无法在Springboot Gradle项目中解析@Entity和javax.persistence.Entity

Question

I am following the guide on https://spring.io/guides/gs/accessing-data-mysql/ to start using MySQL for Gradle project, however, when I try to add in @Entity annotation it all

Here is my build.gradle, which follows the same thing on the website:

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:2.0.5.RELEASE")
    }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'

bootJar {
    baseName = 'gs-accessing-data-mysql'
    version =  '0.1.0'
}

repositories {
    mavenCentral()
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

dependencies {
    compile("org.springframework.boot:spring-boot-starter-web")

    // JPA Data (We are going to use Repositories, Entities, Hibernate, etc...)
    compile 'org.springframework.boot:spring-boot-starter-data-jpa'
    compile group: 'javax.persistence', name: 'persistence-api', version: '1.0'

    // Use MySQL Connector-J
    compile 'mysql:mysql-connector-java'

    testCompile('org.springframework.boot:spring-boot-starter-test')
}

Answer 1

Remove compile group: 'javax.persistence', name: 'persistence-api', version: '1.0' and try below after this as jar might be corrupted.

1. Run ./gradlew clean install then check..

2. if above not work: then delete ~/.gradle/caches and again run gradle install command to re-import all dependencies.

3. Restart IDE and again import project.

Answer 2

As you can seee in dependency tree of SpringBoot, javax.persistence is already included in spring-boot-starter-data-jpa and it's not 1.0 .

Remove:

compile group: 'javax.persistence', name: 'persistence-api', version: '1.0'