Grails 3 - Gradle dependecies Mysql Connector

Question

I have set up a grails app using grails 3.0.9

Now I want to add the mysql connector to bring up an connection to a mysql database.

Therefore I have added an entry to my build.gradle, but the connector is not fetched by gradle.

buildscript {
    ext {
        grailsVersion = project.grailsVersion
    }
    repositories {
        mavenLocal()
        maven { url "https://repo.grails.org/grails/core" }
    }
    dependencies {
        classpath "org.grails:grails-gradle-plugin:$grailsVersion"
        classpath "com.bertramlabs.plugins:asset-pipeline-gradle:2.5.0"
        classpath "org.grails.plugins:hibernate:4.3.10.5"
        classpath "mysql:mysql-connector-java:5.1.37"
    }
}

plugins {
    id "io.spring.dependency-management" version "0.5.2.RELEASE"
}

version "0.1"
group "nexttext"

apply plugin: "spring-boot"
apply plugin: "war"
apply plugin: "asset-pipeline"
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: "org.grails.grails-web"
apply plugin: "org.grails.grails-gsp"

ext {
    grailsVersion = project.grailsVersion
    gradleWrapperVersion = project.gradleWrapperVersion
}

assets {
    minifyJs = true
    minifyCss = true
}

repositories {
    mavenLocal()
    maven { url "https://repo.grails.org/grails/core" }
}

dependencyManagement {
    imports {
        mavenBom "org.grails:grails-bom:$grailsVersion"
    }
    applyMavenExclusions false
}

dependencies {
    compile "org.springframework.boot:spring-boot-starter-logging"
    compile "org.springframework.boot:spring-boot-starter-actuator"
    compile "org.springframework.boot:spring-boot-autoconfigure"
    compile "org.springframework.boot:spring-boot-starter-tomcat"
    compile "org.grails:grails-dependencies"
    compile "org.grails:grails-web-boot"

    compile "org.grails.plugins:hibernate"
    compile "org.grails.plugins:cache"
    compile "org.hibernate:hibernate-ehcache"
    compile "org.grails.plugins:scaffolding"

    runtime "org.grails.plugins:asset-pipeline"

    testCompile "org.grails:grails-plugin-testing"
    testCompile "org.grails.plugins:geb"

    // Note: It is recommended to update to a more robust driver (Chrome, Firefox etc.)
    testRuntime 'org.seleniumhq.selenium:selenium-htmlunit-driver:2.44.0'

    console "org.grails:grails-console"
}

task wrapper(type: Wrapper) {
    gradleVersion = gradleWrapperVersion
}

Don't know what I am doing wrong but I get an ClassNotFoundException.

Answer 1

Adding a local gradle installation to Intellij seems to solve the problem. I think that the included gradle-wrapper caused the trouble.

So downloading gradle 2.8 and setting it to use in Settings -> Build... -> Build Tools -> Gradle solved the problem.

Now the mysql connector is showing up under External Libraries Gradle: mysql:mysql-connector-java:5.1.37

Answer 2

Add runtime "mysql:mysql-connector-java:5.1.37" to your dependencies (Right under runtime "org.grails.plugins:asset-pipeline"). Then compile it. That should do the trick.

In my Grails 3 project I don't have a classpath to the connector, so I think it is save to remove it there.

Also don't forget to add these lines to your application.yml under your dataSource:

driverClassName: com.mysql.jdbc.Driver
dialect: org.hibernate.dialect.MySQL5InnoDBDialect