Java读取txt文件中的数据赋给String变量方法

public class MainActivity {		private static final String fileName = "D:/Tao/MyEclipseWorkspace/resources/weather.txt";		public static void main(String[] args) {				//读取文件		BufferedReader br = null;		StringBuffer sb = null;		try {			br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName),"GBK")); //这里可以控制编码			sb = new StringBuffer();			String line = null;			while((line = br.readLine()) != null) {				sb.append(line);			}		} catch (Exception e) {			e.printStackTrace();		} finally {			try {				br.close();			} catch (Exception e) {				e.printStackTrace();			}			}				String data = new String(sb); //StringBuffer ==> String		System.out.println("数据为==> " + data);				}	}