JAVA项目文件路径工具类

public class ProjectPathUtils {
	
	public static final String CONFIG_FOLDER = "config";

	
	public static String getRunTimePath(){
        return System.getProperty("user.dir");
	}
	
	
	public static String getClassesPath(){
		URL path = Thread.currentThread().getContextClassLoader().getResource("");//.getPath();  
		return path.getPath();
	}
	
	
	public static String getConfigPath(boolean isJarRun){
		if(isJarRun){
			return ProjectPathUtils.getRunTimePath() + File.separator + CONFIG_FOLDER;
		}
		return ProjectPathUtils.getClassesPath() + File.separator + CONFIG_FOLDER;
	}
	
	
	public static String getPath(String fileName) {

		String filePath = System.getProperty("user.dir") + File.separator + fileName;
		if (new File(filePath).exists()) {
			return filePath;
		}

		URL url = ProjectPathUtils.class.getClassLoader().getResource(fileName);
		if (url != null && new File(url.getPath()).exists()) {
			String urlPath = url.getPath();
			return urlPath;
		}

		return null;
	}
	
	
	public static String getPath(String fileName, String encoding) {

		String filePath = System.getProperty("user.dir") + File.separator + fileName;
		if (new File(filePath).exists()) {
			return filePath;
		}

		URL url = ProjectPathUtils.class.getClassLoader().getResource(fileName);
		if (url == null) {
			return null;
		}
		
		try {
			filePath = URLDecoder.decode(url.getPath(), encoding) ;
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		if (new File(filePath).exists()) {
			return filePath;
		}

		return null;
	}
	
}