Question

怎么用java使用BufferedInputStream读取文本文件

Answer 1

/***
* @author outofmemory.cn*/
public class Main {/**
* 从文件中读取文本*/
public void readFromFile(String filename) {
BufferedInputStream bufferedInput = null;
byte[] buffer = new byte[1024];try {
//创建BufferedInputStream 对象
bufferedInput = new BufferedInputStream(new FileInputStream(filename));
int bytesRead = 0;
//从文件中按字节读取内容，到文件尾部时read方法将返回-1
while ((bytesRead = bufferedInput.read(buffer)) != -1) {
//将读取的字节转为字符串对象
String chunk = new String(buffer, 0, bytesRead);
System.out.print(chunk);}
} catch (FileNotFoundException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
//关闭 BufferedInputStreamtry {
if (bufferedInput != null)
bufferedInput.close();
} catch (IOException ex) {
ex.printStackTrace();}}}/**
* @param args 命令行参数*/