Maven 配置文件 - 如何获取分配给.properties 文件中的属性的值并将它们分配给我的 class 中的变量？

Question

really need some help here because I cannot seem to figure this out.

I have followed Maven Profiles – Example 2 in the following guide https://mkyong.com/maven/maven-profiles-example/

Here is my pom.xml file:

 <?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> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <.-- necessary for intellij to function --> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <groupId>groupId</groupId> <artifactId>testAPI.automation.java</artifactId> <profiles> <profile> <id>test</id> <activation> <activeByDefault>true</activeByDefault> </activation> <properties> <env>test</env> </properties> </profile> <profile> <id>integration</id> <properties> <env>integration</env> </properties> </profile> </profiles> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <dependency> <groupId>io.rest-assured</groupId> <artifactId>rest-assured</artifactId> <version>4.1.2</version> </dependency> <dependency> <groupId>io.rest-assured</groupId> <artifactId>json-path</artifactId> <version>4.1.2</version> </dependency> <dependency> <groupId>io.rest-assured</groupId> <artifactId>json-schema-validator</artifactId> <version>4.1.2</version> </dependency> <dependency> <groupId>org.exparity</groupId> <artifactId>hamcrest-date</artifactId> <version>2.0.7</version> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>2.8.5</version> </dependency> </dependencies> <build> <.-- Loading all ${} --> <filters> <filter>src/main/resources/env/config.${env}.properties</filter> </filters> <.-- Map ${} into resources --> <resources> <resource> <directory>src/main/resources</directory> <filtering>true</filtering> <includes> <include>*.properties</include> </includes> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.1</version> <configuration> <source>8</source> <target>8</target> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>3.0.0-M3</version> <configuration> <parallel>methods</parallel> <threadCount>10</threadCount> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.1.2</version> <executions> <execution> <goals> <goal>test-jar</goal> </goals> </execution> </executions> </plugin> <.-- display active profile in compile phase --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-help-plugin</artifactId> <version>3.1.0</version> <executions> <execution> <id>show-profiles</id> <phase>compile</phase> <goals> <goal>active-profiles</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>

Here are my properties files. I am only using two env configs at the moment 'test' and 'integration'

Here is my BaseTest class. Previously I was getting the URL values directly from the pom.xml file and assigning them to variables for use in my tests. How do I now access the values stored in the config files so I can assign them to variables for use in my tests?

When I debug, all I get are nulls. Running 'mvn package -P integration' in the terminal does not work either

However, it does say that the profile I specified is active when I execute 'mvn package -P integration'

In summary, what I am trying to achieve is to access the values stored in the config files so I can assign them to variables for use in my tests. Maybe I have misunderstood it. I am pretty new to Maven and Java and any help would be greatly appreciated

Thanks

Answer 1

System.getProperty is not used to retrieve values from the user-defined file. You need to load properties manually, something like the following:

public class BaseTest {

    String BaseUrl;

    public BaseTest() {
        Properties prop = new Properties();
        try (InputStream resourceAsStream = getClass().getClassLoader().getResourceAsStream("config.properties")) {
            prop.load(resourceAsStream);
            BaseUrl = (String) prop.get("url.baseUrl");
            
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

Answer 2

Please refer How to read data from java properties file using Spring Boot

The code you have written will only read values from environment variables.