springboot jpa注解自动生成修改表，添加索引、字段注释、字段长度、引擎等

用jpa自动生成表，只用@Entity、@Table这两个注解生成的表：引擎是MyISAM、字段长度全是默认最大、字段没注释、没有添加索引

• 先设置InnoDB引擎：走起

• 生成表注解，并制定唯一索引（索引名、字段、类型）：

  @Entity
  @Table(name = "pmi_t_user_version",
         indexes = {@Index(name = "my_index_name",  columnList="user_id", unique = true)}
     )
  

• 添加表名注释：

   @org.hibernate.annotations.Table(appliesTo = "pmi_t_user_version",comment="用户登录版本信息")
  

• 制定字段类型、长度、注释

    @ApiModelProperty(value = "用户id", required = true)
    @NotBlank(message = "用户id不能为空")
    @Column(name = "user_id", nullable = false,columnDefinition="int(11) COMMENT '用户id'")
    private long userId;
  

• 完整代码：

   @Entity
    @Table(name = "pmi_t_user_version",
            indexes = {@Index(name = "my_index_name",  columnList="user_id", unique = true)}
        )
    @org.hibernate.annotations.Table(appliesTo = "pmi_t_user_version",comment="用户登录版本信息")
    @Component
    @ApiModel(value = "用户")
    public class UserVersion implements Serializable {
    
        /**
         * 主键id
         */
        @ApiModelProperty(value = "主键id")
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        private long id;
        /**
         * 用户id
         */
    
        @ApiModelProperty(value = "用户id", required = true)
        @NotBlank(message = "用户id不能为空")
        @Column(name = "user_id", nullable = false,columnDefinition="int(11) COMMENT '用户id'")
        private long userId;
    
    
    
    
        /**
         * 版本号
         */
        @ApiModelProperty(value = "版本号", required = true)
        @NotBlank(message = "版本号不能为空")
        @Column(name = "version_no", nullable = false,columnDefinition="varchar(1) COMMENT '版本号'")
        private int versionNo;
        /**
         * 客户端类型
         */
        @ApiModelProperty(value = "客户端类型", required = true)
        @NotBlank(message = "客户端类型不能为空")
        @Column(name = "client_type", nullable = false,columnDefinition="varchar(1) COMMENT '客户端类型'")
        private int clientType;
    
        public long getId() {
            return id;
        }
    
        public void setId(long id) {
            this.id = id;
        }
    
        public long getUserId() {
            return userId;
        }
    
        public void setUserId(long userId) {
            this.userId = userId;
        }
    
        public int getVersionNo() {
            return versionNo;
        }
    
        public void setVersionNo(int versionNo) {
            this.versionNo = versionNo;
        }
    
        public int getClientType() {
            return clientType;
        }
    
        public void setClientType(int clientType) {
            this.clientType = clientType;
        }
    }
  
  

• 表截图：
  

• 只有@Entity、@Table这里注解时，没有相应注解前截图