web项目获取WEB-INF路径下的文件

import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;

/**
 * 普通JAVA获取   WEB项目下的WEB-INF目录
 * @author wang
 *
 */
public class PathUtil {
    public static void main(String[] args) {
        PathUtil pathUtil = new PathUtil();
        System.out.println("path=="+pathUtil.getPath());
    }
    public String getPath(){
        return getWebInfPath();
    }
    private String getWebInfPath(){
        URL url = getClass().getProtectionDomain().getCodeSource().getLocation();
        String path = url.toString();
        int index = path.indexOf("WEB-INF");
        
        if(index == -1){
            index = path.indexOf("classes");
        }
        
        if(index == -1){
            index = path.indexOf("bin");
        }
        
        path = path.substring(0, index);
        
        if(path.startsWith("zip")){//当class文件在war中时，此时返回zip:D:/...这样的路径
            path = path.substring(4);
        }else if(path.startsWith("file")){//当class文件在class文件中时，此时返回file:/D:/...这样的路径
            path = path.substring(6);
        }else if(path.startsWith("jar")){//当class文件在jar文件里面时，此时返回jar:file:/D:/...这样的路径
            path = path.substring(10); 
        }
        try {
            path =  URLDecoder.decode(path, "UTF-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        
        return path;
    }
}