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在project-1中新建controller，TestController.java内容如下：
@RestController
@Slf4j
public class TestController {
@GetMapping("/test")
public String test() {
return "test";
}
}需要依赖Slf4j包，需要在pom.xml文件中添加依赖：
org.projectlombok lombok 1.18.6
在postman工具中新建collection：
并将测试url添加到这个collection中，点击run，然后配置：
下载地址：https://www.apachelounge.com/download/
ab -n 1000 -c 50 http://localhost:8080/test
输出结果如下：
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表示本次测试的总数为100个
-c 50表示本次请求的并发数是50
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