您的位置：首页 > 编程语言 > Java开发

自己写的简易版Java日志类分享

2015-06-16 10:57 846 查看

/**
*
*/
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* @author magic282
*
*/
public class Logger {
private static String logFilePath;
private static boolean isInitialized = false;
private static FileWriter logWriter = null;
private static boolean printLogWhenLog = true;
private static boolean InitLogger() {
String logDirectoryPath = System.getProperty("user.dir")
+ java.io.File.separatorChar + "log";
if (!new File(logDirectoryPath).exists()) {
new File(logDirectoryPath).mkdir();
}
Date logfileDate = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat(
"yyyy-MM-dd-HH-mm-ss");
logFilePath = logDirectoryPath + java.io.File.separatorChar
+ dateFormat.format(logfileDate) + ".log";
try {
logWriter = new FileWriter(logFilePath, true);
isInitialized = true;
} catch (IOException e) {
// TODO Auto-generated catch block
System.err.println("Unable to create log file.");
System.err.println("Initilization fail.");
e.printStackTrace();
return false;
}
return true;
}
public static void Log(String message) {
if (!isInitialized) {
InitLogger();
}
Date logfileDate = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat(
"yyyy-MM-dd-HH-mm-ss");
String callingClassName = new Exception().getStackTrace()[1]
.getClassName();
synchronized (logWriter) {
String log = String.format("[%s] @ [%s]: %s\n", callingClassName,
dateFormat.format(logfileDate), message);
if (printLogWhenLog) {
System.out.printf("[log]:%s", log);
}
try {
logWriter.write(log);
logWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
System.err.println("Write log to file %s error.");
e.printStackTrace();
}
}
}
public static void Log(Exception exception) {
if (!isInitialized) {
InitLogger();
}
Date logfileDate = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat(
"yyyy-MM-dd-HH-mm-ss");
String callingClassName = new Exception().getStackTrace()[1]
.getClassName();
synchronized (logWriter) {
String log = String.format("[%s] @ [%s]: %s\n", callingClassName,
dateFormat.format(logfileDate), exception.toString());
if (printLogWhenLog) {
System.out.printf("[log]:%s", log);
}
try {
logWriter.write(log);
logWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
System.err.println("Write log to file %s error.");
e.printStackTrace();
}
}
}
}

您可能感兴趣的文章:

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签： Java 日志类

相关文章推荐

新的分享

章节导航