在slf4j中使用decimalformat或logback来填充或识别号码，使它们对齐

Question

我在SLF4J中有这个日志语句（在它下面有Logback）：

        logger.info("{} has {} depots, {00} vehicles and {} customers with a search space of {}.", ...);

我得到了这个输出：

A-n62-k8 has 1 depots, 8 vehicles and 61 customers with a search space of 10^108.
A-n63-k10 has 1 depots, 10 vehicles and 62 customers with a search space of 10^111.

但是我想要这个输出，它会增加额外的空间填充/缩进：

A-n62-k8  has 1 depots,  8 vehicles and 61 customers with a search space of 10^108.
A-n63-k10 has 1 depots, 10 vehicles and 62 customers with a search space of 10^111.

这可以用SLF4J吗？

Answer 1

似乎没有。你应该对每个必须带有额外空格的参数使用String.format（...）。像这样的东西

logger.info("{} has {} depots, {} vehicles and {} customers with a search space of {}.", String.format("%-9s", "A-n62-k8"), "1", String.format("%-2s", "8"), "61", "10^108");