性能工具之locust工具get与post请求

Posted 2021-09-07 ZeeBJ

最近在学习 locust 性能工具，发现locust性能工具脚本需要python基础才能写脚本，但是对于性能测试人员来说 python 是基本功夫。

在 locust 中get脚本怎么写，为了方便直接在代码运行调试，采用关闭web模式，通过参考官方文档自己实验get/post代码，参考代码如：
@task(1)

def get_7dTest(self):
    # 定义请求头
    header = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (Khtml, like Gecko) Chrome/69.0.3497.100 Safari/537.36"}
    response = self.client.get("/7d/", headers=header, verify=False)
    # print("Response status code:", response.status_code)
    if response.status_code == 200:
        print("successful")
        # print("Response text:", response.json())
    else:
        print(\'failure\')

post请求写法如下
# 登陆

@task(1)
def get_login(self):
    response = self.client.post("/login", {"userName": "7d", "passWord": "123456"})
    print("Response json:", response.json())

结果：

结果：

[2021-04-24 21:36:49,495] liwen.local/INFO/locust.main: Run time limit set to 1 seconds
[2021-04-24 21:36:49,495] liwen.local/INFO/locust.main: Starting Locust 1.4.4
[2021-04-24 21:36:49,496] liwen.local/INFO/locust.runners: Spawning 1 users at the rate 1 users/s (0 users already running)...
[2021-04-24 21:36:49,496] liwen.local/INFO/locust.runners: All users spawned: webTestDunShan: 1 (1 total running)
[2021-04-24 21:36:49,496] liwen.local/INFO/root: Terminal was not a tty. Keyboard input disabled

Name # reqs # fails | Avg Min Max Median | req/s failures/s

---

Aggregated 0 0(0.00%) | 0 0 0 0 | 0.00 0.00

Response json: {\'msg\': \'success\', \'code\': 0, \'data\': \'登陆成功\'}
successful
Response json: {\'msg\': \'success\', \'code\': 0, \'data\': \'登陆成功\'}
Response json: {\'msg\': \'success\', \'code\': 0, \'data\': \'登陆成功\'}
Response json: {\'msg\': \'success\', \'code\': 0, \'data\': \'登陆成功\'}
Response json: {\'msg\': \'success\', \'code\': 0, \'data\': \'登陆成功\'}

post请求json请求写法：
@task(1)

def get_login_json(self):
    jsonData = {"userName": "7d", "passWord": "123456"}
    response = self.client.post("/login/json", json=json.dumps(jsonData))
    print("Response json:", response.json())

结果

Response json: {\'msg\': \'success\', \'code\': 0, \'data\': \'登陆成功\'}

实验请求资源代码：

@GetMapping("/7d")
@ResponseBody
public R indexPage() {
    HashMap<String, Object> map = new HashMap<>();
    map.put("success", "欢迎来到性能实战课堂");
    map.put("Data", new Date());
    return R.ok().put("data", map);
}

/**

 * 登陆
 *
 * @param memberEntity
 * @return
 */
@PostMapping("/login")
@ResponseBody
public R login(MemberEntity memberEntity) {

    if ("7d".equals(memberEntity.getUserName()) && "123456".equals(memberEntity.getPassWord())) {
        return R.ok().put("data", "登陆成功");
    }
    return R.error().put("data", "用户名或者密码失败");
}


/**
 * 登陆
 *
 * @param requestBody
 * @return
 */
@PostMapping(value = "/login/json", produces = "application/json")
@ResponseBody
public R login_json(@RequestBody String requestBody) {
    log.info("json数据：{}", requestBody);
    Object parse = JSON.parse(requestBody);
    MemberEntity memberEntity = JSON.parseObject(parse.toString(), MemberEntity.class);
    if ("7d".equals(memberEntity.getUserName()) && "123456".equals(memberEntity.getPassWord())) {
        return R.ok().put("data", "登陆成功");
    }
    return R.error().put("data", "用户名或者密码失败");
}

locust直接在 python 代码调试代码关闭web页面，这样调试很方便，参考如下命令：

os.system("locust -f demoLcou.py --host=http://127.0.0.1:8080 --headless -u 1 -r 1 -t 1s")
# –no-web 表示不使用Web界面运行测试。
# -c 设置虚拟用户数。
# -r 设置每秒启动虚拟用户数。
# -t 设置设置运行时间。

# 结果参考：
[2021-04-24 22:23:59,688] liwen.local/INFO/locust.main: Run time limit set to 1 seconds
[2021-04-24 22:23:59,688] liwen.local/INFO/locust.main: Starting Locust 1.4.4
[2021-04-24 22:23:59,688] liwen.local/INFO/locust.runners: Spawning 1 users at the rate 1 users/s (0 users already running)...
[2021-04-24 22:23:59,688] liwen.local/INFO/locust.runners: All users spawned: webTestDunShan: 1 (1 total running)
[2021-04-24 22:23:59,689] liwen.local/INFO/root: Terminal was not a tty. Keyboard input disabled

Name                   # reqs      # fails  |     Avg     Min     Max  Median  |   req/s failures/s

---

---

Aggregated 0 0(0.00%) | 0 0 0 0 | 0.00 0.00

successful
Response json: {\'msg\': \'未知异常，请联系管理员\', \'code\': 500, \'data\': \'用户名或者密码失败\'}
。。。。。中间省略。。。。
successful
[2021-04-24 22:24:00,454] liwen.local/INFO/locust.main: Time limit reached. Stopping Locust.
[2021-04-24 22:24:00,454] liwen.local/INFO/locust.runners: Stopping 1 users
[2021-04-24 22:24:00,455] liwen.local/INFO/locust.runners: 1 Users have been stopped, 0 still running
[2021-04-24 22:24:00,455] liwen.local/INFO/locust.main: Running teardowns...
[2021-04-24 22:24:00,455] liwen.local/INFO/locust.main: Shutting down (exit code 0), bye.
[2021-04-24 22:24:00,455] liwen.local/INFO/locust.main: Cleaning up runner...

Name # reqs # fails | Avg Min Max Median | req/s failures/s

GET / 166 0(0.00%) | 1 1 5 2 | 216.65 0.00
GET /7d/ 89 0(0.00%) | 1 1 12 1 | 116.16 0.00
POST /login 98 0(0.00%) | 1 1 2 1 | 127.90 0.00

POST /login/json 87 0(0.00%) | 1 1 2 2 | 113.55 0.00

Aggregated 440 0(0.00%) | 1 1 12 2 | 574.26 0.00

Response time percentiles (approximated)

Type Name 50% 66% 75% 80% 90% 95% 98% 99% 99.9% 99.99% 100% # reqs

GET / 2 2 2 2 2 3 3 5 6 6 6 166
GET /7d/ 1 1 1 1 2 2 2 12 12 12 12 89
POST /login 1 1 1 1 2 2 2 2 2 2 2 98

POST /login/json 2 2 2 2 2 2 2 3 3 3 3 87

None Aggregated 2 2 2 2 2 2 3 3 12 12 12 440

Process finished with exit code 0

总结：
locust 官方文档还是比较详细，只要慢慢看就能掌握locust工具怎么操作，但是在老师性能工程中，工具只要能发压就行。