需求

1.本地网页发布文章的时候需要同步给对应的服务号推送文章。

2.图片可以在富文本编辑器里面上传到微信服务器获得临时文件发送。也可以从网页上复制过来的图片链接直接点击推送也需要推送给微信服务号，本文是本地富文本的图片资源全部先传到本地服务器显示，给微信推送的时候再把文章内的图片链接下载到本地传到微信服务器获得临时文件media_id再发送出去。

代码

1.服务号文章推送接口实现类

@Service
public class WxArticleSendTestServiceImpl  {
    private Logger logger = LoggerFactory.getLogger(WxArticleSendTestServiceImpl.class);
    @Autowired
    private RestTemplate restTemplate;

    /***
    * @Description: 服务号文章推送主方法，需改成面向接口编程
    * @Param: [mesDataDT]
    * @return: cn.thinkjoy.springboot.wxcenter.dto.wechat.MassSendResultDTO
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public MassSendResultDTO sendMsg(MesDataDTO mesDataDT) throws WxErrorException {
        //获取appid 可以直接当参数传递 
         String appId =mesDataDT.getAppId();
        //获取首页图片MediaId和替换文章内url
        ArticlesDataDTO articlesDataDTO = newCentent(appId, mesDataDT.getArticlesData());
        //上传图文消息素材
        MassUploadResultDTO massUploadResultDTO = uploadNews(appId, articlesDataDTO);
        String mediaId = massUploadResultDTO.getMedia_id();
        //消息协议体
        MassTagMessageDTO massTagMessageDTO = massTagInfo(mediaId);
        //发送消息
        MassSendResultDTO massSendResultDTO = sendAll(appId, massTagMessageDTO);
        return massSendResultDTO;
    }
    /***
    * @Description: 上传资源获取临时文件
    * @Param: [appId, file]
    * @return: me.chanjar.weixin.common.bean.result.WxMediaUploadResult
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public WxMediaUploadResult mediaUpload(String appId, File file) throws WxErrorException {
        //封面图片
        WxMediaUploadResult wxMediaUploadResult = WxMpConfiguration.getMpServices().get(appId).getMaterialService().mediaUpload(WxConsts.MassMsgType.IMAGE, file);
        String wxMediaUploadResultstr = JSONObject.toJSONString(wxMediaUploadResult);
        logger.info("首页图片返回mediaId：" + wxMediaUploadResultstr);
        return wxMediaUploadResult;
    }

    /***
    * @Description: 返回微信临时文件消息体的图片内容的url
    * @Param: [appId, file]
    * @return: me.chanjar.weixin.mp.bean.material.WxMediaImgUploadResult
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public WxMediaImgUploadResult mediaImgUpload(String appId, File file) throws WxErrorException {
        //图文内容返回的url
        WxMediaImgUploadResult wxMediaImgUploadResult = WxMpConfiguration.getMpServices().get(appId).getMaterialService().mediaImgUpload(file);
        String wxMediaImgUploadResultstr = JSONObject.toJSONString(wxMediaImgUploadResult);
        logger.info("文章内图片图片返回参数：" + wxMediaImgUploadResultstr);
        return wxMediaImgUploadResult;
    }
    /***
    * @Description: 上传临时素材
    * @Param: [appId, articlesDataDTO]
    * @return: cn.thinkjoy.springboot.wxcenter.dto.wechat.MassUploadResultDTO
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public MassUploadResultDTO uploadNews(String appId, ArticlesDataDTO articlesDataDTO) throws WxErrorException {
        //上传图文消息素材
        String uploadResult = WxMpConfiguration.getMpServices().get(appId).post("https://api.weixin.qq.com/cgi-bin/media/uploadnews", JSONObject.toJSONString(articlesDataDTO));
        logger.info("图文素材：" + uploadResult);
        return JSONObject.parseObject(uploadResult, MassUploadResultDTO.class);
    }

    public MassSendResultDTO sendAll(String appId, MassTagMessageDTO massTagMessageDTO) throws WxErrorException {
        String responseContent = WxMpConfiguration.getMpServices().get(appId).post("https://api.weixin.qq.com/cgi-bin/message/mass/sendall", JSONObject.toJSONString(massTagMessageDTO));
        logger.info("发送消息：" + responseContent);
        return JSONObject.parseObject(responseContent, MassSendResultDTO.class);
    }
    /***
    * @Description: 发送内
    * @Param: [mediaId]
    * @return: cn.thinkjoy.springboot.wxcenter.dto.wechat.MassTagMessageDTO
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public MassTagMessageDTO massTagInfo(String mediaId) {
        //最终发消息实体
        MassTagMessageDTO massTagMessageDTO = new MassTagMessageDTO();
        FilterDTO filterDTO = new FilterDTO();
        MpnewsDTO mpnewsDTO = new MpnewsDTO();
        filterDTO.setIs_to_all(true);
        mpnewsDTO.setMedia_id(mediaId);
        massTagMessageDTO.setFilter(filterDTO);
        massTagMessageDTO.setMpnews(mpnewsDTO);
        massTagMessageDTO.setMsgtype("mpnews");
        //转载的不能群发有广告
        massTagMessageDTO.setSend_ignore_reprint(0);
        return massTagMessageDTO;
    }
    /***
    * @Description: 替换文章的链接
    * @Param: [appId, articlesDataDTO]
    * @return: cn.thinkjoy.springboot.wxcenter.dto.wechat.ArticlesDataDTO
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public ArticlesDataDTO newCentent(String appId, ArticlesDataDTO articlesDataDTO) throws WxErrorException {

        WxMediaUploadResult wxMediaUploadResult = null;
        List<ArticlesDTO> articlesDTOList = articlesDataDTO.getArticles();
        if (articlesDTOList == null || articlesDTOList.size() == 0) {
            logger.info("发送协议为空");
            return null;
        }
        //文章内容
        String content = "";
        //文章内图片url集合
        String[] imgurl = null;
        //封面图片url
        String coverImg = "";
        for (ArticlesDTO articlesDTO : articlesDTOList) {
            //获取首页图片MediaId
            coverImg = articlesDTO.getImage();
            //下载图片
            File coverFile = downLoad(coverImg, appId);
            //上传获取临时文件
            wxMediaUploadResult = mediaUpload(appId, coverFile);
            articlesDTO.setThumb_media_id(wxMediaUploadResult.getMediaId());
            coverFile.delete(); //删除首页图片文件

            //1.替换文章内img图片url
            content = articlesDTO.getContent();
            imgurl = StringUtils.substringsBetween(content, "src=\"", "\"");
            content = getContent(imgurl, appId, content);

            //2.替换背景图片不带双引号
            imgurl = StringUtils.substringsBetween(content, "url(", ")");
            content = getContent(imgurl, appId, content);

            //3.替换背景图片带双引号
            imgurl = StringUtils.substringsBetween(content, "url(\"", "\")");
            //获取新的内容
            content = getContent(imgurl, appId, content);

            logger.info("替换的内容：" + content);
            articlesDTO.setContent(content);

        }
        articlesDataDTO.setArticles(articlesDTOList);
        return articlesDataDTO;
    }

    /***
    * @Description: 下载资源
    * @Param: [imgUrl, appId]
    * @return: java.io.File
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public File downLoad(String imgUrl, String appId) {
        ResponseEntity<byte[]> responseEntity = restTemplate.getForEntity(imgUrl, byte[].class);
        File file = null;
        try {
            //本地临时文件存放图片
            file = File.createTempFile(appId, "." + responseEntity.getHeaders().getContentType().getSubtype());
            file.createNewFile();
            FileOutputStream fos = new FileOutputStream(file);
            fos.write(responseEntity.getBody());
            fos.flush();
            fos.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
        }
        return file;
    }


    /***
    * @Description: 替换新的内容
    * @Param: [imgurl, appId, content]
    * @return: java.lang.String
    * @Author: leichunhong
    * @Date: 2021-03-05
    */
    public String getContent(String[] imgurl, String appId, String content) throws WxErrorException {
        WxMediaImgUploadResult wxMediaImgUploadResult = null;
        if (imgurl != null && imgurl.length > 0) {
            for (String imgurlDTO : imgurl) {
                File file = downLoad(imgurlDTO, appId);
                wxMediaImgUploadResult = mediaImgUpload(appId, file);
                String newImgUrl = wxMediaImgUploadResult.getUrl();
                content = content.replaceAll(imgurlDTO, newImgUrl);
                file.delete();
            }
        }
        return content;
    }

说明：MesDataDTO为推送文章消息体，调用接口直接调用sendMsg()方法实现推送。

微信消息实体

public class MesDataDTO {
    
    private String appId;
    private ArticlesDataDTO ArticlesData;
    public ArticlesDataDTO getArticlesData() {
        return ArticlesData;
    }

    public void setArticlesData(ArticlesDataDTO articlesData) {
        ArticlesData = articlesData;
    }

    public String getAppId() {
        return appId;
    }

    public void setAppId(String appId) {
        this.appId = appId;
    }
}

多条消息封装实体

public class ArticlesDataDTO {
    private List<ArticlesDTO> articles;

    public List<ArticlesDTO> getArticles() {
        return articles;
    }

    public void setArticles(List<ArticlesDTO> articles) {
        this.articles = articles;
    }
}

发送消息消息体 和微信开发者文档一致

public class ArticlesDTO {
    /**
     * thumb_media_id : qI6_Ze_6PtV7svjolgs-rN6stStuHIjs9_DidOHaj0Q-mwvBelOXCFZiq2OsIU-p
     * author : xxx
     * title : Happy Day
     * content_source_url : www.qq.com
     * content : content
     * digest : digest
     * show_cover_pic : 1
     * need_open_comment : 1
     * only_fans_can_comment : 1
     */

    private String thumb_media_id;
    private String author;
    private String title;
    private String content_source_url;
    private String content;
    private String digest;
    private Integer show_cover_pic;
    private Integer need_open_comment;
    private Integer only_fans_can_comment;
    private String image;

    public String getImage() {
        return image;
    }

    public void setImage(String image) {
        this.image = image;
    }

    public String getThumb_media_id() {
        return thumb_media_id;
    }

    public void setThumb_media_id(String thumb_media_id) {
        this.thumb_media_id = thumb_media_id;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getContent_source_url() {
        return content_source_url;
    }

    public void setContent_source_url(String content_source_url) {
        this.content_source_url = content_source_url;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getDigest() {
        return digest;
    }

    public void setDigest(String digest) {
        this.digest = digest;
    }

    public Integer getShow_cover_pic() {
        return show_cover_pic;
    }

    public void setShow_cover_pic(Integer show_cover_pic) {
        this.show_cover_pic = show_cover_pic;
    }

    public Integer getNeed_open_comment() {
        return need_open_comment;
    }

    public void setNeed_open_comment(Integer need_open_comment) {
        this.need_open_comment = need_open_comment;
    }

    public Integer getOnly_fans_can_comment() {
        return only_fans_can_comment;
    }

    public void setOnly_fans_can_comment(Integer only_fans_can_comment) {
        this.only_fans_can_comment = only_fans_can_comment;
    }
}

结果展示

本地编辑器

微信服务号