4.5)图文相关API

包括如下接口：

• addNewsMedia - 新增图文
• updateNewsInfo - 修改图文

1. addNewsMedia 添加图文

        WxNewsInfo news1 = new WxNewsInfo();
        news1.setTitle("标题1");
        news1.setThumb_media_id("图片media_id");
        news1.setContent("xxx");
        //....设置图文内容
        WxNewsInfo news2 = new WxNewsInfo();
        news2.setTitle("标题1");
        news2.setThumb_media_id("图片media_id");
        news2.setContent("xxx");

        List<WxNewsInfo> newsList = new ArrayList<>();
        newsList.add(news1);
        newsList.add(news2);

        try {
            String mediaId = iService.addNewsMedia(newsList);
        } catch (WxErrorException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

2. updateNewsInfo 修改图文内容

        WxNewsInfo news1 = new WxNewsInfo();
        news1.setTitle("标题1");
        news1.setThumb_media_id("图片media_id");
        news1.setContent("xxx");
        try {
            //参数1：media_id；参数2：图文位置下标。从0开始；参数3：新的图文对象
            WxError result = iService.updateNewsInfo("media_id", 0, news1);
        } catch (WxErrorException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }