Question

下面是在log4j2.xml中配置的JSONLayout

        <JSONLayout complete="true" charset="UTF-8" compact="true">
            <KeyValuePair key="application-name" value="sample-app"></KeyValuePair>
        </JSONLayout>

POM.xml

org.apache.logging.log4j:log4j-core:jar:2.7:compile
org.apache.logging.log4j:log4j-api:jar:2.7:compile
org.apache.logging.log4j:log4j-jul:jar:2.7:compile
com.fasterxml.jackson.core:jackson-databind:jar:2.9.9:compile

我看到消息以JSON格式打印，但是不知道键值对。

2019-06-01 21:11:23,305 localhost-startStop-1 ERROR layout JSONLayout has no parameter that matches element KeyValuePair
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

知道为什么不能识别键值对吗？

Answer 1

log4j2 2.7版没有将此KeyValuePair功能作为JSONLayout的嵌套元素。使用2.11.2版或log4j依赖项来解决它-

org.apache.logging.log4j:log4j-core:jar:2.11.2:compile
org.apache.logging.log4j:log4j-api:jar:2.11.2:compile
org.apache.logging.log4j:log4j-jul:jar:2.11.2:compile
com.fasterxml.jackson.core:jackson-databind:jar:2.9.9:compile

JSONLayout没有与元素KeyValuePair匹配的参数

1 个答案: