package com.jiepu;import java.io.File;import .URISyntaxException;import java.util.Map;import java.util.Properties;//java在gradle工程访问src/test/resources或者src/main/resources目录下的资源配置文件public class TestMain{public static void main(String args[]) throws URISyntaxException {System.out.println(new File(".").getAbsolutePath());Properties properties=new Properties();try {// properties.load(new FileInputStream("config.properties"));System.out.println(TestMain.class.getResource("/config.properties").toExternalForm());System.out.println(Thread.currentThread().getContextClassLoader().getResource("config.properties"));properties.load(TestMain.class.getResource("/config.properties").openStream());} catch (Exception e) {e.printStackTrace();}String version=properties.getProperty("version");System.out.println(version);for(Map.Entry<Object,Object> entry:properties.entrySet()){Object key=entry.getKey();Object value=entry.getValue();System.out.println(key+"="+value);}}}
import java.io.File;import java.io.IOException;import .URL;public class MyUrlDemo {public static void main(String[] args) {MyUrlDemo muDemo = new MyUrlDemo();try {muDemo.showURL();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public void showURL() throws IOException {// 第一种：获取类加载的根路径 D:\git\daotie\daotie\target\classesFile f = new File(this.getClass().getResource("/").getPath());System.out.println(f);// 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\myFile f2 = new File(this.getClass().getResource("").getPath());System.out.println(f2);// 第二种：获取项目路径 D:\git\daotie\daotieFile directory = new File("");// 参数为空String courseFile = directory.getCanonicalPath();System.out.println(courseFile);// 第三种： file:/D:/git/daotie/daotie/target/classes/URL xmlpath = this.getClass().getClassLoader().getResource("");System.out.println(xmlpath);// 第四种： D:\git\daotie\daotieSystem.out.println(System.getProperty("user.dir"));/** 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"));}}
