[英]maven system variable and operating system dependency
我有文件 pom.xml:
<?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>org.example</groupId>
<artifactId>xxx</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
<dependencies>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-surefire-provider</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.5.2</version>
</dependency>
</dependencies>
<configuration>
<includes>
<include>**/*Test.java</include>
</includes>
<systemPropertyVariables> <application.properties>/application.properties</application.properties>
<web.a>${settings.localRepository}</web.a>
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
</project>
我使用两个操作系统和不同的 IDEA:首先:
Ubuntu 18.04
openjdk version "1.8.0_232"
OpenJDK Runtime Environment (build 1.8.0_232-8u232-b09-0ubuntu1~18.04.1-b09)
OpenJDK 64-Bit Server VM (build 25.232-b09, mixed mode)
javac 1.8.0_232
IntellijIDEA community edition 2019.3.3
第二个实例:
VirtualBox Windows 7
java version "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)
javac 1.8.0_231
Eclipse IDEA for Enterprise Java Developers 2019-09 R (4.13.0)
文件 pom.xml 有系统属性变量:
<web.a>${settings.localRepository}</web.a>
我在项目中使用代码:
@Test
public void properties()
{
Properties props = System.getProperties();
for(Map.Entry prop :props.entrySet())
{
System.out.println(prop.getKey()+" "+prop.getValue());
}
}
当我在第一个实例中部署和运行构建时,变量被加载到 jvm 中,但在第二个实例的同一个构建中不会发生加载。
谁能告诉:是什么原因?
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