Java获取路径的几种方式

Question

如题所述

Answer 1

获取当前类的绝对路径；第1种：File directory = new File("");//参数为空
String courseFile = directory.getCanonicalPath() ;
System.out.println(courseFile);结果：C:\Documents and Settings\Administrator\workspace\projectName
获取当前类的所在工程路径;第2种：URL xmlpath = this.getClass().getClassLoader().getResource("selected.txt");
System.out.println(xmlpath);结果：file:/C:/Documents%20and%20Settings/Administrator/workspace/projectName/bin/selected.txt
获取当前工程src目录下selected.txt文件的路径第3种：System.out.println(System.getProperty("user.dir"));结果：C:\Documents and Settings\Administrator\workspace\projectName
获取当前工程路径第4种：System.out.println( System.getProperty("java.class.path"));结果：C:\Documents and Settings\Administrator\workspace\projectName\bin获取当前工程路径