java - Spring Boot + SPring REST + Swagger + JPA + 内存中 H2 DB

Question

我正在使用 Spring Boot 开发 Spring REST。我首先将值硬编码到 DAOService ，如下所示，一切正常

@Component
public class UserDAOService {

    static List<User> users = new ArrayList<>();
    static int userCount = 3;

    static {
        users.add(new User("adam", new Date(), 1));
        users.add(new User("eve", new Date(), 2));
        users.add(new User("joe", new Date(), 3));
    }

    public User saveUser(User user) {
        if (user.getId() == null) {
            user.setId(++userCount);
        }
        users.add(user);
        return user;
    }

    public List<User> findAll() {
        System.out.println("finding all users");
        return users;
    }

    public User findOne(int id) {

        for (User user : users) {
            if (user.getId() == id) {
                return user;
            }
        }
        return null;
    }

但后来我尝试集成 JPA 并将 bean 转换为实体，如下所示，起初我在创建名为“documentationpluginsbootstrapper”的 bean 时出错，但通过从 SwaggerConfig 类中删除 @Configuration 注释解决了这个问题。但后来又出现了另一个异常创建名为“repositorySearchController”的 bean 时出错 ..日志显示在末尾

    @ApiModel(description="all details about user")
    @Entity
    public class User {

        @Id
        @GeneratedValue
        private Integer id ;

        @Size(min=2,max=12,message="username should be atleast 2 characters")
        private String name;
        @Past
        private Date birthDate; 

        public User(String name, Date birthDate, Integer id) {
            super();
            this.name = name;
            this.birthDate = birthDate;
            this.id = id;
        }
        public User() {
            // TODO Auto-generated constructor stub
        } 
//setters and getters    
    }

日志:

org.springframework.beans.factory.UnsatisfiedDependencyException:创建名称为“repositorySearchController”的bean时出错...... spring-data-rest-webmvc-3.0.8.RELEASE.jar

需要输入来解决此问题。

Answer 1

要连接到H2数据库，您应该将以下属性添加到application.properties文件中:

spring.h2.console.enabled=true
spring.h2.console.path=/h2-console

spring.datasource.url=jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.platform=h2
spring.datasource.initialize=true
spring.datasource.continue-on-error=true

您可以通过以下 URL 访问 BD:http://localhost:8080/h2-console/