Gatling如何启用runMultipleSimulations运行多个仿真脚本

问题场景 #

项目拆分了30个独立的Gatling仿真脚本（Simulation1.scala、Simulation2.scala…），未合并为单文件，执行mvn gatling:test命令时抛出错误：

[ERROR] More than 1 simulation to run, need to specify one, or enable runMultipleSimulations

原有pom.xml配置如下：

<?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.group</groupId>
  <artifactId>gtg</artifactId>
  <version>1.0-SNAPSHOT</version>

  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <encoding>UTF-8</encoding>

    <gatling.version>3.6.1</gatling.version>
    <gatling-maven-plugin.version>3.1.2</gatling-maven-plugin.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>1.2.7</version>
    </dependency>
    <dependency>
      <groupId>io.gatling.highcharts</groupId>
      <artifactId>gatling-charts-highcharts</artifactId>
      <version>${gatling.version}</version>
    </dependency>
    <dependency>
      <groupId>io.gatling</groupId>
      <artifactId>gatling-app</artifactId>
      <version>${gatling.version}</version>
    </dependency>
    <dependency>
      <groupId>io.gatling</groupId>
      <artifactId>gatling-recorder</artifactId>
      <version>${gatling.version}</version>
    </dependency>
  </dependencies>

  <build>
    <testSourceDirectory>src/test/scala</testSourceDirectory>
    <plugins>
      <plugin>
        <groupId>io.gatling</groupId>
        <artifactId>gatling-maven-plugin</artifactId>
        <version>${gatling-maven-plugin.version}</version>
      </plugin>
    </plugins>
  </build>
</project>

配置步骤 #

直接修改pom.xml中gatling-maven-plugin的配置块，添加<runMultipleSimulations>true</runMultipleSimulations>参数即可开启多仿真批量执行能力，修改后的插件配置段：

<plugin>
  <groupId>io.gatling</groupId>
  <artifactId>gatling-maven-plugin</artifactId>
  <version>${gatling-maven-plugin.version}</version>
  <configuration>
    <runMultipleSimulations>true</runMultipleSimulations>
  </configuration>
</plugin>

可选说明 #

• 配置完成后重新执行mvn gatling:test，插件会自动按顺序执行项目下所有识别到的仿真脚本
• 如果不需要运行全部仿真脚本，可以通过simulations参数指定要执行的类清单，配置示例：

<configuration>
  <runMultipleSimulations>true</runMultipleSimulations>
  <simulations>
    <simulation>对应包名.Simulation1</simulation>
    <simulation>对应包名.Simulation2</simulation>
  </simulations>
</configuration>

• 当前使用的Gatling 3.6.1、gatling-maven-plugin 3.1.2版本原生支持该配置，无需额外升级依赖。

内容的提问来源于stack exchange，提问作者Hosten