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Java Intro to Java Web Development with Spark Diving into Web Development Meet Spark

Posted by Lee Haney
Lee Haney
395 Points

This pom.xml file works for this Spark project

I am using Visual Studio Code and Maven build tool for this project. I went to the Java Spark documentation at http://sparkjava.com/tutorials/maven-setup and copied their example of a pom.xml file into my own. After that, I added the slf4j dependency. Below is the pom.xml file that worked for me:

<project>
    <!-- model version - always 4.0.0 for Maven 2.x POMs -->
    <modelVersion>4.0.0</modelVersion>

    <!-- project coordinates - values which uniquely identify this project -->
    <groupId>com.teamtreehouse.courses</groupId>
    <artifactId>course-ideas</artifactId>
    <version>1.0</version>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <!-- library dependencies -->
    <dependencies>
        <dependency>
            <groupId>com.sparkjava</groupId>
            <artifactId>spark-core</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-jdk14</artifactId>
            <version>1.7.30</version>
        </dependency>
    </dependencies>
</project>

If you see this error message: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation. SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

It means you need to include an slf4j logging implementation in your maven dependencies For example, add the following to your pom.xml dependencies:

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-jdk14</artifactId>
        <version>1.7.30</version>
    </dependency>