public interface IService1{    [OperationContract]    [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]    string Article_Pic_Add_Test(TransPicType picType);}    /// <summary>    /// 图片传输用到的复合类型    /// </summary>    [DataContract]    public class TransPicType    {        byte[] byteValue = http://www.mamicode.com/null;        string stringType = "";        [DataMember]        public byte[] ByteValue        {            get; set;        }        [DataMember]        public string StringValue { get; set; }    }

public string Article_Pic_Add_Test(TransPicType picType){                string app_path = AppDomain.CurrentDomain.BaseDirectory;    byte[] bs = picType.ByteValue;    string getStr = picType.StringValue;    //string imgString = String.Join(",", Array.ConvertAll(bs, (Converter<byte, string>)Convert.ToString));//将byte[]转换为字符串    File.WriteAllBytes(app_path + "b6.png", bs);//将图片写入app_path    return null;}

<system.serviceModel>  <behaviors>    <endpointBehaviors>      <behavior name="webBehavior">        <webHttp/>      </behavior>    </endpointBehaviors>  </behaviors>  <bindings>    <basicHttpBinding>      <binding name="BasicHttpBinding_IService1" />    </basicHttpBinding>    <webHttpBinding>      <!--跨域-->      <binding name="webBinding">      </binding>    </webHttpBinding>  </bindings>  <client>    <endpoint address="http://localhost:16625/Service1.svc" binding="webHttpBinding" bindingConfiguration="webBinding"              contract="ser.IService1" name="test"    behaviorConfiguration="webBehavior" />  </client></system.serviceModel>

using System;using System.Collections.Generic;using System.Drawing;using System.Drawing.Imaging;using System.IO;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace WebApplication1{    public partial class _Default : Page    {        protected void Page_Load(object sender, EventArgs e)        {            string app_path = AppDomain.CurrentDomain.BaseDirectory;            byte[] bs = this.BmpToJpegBuff(app_path + "a.jpg");            ser.Service1Client s = new ser.Service1Client();            ser.TransPicType pt = new ser.TransPicType();            pt.ByteValue = bs;            pt.StringValue = "测试文字";            s.Article_Pic_Add_Test(pt);            int i = 0;        }        public byte[] BmpToJpegBuff(string filePath)        {            System.Drawing.Image img = System.Drawing.Image.FromFile(filePath);            ImageConverter converter = new ImageConverter();            byte[] bmpSrc = http://www.mamicode.com/(byte[])converter.ConvertTo(img, typeof(byte[]));            MemoryStream ms = new MemoryStream(bmpSrc);            MemoryStream msjpg = new MemoryStream();            Bitmap myBitmap = new Bitmap(ms);            myBitmap.Save(msjpg, ImageFormat.Jpeg);            byte[] bjpeg = msjpg.GetBuffer();            return bjpeg;        }    }}