如何记录 spring 引导 jar 文件异常

Question

创建Tomcat嵌入式JAR文件并将其安装在服务器上时，如何访问异常？最近我的服务器和进程突然停止，我不知道发生了什么。我检查了 Windows 事件查看器，但找不到任何东西。是否有异常写入文件的地方？

Answer 1

您应该在类路径中添加 application.properties 文件并在那里设置日志记录属性。

If the only change you need to make to logging is to set the levels of various loggers then you can do that in application.properties using the "logging.level" prefix, e.g.

logging.level.org.springframework.web=DEBUG
logging.level.org.hibernate=ERROR
logging.file=C:\myapplication.log

You can also set the location of a file to log to (in addition to the console) using "logging.file".

见here

Answer 2

By default, Spring Boot will only log to the console and will not write log files. If you want to write log files in addition to the console output you need to set a logging.file or logging.path property (for example in your application.properties).

java -Dlogging.file=target/my_logfile.log -jar spring_boot_app.jar
or 
java -Dlogging.path=target/logs -jar spring_boot_app.jar
(Will create spring.log file inside target/logs)

参考：http://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-logging.html#boot-features-logging-file-output

为了让生活更轻松，您可以使用 logback.xml 或 logback-spring.xml

以下是 logback.xml 的示例。将其包含在 src/main/resources 目录中。

<?xml version="1.0" encoding="UTF-8"?>

<configuration scan="true">
    <include resource="org/springframework/boot/logging/logback/base.xml"/>

<!-- The FILE and ASYNC appenders are here as examples for a production configuration -->

    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>logFile.%d{yyyy-MM-dd}.log</fileNamePattern>
            <maxHistory>90</maxHistory>
        </rollingPolicy>
        <encoder>
            <charset>utf-8</charset>
            <Pattern>%d %-5level [%thread] %logger{0}: %msg%n</Pattern>
        </encoder>
    </appender>

    <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender">
        <queueSize>512</queueSize>
        <appender-ref ref="FILE"/>
    </appender>


    <!-- your project package -->
    <logger name="com.test" level="INFO"/>

    <!-- <logger name="javax.activation" level="WARN"/>
    <logger name="javax.mail" level="WARN"/>
    <logger name="javax.xml.bind" level="WARN"/>
    <logger name="ch.qos.logback" level="WARN"/>
    <logger name="com.codahale.metrics" level="WARN"/>
    <logger name="com.ryantenney" level="WARN"/>
    <logger name="com.sun" level="WARN"/>
    <logger name="com.zaxxer" level="WARN"/>
    <logger name="io.undertow" level="WARN"/>
    <logger name="io.undertow.websockets.jsr" level="ERROR"/>
    <logger name="org.apache" level="WARN"/>
    <logger name="org.apache.catalina.startup.DigesterFactory" level="OFF"/>
    <logger name="org.bson" level="WARN"/>
    <logger name="org.hibernate.validator" level="WARN"/>
    <logger name="org.hibernate" level="WARN"/>
    <logger name="org.hibernate.ejb.HibernatePersistence" level="OFF"/>
    <logger name="org.springframework" level="WARN"/>
    <logger name="org.springframework.web" level="WARN"/>
    <logger name="org.springframework.security" level="WARN"/>
    <logger name="org.springframework.cache" level="WARN"/>
    <logger name="org.thymeleaf" level="WARN"/>
    <logger name="org.xnio" level="WARN"/>
    <logger name="springfox" level="WARN"/>
    <logger name="sun.rmi" level="WARN"/>
    <logger name="liquibase" level="WARN"/>
    <logger name="LiquibaseSchemaResolver" level="INFO"/>
    <logger name="sun.rmi.transport" level="WARN"/> -->

    <contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
        <resetJUL>true</resetJUL>
    </contextListener>

    <root level="INFO">
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="FILE"/>
    </root>

</configuration>

以上配置将生成日志到 JAR 文件的工作目录，其名称如 logFile.yyyy.MM.dd.log

如何记录 spring 引导 jar 文件异常

How log spring boot jar file exceptions

java

logging

spring

tomcat

executable-jar