如何使用图形api从提要中获取大图? [英] How to get the large picture from feed with graph api?

问题描述

从一个页面加载 Facebook 提要时，如果提要中存在图片，我想显示大图.

When loading the Facebook feeds from one page, if a picture exist in the feed, I want to display the large picture.

如何使用 graph API ?提要中的图片链接不是大的.

How can I get with the graph API ? The picture link in the feed is not the large one.

谢谢.

推荐答案

这是一种获取大图像的新方法.它是在预览方法不起作用之后诞生的

This is a new method to get a big image. it was born after the previews method doesn't works

     /**
     * return a big url of facebook
     * works onky for type PHOTO
     * @param picture 
     * @param is a post type link
     * @return url of image
     */
    @Transactional
    public String getBigImageByFacebookPicture(String pictrue,Boolean link){
        if(link && pictrue.contains("url=http")){
            String url = pictrue.substring(pictrue.indexOf("url=") + 4);
            try {
                url = java.net.URLDecoder.decode(url, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                StringBuffer sb = new StringBuffer("Big image for Facebook link not found: ");
                sb.append(link);
                loggerTakePost.error(sb.toString());
                return null;
            }
            return url;
        }else{
            try {
                Document doc = Jsoup.connect(pictrue).get();
                return doc.select("#fbPhotoImage").get(0).attr("src");
            } catch (Exception e) {
                StringBuffer sb = new StringBuffer("Big image for Facebook link not found: ");
                sb.append(link);
                loggerTakePost.error(sb.toString());
                return null;
            }
        }
    }

欣赏您的大图 :)

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