windows服务 post数据问题（急！急！）

[西瓜爱吃橘子]

虾米我用windows服务 扫描数据库将数据库里的数据Post给别的网站。
用的是计时器控件，每隔一定的时间进行自动扫描Post。

问题出现在运行服务后：只更新POST数据库中的两条记录，其它的就不动了，调试了下好像是在POST数据时 响应时间太长了，程序一直在POST等侍，我就把POST的响应时间TimeOut设置为10秒，结果还是只更新POST了两条记录，后面的就不动了。。

代码：

namespace RpEmailService
{
    partial class MailService
    {
        /// <summary> 
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region 组件设计器生成的代码

        /// <summary> 
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.tmiService = new System.Timers.Timer();
            ((System.ComponentModel.ISupportInitialize)(this.tmiService)).BeginInit();
            // 
            // tmiService
            // 
            this.tmiService.Interval = 5000;
            this.tmiService.Elapsed += new System.Timers.ElapsedEventHandler(this.tmiService_Elapsed);
            // 
            // MailService
            // 
            this.ServiceName = "MailService";
            ((System.ComponentModel.ISupportInitialize)(this.tmiService)).EndInit();

        }

        #endregion

        private System.Timers.Timer tmiService;



    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using Model;
using hMailServer;
using System.Xml;
using System.Net;
using System.IO;
using System.Xml.Linq;
namespace RpEmailService
{

    public partial class MailService : ServiceBase
    {

        public MailService()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 开始服务
        /// </summary>
        /// <param name="args"></param>
        protected override void OnStart(string[] args)
        {
            this.tmiService.Enabled = true;
        }

        /// <summary>
        /// 停止服务
        /// </summary>
        protected override void OnStop()
        {
            this.tmiService.Enabled = false;
        }

        private void tmiService_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            this.tmiService.Enabled = false;
            CallBackMail();
            this.tmiService.Enabled = true;
        }

        #region Post更新后的未回复邮件
        /// <summary>
        /// Post更新后的未回复邮件
        /// </summary>
        private void CallBackMail()
        {
            List<ClientMessages> replyMails = BLL.ClientMessagesBLL.SelectClientMessage();//获取未回复邮件
            if (replyMails != null && replyMails.Count > 0)
            {
                //Post邮件信息，更新未回复邮件
                for (int i = 0; i < replyMails.Count; i++)
                {
                    FileStream fs = new FileStream("E://MailLog.txt", FileMode.Append);
                    StreamWriter sw = new StreamWriter(fs);//重写该文件，不存在则创建
                    sw.WriteLine("----------------i--------------------");
                    sw.WriteLine(i);
                    sw.WriteLine("----------------replyMails.Count--------------------");
                    sw.WriteLine(replyMails.Count);
                    sw.Flush();
                    sw.Close();
                    fs.Close();
                    //得到邮件的装态
                    DeliveryStatus d = new DeliveryStatusClass();
                    String status = "";//邮件发送状态
                    switch (d.GetDeliveryStatus(replyMails[i].ServerMessageGUID, replyMails[i].ClientToAddress))
                    {
                        case "SendFail":
                            status = "发送失败";
                            break;
                        case "SendOK":
                            status = "发送成功";
                            break;
                        case "NoRecord":
                            status = "没有此记录";
                            break;
                        case "SendQuotas":
                            status = "发件人邮箱已满，拒绝发送邮件";
                            break;
                        default:
                            status = "未获取到发送状态";
                            break;
                    }
                    String mailStr = string.Format(@"<?xml version='1.0' encoding='UTF-8'?><SendStatus><mail gid={0} recipientaddress ={1} status={2}/></SendStatus>", replyMails[i].ClientMessageGID, replyMails[i].ClientToAddress, status);
                    try
                    {
                        String result = PostDataToUrl(mailStr, replyMails[i].ClientCallBackAddress);
                        if (result.Equals("OK"))
                        {
                            //更新邮件回复状态为已读
                           BLL.ClientMessagesBLL.UpdateMessageReplyed(replyMails[i].ClientMessageID);
                        }
                    }
                    catch (Exception ex)
                    {
                        FileStream fs1 = new FileStream("E://MailLog1.txt", FileMode.Append);
                        StreamWriter sw1 = new StreamWriter(fs);//重写该文件，不存在则创建

                        sw1.WriteLine("----------------Exception--------------------");
                        sw1.WriteLine(ex.Message);
                        sw.Flush();
                        sw.Close();
                        fs.Close();
                        continue;
                    }
                }
            }
        }
        #endregion

        #region post
        const string sUserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";
        const string sContentType =
            "application/x-www-form-urlencoded";
        const string sResponseEncoding = "gb2312";
        /// <summary> 
        /// 数据转换类型
        /// </summary> 
        /// <param name="data">要post的数据</param> 
        /// <param name="url">目标url</param> 
        /// <returns>服务器响应</returns> 
        static string PostDataToUrl(string data, string url)
        {
            Encoding encoding = Encoding.Unicode;
            byte[] bytesToPost = encoding.GetBytes(data);
            return PostDataToUrl(bytesToPost, url);
        }

        /// <summary> 
        /// Post data到url 
        /// </summary> 
        /// <param name="data">要post的数据</param> 
        /// <param name="url">目标url</param> 
        /// <returns>服务器响应</returns> 
        static string PostDataToUrl(byte[] data, string url)
        {
            WebRequest webRequest = WebRequest.Create(url);
            HttpWebRequest httpRequest = webRequest as HttpWebRequest;
            if (httpRequest == null)
            {
                throw new ApplicationException(
                    string.Format("Invalid url string: {0}", url)
                    );
            }

            httpRequest.UserAgent = sUserAgent;
            httpRequest.ContentType = sContentType;
            httpRequest.Method = "POST";
            httpRequest.Timeout = 5000;
            httpRequest.ContentLength = data.Length;
            Stream requestStream = httpRequest.GetRequestStream();
            requestStream.Write(data, 0, data.Length);
            requestStream.Close();

            // Stream responseStream;
            string stringResponse = string.Empty;
            try
            {
                //解析服务器返回状态信息
                //responseStream = httpRequest.GetResponse().GetResponseStream();

                // using (StreamReader responseReader =
                // new StreamReader(responseStream, Encoding.GetEncoding(sResponseEncoding)))
                // {
                //  stringResponse = responseReader.ReadToEnd();
                // }
                //responseStream.Close();
                HttpWebResponse cnblogsRespone = (HttpWebResponse)httpRequest.GetResponse();
                stringResponse = cnblogsRespone.StatusCode.ToString();
            }
            catch
            {

            }
            return stringResponse;
        }
        #endregion

      

    }
}

[烈火蜓蜻]

服务肯定是出异常了，或是怎么回事了，
你记录一下这个异常，然后解决这个异常，问题就搞定了，

[phyllis2001]

肯定有错误，跟踪调试一下执行完第二条记录后到执行第三条时发生什么错误~~

[bbspc_]

求救希望大侠能给我解决解决问题谢谢!
http://topic.csdn.net/u/20101222/15/a4c712a0-01d1-4d25-87c2-48c65d9368c7.html

[烈火蜓蜻]

做服务做个异常日志记录的功能，后面的不更新，也许是服务出异常了，

给你推荐一个，专门用于服务器定时的组件
http://blog.csdn.net/Linux7985/archive/2010/08/27/5843394.aspx

[西瓜爱吃橘子]

别沉呀，！！！求解决！

[boringame]

闲暇时光不想浪费吗？用《Csdn收音机》找个话题聊聊技术吧！

[西瓜爱吃橘子]

问题解决了！

是在Post XML数据时数据流问题

//将：
httpRequest.ContentType = sContentType;
//改为：
httpRequest.ContentType ="text/XML";
//还有在抛XML格式的数据时，最好生成XML对象然后生成byte[]数据流
XmlDocument xmldoc = CreatXml();//创建邮件XML对象
                    byte[] mail = System.Text.Encoding.UTF8.GetBytes(xmldoc.InnerXml);//解释成POST的数据流

//不建议自己直接拼接XML字符串POST出去

//小小的一点经验，希望能帮助大家。嘿嘿！