从自定义maven插件中读取应用程序的yaml属性,可以通过以下步骤实现:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<id>copy-yaml-properties</id>
<phase>process-resources</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>application.yaml</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
上述配置将会在maven的process-resources
阶段执行,将src/main/resources
目录下的application.yaml
文件复制到${project.build.directory}
目录中。
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
public class CustomMavenPlugin {
public void readYamlProperties() {
try {
ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
File yamlFile = new File("target/application.yaml"); // 读取复制后的yaml文件
Map<String, Object> properties = mapper.readValue(yamlFile, Map.class);
// 处理读取到的属性
// ...
} catch (IOException e) {
// 处理异常
// ...
}
}
}
上述代码使用Jackson YAML库的ObjectMapper类来读取yaml文件,并将其解析为Map对象。可以根据需要进一步处理读取到的属性。
<build>
<plugins>
<plugin>
<groupId>com.example</groupId>
<artifactId>custom-maven-plugin</artifactId>
<version>1.0.0</version>
<dependencies>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.2.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
上述配置将会将maven-resources-plugin作为自定义maven插件的依赖,确保在执行自定义插件时能够正确复制yaml属性文件。
以上是从自定义maven插件中读取应用程序的yaml属性的步骤。在实际应用中,可以根据具体需求进行适当的调整和扩展。
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