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src/main/java/osc/git/eh3/utils/MyUrlDemo.java
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56
src/main/java/osc/git/eh3/utils/MyUrlDemo.java
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package osc.git.eh3.utils;
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/**
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* Created by lixiangrong on 2017/3/15.
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*/
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import java.io.File;
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import java.io.IOException;
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import java.net.URL;
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public class MyUrlDemo {
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public static void main(String[] args) {
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MyUrlDemo muDemo = new MyUrlDemo();
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try {
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muDemo.showURL();
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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public void showURL() throws IOException {
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// 第一种:获取类加载的根路径 D:\git\daotie\daotie\target\classes
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File f = new File(this.getClass().getResource("/").getPath());
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System.out.println(f);
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// 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
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File f2 = new File(this.getClass().getResource("").getPath());
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System.out.println(f2);
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// 第二种:获取项目路径 D:\git\daotie\daotie
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File directory = new File("");// 参数为空
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String courseFile = directory.getCanonicalPath();
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System.out.println(courseFile);
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// 第三种: file:/D:/git/daotie/daotie/target/classes/
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URL xmlpath = this.getClass().getClassLoader().getResource("");
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System.out.println(xmlpath);
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// 第四种: D:\git\daotie\daotie
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System.out.println(System.getProperty("user.dir"));
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/*
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* 结果: C:\Documents and Settings\Administrator\workspace\projectName
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* 获取当前工程路径
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*/
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// 第五种: 获取所有的类路径 包括jar包的路径
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System.out.println(System.getProperty("java.class.path"));
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}
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}
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