Log4j隐式字符串格式 [英] Log4j Implicit String Formatting

问题描述

我正在使用log4j v1.2.14登录项目，也正在使用Java 7

I am using log4j v1.2.14 for logging in my project and I am also using Java 7 String.format() to put variables in my output. Currently I am writing

LOGGER.info(String.format("Your var is [%s] and you are [%s]", myVar, myVar1));

这真的是输出字符串的最佳方法吗?我觉得log4j应该如下隐式实现:

Is this really the best way to output strings? I feel that log4j should have this implemented implicitly as below:

LOGGER.info("Your var is [%s] and you are [%s]", myVar, myVar1);

我错过了什么吗?此外，是否有任何Java日志记录框架支持此功能?

Have I missed something? Further, are there any Java logging frameworks that support this?

推荐答案

slf4j 的api提供了"参数化日志记录"，尽管语法略有不同，但您可以做到这一点.示例如下:

slf4j's api provides "parameterized logging", which allows you to do exactly that, although with a slightly different syntax. The example there is:

logger.debug("Value {} was inserted between {} and {}.", newVal, below, above);

对于实现，您可以使用本地实现slf4j的Logback，也可以使用slf4j绑定与log4j或其他记录器连接. 用户手册对此进行了解释，并附有一个简短的示例.

For an implementation, you can use Logback which implements slf4j natively, or the slf4j bindings to connect with log4j or other loggers. The User Manual explains that, along with a short example.

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