英文:
Cannot import javax.persistence.MapsId
问题
使用 Spring Data JPA，我想在一个实体的代码中使用 @MapsId 注解。
尽管我在实体中添加了 import javax.persistence.*;，
但我遇到了以下编译错误：
找不到符号[ERROR] 符号: 方法 name()[ERROR] 位置: @interface javax.persistence.MapsId
我的 pom.xml 文件如下：
<?xml version="1.0" encoding="UTF-8"?><projectxmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"...<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jpa</artifactId><version>2.3.4.RELEASE</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.3.4.RELEASE</version></dependency><dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><version>9.4.1210</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><version>2.3.4.RELEASE</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>
英文:
I use Spring Data JPA and I would like to use the @MapsId annotation in the code of one of my entities
Although I put import javax.persistence.*; in my entity
I have the following compilation error :
cannot find symbol[ERROR] symbol: method name()[ERROR] location: @interface javax.persistence.MapsId
My pom.xml is
<?xml version="1.0" encoding="UTF-8"?><projectxmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"...<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-jpa</artifactId><version>2.3.4.RELEASE</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.3.4.RELEASE</version></dependency><dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><version>9.4.1210</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><version>2.3.4.RELEASE</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>
答案1
得分: 1
你正在使用 @MapsId(name = "something")，但在 @MapsId 上不存在 name。
请改用 value：@MapsId(value = "something")，或者简单地使用 @MapsId("something")。
英文:
You are using @MapsId(name = "something"), but name doesn't exist on @MapsId.
Use value instead: @MapsId(value = "something"), or simply @MapsId("something")
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