java高併發（五）併發模擬
阿新 • • 發佈：2019-08-15
在project-1中新建controller，TestController.java內容如下：
@RestController
@Slf4j
public class TestController {
@GetMapping("/test")
public String test() {
return "test";
}
}
需要依賴Slf4j包，需要在pom.xml檔案中新增依賴：
<dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.6</version> </dependency>
POSTMAN工具測試
在postman工具中新建collection：
並將測試url新增到這個collection中，點選run，然後配置：
Apache bench工具
下載地址：https://www.apachelounge.com/download/
ab -n 1000 -c 50 http://localhost:8080/test
輸出結果如下：
C:\Users\vincent>ab -n 1000 -c 50 http://localhost:8080/test This is ApacheBench, Version 2.3 <$Revision: 1843412 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Completed 1000 requests Finished 1000 requests Server Software: Server Hostname: localhost Server Port: 8080 Document Path: /test Document Length: 4 bytes Concurrency Level: 50 Time taken for tests: 0.673 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 136000 bytes HTML transferred: 4000 bytes Requests per second: 1486.74 [#/sec] (mean) Time per request: 33.631 [ms] (mean) Time per request: 0.673 [ms] (mean, across all concurrent requests) Transfer rate: 197.46 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.3 0 1 Processing: 1 19 19.8 15 291 Waiting: 0 16 16.7 12 278 Total: 1 20 19.8 15 292 Percentage of the requests served within a certain time (ms) 50% 15 66% 19 75% 23 80% 24 90% 33 95% 62 98% 84 99% 99 100% 292 (longest request)
-n 1000表示本次測試的總數為100個
-c 50表示本次