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java 文件路径问题

  1. 问题

windows下路径分割符'',java程序可识别的是''或'/',通过用户输入的路径进行转换,变成程序可识别的,但是转化后的路径程序不识别。

  1. 程序

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.Scanner;

public class test {

public static void main(String[] args) {
    // TODO 自动生成的方法存根
    String path=null;
    System.out.println("请输入文件路径");
    Scanner in=new Scanner(System.in);           //输入文件路径 "C:UserslenovoDesktop新建 Microsoft Excel 工作表.xlsx"
    path=in.nextLine().replaceAll("\\", "/");
    System.out.println(path);                    //得到系统识别的路径 path="C:/Users/lenovo/Desktop/新建 Microsoft Excel 工作表.xlsx"
    //path="C:/Users/lenovo/Desktop/新建 Microsoft Excel 工作表.xlsx";    
    File file=new File(path);                    //此时系统找不到文件,但是 将path="C:/Users/lenovo/Desktop/新建 Microsoft Excel 工作表.xlsx";执行后 程序能找到文件,问题就是 path已经是"C:/Users/lenovo/Desktop/新建 Microsoft Excel 工作表.xlsx",但程序不识别,怎么回事
    try {
        FileReader fileReader=new FileReader(file);
        System.out.println("读入文件");
    } catch (FileNotFoundException e) {
        // TODO 自动生成的 catch 块
        System.out.println("文件未找到");
    }
}

}


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1 Answer

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by (71.8m points)

-。-好像没毛病,你对比下你能成功的path(就是你注释掉的)和输入后转换过的path


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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