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Log4net转换模式列表

c#.netlogginglog4net
45
有没有一个完整的log4net转换模式列表？我甚至在源代码中都找不到它们。
我找到的只有this；难道不应该有更多的模式吗？例如，我如何获取托管应用程序的名称？
另外，我如何添加自己的模式？
这是一个类似的列表，但是针对nlog。
编辑：我已经找到了应用程序名称的模式；它是[Application]。但我仍然在寻找更多的模式。有人能够至少指向管理这些模式的源文件吗？也许我可以从那里找到列表。
5
我在那个链接上得到了404错误，但找到了这个链接：https://logging.apache.org/log4net/log4net-1.2.15/release/sdk/html/T_log4net_Layout_PatternLayout.htm（通过使用https://logging.apache.org/log4net/log4net-1.2.15/release/sdk/上的索引找到）。 - Josh Sutterfield
4个回答
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4
不应该这样使用链接，否则它们会失效。 - Nicholas DiPiazza
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11
在编写此文时，log4net的转换模式文档是有效的。如果由于任何原因而导致log4net消失，那么这里是waybackmachine文章的链接。
如果您不想浏览其他网页，只是想要完整的列表（为什么不呢？），您可以在下面找到它：
Conversion Pattern Name Effect
a Equivalent to appdomain
appdomain Used to output the friendly name of the AppDomain where the logging event was generated.
aspnet-cache Used to output all cache items in the case of %aspnet-cache or just one named item if used as %aspnet-cache{key}

This pattern is not available for Compact Framework or Client Profile assemblies.
aspnet-context Used to output all context items in the case of %aspnet-context or just one named item if used as %aspnet-context{key}

This pattern is not available for Compact Framework or Client Profile assemblies.
aspnet-request Used to output all request parameters in the case of %aspnet-request or just one named param if used as %aspnet-request{key}

This pattern is not available for Compact Framework or Client Profile assemblies.
aspnet-session Used to output all session items in the case of %aspnet-session or just one named item if used as %aspnet-session{key}

This pattern is not available for Compact Framework or Client Profile assemblies.
c Equivalent to logger
C Equivalent to type
class Equivalent to type
d Equivalent to date
date Used to output the date of the logging event in the local time zone. To output the date in universal time use the %utcdate pattern. The date conversion specifier may be followed by a date format specifier enclosed between braces. For example, %date{HH:mm:ss,fff} or %date{dd MMM yyyy HH:mm:ss,fff}. If no date format specifier is given then ISO8601 format is assumed (Iso8601DateFormatter).

The date format specifier admits the same syntax as the time pattern string of the ToString.

For better results it is recommended to use the log4net date formatters. These can be specified using one of the strings "ABSOLUTE", "DATE" and "ISO8601" for specifying AbsoluteTimeDateFormatter, DateTimeDateFormatter and respectively Iso8601DateFormatter. For example, %date{ISO8601} or %date{ABSOLUTE}.

These dedicated date formatters perform significantly better than ToString.
exception Used to output the exception passed in with the log message.

If an exception object is stored in the logging event it will be rendered into the pattern output with a trailing newline. If there is no exception then nothing will be output and no trailing newline will be appended. It is typical to put a newline before the exception and to have the exception as the last data in the pattern.
F Equivalent to file
file Used to output the file name where the logging request was issued.

WARNING Generating caller location information is extremely slow. Its use should be avoided unless execution speed is not an issue.

See the note below on the availability of caller location information.
identity Used to output the user name for the currently active user (Principal.Identity.Name).

WARNING Generating caller information is extremely slow. Its use should be avoided unless execution speed is not an issue.
l Equivalent to location
L Equivalent to line
location Used to output location information of the caller which generated the logging event.

The location information depends on the CLI implementation but usually consists of the fully qualified name of the calling method followed by the callers source the file name and line number between parentheses.

The location information can be very useful. However, its generation is extremely slow. Its use should be avoided unless execution speed is not an issue.

See the note below on the availability of caller location information.
level Used to output the level of the logging event.
line Used to output the line number from where the logging request was issued.

WARNING Generating caller location information is extremely slow. Its use should be avoided unless execution speed is not an issue.

See the note below on the availability of caller location information.
logger Used to output the logger of the logging event. The logger conversion specifier can be optionally followed by precision specifier, that is a decimal constant in brackets.

If a precision specifier is given, then only the corresponding number of right most components of the logger name will be printed. By default the logger name is printed in full.

For example, for the logger name "a.b.c" the pattern %logger{2} will output "b.c".
m Equivalent to message
M Equivalent to method
message Used to output the application supplied message associated with the logging event.
mdc The MDC (old name for the ThreadContext.Properties) is now part of the combined event properties. This pattern is supported for compatibility but is equivalent to property.
method Used to output the method name where the logging request was issued.

WARNING Generating caller location information is extremely slow. Its use should be avoided unless execution speed is not an issue.

See the note below on the availability of caller location information.
n Equivalent to newline
newline Outputs the platform dependent line separator character or characters.

This conversion pattern offers the same performance as using non-portable line separator strings such as "\n", or "\r\n". Thus, it is the preferred way of specifying a line separator.
ndc Used to output the NDC (nested diagnostic context) associated with the thread that generated the logging event.
p Equivalent to level
P Equivalent to property
properties Equivalent to property
property Used to output the an event specific property. The key to lookup must be specified within braces and directly following the pattern specifier, e.g. %property{user} would include the value from the property that is keyed by the string 'user'. Each property value that is to be included in the log must be specified separately. Properties are added to events by loggers or appenders. By default the log4net:HostName property is set to the name of machine on which the event was originally logged.

If no key is specified, e.g. %property then all the keys and their values are printed in a comma separated list.

The properties of an event are combined from a number of different contexts. These are listed below in the order in which they are searched.

the event properties The event has Properties that can be set. These properties are specific to this event only. the thread properties The Properties that are set on the current thread. These properties are shared by all events logged on this thread. the global properties The Properties that are set globally. These properties are shared by all the threads in the AppDomain.
r Equivalent to timestamp
stacktrace Used to output the stack trace of the logging event The stack trace level specifier may be enclosed between braces. For example, %stacktrace{level}. If no stack trace level specifier is given then 1 is assumed

Output uses the format: type3.MethodCall3 > type2.MethodCall2 > type1.MethodCall1

This pattern is not available for Compact Framework assemblies.
stacktracedetail Used to output the stack trace of the logging event The stack trace level specifier may be enclosed between braces. For example, %stacktracedetail{level}. If no stack trace level specifier is given then 1 is assumed

Output uses the format: type3.MethodCall3(type param,...) > type2.MethodCall2(type param,...) > type1.MethodCall1(type param,...)

This pattern is not available for Compact Framework assemblies.
t Equivalent to thread
timestamp Used to output the number of milliseconds elapsed since the start of the application until the creation of the logging event.
thread Used to output the name of the thread that generated the logging event. Uses the thread number if no name is available.
type Used to output the fully qualified type name of the caller issuing the logging request. This conversion specifier can be optionally followed by precision specifier, that is a decimal constant in brackets.

If a precision specifier is given, then only the corresponding number of right most components of the class name will be printed. By default the class name is output in fully qualified form.

For example, for the class name "log4net.Layout.PatternLayout", the pattern %type{1} will output "PatternLayout".

WARNING Generating the caller class information is slow. Thus, its use should be avoided unless execution speed is not an issue.

See the note below on the availability of caller location information.
u Equivalent to identity
username Used to output the WindowsIdentity for the currently active user.

WARNING Generating caller WindowsIdentity information is extremely slow. Its use should be avoided unless execution speed is not an issue.
utcdate Used to output the date of the logging event in universal time. The date conversion specifier may be followed by a date format specifier enclosed between braces. For example, %utcdate{HH:mm:ss,fff} or %utcdate{dd MMM yyyy HH:mm:ss,fff}. If no date format specifier is given then ISO8601 format is assumed (Iso8601DateFormatter).

The date format specifier admits the same syntax as the time pattern string of the ToString.

For better results it is recommended to use the log4net date formatters. These can be specified using one of the strings "ABSOLUTE", "DATE" and "ISO8601" for specifying AbsoluteTimeDateFormatter, DateTimeDateFormatter and respectively Iso8601DateFormatter. For example, %utcdate{ISO8601} or %utcdate{ABSOLUTE}.

These dedicated date formatters perform significantly better than ToString.
w Equivalent to username
x Equivalent to ndc
X Equivalent to mdc
% The sequence %% outputs a single percent sign.
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就官方模式列表而言，我认为你已经找到了它！ :)
关于获取托管应用程序的名称，那不是'appdomain'转换模式名称吗？不确定为什么需要它，因为AppDomain.ToString()重载在'a'模式中返回应用程序友好名称...啊...等等，ToString()还包括上下文策略，在这种情况下可能是额外的干扰。
至于添加自己的模式，10秒钟的谷歌搜索返回this link。
网页内容由stack overflow 提供, 点击上面的
可以查看英文原文，
原文链接