我正在使用最新的jetty插件运行带有简单mvn jetty:run
的java webapp,但我似乎找不到告诉jetty将DEBUG消息输出到控制台的方法(对于嵌入式jetty实例) ,而不是插件本身)。它目前只输出WARN和INFO消息。我已尝试设置-DDEBUG
和-DVERBOSE
,但他们没有做任何事情。我已经看过documentation,但它似乎没有涵盖这一点。
答案 0 :(得分:18)
更新:好的,我终于开始工作了,这就是我的所作所为。
我的理解是Jetty 7对特定的日志框架没有任何依赖性,即使对于JSP引擎也是如此,因为Jetty 7使用JSP 2.1引擎。所以你可以使用任何日志框架。在这里,我将使用logback。
首先在插件中添加logback-classic
作为依赖项,并将logback.configurationFile
系统属性设置为指向配置文件:
<project>
...
<build>
...
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>7.0.0.pre5</version>
<configuration>
<systemProperties>
<systemProperty>
<name>logback.configurationFile</name>
<value>./src/etc/logback.xml</value>
</systemProperty>
</systemProperties>
</configuration>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>0.9.15</version>
</dependency>
</dependencies>
</plugin>
...
</plugins>
</build>
...
</project>
然后添加src/etc/logback.xml
配置文件。低于最小配置:
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</Pattern>
</layout>
</appender>
<root level="debug">
<appender-ref ref="STDOUT"/>
</root>
</configuration>
通过此设置,jetty将输出DEBUG消息:
$ mvn jetty:run ... 00:31:33.089 [main] DEBUG org.mortbay.log - starting DefaultHandler@145e5a6 00:31:33.089 [main] DEBUG org.mortbay.log - started DefaultHandler@145e5a6 00:31:33.105 [main] DEBUG org.mortbay.log - starting RequestLogHandler@1e80761 00:31:33.106 [main] DEBUG org.mortbay.log - started RequestLogHandler@1e80761 00:31:33.106 [main] DEBUG org.mortbay.log - starting HandlerCollection@1485542 00:31:33.106 [main] DEBUG org.mortbay.log - started HandlerCollection@1485542 00:31:33.106 [main] DEBUG org.mortbay.log - starting org.mortbay.jetty.Server@a010ba 00:31:33.174 [main] DEBUG org.mortbay.log - started org.mortbay.jetty.nio.SelectChannelConnector$1@ee21f5 00:31:33.216 [main] INFO org.mortbay.log - Started SelectChannelConnector@0.0.0.0:8080 00:31:33.217 [main] DEBUG org.mortbay.log - started SelectChannelConnector@0.0.0.0:8080 00:31:33.217 [main] DEBUG org.mortbay.log - started org.mortbay.jetty.Server@a010ba [INFO] Started Jetty Server
资源:
答案 1 :(得分:11)
为了扩展Pascal的答案,这就是log4j的工作原理:
<project>
...
<build>
...
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>7.0.0.pre5</version>
<configuration>
<systemProperties>
<systemProperty>
<name>log4j.configurationFile</name>
<value>file:${project.basedir}/src/test/resources/log4j.properties</value>
</systemProperty>
</systemProperties>
</configuration>
<dependencies>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.6.1</version>
</dependency>
</dependencies>
</plugin>
...
</plugins>
</build>
...
</project>
这是您的${project.basedir}/src/test/resources/log4j.properties
:
log4j.rootLogger=INFO, CONSOLE
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern = [%-5p] %c: %m\n
log4j.logger.org.eclipse.jetty.util.log=INFO
其他资源:
答案 2 :(得分:5)
你也可以这样做“mvn -X jetty:run”
答案 3 :(得分:2)
要扩展Pascal和yegor256的答案,这就是它与SLF4J Simple logger
(这是最简单的选项,因为您只需要向slf4j-simple
添加依赖项)的方式:
<project>
...
<build>
...
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>7.0.0.pre5</version>
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.5</version>
</dependency>
</dependencies>
</plugin>
...
</plugins>
</build>
...
</project>
可以直接从Maven pom配置SLF4J Logger。默认值在http://www.slf4j.org/apidocs/org/slf4j/impl/SimpleLogger.html)
中描述例如,登录到具有更高调试级别(/tmp/output.log
)的文件TRACE
:
<configuration>
<systemProperties>
<systemProperty>
<name>org.slf4j.simpleLogger.logFile</name>
<value>/tmp/output.log</value>
</systemProperty>
<systemProperty>
<name>org.slf4j.simpleLogger.defaultLogLevel</name>
<value>trace</value>
</systemProperty>
</systemProperties>
</configuration>
答案 4 :(得分:0)
我觉得这个解决方案更方便
<resources>
<resource>
<directory>${project.basedir}/src/main/resources</directory>
<targetPath>${project.build.outputDirectory}</targetPath>
<includes>
<include>log4j.properties</include>
</includes>
</resource>
</resources>
也不要忘记粘贴
<overwrite>true</overwrite>
for resources plugin