示：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70 1]  
然后将jmeter的lib中的ext下的三个jar包加入项目中，因为需要依赖、不然报错，如下图所示：![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70 2]  
将jmeter的src下面的项目protocol目录的TCP拷贝到![在这里插入图片描述][20190812222204619.png]  
此目录下面，因为性能测试需要tcp请求，所有需要此模块。然后在sampler目录下创建TCPSampler.java，进行打包放入![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70 3]  
目录下，重新启动jmeter，然后添加线程组与监听器、将自己的修改的监听器，填写ip与端口，进行请求。代码如下：

import java.lang.reflect.Type;
    import java.nio.charset.Charset;
    import java.time.Instant;
    import java.time.temporal.ChronoUnit;
    import java.util.Map;
    import java.util.concurrent.CompletableFuture;
    import java.util.concurrent.CountDownLatch;
    import java.util.concurrent.ExecutionException;
    import java.util.concurrent.ScheduledThreadPoolExecutor;
    import java.util.concurrent.TimeUnit;
    import java.util.concurrent.TimeoutException;
    import java.util.concurrent.atomic.AtomicInteger;
    import lombok.Getter;
    import lombok.extern.slf4j.Slf4j;
    import net.jodah.concurrentunit.Waiter;
    import org.apache.tomcat.util.codec.binary.Base64;
    import org.junit.After;
    import org.junit.Before;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
    import org.springframework.boot.web.server.LocalServerPort;
    import org.springframework.http.HttpHeaders;
    import org.springframework.messaging.simp.stomp.StompFrameHandler;
    import org.springframework.messaging.simp.stomp.StompHeaders;
    import org.springframework.messaging.simp.stomp.StompSession;
    import org.springframework.messaging.simp.stomp.StompSession.Subscription;
    import org.springframework.messaging.simp.stomp.StompSessionHandlerAdapter;
    import org.springframework.scheduling.TaskScheduler;
    import org.springframework.test.context.junit4.SpringRunner;
    import org.springframework.web.client.RestTemplate;
    import org.springframework.web.socket.WebSocketHttpHeaders;
    import org.springframework.web.socket.client.standard.StandardWebSocketClient;
    import org.springframework.web.socket.messaging.WebSocketStompClient;
    
    @RunWith(SpringRunner.class)
    @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
    @Slf4j
    public class PerformanceIssueApplicationTests {
    
    	private static final int TIMEOUT = 6;
    	private static final int NUMBER_OF_CLIENTS = 2000;
    	private static final int RAMPUP = 100;
    	private static final int SESSION_LENGTH_IN_SECONDS = 720;
    	private static final int MESSAGE_PER_MIN = 15;
    
    	@LocalServerPort
    	private int randomServerPort;
    
    	@Autowired
    	private TaskScheduler messageBrokerTaskScheduler;
    
    	private String hostPort;
    
    	private ScheduledThreadPoolExecutor executor;
    
    	@Before
    	public void setup() {
    		hostPort = "localhost:" + randomServerPort;
    		executor = new ScheduledThreadPoolExecutor(NUMBER_OF_CLIENTS * 2);
    	}
    
    	@After
    	public void cleanup() {
    		executor.shutdown();
    	}
    
    	@Test
    	public void TestWithMultipleClients() throws Exception {
    
    		Waiter waiter = new Waiter();
    
    		AtomicInteger threadCounter = new AtomicInteger();
    
    		int newThreadRateInMilliseconds = (int) (((double) RAMPUP / (double) NUMBER_OF_CLIENTS) * 1000);
    
    		// We start one thread per user. (This is not accurate the NUMBER_OF_CLIENTS, but its amount is controlled by
    		// the newThreadRateInMilliseconds combined with the waiter.await() call)
    		executor.scheduleAtFixedRate(() -> {
    			int threadCount = threadCounter.getAndIncrement();
    			log.warn("Start Thread "+ threadCount);
    			try {
    				playOneClient(waiter, threadCount);
    			} catch (Exception e) {
    				log.error("Exception caught", e);
    			}
    		}, 0, newThreadRateInMilliseconds, TimeUnit.MILLISECONDS);
    
    		waiter.await(TIMEOUT + SESSION_LENGTH_IN_SECONDS + RAMPUP, TimeUnit.SECONDS, NUMBER_OF_CLIENTS);
    	}
    
    	private void playOneClient(Waiter waiter, int threadCount)
    			throws InterruptedException, ExecutionException, TimeoutException {
    		// Register new client
    		RestTemplate restTemplate = new RestTemplate();
    		Map<String, String> response = restTemplate.getForObject("http://" + hostPort + "/v3/login", Map.class);
    		String username = response.get("username");
    		String password = response.get("password");
    
    		//Establish Websocket Connection
    		WebSocketStompClient stompClient = new WebSocketStompClient(new StandardWebSocketClient());
    		stompClient.setTaskScheduler(messageBrokerTaskScheduler);
    		stompClient.setDefaultHeartbeat(new long[]{0,0});
    		HttpHeaders httpHeaders = createHeaders(username, password);
    		WebSocketHttpHeaders webSocketHttpHeaders = new WebSocketHttpHeaders(httpHeaders);
    		StompSession stompSession = stompClient
    				.connect("ws://" + hostPort + "/stomp-websocket", webSocketHttpHeaders, new StompSessionHandlerAdapter() {})
    				.get(TIMEOUT, TimeUnit.SECONDS);
    
    		//Subscribe to user queue
    		StompHeaders stompHeaders = new StompHeaders();
    		stompHeaders.setDestination("/v3/callback");
    		stompHeaders.setReceipt("r1");
    
    		FrameHandler frameHandler = new FrameHandler();
    		Subscription subscription = stompSession.subscribe(stompHeaders, frameHandler);
    
    		CountDownLatch latch = new CountDownLatch(1);
    		subscription.addReceiptTask(latch::countDown);
    		latch.await(TIMEOUT, TimeUnit.SECONDS);;
    
    		sendTestMessage(waiter, stompSession, frameHandler, Instant.now().plus(SESSION_LENGTH_IN_SECONDS, ChronoUnit.SECONDS),
    			threadCount);
    
    	}
    
    	private void sendTestMessage(Waiter waiter, StompSession stompSession, FrameHandler frameHandler, Instant endTime,
    			int threadCount) {
    		executor.schedule(() -> {
    			stompSession.send("/v3/test", null);
    			String result = null;
    			try {
    				result = frameHandler.readResult();
    			} catch (Exception e) {
    				waiter.fail(e);
    			}
    			waiter.assertTrue("foo".equals(result));
    
    			// We either schedule a new execution of the test message...
    			if (endTime.isAfter(Instant.now())) {
    				sendTestMessage(waiter, stompSession, frameHandler, endTime, threadCount);
    			} else { // ... or disconnect the client and call waiter.resume() to indicate a success.
    				stompSession.disconnect();
    				waiter.resume();
    				log.warn("Finished Thread " + threadCount);
    			}
    		}, (60 / MESSAGE_PER_MIN), TimeUnit.SECONDS);
    	}
    
    	// For authentication
    	HttpHeaders createHeaders(String username, String password) {
    		return new HttpHeaders() {
       {
    			String auth = username + ":" + password;
    			byte[] encodedAuth = Base64.encodeBase64(
    					auth.getBytes(Charset.forName("US-ASCII")));
    			String authHeader = "Basic " + new String(encodedAuth);
    			set("Authorization", authHeader);
    		}};
    	}
    
    	/**
    	 * Simple frame handler that populates it completableFuture by the received payload.
    	 */
    	class FrameHandler implements StompFrameHandler {
    
    		@Getter
    		private CompletableFuture<String> completableFuture = new CompletableFuture<>();
    
    		@Override
    		public Type getPayloadType(StompHeaders headers) {
    			return Object.class;
    		}
    
    		@Override
    		public void handleFrame(StompHeaders headers, Object payload) {
    			completableFuture.complete(new String((byte[]) payload));
    		}
    
    		/**
    		 * Reads the result of the completableFuture and resets it in order to receive the next frame.
    		 */
    		String readResult() throws InterruptedException, ExecutionException, TimeoutException {
    			String result = completableFuture.get(TIMEOUT, TimeUnit.SECONDS);
    			completableFuture = new CompletableFuture<>();
    			return result;
    		}
    	}
    
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70]: /images/20211018/396def949953424a9778fd4189d42546.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70 1]: /images/20211018/8f045642dbe54e27840a1b448bbae1b1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70 2]: /images/20211018/c01ca8b2356d484b90543ad59d527a15.png
[20190812222204619.png]: /images/20211018/5a415585bc834dea96fcadb144406865.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNDQ3MzAx_size_16_color_FFFFFF_t_70 3]: /images/20211018/29506c20120a42469d7fd2e2ca4e5302.png