java异常信息日志输出

public static String getTrace(Throwable t) { 
StringWriter stringWriter= new StringWriter(); 
PrintWriter writer= new PrintWriter(stringWriter); 
t.printStackTrace(writer); 
StringBuffer buffer= stringWriter.getBuffer(); 
return buffer.toString(); 
} 

try(){ 
}catch(IoException e) 
e.printStackTrace(); 
logger.error(getTrace(e)); //将异常输出到文件 
} 

java异常信息日志输出

原文：http://blog.csdn.net/wm5920/article/details/45363207