小编use*_*LOL的帖子

从春季休息开始,我得到以下错误

org.springframework.beans.factory.BeanCreationException:创建名为'jpaMappingContext'的bean时出错:init方法的调用失败; 嵌套异常是java.lang.IllegalArgumentException:必须至少存在一个JPA元模型!在org.springframework上的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1595)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]. org.springframework.beans.factory.support上的beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:566)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT] org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject中的.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT] (AbstractBeanFactory.java:304)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java: 230)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT] org.springframework.beans.factory.suppo org.springframework.beans.factory.support.AbstractBeanFactory.getBean中的rt.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT] (AbstractBeanFactory.java:195)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java: 725)〜[spring-beans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)〜[spring-context在org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)〜[spring-context-5.0.0.BUILD- SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)〜[spring-boot-2.0 or.0.BUILD-SNAPSHOT.jar:2.0.0.BUILD-SNAPSHOT]在org.springframework.boot.SpringApplication.refresh(SpringApplication.java:736)[spring-boot-2.0.0.BUILD-SNAPSHOT.jar:2.0 .O.BUILD-SNAPSHOT] org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369)[spring-boot-2.0.0.BUILD-SNAPSHOT.jar:2.0.0.BUILD-SNAPSHOT] at org. springframework.boot.SpringApplication.run(SpringApplication.java:313)[spring-boot-2.0.0.BUILD-SNAPSHOT.jar:2.0.0.BUILD-SNAPSHOT]在org.springframework.boot.SpringApplication.run(SpringApplication. java:1161)[spring-boot-2.0.0.BUILD-SNAPSHOT.jar:2.0.0.BUILD-SNAPSHOT]在org.springframework.boot.SpringApplication.run(SpringApplication.java:1150)[spring-boot-2.0 com.java.app.QuickPollApplication.main中的.0.BUILD-SNAPSHOT.jar:2.0.0.BUILD-SNAPSHOT] [类/:na]引起:java.lang.IllegalArgumentException:At必须至少有一个JPA元模型!org.springframework.util.Assert.notEmpty(Assert.java:438)〜[spring-core-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.data.jpa. mapping.JpaMetamodelMappingContext.(JpaMetamodelMappingContext.java:52)〜[spring-data-jpa-1.11.0.BUILD-SNAPSHOT.jar:na] at org.springframework.data.jpa.repository.config.JpaMetamodelMappingContextFactoryBean.createInstance(JpaMetamodelMappingContextFactoryBean. java:71)〜[spring-data-jpa-1.11.0.BUILD-SNAPSHOT.jar:na] at org.springframework.data.jpa.repository.config.JpaMetamodelMappingContextFactoryBean.createInstance(JpaMetamodelMappingContextFactoryBean.java:26)〜[spring -data-jpa-1.11.0.BUILD-SNAPSHOT.jar:na] at org.springframework.beans.factory.config.AbstractFactoryBean.afterPropertiesSet(AbstractFactoryBean.java:134)~ [spring-beans-5.0.0.BUILD- SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1654)〜[spring-be ans-5.0.0.BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1591)〜[spring-beans-5.0.0 .BUILD-SNAPSHOT.jar:5.0.0.BUILD-SNAPSHOT] ...省略了16个常用帧

使用以下代码

@SpringBootApplication
@RestController
public class QuickPollApplication {

    public static void main(String[] args) {
        SpringApplication.run(QuickPollApplication.class, args);
    }

    @RequestMapping(value = "/test", method = RequestMethod.GET)
    public String testRest() {
        return "rest tested";
    }

以下是我的pom.xml

UTF-8 UTF-8 1.8

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency> …