自定义注解使用案例，

 后续会加上详细注释，或者出一个贴图详细的2.0版本，大家不要错过！我会详细教大家如何使用自定义注解开发！让你的代码瞬间高大上起来

@Data
public class ReportDateDTO {

    /**
     * 年
     */
    @ApiModelProperty(value = "年", notes = "")
    @ReportFiled(value = "year", description = "date", font = FONT_MS_YH, fontsize = 13.5f)
    private String year;

    /**
     * 月
     */
    @ApiModelProperty(value = "月", notes = "")
    @ReportFiled(value = "month", description = "date", font = FONT_MS_YH, fontsize = 13.5f)
    private String month;

    /**
     * 日
     */
    @ApiModelProperty(value = "日", notes = "")
    @ReportFiled(value = "day", description = "date", font = FONT_MS_YH, fontsize = 13.5f)
    private String day;

    @ReportList("report_")
    private List forecastDataDTOList;
}

 

/**
 * @author：Ttc
 * @date 2024/1/22  14:36
 * @description: 导出大屏预报数据VO
 */
@Data
public class ForecastDataDTO {
    /**
     * 日期
     */
    @ApiModelProperty(value = "日期", notes = "")
    @ReportFiled(value = "date")
    private String formattedDate;
    /**
     * 天气
     */
    @ApiModelProperty(value = "天气", notes = "")
    @ReportFiled(value = "weather")
    private String weaDay;
    /**
     * 大屏显示风力等级
     */
    @ApiModelProperty(value = "大屏显示风力等级", notes = "")
    @ReportFiled(value = "wind")
    private String largeScreenWind;
    /**
     * 最高温度
     */
    @ApiModelProperty(value = "最高温度", notes = "")
    @ReportFiled(value = "tem_max")
    private String tem1;

    /**
     * 最低温度
     */
    @ApiModelProperty(value = "最低温度", notes = "")
    @ReportFiled(value = "tem_min")
    private String tem2;
}

 

 

/**
 * @author：Ttc
 * @date 2024/1/18  17:54
 * @description: 报告字段
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface ReportFiled {
    String value() default "";

    float fontsize() default 12.0f;

    /**
     * 字体路径
     * 如果为空，使用默认字体
     * @return
     */
    String font() default "";
    String prefix() default "";
    String description() default "";
}

 

/**
 * @author：Ttc
 * @date 2024/1/23  14:48
 * @description: pdf
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface ReportList {
    /**
     * 报表集合名称
     * 作为其中元素的前缀
     * @return
     */
    String value() default "";
}

public Map getParamMap(Object param, String prefix, int index) {
    Map map = new HashMap<>(16);
    if (param == null) {
        return map;
    }
    Field[] fields = param.getClass().getDeclaredFields();
    for (Field field : fields) {
        Object formVal = ReflectUtil.getFieldValue(param, field.getName());
        ReportFiled reportFiled = field.getAnnotation(ReportFiled.class);
        if (reportFiled != null) {
            fillParamMapByReportFiled(map, formVal, reportFiled, prefix, index);
        }
        ReportList reportList = field.getAnnotation(ReportList.class);
        if (reportList != null) {
            String formKeyPrefix = reportList.value();
            if (formVal instanceof List) {
                List