Question

我正在使用带有Kotlin和Hibernate的Spring Boot 2构建应用程序。当我运行任何测试时，一切似乎都正确。

但是，当我尝试使用IDEA Spring Boot Run配置运行应用程序时，在使用位置出现以下错误：

java.lang.IllegalStateException: ServiceEntity_.alias must not be null

ServiceEntity_是使用hibernate-jpamodelgen和kotlin-kapt生成的类。没什么特别的。

ServiceEntity _ （build/generated/source/kapt/main/com/example/entity）

package com.example.entity;

import javax.annotation.Generated;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;

@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(ServiceEntity.class)
public abstract class ServiceEntity_ {
    public static volatile SingularAttribute<ServiceEntity, String> alias;
    public static volatile SingularAttribute<ServiceEntity, Integer> id;

    public static final String ALIAS = "alias";
    public static final String ID = "id";

}

此外，我还有下一个build.gradle脚本。

buildscript {
    ext.kotlin_version = '1.2.51'
    ext.spring_boot_version = '2.0.3.RELEASE'
    ext.spring_fw_version = '5.0.4.RELEASE'
    ext.hibernate_version = '5.3.1.Final'

    repositories {
        mavenCentral()
    }

    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath("org.springframework.boot:spring-boot-gradle-plugin:$spring_boot_version")
        classpath "org.jetbrains.kotlin:kotlin-noarg:$kotlin_version"
        classpath("org.jetbrains.kotlin:kotlin-allopen:$kotlin_version")
    }
}

group 'com.example'
version '0.0.1'

apply plugin: 'kotlin'
apply plugin: 'kotlin-spring'
apply plugin: 'kotlin-kapt'
apply plugin: "kotlin-jpa"
apply plugin: 'application'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'

kapt {
    correctErrorTypes = true
}

repositories {
    mavenCentral()
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    kapt "org.hibernate:hibernate-jpamodelgen:${hibernate_version}"

    compile group: 'org.springframework.boot', name: 'spring-boot-devtools', version: "$spring_boot_version"
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: "$spring_boot_version"
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: "$spring_boot_version"
    compile group: 'org.springframework.security', name: 'spring-security-web', version: "$spring_fw_version"
    compile group: 'org.springframework', name: 'spring-test', version: "$spring_fw_version"
    compile("org.springframework.boot:spring-boot-starter-actuator")

    compile group: 'org.apache.commons', name: 'commons-text', version: '1.4'
    compile group: 'commons-fileupload', name: 'commons-fileupload', version: '1.3.3'
    compile group: 'org.mockito', name: 'mockito-core', version: '2.16.0'
    compile group: 'com.fasterxml.jackson.module', name: 'jackson-module-kotlin', version: '2.9.+'
    compile group: 'commons-codec', name: 'commons-codec', version: '1.11'

    compile group: 'org.hibernate', name: 'hibernate-core', version: "$hibernate_version"
    compile group: 'org.postgresql', name: 'postgresql', version: '42.2.2'

    compile group: 'junit', name: 'junit', version: '4.12'
}


sourceCompatibility = 1.8
compileKotlin {
    kotlinOptions {
        jvmTarget = "1.8"
    }
}
compileTestKotlin {
    kotlinOptions {
        jvmTarget = "1.8"
    }
}

task buildArtifacts(dependsOn: bootJar) {
    copy {
        from bootJar
        into "artifacts"
        rename { String fileName ->
            fileName.replace("-" + bootJar.getVersion(), "")
        }
    }


    copy {
        from "application.properties"
        into "artifacts"
    }

    copy {
        from "application-prod.properties"
        into "artifacts"
    }

}

有一件事很奇怪。当我手动运行buildArtifacts然后运行生成的jar时，所有工作都很好，就像在测试中一样。单元测试用@RunWith(SpringRunner::class)和@SpringBootTest注释。

我想，bootRun任务似乎已损坏或配置错误。

测试正常后，Kotlin Spring Boot Gradle主模块无法正常工作

0 个答案: