请尝试下面的代码：这里的想法是使用java“scanner”类。这将逐行读取文件，直到到达文件末尾。

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

public class fileReader {
  public static void main(String[] args) {
    try {
      File oFile = new File("myfile.txt");
      Scanner oScanner= new Scanner(oFile );
      while (oScanner.hasNextLine()) {
        String sLine = oScanner.nextLine(); //Next line will point to the next line on the file
        System.out.println(sLine ); //And any other operations on the line you would like to perform.
      }
      oScanner.close();
    } catch (FileNotFoundException e) {
      System.out.println("Error Occurred");
      e.printStackTrace();
    }
  }
}