JSP教程之java读取文本文件内容并获取文件大小

2024-09-05 00:17:15

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import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
public class FileContent {
    private String path = "F://下载说明.txt";
    public FileContent() throws IOException
    {
        File f = new File(path);
        FileReader fileReader = new FileReader(f);
        BufferedReader br = new BufferedReader(fileReader);
        String str;
        while((str = br.readLine() ) != null)
        {
            System.out.println(str);
        }
        System.out.println(new FileInputStream(new File(path)).available() / 1024 / 1024 +"M");
    }

    public static void main(String[] args) {
        try {
            new FileContent();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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