如何在Java中继续登录同一行？ [英] How to continue log on same line in Java?

问题描述

这类似于这个问题，这是关于bash文件。

我们创建了一个日志，在我们运行TestNG测试时输出到控制台：

We've created a log which outputs to the console while we're running our TestNG tests:

private Log log = LogFactory.getLog(xyz.class);

稍后，在测试期间，日志中充满了详细信息，让我们知道究竟是什么完成：

Later on, during the tests, the log is filled with details to let us know what exactly is being done:

log.info("Setting browser...");
this.browser = browser;
log.info("Completed.");

现在正按照您的预期打印出来：

Right now it's printing out as you would expect:

Setting browser...
Completed.

我想在同一行打印出来：

I'd like to have this print out on the same line:

Setting browser...

几毫秒之后：

Setting browser...Completed.

这是否可以使用LogFactory？

Is this possible with the LogFactory?

推荐答案

在不知道您正在使用哪个日志库的情况下，我猜几乎可以肯定不是，除非您想明确指定换行符在其他地方。

Without knowing precisely which logging library you are using, I would guess that the answer is almost certainly not unless you want to explicitly specify a newline character everywhere else.

java.util.logging （以及 Log4J ）框架允许您插入格式化程序来格式化您的语句。您需要指定一个不以换行符结尾的格式。例如，在 Log4J 。他们给出了一个示例模式

The java.util.logging (and Log4J) frameworks allow you to plugin formatters to format your statements. You'd need to specify a format which did not end with a newline character. For example, in Log4J. they give an example pattern as

 %-5p [%t]: %m%n

因此，如果您删除除以外的所有内容％m （％n 是换行符，其他内容包括时间和日志级别; ％t 和<$我认为c $ c>％p ，新行不会自动附加到每个语句。

So if you removed everything except the %m (the %n is the newline and the other stuff includes the time and log-level; %t and %p respectively, I think), newlines would not be automatically appended to each statement.

然而，这意味着无处不在否则，你的其他日志语句必须如下所示：

However, this means that everywhere else, your other log statements would have to look like this:

log.info("I want this on one line\n");

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