关于 SpringBoot 中日志自定义 Logback 配置的问题

[azev]

看 spring 官方这么说

8.1.1. Configure Logback for File-only Output

If you want to disable console logging and write output only to a file, you need a custom logback-spring.xml that imports file-appender.xml but not console-appender.xml, as shown in the following example:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml" />
    <property name="LOG_FILE" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}/}spring.log}"/>
    <include resource="org/springframework/boot/logging/logback/file-appender.xml" />
    <root level="INFO">
        <appender-ref ref="FILE" />
    </root>
</configuration>

You also need to add logging.file.name to your application.properties, as shown in the following example:

logging.file.name=myapplication.log

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有个疑问为什么还需要在 application.properties 中再定义 logging.file.name ？ 我测试了下 不设置这个变量没有影响啊

而且更重要的 当我同时设置 property name="LOG_FILE" 与 logging.file.name 发现 后者是无效的
有没有什么途径让后者覆盖前者？

[fmumu]

在 logback-spring.xml 中使用 spring 配置变量