原因：javax.persistence.persistenceException：无法解析持久性单位根URL

Question

buildscript {
repositories {
    mavenCentral()
}
dependencies {
    classpath("org.springframework.boot:spring-boot-gradle-plugin:1.4.0.RELEASE")
}
}
group 'batch'
version '1.0-SNAPSHOT'

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

bootRun {
addResources = true
}

war {
baseName = 'Batch'
version =  '0.1.0'
manifest {
    attributes 'Main-Class': 'com.Application'
}
}
jar {
manifest {
    attributes 'Main-Class': 'src.main.java.com.Application'
}
}
sourceCompatibility = 1.7
targetCompatibility = 1.7

repositories {
mavenCentral()
}
dependencies {
compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '1.5.6.RELEASE'
compile group: 'mysql', name: 'mysql-connector-java', version: '5.1.24'
compile group: 'org.json', name: 'json', version: '20180130'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa', version: '1.5.6.RELEASE'
compile group: 'javax.servlet', name: 'jstl', version: '1.2'
compile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-jasper', version: '7.0.82'
compile group: 'org.springframework.boot', name: 'spring-boot-starter-tomcat', version: '1.2.4.RELEASE'
compile group: 'org.springframework.data', name: 'spring-data-jpa', version: '1.7.4.RELEASE'
compile group: 'org.eclipse.persistence', name: 'javax.persistence', version: '2.1.1'
}

ConfigEmbeddedWebApplicationContext：上下文初始化过程中遇到异常-取消刷新att empt：org.springframework.beans.factory.beanCreationException：创建类路径资源[org/springframework/boot/autoconfiguration/orm/jpa/hibernatejpaAutoConfiguration.class]中定义的名为“Entity ManagerFactory”的bean时出错：调用init方法失败；嵌套异常为javax.persistence.persistenceException：无法解析持久单元根URL 2018-05-14 21:11:04.427信息3136---[main]o.apache.catalina.core.StandardService：停止服务Tomcat 2018-05-14 21:11:04.505信息3136---[main]utoConfigurationReportLoggingInitializer:

启动ApplicationContext时出错。要显示自动配置报告，请启用调试日志记录（从--debug开始）

2018-05-14 21:11:04.552错误3136---[main]O.S.Boot.SpringApplication：应用程序启动失败

Answer 1

解决方案：

已删除

compile group: 'org.eclipse.persistence', name: 'javax.persistence', version: '2.1.1'

添加了如下所示的类

@Entity
public class TestEntity {
    @Id
    @GeneratedValue
    private int id;
}