JAVA读写文件

1.  读文件

BufferedReader reader = null;

   
    try {

reader = new BufferedReader(new InputStreamReader(new FileInputStream("D:/123.txt"), "UTF-8"));
String line = null;
while((line = reader.readLine()) != null) {
System.out.println(line);
}


} catch (Exception e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (IOException e) {
e.printStackTrace();
}

}

2. 写文件

BufferedWriter writer = null;

String content = "aaaaaa";
try
{
writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file, true), "UTF-8"));
writer.write(content);
writer.flush();
} finally
{
writer.close();
}

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