debug、info、warn、error
时间: 2023-04-16 22:00:54 浏览: 70
debug:调试信息,通常用于开发阶段,用于输出程序的运行状态、变量值等信息,帮助开发者定位问题。
info:信息提示,通常用于输出程序的正常运行状态,比如程序启动、请求处理完成等。
warn:警告信息,通常用于输出程序的潜在问题,比如接口返回异常、参数不合法等。
error:错误信息,通常用于输出程序的严重问题,比如程序崩溃、数据库连接失败等。
相关问题
debug info warn error fatal
These are different levels of severity for log messages in a software application:
1. Debug: These messages are used for debugging or troubleshooting purposes. They are usually used during development and are not shown in production environments.
2. Info: These messages provide information about what is happening in the application. They are usually used to track application events and are considered useful for developers.
3. Warn: These messages indicate potential issues that may cause errors in the application. They are usually used to alert developers about issues that need attention.
4. Error: These messages indicate errors that have occurred in the application. They are usually used to alert developers about issues that need to be fixed.
5. Fatal: These messages indicate critical errors that have caused the application to stop functioning. They are usually used to alert developers about issues that need immediate attention.
debug,info,warn,error
这四个词都是日志级别(log level),用于指示日志信息的重要程度和严重程度。一般来说,日志级别从低到高分别是 debug,info,warn,error。
1. debug:用于输出程序运行过程中的详细信息,通常只有在调试程序时才需要输出该级别的日志信息。
2. info:用于输出程序正常运行过程中的信息,例如程序启动信息、请求处理信息等。
3. warn:用于输出程序运行过程中的警告信息,例如程序使用了过时的方法、参数等。
4. error:用于输出程序运行过程中的错误信息,例如程序抛出了异常、请求处理失败等。
在实际应用中,可以根据需要设置日志级别,只输出需要的信息,避免日志信息过多影响程序性能。