java 的Class中获得相对路径，绝对路径的方法

[url]http://jerryqiu.iteye.com/blog/588979[/url]

import java.io.File;

public class FileTest {

  public static void main(String[] args) throws Exception {

    System.out.println(Thread.currentThread().getContextClassLoader().getResource(""));

    System.out.println(FileTest.class.getClassLoader().getResource(""));

    System.out.println(ClassLoader.getSystemResource(""));

    System.out.println(FileTest.class.getResource(""));

    System.out.println(FileTest.class.getResource("/"));

    // Class文件所在路径

    System.out.println(new File("/").getAbsolutePath());

    System.out.println(System.getProperty("user.dir"));

    System.out.println(System.getProperty("file.encoding"));


  }

}