java获取文件路径的问题

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System.out.println("1:" + Thread.currentThread().getContextClassLoader().getResource(""));  System.out.println("2:" + TestController.class.getClassLoader().getResource(""));  System.out.println("3:" + ClassLoader.getSystemResource(""));  System.out.println("4:" + TestController.class.getResource(""));//IdcardClient.class文件所在路径  System.out.println("5:" + TestController.class.getResource("/")); // Class包所在路径，得到的是URL对象，用url.getPath()获取绝对路径String  System.out.println("6:" + new File("/").getAbsolutePath());  System.out.println("7:" + System.getProperty("user.dir"));  System.out.println("8:" + System.getProperty("file.encoding"));//获取文件编码  //1:file:/D:/apache-tomcat-6.0.26/webapps/qledu/WEB-INF/classes///2:file:/D:/apache-tomcat-6.0.26/webapps/qledu/WEB-INF/classes///3:null//4:file:/D:/apache-tomcat-6.0.26/webapps/qledu/WEB-INF/classes/com/ql/controller///5:file:/D:/apache-tomcat-6.0.26/webapps/qledu/WEB-INF/classes///6:D:\//7:D:\apache-tomcat-6.0.26\bin//8:GBK

String jarFilePath = clazz.class.getProtectionDomain().getCodeSource().getLocation().getFile();
// URL Decoding
jarFilePath = java.net.URLDecoder.decode(jarFilePath, "UTF-8"); // /D:/apache-tomcat-6.0.26/webapps/qledu/WEB-INF/classes/com/ql/util/PropertiesUtil.class

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