Java中从maven拉取所需jar包及其依赖

背景

最近基于alibaba的jarslink框架开发了算法服务平台。各个算法模块以jar包的形式推送到maven仓库中，java代码需要根据配置信息，从中央仓库拉取各个jar包及其依赖，本文记录下对应的代码实现

maven 依赖

  org.kie.soup
  kie-soup-maven-integration
  7.21.0.Final
 

Java Demo

@Component
public class ModelMavenLoader{
  static{
    System.setProperty(MavenSettings.CUSTOM_SETTINGS_PROPERTY,ModelMavenLoader.class.getClassLoader().getResource("settings.xml").getPath());
  }
    
	public ModelMavenLoadResult loadWithDependency(DeployedModel deployedModel) throws Exception{
	    //下载依赖jar包
	    ArtifactResolver artifactResolver = new ArtifactResolver();
	    Artifact artifact = artifactResolver.resolveArtifact(deployedModel.toAFReleaseId());
	
	    List dependecies = artifactResolver.getArtifactDependecies(deployedModel.toArtifactName());
	
	    File artifactJar = artifact.getFile();
	
	    List dependencyFiles = new LinkedList<>();
	    for (DependencyDescriptor depend : dependecies) {
	        if (!DependencyFilter.COMPILE_FILTER.accept(depend.getReleaseId(), depend.getScope())) {
	            continue;
	        }
	        Artifact a = artifactResolver.resolveArtifact(depend.getReleaseId());
	        dependencyFiles.add(a.getFile());
	    }
	
	    ModelMavenLoadResult result = new ModelMavenLoadResult();
	    result.setArtifactJar(artifactJar);
	    result.setDependencyJars(dependencyFiles);
	
	    return result;
	}
}

Maven settings.xml

 

  /repository/
  
    
      
        
          
            false
          
          central
          libs-release
          http://{ip:port}/artifactory/libs-release
        
        
          
            always
          
          snapshots
          libs-snapshot
          http://{ip:port}/artifactory/libs-snapshot
        
      
      artifactory
    
  
  
    artifactory
  

结语

基于这样一个工具类，开发中可以把插件推送到中央仓库，由代码去主动的拉取插件及jar包，基于jarslink框架，可以实现服务的插件应用。希望大家有所收获