java - Maven configuration not work -


this question has answer here:

i want able use different log4j configuration different environments. if run project in tomcat (localhost:8080) need use dev.properties, if run project in product server need use prod.properties. found described here copied code best answer, pom.xml display error:

<build>     <finalname>secure-exam</finalname>     <plugins>         <plugin>             <artifactid>maven-compiler-plugin</artifactid>             <configuration>                 <source>1.7</source>                 <target>1.7</target>             </configuration>             <executions>                 <execution>                     <id>log4j</id>                     <phase>process-resources</phase>                     <goals>                         <goal>copy-resources</goal>                     </goals>                     <configuration>                         <outputdirectory>output_directory</outputdirectory>                         <resources>                             <resource>${log4j.file}</resource>                         </resources>                     </configuration>                 </execution>             </executions>         </plugin>     </plugins> </build> <profiles>     <profile>         <id>dev</id>         <activation>             <activebydefault>true</activebydefault>         </activation>         <properties>             <log4j.file>/home/name/workspace/spring/src/main/resources/console_log4j.properties</log4j.file>         </properties>     </profile>     <profile>         <id>prod</id>         <properties>             <log4j.file>/home/name/workspace/spring/src/main/resources/fiile_log4j.properties</log4j.file>         </properties>     </profile> </profiles>

this error show in pom.xml file

show cannot resolve sympol `copy-resources` element outputdirectory not allowed here element resources not allowed here element resource not allowed here

please tell me how configure in pom.xml?

edit

<plugin>     <groupid>org.apache.maven.plugins</groupid>     <artifactid>maven-compiler-plugin</artifactid>     <version>3.1</version>     <configuration>         <source>1.7</source>         <target>1.7</target>     </configuration> </plugin>

you didn't copy properly. need use resource plugin , not compiler plugin

    <groupid>org.apache.maven.plugins</groupid>     <artifactid>maven-resources-plugin</artifactid>     <version>2.5</version>     <executions>

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