3种Java从文件路径中获取文件名的方法

时间:2022-07-30 21:12:51
package test;  

import java.io.File;  

public class FileName {  

    /**
* @param args
*/
public static void main(String[] args) {
// 举例:
String fName =" G:\\Java_Source\\navigation_tigra_menu\\demo1\\img\\lev1_arrow.gif "; // 方法一: File tempFile =new File( fName.trim()); String fileName = tempFile.getName(); System.out.println("fileName = " + fileName); // 方法二: String fName = fName.trim(); String fileName = fName.substring(fName.lastIndexOf("/")+1);
//或者
String fileName = fName.substring(fName.lastIndexOf("\\")+1); System.out.println("fileName = " + fileName); // 方法三: String fName = fName.trim(); String temp[] = fName.split("\\\\"); /**split里面必须是正则表达式,"\\"的作用是对字符串转义*/ String fileName = temp[temp.length-1]; System.out.println("fileName = " + fileName); } }