XLog(web项目专用)

た入场券 2023-10-04 08:59 11阅读 0赞

package utils;
    
    import java.io.BufferedWriter;
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.OutputStreamWriter;
    import java.io.PrintWriter;
    import java.io.StringWriter;
    import java.net.UnknownHostException;
    
    public class XLog {
    
        /**
         * log输出到本地文件开关
         */
        private static boolean offset = false;
        private static String logPath = getHomeDirectory();
    
        public static void showLogArgs(String... args) {
            System.out.println(new Throwable().getStackTrace()[1]);
            for (int i = 0; i < args.length; i++) {
                System.out.println("参数 " + i + " = [" + args[i] + "]");
            }
        }
    
        public static void getChild(String... args) {
            System.out.println(new Throwable().getStackTrace()[2]);
            for (int i = 0; i < args.length; i++) {
                System.out.println("参数 " + i + " = [" + args[i] + "]");
            }
        }
    
        public static void getGrandson(String... args) {
            System.out.println(new Throwable().getStackTrace()[1]);
            System.out.println(new Throwable().getStackTrace()[2]);
            System.out.println(new Throwable().getStackTrace()[3]);
            System.out.println(new Throwable().getStackTrace()[4]);
            System.out.println(new Throwable().getStackTrace()[5]);
            System.out.println(new Throwable().getStackTrace()[6]);
            System.out.println(new Throwable().getStackTrace()[7]);
            System.out.println(new Throwable().getStackTrace()[8]);
            for (int i = 0; i < args.length; i++) {
                System.out.println("参数 " + i + " = [" + args[i] + "]");
            }
        }
    
    
        public static void showExceptionLogInfo(Exception msg) {
            String detilErrMsg = " " + msg + "\n详情:     " + new Throwable().getStackTrace()[1] + "";
            System.out.println("报错信息:" + detilErrMsg);
            file(getStackTraceString(msg) + "\n详细信息:\n" + detilErrMsg, "异常信息.txt");
        }
    
        public static void showLogInfo(String tag, Object msg) {
            String commonMsg = new Throwable().getStackTrace()[1] + "\n详情:   " + tag + ": " + msg;
            System.out.println("调用位置: " + commonMsg);
            file(msg.toString(), "普通信息.txt");
        }
    
        public static void showLogInfo(String msg) {
            String commonMsg = new Throwable().getStackTrace()[1] + "\n详情: " + msg + "";
            System.out.println("调用位置: " + commonMsg);
            file(msg, "普通信息.txt");
        }
    
    //    /**
    //     * 纯写文件
    //     */
    //    public static void file(String msg) {
    //        try {
    //            writeToFile(msg, getHomeDirectory() + "日志信息.log");
    //        } catch (IOException e) {
    //            e.printStackTrace();
    //        }
    //    }
    
        /**
         * @param msg 日志信息
         * @param logFileName 日志文件名称
         * @throws IOException IOException
         */
        private static void file(String msg, String logFileName) {
            if (!offset) {
                return;
            }
            if (logPath == null) {
                logPath = getHomeDirectory();
            }
            try {
                File file = new File(logPath + logFileName);
                if (!file.exists()) {
                    file.createNewFile();
                }
                BufferedWriter writer = new BufferedWriter(
                    new OutputStreamWriter(new FileOutputStream(file, true)));
                writer.write(msg + "\n");
                writer.flush();
                writer.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    
        public static String getStackTraceString(Throwable tr) {
            if (tr == null) {
                return "";
            }
            // This is to reduce the amount of log spew that apps do in the non-error
            // condition of the network being unavailable.
            Throwable t = tr;
            while (t != null) {
                if (t instanceof UnknownHostException) {
                    return "";
                }
                t = t.getCause();
            }
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw, false);
            tr.printStackTrace(pw);
            pw.flush();
            return sw.toString();
        }
    
        /**
         * @return windows桌面路径
         */
        private static String getHomeDirectory() {
            javax.swing.filechooser.FileSystemView fsv = javax.swing.filechooser.FileSystemView
                .getFileSystemView();
    //        System.out.println("桌面路径：" + fsv.getHomeDirectory());
    //        System.out.println("默认路径：" + fsv.getDefaultDirectory());
    //        System.getProperties().list(System.out);
            return fsv.getHomeDirectory().getPath() + File.separator;
        }
    
        public static void main(String[] args) {
            file("测试信息", "测试.log");
        }
    }