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java日志记录错误的文件_方法_行号_报错信息


1、java日志记录错误的文件、方法、行号、报错信息

 StackTraceElement s= e.getStackTrace()[0];

1.1、记录保存的文件​​s.getFileName()​

1.2、记录保存的方法​​s.getMethodName()​

1.3、记录报错的行号 ​​s.getLineNumber()​

1.4、记录报错的信息(不全面) ​​e.getMessage()​

1.5、互利报错的类名字 ​​e.getClassName()​

1.6、打印详细的堆栈信息 ​​logger.error("错误堆栈", e);​

获取堆栈信息,如果直接打印e,则会将它toString

/**
* 获取堆栈信息
* @param throwable
* @return
*/
public static String getStackTrace(Throwable throwable){
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
try
{
throwable.printStackTrace(pw);
return sw.toString();
} finally
{
pw.close();
}
}

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
* @Desc: 异常打印日志 ,提供给打印非正常异常
* @Author HealerJean
* @Date 2018/8/21 下午6:41.
*/

public static void log(Throwable e,Class c){
Logger logger = LoggerFactory.getLogger(c);
// logger.error("错误堆栈", e);

StackTraceElement s= e.getStackTrace()[0];//数组长度为 1
logger.error("\n\n-----------------"+
"\n报错文件名:"+s.getFileName()+
"\n报错的类:"+s.getClassName()+
"\n报错方法::"+s.getMethodName()+
"\n报错的行:"+ s.getLineNumber()+
"\n报错的message:"+ e.getMessage()+
"\n错误堆栈:\n"+getStackTrace(e)+
"\n------------------\n\n");
}

1.2、使用


public static void main(String[] args) {

try {
int i =1/0 ;
}catch (Exception e){
log(e,ExceptionLogUtils.class );
}


}


11:40:53.732 [main] ERROR com.duodian.youhui.admin.utils.ExceptionLogUtils -

-----------------
报错文件名:ExceptionLogUtils.java
报错的类:com.duodian.youhui.admin.utils.ExceptionLogUtils
报错方法::main
报错的行:68
报错的message:/ by zero
错误堆栈:
java.lang.ArithmeticException: / by zero
at com.duodian.youhui.admin.utils.ExceptionLogUtils.main(ExceptionLogUtils.java:68)

------------------

2、打印变量日志

log.info("cacheMsg RECUR_FIGHT A:  roomId = {}, userId = {}, toUid = {}", room.getRoomId(), ctx.getUserId(), toUid);

3、info打印更多的信息

3.1、打印方法

public static void logInfo(String msg,Class c){
Logger logger = LoggerFactory.getLogger(c);
String location="";
StackTraceElement[] stacks = Thread.currentThread().getStackTrace();
System.out.println(stacks.length); //长度为3
for(StackTraceElement stackTraceElement:stacks){
logger.info("\n\n**************"+
"\n打印文件名:"+stackTraceElement.getFileName() +
"\n打印类名:"+ stackTraceElement.getClassName() +
"\n方法名:" + stackTraceElement.getMethodName() +
"\n行号:" + stackTraceElement.getLineNumber() +
"\n打印内容:"+msg+
"\n**************\n\n");
System.out.println(location);

}

}

3.2、测试

1、是当前线程,2、当前打印所在方法,3、是调用该方法的类,那么我们需要的就是第三个

public static void main(String[] args) {
logInfo("HealerJean",ExceptionLogUtils.class);
}


3
11:44:47.685 [main] INFO com.duodian.youhui.admin.utils.ExceptionLogUtils -

**************
打印文件名:Thread.java
打印类名:java.lang.Thread
方法名:getStackTrace
行号:1559
打印内容:HealerJean
**************



11:44:47.689 [main] INFO com.duodian.youhui.admin.utils.ExceptionLogUtils -

**************
打印文件名:ExceptionLogUtils.java
打印类名:com.duodian.youhui.admin.utils.ExceptionLogUtils
方法名:logInfo
行号:31
打印内容:HealerJean
**************



11:44:47.689 [main] INFO com.duodian.youhui.admin.utils.ExceptionLogUtils -

**************
打印文件名:ExceptionLogUtils.java
打印类名:com.duodian.youhui.admin.utils.ExceptionLogUtils
方法名:main
行号:49
打印内容:HealerJean
**************

1和3总结

package com.duodian.youhui.admin.utils;

import lombok.extern.slf4j.Slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.PrintWriter;
import java.io.StringWriter;

/**
* @Desc: 异常打印日志 ,提供给打印非正常异常
* @Author HealerJean
* @Date 2018/8/21 下午6:41.
*/
@Slf4j
public class ExceptionLogUtils {



public static void log(Throwable e,Class c){
Logger logger = LoggerFactory.getLogger(c);
// logger.error("错误堆栈", e);

StackTraceElement s= e.getStackTrace()[0];//数组长度为 1
logger.error("\n\n-----------------"+
"\n报错文件名:"+s.getFileName()+
"\n报错的类:"+s.getClassName()+
"\n报错方法::"+s.getMethodName()+
"\n报错的行:"+ s.getLineNumber()+
"\n报错的message:"+ e.getMessage()+
"\n错误堆栈:\n"+getStackTrace(e)+
"\n------------------\n\n");
}

/**
* 获取堆栈信息
* @param throwable
* @return
*/
public static String getStackTrace(Throwable throwable){
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
try
{
throwable.printStackTrace(pw);
return sw.toString();
} finally
{
pw.close();
}
}


public static void logInfo(String msg,Class c){
Logger logger = LoggerFactory.getLogger(c);
StackTraceElement[] stacks = Thread.currentThread().getStackTrace();//数组长度为 3
logger.info("\n\n**************"+
"\n打印文件名:"+stacks[2].getFileName() +
"\n打印类名:"+ stacks[2].getClassName() +
"\n方法名:" + stacks[2].getMethodName() +
"\n行号:" + stacks[2].getLineNumber() +
"\n打印内容:"+msg+
"\n**************\n\n");
}

}

4、打印变量

.info("admin[{}],[{}],[{}];请求地址:[{}];访问ip:[{}]", CasConfig.RemoteUserUtil.getRemoteUserId(),CasConfig.RemoteUserUtil.getRemoteUserAccount(),CasConfig.RemoteUserUtil.getRemoteUserName(),request.getRequestURL(), IpUtil.getIp());

java日志记录错误的文件_方法_行号_报错信息_Log


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