JAVA自定义日志

class log {    public static void info(Object obj) {       try {           //FileWriter(文件路径，是否可以追加内容)           FileWriter fw = new FileWriter("c:/wlllog.log", true);           fw.write(obj.toString() + "\r\n");           fw.flush();           fw.close();       } catch (IOException e) {           e.printStackTrace();       }    }}