FileNotFound

getResource路径包含‘中文or空格’，读取文件提示找不到
String path_resource = this.getClass().getClassLoader().getResource("").getPath();
输出结果：
		/E:/ideaProjects/esDemo/target/test-classes/
		
String path = this.getClass().getResource("/demo-files/智能研发办公部张波-201903话费发票.pdf").getFile();
输出结果：
		/E:/ideaProjects/esDemo/target/test-classes/demo-files/%e6%99%ba%e8%83%bd%e7%a0%94%e5%8f%91%e5%8a%9e%e5%85%ac%e9%83%a8%e5%bc%a0%e6%b3%a2-201903%e8%af%9d%e8%b4%b9%e5%8f%91%e7%a5%a8.pdf
		
读取文件流，提示文件找不到
InputStream in = new FileInputStream(path);
异常：
java.io.FileNotFoundException: E:\ideaProjects\esDemo\target\test-classes\demo-files\%e6%99%ba%e8%83%bd%e7%a0%94%e5%8f%91%e5%8a%9e%e5%85%ac%e9%83%a8%e5%bc%a0%e6%b3%a2-201903%e8%af%9d%e8%b4%b9%e5%8f%91%e7%a5%a8.pdf (系统找不到指定的文件。)

原因：
		获取文件路径时，路径里面的空格会被“%20”代替。若用这个包含“%20”的路径来new一个File或读取file时，会出现找不到路径的错误。
		
解决办法--方式1：
URI uri = new URI(path);//import java.net.URI;  path是含有空格or中文的路径 
FileInputStream in = new FileInputStream(uri.getPath());
解决办法--方式2：
String path = java.net.URLDecoder.decode(path,"utf-8");//path是含有空格or中文的路径
InputStream in = new FileInputStream(path);
解决办法--方式3：
String path_uri = this.getClass().getResource("/demo-files/智能研发办公部张波-201903话费发票.pdf").toURI().getPath();
InputStream in = new FileInputStream(path_uri);

path

//Junit下获取src/test/resource路径
String rootPath=this.getClass().getResource("/a.txt").getFile().toString();
System.out.println(rootPath);

String rootPath1 = this.getClass().getResource("/a.txt").toString();
System.out.println(rootPath1);

String rootPath2 = this.getClass().getResource("/").toString();
System.out.println(rootPath2);

String rootPath3 = this.getClass().getResource("").toString();
System.out.println(rootPath3);

输出结果：
    /E:/ideaProjects/esDemo/target/test-classes/a.txt
    file:/E:/ideaProjects/esDemo/target/test-classes/a.txt
    file:/E:/ideaProjects/esDemo/target/test-classes/
    file:/E:/ideaProjects/esDemo/target/test-classes/com/zbo/