[代码分享]上传文件到服务器(普通表单数据和文件)

Question

本帖最后由 feiazifeiazi 于 2011-02-21 10:26:35 编辑

Answer 1

代码，没变色。我再试一次。。using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Net; 
using System.Collections; 
using System.Net.Mime; 
using System.Globalization; 
using System.IO; namespace Helper 
{ 
    /// <summary> 
    /// 上传 
    /// </summary> 
    public class UploadHelper 
    { 
        // 边界数据 
        /// <summary> 
        /// 边界数据(boundary = "---------------------------7db38610205dc") 
        /// </summary> 
        public string BoundaryData { get; set; }         //数据编码 
        /// <summary> 
        /// 数据编码,默认为UTF8 
        /// </summary> 
        public Encoding Encoding { get; set; }         //尾部数据 
        /// <summary> 
        /// 尾部数据 
        /// </summary> 
        private string EndData 
        { 
            get 
            { 
                return Environment.NewLine + "--" + this.BoundaryData + "--" + Environment.NewLine; 
            } 
        }         /// <summary> 
        /// ctor 
        /// </summary> 
        public UploadHelper() 
        { 
            string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x", NumberFormatInfo.CurrentInfo); 
            this.BoundaryData = boundary; 
            this.Encoding = Encoding.UTF8; 
        }         /// <summary> 
        /// ctor 
        /// </summary> 
        public UploadHelper(Encoding encoding) 
        { 
            this.Encoding = encoding; 
        }         /// <summary> 
        /// ctor 
        /// </summary> 
        public UploadHelper(string boundary, Encoding encoding) 
        { 
            this.BoundaryData = boundary; 
            this.Encoding = encoding; 
        }         //普通 表单属性 数据 
        /// <summary> 
        /// 普通 表单属性 数据(-----------------------------7db210302011cc\r\nContent-Disposition: form-data; name="Mobile") 
        /// </summary> 
        /// <param name="fieldName">属性名 </param> 
        /// <param name="fieldValue">属性值 </param> 
        /// <returns> </returns> 
        public byte[] CreateNormalFieldData(string fieldName, string fieldValue) 
        { 
            string data = "{1}{0}Content-Disposition: form-data; name=\"{2}\"{0}{0}{3}{0}"; 
            data = string.Format(data, Environment.NewLine, "--" + this.BoundaryData, fieldName, fieldValue); 
            return this.Encoding.GetBytes(data); 
        }         //上传文件属性 数据 
        /// <summary> 
        /// 上传文件属性 数据 
        /// </summary> 
        /// <param name="fieldName">属性名 </param> 
        /// <param name="fileName">上传文件名 </param> 
        /// <param name="content_type">上传文件类型 </param> 
        /// <param name="fileBytes">byte数组 </param> 
        /// <returns> </returns> 
        public byte[] CreateFileFieldData(string fieldName, string fileName, string content_type, byte[] fileBytes) 
        { 
            string data = "{1}{0}Content-Disposition: form-data; name=\"{2}\"; filename=\"{3}\"{0}Content-Type: {4}{0}{0}"; 
            data = string.Format(data, Environment.NewLine, "--" + this.BoundaryData, fieldName, fileName, content_type); 
            byte[] dataBytes = this.Encoding.GetBytes(data); 
            byte[] resultBytes = new byte[dataBytes.Length + fileBytes.Length]; 
            dataBytes.CopyTo(resultBytes, 0); 
            fileBytes.CopyTo(resultBytes, dataBytes.Length); 
            return resultBytes; 
        }         //上传文件属性 数据 
        /// <summary> 
        /// 上传文件属性 数据 
        /// </summary> 
        /// <param name="fieldName">属性名 </param> 
        /// <param name="fileName">上传文件名 </param> 
        /// <param name="content_type">上传文件类型 </param> 
        /// <param name="stream">上传的文件流 </param> 
        /// <returns> </returns> 
        public byte[] CreateFileFieldData(string fieldName, string fileName, string content_type, Stream stream) 
        { 
            return CreateFileFieldData(fieldName, fileName, content_type, UploadHelper.StreamToBytes(stream)); 
        }         //上传文件 
        /// <summary> 
        /// 上传 文件 
        /// </summary> 
        /// <param name="webClient">WebClient </param> 
        /// <param name="uploadUrl">上传地址 </param> 
        /// <param name="length">上传数据的长度 </param> 
        /// <param name="postDataBytes">上传的数据 </param> 
        /// <returns>服务响应的结果 </returns> 
        public string UploadData(WebClient webClient, string uploadUrl, int length, params byte[][] postDataBytes) 
        { 
            webClient.Headers.Add("Content-Type", "multipart/form-data; boundary=" + this.BoundaryData); 
            byte[] ends = this.Encoding.GetBytes(this.EndData); 
            byte[] bytes = new byte[length + ends.Length]; 
            int eachLength = 0; 
            foreach (var item in postDataBytes) 
            { 
                item.CopyTo(bytes, eachLength); 
                eachLength += item.Length; 
            } 
            ends.CopyTo(bytes, eachLength); 
            byte[] responseData = webClient.UploadData(uploadUrl, bytes); 
            string resultStr = this.Encoding.GetString(responseData); 
            resultStr = resultStr.Replace("\t", "").Replace("\r", "").Replace("\n", ""); 
            return resultStr; 
        }         // 上传 普通数据 
        /// <summary> 
        /// 上传 普通数据 
        /// </summary> 
        /// <param name="webClient">WebClient </param> 
        /// <param name="uploadUrl">上传地址 </param> 
        /// <param name="postData">数据 </param> 
        /// <returns> </returns> 
        public string UploadData(WebClient webClient, string uploadUrl, string postData) 
        { 
            webClient.Headers.Add("Content-Type", "application/x-www-form-urlencoded"); 
            byte[] bytes = this.Encoding.GetBytes(postData); 
            byte[] responseData = webClient.UploadData(uploadUrl, "POST", bytes); 
            string srcString = this.Encoding.GetString(responseData); 
            srcString = srcString.Replace("\t", "").Replace("\r", "").Replace("\n", ""); 
            return srcString; 
        } 
        //将 Stream 转成 byte[] 
        /// <summary> 
        /// 将 Stream 转成 byte[] 
        /// </summary> 
        /// <param name="stream">流 </param> 
        /// <returns>byte[] </returns> 
        public static byte[] StreamToBytes(Stream stream) 
        { 
            byte[] bytes = new byte[stream.Length]; 
            stream.Read(bytes, 0, bytes.Length); 
            stream.Seek(0, SeekOrigin.Begin); 
            return bytes; 
        } 
    } 
} 

Answer 2

[Quote=引用 4 楼  的回复:]
不行啊，你这样不能 混合上传啊，既有文件 又有其他 字段怎么办？？
可以混合上传的.. 
本来就是混合上传的。