我们可以在log4net％property中将字符限制为10个字符吗? [英] Can we set the characters limited to 10 characters in log4net %property?

问题描述

这是我的threadContext异常消息属性

This is my threadContext exception message property

log4net.ThreadContext.Properties["excmessage"] = ex.Message;

我想使用log4net获得异常消息属性的前10个字符.

I want to get the first 10 characters of exception message property using log4net.

这是Log4net.config中的行:

This is the line in Log4net.config:

%property{excmessage}

推荐答案

据我所知，您只能从头开始截断"，这意味着您可以得到字符串的结尾:

As far as I can tell you can only "truncate from the beginning" which means you get the end of the string:

%.10property{excmessage}

这里是文档的链接: http://logging.apache. org/log4net/log4net-1.2.11/release/sdk/log4net.Layout.PatternLayout.html

Here is a link to the documentation: http://logging.apache.org/log4net/log4net-1.2.11/release/sdk/log4net.Layout.PatternLayout.html

我建议您填写两个属性:一个带有异常消息，另一个带有截短的消息.

I suggest that you fill two properties: one with the exception message and the other with the truncated message.

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