How to log the second argument in log4j
19,075
Solution 1
Though I was expecting some better solution, but this seems to be the only one available.
LogManager.getLogger(SomeName.class.getName()).info("Message: {}, Detail: {}", message, detail);
Solution 2
LogManager.getLogger().info(
"The {} is that {}, there are more {},"
+ " not necessarily in a message + details {}.",
"reason", "often", "parameters", "relationship");
Author by
Hassan
Like to learn new things, currently doing masters and writing code.
Updated on June 22, 2022Comments
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Hassan almost 2 years
I am trying to use log4j for the first time and I have configured it correctly, I just wanted to know how can I print the details of the argument passed as second parameter:
LogManager.getLogger(SomeName.class.getName()).info(message, detail);
and my configuration appender is:
<File name="file1" fileName="output.log"> <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/> </File>
I think there should be some switch within the pattern after
%msg
if I want to log the detail there. But I am not sure what or how.