[原创]ASP.NET MVC调用美图秀秀开放平台拼图实现

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项目中涉及到图片的美化和拼接的功能,于是用了美图秀秀开放平台的api

美图秀秀开放平台地址:http://open.web.meitu.com/

具体步骤如下:

1.创建MeiTuUpload.aspx视图页面:

页面代码:


<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>图片编辑</title>
    <% List<NewTang.Models.Entity.PicInfo> pics = new List<NewTang.Models.Entity.PicInfo>();
       if (ViewData["Pics"] != null)
       {
            pics=(List<NewTang.Models.Entity.PicInfo>)ViewData["Pics"];
       }

         %>
 <script src="http://open.web.meitu.com/sources/xiuxiu.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript" >
window.onload=function(){
    xiuxiu.setFlashvars("localFileEnabled", 1);
	xiuxiu.embedSWF("altContent",2,"100%","100%");
	/*第1个参数是加载编辑器div容器,第2个参数是编辑器类型,第3个参数是div容器宽,第4个参数是div容器高*/

	xiuxiu.setUploadURL("http://localhost:4657/Components/stream.ashx"); //修改为您自己的上传接收图片程序
	xiuxiu.onInit = function ()
	{
	    <% if(pics.Count>0){ %>
		xiuxiu.loadPhoto("<%=pics[0].Path %>");
		<%} %>
	}
	xiuxiu.onUploadResponse = function (data)
	{
		 //alert("上传响应" + data);
		 parent.setfilePath(data);
		 parent.meitu.close();
	}
	xiuxiu.onClose = function() {
	    parent.meitu.close();
	}
}

    function closewbox() {

    }

    function setfilePath(data)
    {

    }
</script>
<style type="text/css">
	html, body { height:100%; overflow:hidden; }
	body { margin:0; }
</style>
</head>
<body >
<form id="upload" action="/Shop/UpLoadImage" method="post"
enctype="multipart/form-data">
<div id="altContent">

	<h1>美图秀秀</h1>
</div>
</form>
</body>
</html>

2.创建MeiTuUpload的Action
代码如下:

        /// <summary>
        /// 美图秀秀拼图
        /// </summary>
        /// <param name="newsInfoId"></param>
        /// <returns></returns>
        public ActionResult MeiTuUpload(string newsInfoId)
        {
            try
            {
                ViewData["title"] = "美图拼图";
                PicInfo pic = new PicInfo();
                pic.NewsInfoId = newsInfoId;
                ViewData["Pics"] = business.Select<PicInfo>(pic);
                //主题信息
                NewsInfo news = new NewsInfo() { NewsInfoID=newsInfoId };
                ViewData["News"] = business.Select<NewsInfo>(news);

            }
            catch (Exception e)
            {
                return new BaseController().Error("Error", "错误信息", e.Message);
            }
            return View();

        }

3.创建文件上传stream.ashx文件,可以从官方下载:备注:setUploadURL(“”) 参数为接收图片文件。php示例可参考 流式上传 或者 标准表单上传C#示例可参考 流式上传 或者 标准表单上传
代码如下:

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Configuration;
using System.IO;
using System.Drawing;
using XiuXiuWeb.XiuXiuStream;

namespace XiuXiuWeb
{
    /// <summary>
    /// Summary description for stream
    /// </summary>
    public class stream : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            //config 配置节点可以将图片保存至指定目录,未配置将保存至 /XiuXiuUpload
            //<appSettings>
            //  <add key="XiuXiuImageSavePath" value="/upload"/>
            //</appSettings>
            string name = null;
            if (context.Request.TotalBytes > 0)
            {
                XiuXiuStreamImage img = new XiuXiuStreamImage(context);
                name = img.Save();
            }
            else
            {
                name = "非法访问";
            }
            context.Response.ContentType = "text/plain";
            context.Response.Write(name);
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }

    namespace XiuXiuStream
    {

        /// <summary>
        /// 上传抽象类
        /// </summary>
        public abstract class XiuXiuImage
        {

            public String ImageUrl { get;set;}
            /// <summary>
            /// 基类保存
            /// </summary>
            /// <returns>返回保存路径+文件名</returns>
            public virtual string Save()
            {
                string fileName = this.GetFileName();
                if (null == fileName) return null;

                //string root = HttpContext.Current.Server.MapPath(path);
                string thisDate = "";
                thisDate = DateTime.Now.Year.ToString();
                if (DateTime.Now.Month < 10)
                {
                    thisDate += "0" + DateTime.Now.Month.ToString();
                }
                else
                {
                    thisDate += DateTime.Now.Month.ToString();
                }
                if (DateTime.Now.Day < 10)
                {
                    thisDate += "0" + DateTime.Now.Day.ToString();
                }
                else
                {
                    thisDate += DateTime.Now.Day.ToString();
                }
                string relativePath = System.Web.HttpContext.Current.Server.MapPath(ConfigurationSettings.AppSettings["UploadDirectory"] + "pic/" + thisDate.ToString().Replace(" ", ""));
                if (!Directory.Exists(relativePath))
                {
                    Directory.CreateDirectory(relativePath);
                }
                //if (!Directory.Exists(root))
                //{
                //    Directory.CreateDirectory(root);
                //}
                this.ImageUrl=ConfigurationSettings.AppSettings["WebSiteUrl"] + "/UploadFiles/pic/" + thisDate.ToString().Replace(" ", "") + "/" + fileName;

                this.FileName = Path.Combine(relativePath, fileName);
                string[] paths = { relativePath, fileName };
                return string.Join("/", paths);
            }

            public XiuXiuImage()
            {
                path = path == null ? "/XiuXiuUpload" : path;
            }

            /// <summary>
            /// 确定上传类型
            /// </summary>
            protected bool IsUplodType
            {
                get
                {
                    string extension = this.GetExtension();
                    return ".jpg .gif .png .icon .bmp .tiff .wmf .emf .exif".IndexOf(extension) >= 0 ? true : false;
                }
            }
            private string _fileName = null;
            /// <summary>
            /// 最终保存路径
            /// </summary>
            protected string FileName
            {
                set { _fileName = value; }
                get { return _fileName; }
            }

            /// <summary>
            /// 配置文件路径 无配置上传到XiuXiuUpload
            /// </summary>
            protected string path = ConfigurationManager.AppSettings["UploadDirectory"];

            /// <summary>
            /// 获取拓展名
            /// </summary>
            /// <returns></returns>
            protected abstract string GetExtension();

            /// <summary>
            /// 获取最终保存文件名
            /// </summary>
            /// <returns></returns>
            protected string GetFileName()
            {
                string extension = this.GetExtension();
                if (null == extension) return null;
                else
                {
                    string name = this.GetName();
                    string[] imgName = { "news", name, extension };
                    return string.Join("", imgName);
                }
            }
            /// <summary>
            /// 获取保存文件名
            /// </summary>
            /// <returns></returns>
            private string GetName()
            {
                DateTime uploadTime = DateTime.Now;
                string[] times = { uploadTime.Year.ToString(), uploadTime.Month.ToString(), uploadTime.Day.ToString(),
                                 uploadTime.Hour.ToString(), uploadTime.Millisecond.ToString(), uploadTime.Second.ToString() };
                return string.Join("", times);
            }
        }
        /// <summary>
        /// Stream接收
        /// </summary>
        public sealed class XiuXiuStreamImage : XiuXiuImage
        {
            private MemoryStream stream = null;

            //图片的url路径
            private String webPath=null;

            public XiuXiuStreamImage(HttpContext context)
            {
                int count = context.Request.TotalBytes;
                if (count > 0)
                {
                    byte[] bytes = context.Request.BinaryRead(context.Request.TotalBytes);
                    this.stream = new MemoryStream(bytes);
                }
            }

            private Image File
            {
                get
                {
                    return this.stream == null ? null : Image.FromStream(this.stream);
                }
            }
            /// <summary>
            /// 保存图片,成功返回文件路径,失败null
            /// 非图片格式返回错误信息
            /// </summary>
            /// <returns>成功返回文件路径 失败null</returns>
            public override string Save()
            {
                if (!this.IsUplodType)
                {
                    this.stream.Dispose();
                    return "Only allowed to upload pictures.";
                }
                string returnName = base.Save();
                if (this.FileName != null)
                {
                    this.File.Save(this.FileName);
                    this.stream.Dispose();
                    return ImageUrl;
                }
                return null;
            }

            protected override string GetExtension()
            {
                if (this.File != null)
                {
                    string fileExtension = this.File.RawFormat.ToString().Substring(14),
                           jpgExtension = System.Drawing.Imaging.ImageFormat.Jpeg.Guid.ToString(),
                           gifExtension = System.Drawing.Imaging.ImageFormat.Gif.Guid.ToString(),
                           pngExtension = System.Drawing.Imaging.ImageFormat.Png.Guid.ToString(),
                           iconExtension = System.Drawing.Imaging.ImageFormat.Icon.Guid.ToString(),
                           bmpExtension = System.Drawing.Imaging.ImageFormat.Bmp.Guid.ToString(),
                           tiffExtension = System.Drawing.Imaging.ImageFormat.Tiff.Guid.ToString(),
                           wmfExtension = System.Drawing.Imaging.ImageFormat.Wmf.Guid.ToString(),
                           emfExtension = System.Drawing.Imaging.ImageFormat.Emf.Guid.ToString(),
                           exifExtension = System.Drawing.Imaging.ImageFormat.Exif.Guid.ToString();
                    fileExtension = fileExtension.Substring(0, fileExtension.Length - 1);
                    if (fileExtension == jpgExtension)
                    {
                        return ".jpg";
                    }
                    else if (fileExtension == gifExtension)
                    {
                        return ".gif";
                    }
                    else if (fileExtension == pngExtension)
                    {
                        return ".png";
                    }
                    else if (fileExtension == iconExtension)
                    {
                        return ".icon";
                    }
                    else if (fileExtension == bmpExtension)
                    {
                        return ".bmp";
                    }
                    else if (fileExtension == tiffExtension)
                    {
                        return ".tiff";
                    }
                    else if (fileExtension == wmfExtension)
                    {
                        return ".wmf";
                    }
                    else if (fileExtension == emfExtension)
                    {
                        return ".emf";
                    }
                    else if (fileExtension == exifExtension)
                    {
                        return ".exif";
                    }
                }
                return null;
            }
        }
    }
}

4.调用页面,重点在这儿,官方用的是prettify.js的弹窗,我用的wbox.js的iframe加载MeiTuUpload.aspx页面来实现的调用,官方封装了个插件用于执行示例代码来动态加载美图秀秀插件,下面是代码:
页面代码:

   <tr>
    <td class="bg1" height="25" align="right">缩略图:</td>
    <td class="bg2"><img id="imgNewsInfo" src="<%=newsInfo.NewsInfoImage %>" width="220" height="200" />
   </td>
  </tr>
   <tr>
    <td class="bg1" height="25" align="right">缩略图上传:</td>
    <td class="bg2"><input type="hidden" id="filePath" name="filePath" value="<%=newsInfo.NewsInfoImage %>" /><a id="meitu" class="btngreen" href="javascript:;">拼图</a>
   </td>
  </tr>

js弹窗代码:

    var meitu = $("#meitu").wBox({ noTitle:true,title: "拼图", requestType: "iframe", iframeWH: { width: 420, height: 400 }, target: "/NewsInfoManager/MeiTuUpload?InfoClass=2&newsInfoId=<%=newsInfo.NewsInfoID %>" });
    //设置返回值的路径
    function setfilePath(data) {
        $('#filePath').val(data);
        $('#imgNewsInfo').attr('src',data);
    }
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