java - gradle 将子项目返回为 null

Question

我想迭代项目的子项目，并为每个 someproject 调用带有特定参数的 JavaExec 任务。

项目结构是这样的

rootProject\
settings.gradle
 build.gradle
    semiRootProject\
    build.gradle
        application\
        build.gradle
        proj1\
        gradle.properties
        proj2\
        gradle.properties

我试图这样做，但它抛出一个错误

task packageJar(dependsOn: build) {    
    project(":semiRootProject").subprojects.each { 

        logger.lifecycle "Project name: " it.name
        if (it.name != "application") {

            doLast {
                javaexec {
                    main = 'com.xxxx.util.KiePackageCreator'
                    classpath = sourceSets.main.runtimeClasspath + it.sourceSets.main.runtimeClasspath
                    args = [ it.name, it.group , it.version, it.buildDir ]
                }
            }
        }
    }
}

错误是

Cannot get property 'it' on null object

有什么问题吗？

Answer 1

看来，您正在尝试将消息文本的一部分作为记录器参数传递，因此只需尝试修改此行:

logger.lifecycle "Project name: " it.name

至

logger.lifecycle "Project name: " + it.name