How to add ojdbc7 to Java web app by Gradle?
<p>My context:</p>

<ul>
<li>I build a Java web application what based on Spring Boot
1.3.5.RELEASE . </li>
<li>I try to add <code>ojdcb</code> to dependencies list but not success. </li>
<li>I know that Oracle has own Maven repository at
<code>http://maven.oracle.com</code></li>
</ul>

<p>This is my <code>build.gradle</code> file, Let focus at line 4, 5, 6, 36:</p>

<pre><code>buildscript {
    repositories {
        mavenCentral()
        maven {
            url ("https://maven.oracle.com")
        }
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.3.5.RELEASE")

    }
}

apply plugin: 'war'
apply plugin: 'idea'
apply plugin: 'spring-boot'

jar {
    baseName = 'erp'
    version = '1.0.0'
}

repositories {
    mavenCentral()
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

dependencies {
    compile("org.springframework.boot:spring-boot-starter-thymeleaf")
    //compile("org.springframework.boot:spring-boot-starter-security")
    providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
    compile("org.springframework.boot:spring-boot-starter-data-jpa")
    compile("org.hibernate:hibernate-core")
    compile("com.oracle.jdbc:ojdbc7:12.1.0.2")
    testCompile("junit:junit")
}
</code></pre>

<p>IntelliJ IDEA 2016 notice error:</p>

<blockquote>
  <p>Warning:<i><b>root project 'erp': Web Facets/Artifacts will not be
  configured properly</b> Details:
  org.gradle.api.artifacts.ResolveException: Could not resolve all
  dependencies for configuration ':runtime'. Caused by:
  org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not
  find com.oracle.jdbc:ojdbc7:12.1.0.2. Required by:
      :erp:unspecified</i></p>
</blockquote>

<p><a href="https://i.stack.imgur.com/gq46D.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/gq46D.jpg" alt="enter image description here"></a></p>

<p>(Related links: <a href="http://docs.oracle.com/middleware/1213/core/MAVEN/config_maven_repo.htm#MAVEN9015" rel="noreferrer">http://docs.oracle.com/middleware/1213/core/MAVEN/config_maven_repo.htm#MAVEN9015</a>
<a href="https://blogs.oracle.com/dev2dev/entry/how_to_get_oracle_jdbc" rel="noreferrer">https://blogs.oracle.com/dev2dev/entry/how_to_get_oracle_jdbc</a>
<a href="https://blogs.oracle.com/dev2dev/entry/oracle_maven_repository_instructions_for" rel="noreferrer">https://blogs.oracle.com/dev2dev/entry/oracle_maven_repository_instructions_for</a>
)</p>

<p>Help me add <code>ojdbc</code> to dependencies list by Gradle, thank you!</p>