目的
最近在做一些自动化和性能测试平台一些相关的东西,在做性能测试的时候之前大部分都是使用的是Jmeter作为测试引擎来做,但在有时候延迟高的应用中单机做大并发比较难,在此过程中注意到了有gatling这个工具,相关的一些特性和区别啥的就不列出来了,这里只是简单记录下初次使用时的一个示例.
必备条件
以下是我自己的运行环境
- jdk8
- scala sdk
- idea 2021
- maven
准备工作
准备本地的被测接口
- 接口请求为
curl --location --request POST 'http://127.0.0.1/user/listAll' \
--header 'Content-Type: application/json' \
--data-raw '{
"type":0
}'
- 接口返回
{
"code": 200,
"msg": "操作成功",
"data": [
{
"userId": "28f5433fa58f11ebaef90242ac110004",
"account": "nidaye",
"userName": "zx",
"userPassword": "202cb962ac59075b964b07152d234b70",
"type": "1",
"mail": null,
"phone": "13111112222",
"lastLogin": null,
"status": "0",
"authority": "2",
"creator": null,
"createTime": "2021-04-25 06:26:25",
"editor": null,
"updateTime": "2021-04-25 06:26:25",
"deleted": "0",
"properties": null
}
]
}
创建项目
在idea创建默认的mvn空项目
导入所需要依赖
- 参考官网: https://gatling.io/open-source/
- 导入后完整pom.xml示例:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bzlrobot.test</groupId>
<artifactId>gatlingdemo</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>io.gatling.highcharts</groupId>
<artifactId>gatling-charts-highcharts</artifactId>
<version>3.5.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>io.gatling</groupId>
<artifactId>gatling-maven-plugin</artifactId>
<version>3.1.1</version>
</plugin>
</plugins>
</build>
</project>
编写简单的请求示例
package com.bzlrobot.test.tools.gatling
import io.gatling.core.Predef._
import io.gatling.http.Predef._
import scala.concurrent.duration._
/**
* @author: dsg
*
*/
class UserQuerySimulation extends Simulation {
val httpProtocol = http
.baseUrl("http://127.0.0.1")
.acceptHeader("application/json")
val requestBody: String = "{\n \"type\":0\n}"
val scn = scenario("查询所有用户")
.exec(http("开始查询用户")
.post("/user/listAll")
.header("Content-Type", "application/json")
.check(status.is(200)) //断言返回状态码是否为200
.check(jsonPath("$.msg").exists) //断言返回json中存在 msg 属性
.body(StringBody(requestBody)))
.pause(1)
setUp(scn.inject(constantConcurrentUsers(100).during(1.minute))).protocols(httpProtocol)
}
运行测试
复制脚本
将编写好的UserQuerySimulation.scala复制到gatling的安装目录下
D:\APPS\GATLING-CHARTS-HIGHCHARTS-BUNDLE-3.5.1
├─bin
├─conf
├─lib
├─results
│ ├─userquerysimulation-20210515062448313
│ │ ├─js
│ │ └─style
│ ├─userquerysimulation-20210515063130439
│ │ ├─js
│ │ └─style
│ ├─userquerysimulation-20210515063455131
│ │ ├─js
│ │ └─style
│ └─userquerysimulation-20210515070338757
│ ├─js
│ └─style
├─target
│ └─test-classes
│ ├─com
│ │ └─bzlrobot
│ │ └─test
│ │ └─tools
│ │ └─gatling
│ └─computerdatabase
│ └─advanced
└─user-files
├─resources
└─simulations
└─computerdatabase
└─advanced
这里的$gatling_DIR/user-files/simulations/computerdatabase/advanced目录下
开始执行
运行gatling.bat,在接下来的提示中选择我们自己的脚本[0] com.bzlrobot.test.tools.gatling.UserQuerySimulation这里选择0回车就行了,在下一步输入一个描述信息,可以不输直接回车也可以的,不影响,
接下来就是等了,效果如下:
PS D:\apps\gatling-charts-highcharts-bundle-3.5.1\bin> .\gatling.bat
GATLING_HOME is set to "D:\apps\gatling-charts-highcharts-bundle-3.5.1"
JAVA = ""C:\Program Files\Java\jdk1.8.0_281\bin\java.exe""
Choose a simulation number:
[0] com.bzlrobot.test.tools.gatling.UserQuerySimulation
[1] computerdatabase.BasicSimulation
[2] computerdatabase.advanced.AdvancedSimulationStep01
[3] computerdatabase.advanced.AdvancedSimulationStep02
[4] computerdatabase.advanced.AdvancedSimulationStep03
[5] computerdatabase.advanced.AdvancedSimulationStep04
[6] computerdatabase.advanced.AdvancedSimulationStep05
0
Select run description (optional)
test
Simulation com.bzlrobot.test.tools.gatling.UserQuerySimulation started...
================================================================================
2021-05-15 15:03:45 5s elapsed
---- Requests ------------------------------------------------------------------
> Global (OK=400 KO=0 )
> 开始查询用户 (OK=400 KO=0 )
---- 查询所有用户 --------------------------------------------------------------------
active: 100 / done: 300
================================================================================
结果
跑完会有一个概览结果,还有一个详细的html的可视化结果
- 概览结果:
imulation com.bzlrobot.test.tools.gatling.UserQuerySimulation completed in 60 seconds
Parsing log file(s)...
Parsing log file(s) done
Generating reports...
================================================================================
---- Global Information --------------------------------------------------------
> request count 5900 (OK=5900 KO=0 )
> min response time 2 (OK=2 KO=- )
> max response time 1165 (OK=1165 KO=- )
> mean response time 20 (OK=20 KO=- )
> std deviation 92 (OK=92 KO=- )
> response time 50th percentile 6 (OK=6 KO=- )
> response time 75th percentile 10 (OK=10 KO=- )
> response time 95th percentile 26 (OK=26 KO=- )
> response time 99th percentile 565 (OK=565 KO=- )
> mean requests/sec 96.721 (OK=96.721 KO=- )
---- Response Time Distribution ------------------------------------------------
> t < 800 ms 5864 ( 99%)
> 800 ms < t < 1200 ms 36 ( 1%)
> t > 1200 ms 0 ( 0%)
> failed 0 ( 0%)
================================================================================
Reports generated in 0s.
Please open the following file: D:\apps\gatling-charts-highcharts-bundle-3.5.1\results\userquerysimulation-20210515070338757\index.html
- 可根据上面的提示打开html报告:
