/// <summary>
/// 设置客服账号的头像。
/// </summary>
/// <param name="account">完整客服账号，格式为：账号前缀@公众号微信号</param>
/// <param name="pictureData">客服人员的头像，头像图片文件必须是jpg格式，推荐使用640*640大小的图片以达到最佳效果</param>
public void SetAccountHeadPicture(string account, byte[] pictureData)
{
if (!FileHelper.IsJpg(pictureData))
throw new NotSupportedException("头像图片文件必须是jpg格式。");
var url = string.Format("http://api.weixin.qq.com/customservice/kfaccount/uploadheadimg?access_token={0}&kf_account={1}", _accountModel.GetAccessToken(), account);
var createBytes = new CreateBytes();
var list = new ArrayList
{
createBytes.CreateFieldData("media", FileHelper.GetRandomFileName(pictureData), FileHelper.GetContentType(pictureData), pictureData),
};
var data = createBytes.JoinBytes(list);
WeiXinHttpHelper.Post(url, data, createBytes.ContentType);
}
/// <summary>
/// 上传图片。
/// </summary>
/// <param name="data">图片数据（大小限制1MB，支持JPG格式）。</param>
/// <returns>如果上传成功则返回图片的绝对url地址。</returns>
public string UploadImage(byte[] data)
{
var url = "http://file.api.weixin.qq.com/cgi-bin/media/uploadimg?access_token=" + _accountModel.GetAccessToken();
var createBytes = new CreateBytes();
var postData = createBytes.JoinBytes(new ArrayList
{
createBytes.CreateFieldData("buffer", FileHelper.GetRandomFileName(data), "image/jpeg", data)
});
var json = WeiXinHttpHelper.PostString(url, postData, createBytes.ContentType);
return JObject.Parse(json)["url"].Value<string>();
}