java实现文件读取

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;

public class FileReadExample {
public static void main(String[] args) {
try {
// 读取文件
File file = new File("file.txt");
FileInputStream fis = new FileInputStream(file);
InputStreamReader isr = new InputStreamReader(fis, "UTF-8");
BufferedReader br = new BufferedReader(isr);

        // 输出文件内容
        String line;
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }

        // 关闭流
        br.close();
        isr.close();
        fis.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}