我像你一样创建了一个项目。结构看起来像这样
这些类只是复制自你的类。
我将application.properties更改为：
spring.datasource.url=jdbc:mysql://localhost/testprojectspring.datasource.username=rootspring.datasource.password=rootspring.datasource.driverClassName=com.mysql.jdbc.Driverspring.jpa.hibernate.ddl-auto=update
但我认为你的问题出在你的pom.xml中：
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.1.RELEASE</version></parent><artifactId>spring-boot-sample-jpa</artifactId><name>Spring Boot JPA Sample</name><description>Spring Boot JPA Sample</description><dependencies> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency></dependencies><build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins></build>
检查这些文件是否有差异。希望这可以帮助
