public static Settings loadMavenSettings()
    throws SettingsBuildingException {
  // http://stackoverflow.com/questions/27818659/loading-mavens-settings-xml-for-jcabi-aether-to-use
  SettingsBuildingRequest settingsBuildingRequest =
      new DefaultSettingsBuildingRequest();
  settingsBuildingRequest.setSystemProperties(System.getProperties());
  settingsBuildingRequest.setUserSettingsFile(new File(settingsXml));
  settingsBuildingRequest.setGlobalSettingsFile(DEFAULT_GLOBAL_SETTINGS_FILE);

  SettingsBuildingResult settingsBuildingResult;
  DefaultSettingsBuilderFactory mvnSettingBuilderFactory =
      new DefaultSettingsBuilderFactory();
  DefaultSettingsBuilder settingsBuilder =
      mvnSettingBuilderFactory.newInstance();
  settingsBuildingResult = settingsBuilder.build(settingsBuildingRequest);

  Settings effectiveSettings = settingsBuildingResult.getEffectiveSettings();
  return effectiveSettings;
}
 

private Settings loadDefaultUserSettings() {
	String userHome = System.getProperty("user.home");
    File userMavenConfigurationHome = new File(userHome, ".m2");
    String envM2Home = System.getenv("M2_HOME");
    File DEFAULT_USER_SETTINGS_FILE = new File(userMavenConfigurationHome, "settings.xml");
    File DEFAULT_GLOBAL_SETTINGS_FILE = new File(System.getProperty("maven.home", envM2Home != null ? envM2Home : ""), "conf/settings.xml");
    SettingsBuildingRequest settingsBuildingRequest = new DefaultSettingsBuildingRequest();
    settingsBuildingRequest.setSystemProperties(System.getProperties());
    settingsBuildingRequest.setUserSettingsFile(DEFAULT_USER_SETTINGS_FILE);
    settingsBuildingRequest.setGlobalSettingsFile(DEFAULT_GLOBAL_SETTINGS_FILE);

    DefaultSettingsBuilderFactory mvnSettingBuilderFactory = new DefaultSettingsBuilderFactory();
    DefaultSettingsBuilder settingsBuilder = mvnSettingBuilderFactory.newInstance();
    try {
		SettingsBuildingResult settingsBuildingResult = settingsBuilder.build(settingsBuildingRequest);
		Settings settings = settingsBuildingResult.getEffectiveSettings();
		return settings;
	} catch (SettingsBuildingException e) {
		e.printStackTrace();
	}
    return null;
}
 

private static Settings buildMavenSettings(Path settingsPath) throws ArtifactException {
    SettingsBuildingRequest settingsBuildingRequest = new DefaultSettingsBuildingRequest();
    settingsBuildingRequest.setSystemProperties(System.getProperties());
    settingsBuildingRequest.setUserSettingsFile(settingsPath.toFile());
    SettingsBuildingResult settingsBuildingResult;
    DefaultSettingsBuilderFactory mvnSettingBuilderFactory = new DefaultSettingsBuilderFactory();
    DefaultSettingsBuilder settingsBuilder = mvnSettingBuilderFactory.newInstance();
    try {
        settingsBuildingResult = settingsBuilder.build(settingsBuildingRequest);
    } catch (SettingsBuildingException ex) {
        throw new ArtifactException(ex.getLocalizedMessage());
    }

    return settingsBuildingResult.getEffectiveSettings();
}
 

/**
 * maven仓库处理
 *
 * @return
 * @throws Exception
 */
private static ArtifactRepository localRepository() throws Exception {
    if (mavenHome == null) {
        getMavenHome();
    }
    SettingsBuildingRequest request = new DefaultSettingsBuildingRequest();
    request.setGlobalSettingsFile(new File(mavenHome, "/conf/settings.xml"));

    DefaultSettingsBuilder builder = new DefaultSettingsBuilderFactory().newInstance();
    SettingsBuildingResult ret = builder.build(request);

    String path = ret.getEffectiveSettings().getLocalRepository();
    path = path == null ? String.format("%s%s", System.getProperty("user.home"), "\\.m2\\repository") : path;
    return FACTORY.createArtifactRepository("local", "file://" + path, (ArtifactRepositoryLayout) new DefaultRepositoryLayout(), null, null);
}