java io 读文件
/**
* 读取文件
* @param fileName 文件名称
*/
private void readFile(String fileName) {
File file = new File(fileName);
try (BufferedReader bufferedReader = new BufferedReader(new FileReader(file));) {
String strLine = null;
while (null != (strLine = bufferedReader.readLine())) {
System.out.println(strLine);
}
} catch (Exception e) {
e.printStackTrace();
}
}