為什么我yml文件連接數據庫這里會報紅

為什么我不能用@Entity

下面是我的代碼

<?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>

? <groupId>com.imooc</groupId>
? <artifactId>rainbow</artifactId>
? <version>0.0.1-SNAPSHOT</version>
? <packaging>jar</packaging>

? <name>rainbow</name>
? <description>Demo project for Spring Boot</description>

? <parent>
? ? ?<groupId>org.springframework.boot</groupId>
? ? ?<artifactId>spring-boot-starter-parent</artifactId>
? ? ?<version>1.5.6.RELEASE</version>
? ? ?<relativePath/> <!-- lookup parent from repository -->
? </parent>

? <properties>
? ? ?<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
? ? ?<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
? ? ?<java.version>1.8</java.version>
? </properties>

? <dependencies>
? ? ?<dependency>
? ? ? ? <groupId>org.springframework.boot</groupId>
? ? ? ? <artifactId>spring-boot-starter-web</artifactId>
? ? ?</dependency>

? ? ?<dependency>
? ? ? ? <groupId>org.springframework.boot</groupId>
? ? ? ? <artifactId>spring-boot-starter-test</artifactId>
? ? ? ? <scope>test</scope>
? ? ?</dependency>

? ? ?<dependency>
? ? ? ? <groupId>org.springframework.boot</groupId>
? ? ? ? <artifactId>spring-boot-starter-data-jpa</artifactId>
? ? ?</dependency>

? ? ?<dependency>
? ? ? ? <groupId>mysql</groupId>
? ? ? ? <artifactId>mysql-connector-java</artifactId>
? ? ?</dependency>

? </dependencies>

? <build>
? ? ?<plugins>
? ? ? ? <plugin>
? ? ? ? ? ?<groupId>org.springframework.boot</groupId>
? ? ? ? ? ?<artifactId>spring-boot-maven-plugin</artifactId>
? ? ? ? </plugin>
? ? ?</plugins>
? </build>


</project>

server:
?port: 8080
girl:
?name: miaomiao
?age: 18
spring:
?datasource:
? ?driver-class-name: com.mysql.jdbc.Driver
? ?url: jdbc:mysql://127.0.0.1:3306/springboot1
? ?username: root
? ?password:
?jpa:
? ?hibernate:
? ? ?ddl-auto: create
? ?show-sql: true