解析TXT文件

public String getText(String filename){
	String return_str = null;
	try {
        BufferedReader read = null;
		try {
			read = new BufferedReader(new FileReader(filename));
			String str = "";
			while ((str=read.readLine())!=null) {
				return_str = return_str + str + "\r\n";
			}
		} catch (FileNotFoundException e) {
			System.out.println("解析txt文件出错！");
			e.printStackTrace();
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
	return return_str;
}