[英]Spring Boot app having trouble with logback.groovy config file
I am trying to get Spring Boot working with Logback and am running into an error/issue that I can't figure out. 我正在尝试让Spring Boot与Logback一起使用,并且遇到了我无法解决的错误/问题。
To reproduce this issue in its entirety, I created a Spring Boot Example repo on GitHub, but essentially, this is my application.yml
: 为了完整地重现此问题,我在GitHub上创建了一个Spring Boot Example存储库 ,但从本质上讲,这是我的application.yml
:
logging:
config: 'logback.groovy'
server:
port: 9200
error:
whitelabel:
enabled: false
And my logback.groovy
: 和我的logback.groovy
:
statusListener(OnConsoleStatusListener)
def LOG_PATH = '/opt/springbootexample/logs/springbootexample'
appender('CONSOLE', ConsoleAppender) {
encoder(PatternLayoutEncoder) {
pattern = '%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n'
}
}
appender('FILE', FileAppender) {
file = "${LOG_PATH}.log"
encoder(PatternLayoutEncoder) {
pattern = '%msg%n'
outputPatternAsHeader = true
}
}
appender('ROLLING', RollingFileAppender) {
encoder(PatternLayoutEncoder) {
Pattern = '%d %level %thread %mdc %logger - %m%n'
}
rollingPolicy(TimeBasedRollingPolicy) {
fileNamePattern = "${LOG_PATH}-%d{yyyy-MM}.zip"
maxHistory = 30
totalSizeCap = '1KB'
}
}
root(INFO, ["CONSOLE", "ROLLING"])
I've made sure that /opt/springbootexample/logs
exists I ran chmod -R 777 /opt/springbootexample
so my Spring Boot app should have no problem creating log files there and writing to them. 我确保/opt/springbootexample/logs
存在,我运行了chmod -R 777 /opt/springbootexample
所以我的Spring Boot应用程序应该在那里创建日志文件并将其写入就不会有问题。
When I run the app locally, I get no errors/exceptions/warnings; 在本地运行该应用程序时,没有错误/异常/警告; everything looks perfectly fine in the console output. 在控制台输出中,一切看起来都很好。 I then fire up a browser and point it to http://localhost:9200
, which should return a simple dummy message, however nothing happens. 然后,我启动浏览器并将其指向http://localhost:9200
,该浏览器应返回一条简单的虚拟消息,但是什么也没有发生。 Even worse, nothing in the console happens either. 更糟糕的是,控制台中也没有任何反应。
The only clue is that after I've shut down the app, if I go to /opt/springbootexample/logs/springbootexample.log
, its contents are: 唯一的提示是,在关闭应用程序后,如果转到/opt/springbootexample/logs/springbootexample.log
,其内容为:
#logback.classic pattern: %msg%n
Which tells me that perhaps there's something misconfigured in my logback.groovy
's FileAppender
maybe? 这告诉我也许logback.groovy
的FileAppender
可能配置错误? Any ideas/thoughts? 有什么想法/想法吗?
Your application works (web page loads correctly and shows "Greetings from Spring Boot!"), your logging configuration is just a little wonky. 您的应用程序正常工作(网页已正确加载并显示“ Spring Boot的问候!”),您的日志记录配置有些奇怪。
First problem is that you forgot to add the non-rolling file appender to your root logger. 第一个问题是您忘记将非滚动文件附加程序添加到根记录器中。 Just add "FILE"
to the list at the bottom of logback.groovy
like so: 只需将"FILE"
添加到logback.groovy
底部的列表中logback.groovy
如下所示:
root(INFO, ["FILE", "CONSOLE", "ROLLING"])
// ^^^^^^^
And the log works. 和日志工作。 Without this, the appender is initialized, the file created with the "weird header" (because you chose to use outputPatternAsHeader = true
), and nothing is ever appended, because you chose not to. 否则,将初始化附加程序,并使用“怪异的标头”创建文件(因为您选择使用outputPatternAsHeader = true
),并且由于未选择不附加任何内容。
So the only weird issue is why the web page does not load for you... But perhaps you'll get more info if the log works :) 因此,唯一奇怪的问题是为什么网页无法为您加载...但是如果日志有效,也许您会获得更多信息:)
Try something much simpler for LOG_PATH
, such as def LOG_PATH = '/tmp/foo'
, because if that is wrong the server will shut down, and obviously the page will fail to load. 为LOG_PATH
尝试更简单的LOG_PATH
,例如def LOG_PATH = '/tmp/foo'
,因为如果这是错误的,服务器将关闭,显然该页面将无法加载。
If the path points to something that exists and is writable, it will work. 如果路径指向存在且可写的内容,则它将起作用。
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