Eclipse在运行或调试期间未使用Gradle依赖关系jar

Question

我正在尝试使用Gradle项目执行基本的休眠任务。

依赖罐由Gradle下载，并放置在项目和外部依赖库中。

我没有任何编译时错误。但是，当我尝试在Eclipse中运行或调试主类时，却发现未找到NoClassDefFoundError类。

Exception in thread "main" java.lang.NoClassDefFoundError: org/hibernate/cfg/Configuration

当我检查构建路径时，我可以看到依赖项库配置了必需的jar，但eclipse仍未使用它。

但是当我在构建路径中手动添加jar时，没有得到此异常。

Build.gradle文件

plugins {
    // Apply the java-library plugin to add support for Java Library
    id 'java-library'
}

apply plugin: "eclipse"

dependencies {
    // This dependency is exported to consumers, that is to say found on their compile classpath.
    api 'org.apache.commons:commons-math3:3.6.1'

    // This dependency is used internally, and not exposed to consumers on their own compile classpath.
    implementation 'com.google.guava:guava:23.0'

    // Use JUnit test framework
    testImplementation 'junit:junit:4.12'

    // https://mvnrepository.com/artifact/org.hibernate/hibernate-core
    compile group: 'org.hibernate', name: 'hibernate-core', version: '5.3.6.Final'

    // https://mvnrepository.com/artifact/com.oracle.jdbc/ojdbc6
    runtime group: 'com.oracle.jdbc', name: 'ojdbc6', version: '11.1.0.6.0'

    // https://mvnrepository.com/artifact/com.oracle/ojdbc6
    runtime group: 'com.oracle', name: 'ojdbc6', version: '11.2.0.4.0-atlassian-hosted'




}

// In this section you declare where to find the dependencies of your project
repositories {
    // Use jcenter for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
    mavenCentral()
}

提前谢谢！

Answer 1

我认为您应该使用构建文件中的最新更改来更新类路径。 Eclipse不会在所有版本中自动执行此操作。 转到程序包资源管理器，右键单击build.gradle文件，然后从上下文菜单中选择gradle-> refresh gradle项目。

您还可以从首选项菜单启用自动同步，转到gradle，然后选中“自动项目同步”复选框。

Answer 2

删除/注释此依赖性，然后尝试。

runtime group: 'com.oracle.jdbc', name: 'ojdbc6', version: '11.1.0.6.0' 

我的Build.gradle：

plugins {
    // Apply the java-library plugin to add support for Java Library
    id 'java-library'
}

dependencies {
    // This dependency is exported to consumers, that is to say found on their compile classpath.
    api 'org.apache.commons:commons-math3:3.6.1'

    // This dependency is used internally, and not exposed to consumers on their own compile classpath.
    implementation 'com.google.guava:guava:23.0'

    // Use JUnit test framework
    testImplementation 'junit:junit:4.12'

     // https://mvnrepository.com/artifact/org.hibernate/hibernate-core
    compile group: 'org.hibernate', name: 'hibernate-core', version: '5.3.6.Final'

    // https://mvnrepository.com/artifact/com.oracle.jdbc/ojdbc6
   // runtime group: 'com.oracle.jdbc', name: 'ojdbc6', version: '11.1.0.6.0'

    // https://mvnrepository.com/artifact/com.oracle/ojdbc6
    runtime group: 'com.oracle', name: 'ojdbc6', version: '11.2.0.4.0-atlassian-hosted'

}

// In this section you declare where to find the dependencies of your project
repositories {
    // Use jcenter for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
}

Answer 3

使用eclipse插件，添加了不同的构建任务：

./gradlew cleanEclipse eclipse