//京鸿通信科技//www.kyohoon.com//java文件一行一行读取_java一行一行写入或读取文件

参考地址：

http://www.cnblogs.com/linjiqin/archive/2011/03/23/1992250.html

java中提供一行一行读取的类是 BufferedReader,其有一个readLine()方法。

java中提供一行一行写入的类是 BufferedWriter,其有一个write方法。 【读取文件】

public void readLineFile(String filename){

try {

FileInputStream in = new FileInputStream(filename);

InputStreamReader inReader = new InputStreamReader(in, "UTF-8");

BufferedReader bufReader = new BufferedReader(inReader);

String line = null;

int i = 1;

while((line = bufReader.readLine()) != null){

System.out.println("第" + i + "行：" + line);

i++;

}

bufReader.close();

inReader.close();

in.close();

} catch (Exception e) {

e.printStackTrace();

System.out.println("读取" + filename + "出错！");

}

}【写入文件】

public void writeLineFile(String filename, String[] content){

try {

FileOutputStream out = new FileOutputStream(filename);

OutputStreamWriter outWriter = new OutputStreamWriter(out, "UTF-8");

BufferedWriter bufWrite = new BufferedWriter(outWriter);

for (int i = 0; i < content.length; i++) {

bufWrite.write(content[i] + "\r\n");

}

bufWrite.close();

outWriter.close();

out.close();

} catch (Exception e) {

e.printStackTrace();

System.out.println("读取" + filename + "出错！");

}

}

 

 

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