QueryWrapper查询方式案例

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 in参考下面红色标注字段，其他查询参考下面

public List<String> getNextNewsIdList(NewsSearchVo searchVo) throws ParseException {
    QueryWrapper<TbmNewsProcessing> qw = new QueryWrapper<>();

if (searchVo.getCreateDate() != null) {
    qw.ge("create_time", searchVo.getCreateDate());
}
if (searchVo.getCreateDateEnd() != null) {
    qw.le("create_time", DateUtil.parse(searchVo.getCreateDateEnd()).plusSeconds(24 * 60 * 60 - 1));
}
if (StringUtils.isNotBlank(searchVo.getNewsType()) && searchVo.getNewsType().contains(",")) {
    //此处最好是List入参，in才更为精准
    List<String>  newsTypes=Arrays.asList(searchVo.getNewsType().split(","));
    qw.in("news_type", newsTypes);
} else if (StringUtils.isNotBlank(searchVo.getNewsType()) && !searchVo.getNewsType().contains(",")) {
    qw.eq("news_type", searchVo.getNewsType());
}
if (StringUtils.isNotBlank(searchVo.getMediaSource())) {
    qw.eq("media_source_code", searchVo.getMediaSource());
}
if (StringUtils.isNotBlank(searchVo.getAuthor())) {
    qw.eq("author", searchVo.getAuthor());
}
if (CollectionUtils.isNotEmpty(searchVo.getTagIds()) && searchVo.getTagIds().size() == 2) {
    if (StringUtils.isNotBlank(searchVo.getTagIds().get(0)) || StringUtils.isNotBlank(searchVo.getTagIds().get(1))) {
        
        qw.inSql("news_id", "SELECT DISTINCT(news_id) FROM tbm_news_tags WHERE register_tag_id in (" + registerTagIds + ")");
    }
}
if (searchVo.getAreaCode() != null) {
    qw.inSql("news_id", "SELECT DISTINCT(news_id) FROM tbm_news_area_tags WHERE business_id = " + searchVo.getAreaCode());
}

if (searchVo.getAppIds() != null) {
    if (searchVo.getAppIds().equals("2")) {
        qw.orderByDesc("priority");
    } else if (searchVo.getAppIds().equals("3")) {
        qw.orderByDesc("xf_priority");
    } else if (searchVo.getAppIds().equals("5")) {
        qw.orderByDesc("yq_priority");
    } else if (searchVo.getAppIds().equals("6")) {
        qw.orderByDesc("jyp_priority");
    }
}
qw.orderByDesc("create_time")
        .eq("handle_status", 0)
        .notInSql("news_id", "select news_id from tbm_discard_task where discard_user_id=" + searchVo.getSessionUserId())
        .last("limit  100");
qw.select("    news_id    ");
List<TbmNewsProcessing> newsIdObjectList = processingMapper.selectList(qw);

 public List<String> getNextNewsIdList(NewsSearchVo searchVo) throws ParseException {
        QueryWrapper<TbmNewsProcessing> qw = new QueryWrapper<>();
        if (StringUtils.isNotBlank(searchVo.getNewsId())) {
            qw.like("news_id", SqlUtil.escapeLike(searchVo.getNewsId().trim()));
        }
        if (StringUtils.isNotBlank(searchVo.getAppIds())) {
            qw.like("app_ids", searchVo.getAppIds());
        }
        if (StringUtils.isNotBlank(searchVo.getTitle())) {
            qw.like("title", SqlUtil.escapeLike(searchVo.getTitle().trim()));
        }
        if (StringUtils.isNotBlank(searchVo.getDsNewsColumns())) {
            qw.eq("ds_news_columns", SqlUtil.escapeLike(searchVo.getDsNewsColumns().trim()));
        }
        if (searchVo.getUpdateTime() != null) {
            qw.ge("update_time", searchVo.getUpdateTime());
        }
        if (searchVo.getUpdateTimeEnd() != null) {
            qw.le("update_time", DateUtil.parse(searchVo.getUpdateTimeEnd()).plusSeconds(24 * 60 * 60 - 1));
        }
        if (searchVo.getCreateDate() != null) {
            qw.ge("create_time", searchVo.getCreateDate());
        }
        if (searchVo.getCreateDateEnd() != null) {
            qw.le("create_time", DateUtil.parse(searchVo.getCreateDateEnd()).plusSeconds(24 * 60 * 60 - 1));
        }
        if (searchVo.getPublishDate() != null) {
            qw.ge("src_publish_date", searchVo.getPublishDate());
        }
        if (searchVo.getPublishDateEnd() != null) {
            qw.le("src_publish_date", DateUtil.parse(searchVo.getPublishDateEnd()).plusSeconds(24 * 60 * 60 - 1));
        }
        if (searchVo.getPublishStatus() != null) {
            qw.eq("publish_status", searchVo.getPublishStatus());
        }
        if (searchVo.getDsSourceType() != null) {
            qw.eq("ds_source_type", searchVo.getDsSourceType());
        }
        if (searchVo.getLevel() != null) {
            qw.eq("level", searchVo.getLevel());
        }
        if (StringUtils.isNotBlank(searchVo.getNewsUrl())) {
            qw.like("news_url", SqlUtil.escapeLike(searchVo.getNewsUrl().trim()));
        }
        if (StringUtils.isNotBlank(searchVo.getAuthorOrgCode())) {
            qw.eq("author_org_code", searchVo.getAuthorOrgCode());
        }
        if (searchVo.getRange() != null) {
            qw.eq("range_base", searchVo.getRange());
        }
        if (searchVo.getRangePlus() != null) {
            qw.eq("range_plus", searchVo.getRangePlus());
        }
        if (searchVo.getFinancial() != null) {
            qw.eq("financial", searchVo.getFinancial());
        }
        if (searchVo.getFinancialPlus() != null) {
            qw.eq("financial_plus", searchVo.getFinancialPlus());
        }
        if (StringUtils.isNotBlank(searchVo.getNewsType()) && searchVo.getNewsType().contains(",")) {
            List<String>  newsTypes=Arrays.asList(searchVo.getNewsType().split(","));
            qw.in("news_type", newsTypes);
        } else if (StringUtils.isNotBlank(searchVo.getNewsType()) && !searchVo.getNewsType().contains(",")) {
            qw.eq("news_type", searchVo.getNewsType());
        }
        if (StringUtils.isNotBlank(searchVo.getMediaSource())) {
            qw.eq("media_source_code", searchVo.getMediaSource());
        }
        if (StringUtils.isNotBlank(searchVo.getAuthor())) {
            qw.eq("author", searchVo.getAuthor());
        }
        if (CollectionUtils.isNotEmpty(searchVo.getTagIds()) && searchVo.getTagIds().size() == 2) {
            if (StringUtils.isNotBlank(searchVo.getTagIds().get(0)) || StringUtils.isNotBlank(searchVo.getTagIds().get(1))) {
                String registerTagIds = "";
                if (StringUtils.isNotBlank(searchVo.getTagIds().get(0))) {
                    registerTagIds = registerTagIds + "\"" + searchVo.getTagIds().get(0) + "\"";
                }
                if (StringUtils.isNotBlank(searchVo.getTagIds().get(0)) && StringUtils.isNotBlank(searchVo.getTagIds().get(1))) {
                    registerTagIds = registerTagIds + ",";
                }
                if (StringUtils.isNotBlank(searchVo.getTagIds().get(1))) {
                    registerTagIds = registerTagIds + "\"" + searchVo.getTagIds().get(1) + "\"";
                }
                qw.inSql("news_id", "SELECT DISTINCT(news_id) FROM tbm_news_tags WHERE register_tag_id in (" + registerTagIds + ")");
            }
        }
        if (searchVo.getAreaCode() != null) {
            qw.inSql("news_id", "SELECT DISTINCT(news_id) FROM tbm_news_area_tags WHERE business_id = " + searchVo.getAreaCode());
        }


        if (searchVo.getAppIds() != null) {
            if (searchVo.getAppIds().equals("2")) {
                qw.orderByDesc("priority");
            } else if (searchVo.getAppIds().equals("3")) {
                qw.orderByDesc("xf_priority");
            } else if (searchVo.getAppIds().equals("5")) {
                qw.orderByDesc("yq_priority");
            } else if (searchVo.getAppIds().equals("6")) {
                qw.orderByDesc("jyp_priority");
            }
        }
        qw.orderByDesc("create_time")
                .eq("handle_status", 0)
                .notInSql("news_id", "select news_id from tbm_discard_task where discard_user_id=" + searchVo.getSessionUserId())
                .last("limit  100");
        qw.select("    news_id    ");
        List<TbmNewsProcessing> newsIdObjectList = processingMapper.selectList(qw);

        List<String> newsIdList = new ArrayList<String>();
        if (newsIdObjectList != null && !newsIdObjectList.isEmpty()) {
            newsIdObjectList.forEach(item -> {
                newsIdList.add(String.valueOf(item.getNewsId()));
            });
        }
        return newsIdList;
    }

标签：QueryWrapper,isNotBlank,qw,searchVo,几种,id,news,查询,StringUtils
来源： https://blog.csdn.net/u011488009/article/details/112361678