获取路径:获取的是项目目录, System.getProperty("user.dir"), file.getCanonicalFile()
获取资源:获取的是resources目录下的资源, class.getResourceAsStream("/xcrj-resources.txt"), class.getClassLoader().getResourceAsStream("xcrj-resources.txt")
package com.xcrj.path; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.nio.charset.Charset; public class PathMain { public static void main(String[] args) throws IOException { // G:micro-servicespringbootbasic System.out.println(System.getProperty("user.dir")); // 设置为当前文件夹 File file = new File(""); // 标准路径,G:micro-servicespringbootbasic System.out.println(file.getCanonicalFile()); // 绝对路径,G:micro-servicespringbootbasic System.out.println(file.getAbsolutePath()); // 类的绝对路径,/G:/micro-service/springbootbasic/target/classes/ System.out.println(PathMain.class.getResource("/").getPath()); // resources/xcrj-resources.txt InputStream is = PathMain.class.getResourceAsStream("/xcrj-resources.txt"); byte[] buf = new byte[is.available()]; is.read(buf); System.out.println(new String(buf, Charset.forName("UTF-8"))); // resources/xcrj-resources.txt InputStream is1 = PathMain.class.getClassLoader().getResourceAsStream("xcrj-resources.txt"); byte[] buf2 = new byte[is1.available()]; is1.read(buf2); System.out.println(new String(buf2, Charset.forName("UTF-8"))); } }