{

File file1 = new File("/Users/tao/Downloads/酒店id.txt"); // 创建File类对象

FileInputStream fis = null; // 创建FileInputStream类对象读取File

InputStreamReader isr = null; // 创建InputStreamReader对象接收文件流

BufferedReader br = null; // 创建reader缓冲区将文件流装进去

try {

// fis = new FileInputStream(file1);

// isr = new InputStreamReader(fis);

// br = new BufferedReader(isr);

br = new BufferedReader(new FileReader(file1));

//前三行和这一行等同，FileReader()继承自InputStreamReader

String lineTxt = null;

// 从缓冲区中逐行读取代码，调用readLine()方法

while ((lineTxt = br.readLine()) != null) {

System.out.println(lineTxt); // 逐行输出文件内容

}

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} finally {

// 关闭数据流

if (br != null) {

try {

br.close();

} catch (IOException e) {

e.printStackTrace();

}

}

if (isr != null) {

try {

isr.close();

} catch (IOException e) {

e.printStackTrace();

}

}

if (fis != null) {

try {

fis.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

标签：fis,JAVA,读取,几种,printStackTrace,br,catch,new,null

来源： https://blog.csdn.net/qq_38484961/article/details/101198514