解决Long丢失精度问题

    /**
     * 使用注解@JsonSerialize(using= ToStringSerializer.class)
     * 对应的包import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
     */
    @JsonSerialize(using= ToStringSerializer.class)
    @ApiModelProperty(value = "主键id")
    private Long id;