Hibernate不使用spring引导从mysql表返回数据

Question

我在我的MySQL数据库中有一个表，我试图在我的spring控制器类中使用Hibernate访问它。MySQL数据库中的表名是AdminTable。(我的数据库中还有另一张表)。

我不会从我的数据库里取回数据。我做错了什么？

MainController.java

@RestController
@CrossOrigin
public class MainController {
    @Autowired
    @Qualifier(value = "adminService")
    private AdminService adminService;

    @RequestMapping(method = RequestMethod.POST, value = "/admin_login")
    public String loginAdmin(@RequestBody LoginInformation loginInformation) {
        System.out.println(loginInformation.getUsername() + " " + loginInformation.getPassword());
        String adminFound = "false";
        Iterable<Admin> admins = adminService.findAll();
        for (Admin admin : admins) {
            if (admin.getUsername().equals(loginInformation.getUsername()) &&
                    admin.getPassword().equals(loginInformation.getPassword())) {
                adminFound = "true";
                break;
            }
        }
        return adminFound;
    }
}

application.properties

spring.jpa.hibernate.ddl-auto=create
spring.datasource.url=jdbc:mysql://localhost:3306/payment_system
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=myPass

AdminService.java

public interface AdminService extends CrudRepository<Admin, Long> {}

findAll方法不返回任何数据。请给我建议。

Answer 1

您必须将hibernate属性配置为application.properties文件。您可以按照以下代码:-

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/concretepage
spring.datasource.username=root
spring.datasource.password=
spring.datasource.tomcat.max-wait=20000
spring.datasource.tomcat.max-active=50
spring.datasource.tomcat.max-idle=20
spring.datasource.tomcat.min-idle=15

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQLDialect
spring.jpa.properties.hibernate.id.new_generator_mappings = false
spring.jpa.properties.hibernate.format_sql = true

logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE