Some tips for printing logs

1. Use placeholders ﹐ Instead of string splicing

String name=" Xiaohong ";

log.info("hello from {}",name);      // Use placeholders 

log.ingo("hello from"+name);      // Use string concatenation 

 
/*
 More standardized with placeholders , And placeholder performance is better , Reduce the loss of performance 
*/

2. Judge debug Mode on

if(log.isDebugEnabled()){


log.info("hello from {}",name);

}