package com.jason.test; import java.io.File; import java.io.IOException; import java.net.URL; public class MyUrlDemo { public static void main(String[] args) { MyUrlDemo muDemo = new MyUrlDemo(); try { muDemo.showURL(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void showURL() throws IOException { // 第一种:获取类加载的根路径 D:\git\daotie\daotie\target\classes File f = new File(this.getClass().getResource("/").getPath()); System.out.println(f); //C:\notos\code\sailertest\target\classes // 获取当前类的所在工程路径; 如果不加“/” 获取当前类的加载目录 D:\git\daotie\daotie\target\classes\my File f2 = new File(this.getClass().getResource("").getPath()); System.out.println(f2);//C:\notos\code\sailertest\target\classes\com\jason\test // 第二种:获取项目路径 D:\git\daotie\daotie File directory = new File("");// 参数为空 String courseFile = directory.getCanonicalPath(); System.out.println(courseFile);//C:\notos\code\sailertest // 第三种: file:/D:/git/daotie/daotie/target/classes/ URL xmlpath = this.getClass().getClassLoader().getResource(""); System.out.println(xmlpath);//file:/C:/notos/code/sailertest/target/classes/ // 第四种: D:\git\daotie\daotie System.out.println(System.getProperty("user.dir"));//C:\notos\code\sailertest /* * 结果: C:\Documents and Settings\Administrator\workspace\projectName * 获取当前工程路径 */ // 第五种: 获取所有的类路径 包括jar包的路径 System.out.println(System.getProperty("java.class.path"));//C:\Users\MI\AppData\Local\Temp\classpath.jar;C:\notos\software\idea\idea201703\IntelliJ IDEA 2017.3.5\lib\idea_rt.jar } }
原文地址:https://www.cnblogs.com/jason-dong/p/10177483.html
时间: 2024-10-01 00:34:15