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POLogback with Spring MVC doesn't work
 

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  1. POLogback with Spring MVC doesn't work
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    <p>I developed a webapp with Spring MVC and build it with maven. I want to improve logging using logback sl4j logging framework, but I'm completely new to it. I modifide my pom.xml this way:</p> <pre><code>&lt;!-- Spring 3 dependencies --&gt; &lt;dependency&gt; &lt;groupId&gt;org.springframework&lt;/groupId&gt; &lt;artifactId&gt;spring-context&lt;/artifactId&gt; &lt;version&gt;${spring.version}&lt;/version&gt; &lt;exclusions&gt; &lt;!--Exclude Commons Logging in favor of SLF4j--&gt; &lt;exclusion&gt; &lt;groupId&gt;commons-logging&lt;/groupId&gt; &lt;artifactId&gt;commons-logging&lt;/artifactId&gt; &lt;/exclusion&gt; &lt;/exclusions&gt; &lt;/dependency&gt; &lt;!-- Logging --&gt; &lt;dependency&gt; &lt;groupId&gt;org.slf4j&lt;/groupId&gt; &lt;artifactId&gt;slf4j-api&lt;/artifactId&gt; &lt;version&gt;1.6.1&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;ch.qos.logback&lt;/groupId&gt; &lt;artifactId&gt;logback-classic&lt;/artifactId&gt; &lt;version&gt;${logback.version}&lt;/version&gt; &lt;/dependency&gt; &lt;dependency&gt; &lt;groupId&gt;ch.qos.logback&lt;/groupId&gt; &lt;artifactId&gt;logback-core&lt;/artifactId&gt; &lt;version&gt;${logback.version}&lt;/version&gt; &lt;/dependency&gt; </code></pre> <p>and then added the following lines to my custom exception DatabaseException:</p> <pre><code> private final static Logger logger = (Logger) LoggerFactory.getLogger(DatabaseException.class); </code></pre> <p>...</p> <pre><code>public DatabaseException(Throwable cause) { super(cause); logger.log(Level.WARNING, cause.getMessage()); } </code></pre> <p>then I added under classpath logback.xml configuration file.</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;configuration&gt; &lt;appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"&gt; &lt;!-- encoders are assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder by default --&gt; &lt;encoder&gt; &lt;pattern&gt;%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n&lt;/pattern&gt; &lt;/encoder&gt; &lt;/appender&gt; &lt;logger name='org.springframework'&gt; &lt;level value='INFO' /&gt; &lt;/logger&gt; &lt;root level="debug"&gt; &lt;appender-ref ref="STDOUT" /&gt; &lt;/root&gt; &lt;/configuration&gt; </code></pre> <p>So when I rise this exception I would logback to print to stdout some message BUT nothing. When I deploy and run the app with tomcat it prints only container logs [talledContainer]-INFO ... etc etc and there is no trace of my logger and I don't figure out why, can you help me?</p>
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    1. COWhat is the full qualified name of the `Logger`? `ch.qos.logback.classic.Logger` or `org.slf4j.Logger`? Why you need to cast it?
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      1. POLogback with Spring MVC doesn't work
      1. USCharlee Chitsuk
    2. COBecause without the cast it is qualified as slf4j.Logger and netbeans rise a compile error
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      1. USandPat
    3. CO@andPat please provide the relevant `import` statements to show what `Logger` and `LoggerFactory` you're using. Also, have you checked the output from Tomcat to ensure there aren't any slf4j setup warnings printed?
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      1. POLogback with Spring MVC doesn't work
      1. USPeter Mularien
 

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