如何格式化错误日志中的变量和异常

Question

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

    private static final Logger log = LoggerFactory.getLogger(Twitter.class); 

     } catch (TwitterException e) { 
      // It prints the message as well as the exception 
      // log.error("Unable to show status", e); 

      // I would like to pass a status as well as an exception 
      // Is this an appropriate log statement 
      String status = "failed"; 
      log.error("Unable to show status {}", status, e); 
     } 

上述log.error语句是log.error的变体，上述语句是否正常工作。我也不确定，因为我也通过了“地位”。请澄清

Answer 1

如果不确定，只需使用String#format创建日志消息：

log.error(String.format("Unable to show status %s", status), e);