關於使用jquery.form.js上傳文件同時提交表單的方法

很久沒有寫webform了，最近在改一個很久很久以前的一個CMS系統，遇到上傳文件同時提交表單的功能，由於不想對現有現目的代碼結構作過多的改動，依然沿續使用Jquery來上傳文件並提交表單。具體操作如下：
1.引入兩個JS文件

2.HTML部分如下：

3.JS代碼部分

(“#formDealer”).ajaxSubmit({
                url: “/handlers/submit_handler.ashx?action=uploadShopPhoto”,
                type: “post”,
                dataType: “json”, //數據類型
                data: {
                    txtMobile: txtMobile,
                    txtCode: txtCode,
                    txtPassword: txtPassword,
                    txtNickName: txtNickName,
                    txtArea: areaStr,
                    txtAddress: txtAddress,
                    txtRefereeMobile: (“#txtRefereeMobile”).val(),
areaId: areaId
},
success: function (data) {
//清空file控件裏面的值
var file = $(“#btnfile”);
file.after(file.clone().val(“”));
file.remove();
}
});
4.後臺 ashx C#代碼

//獲得輸入框的值，進行添加操作
string address = DTRequest.GetString(“txtMobile”);

        //獲取上傳的文件的對象
        HttpPostedFile file = context.Request.Files["btnfile"];
        //獲取上傳文件的名稱
        string fileName = file.FileName;
        //截取獲得上傳文件的名稱(ie上傳會把絕對路徑也連帶上，這裏只得到文件的名稱)
        string newFileName = fileName.Substring(fileName.LastIndexOf("\\") + 1);
        //給文件添加隨機戳
        string path = "/upload/" + DateTime.Now.ToString("yyyyMMddHHmmssff") + newFileName;
        //保存文件
        file.SaveAs(context.Server.MapPath(path));
            //TO DO add method

關於MVC中怎麼實現，後續將更新。

另：付上DTRequest類的詳細代碼。如有問題，隨時聯繫。

public class DTRequest
{
///
/// 判斷當前頁面是否接收到了Post請求
///
/// 是否接收到了Post請求
public static bool IsPost()
{
return HttpContext.Current.Request.HttpMethod.Equals(“POST”);
}

    /// <summary>
    /// 判斷當前頁面是否接收到了Get請求
    /// </summary>
    /// <returns>是否接收到了Get請求</returns>
    public static bool IsGet()
    {
        return HttpContext.Current.Request.HttpMethod.Equals("GET");
    }

    /// <summary>
    /// 返回指定的服務器變量信息
    /// </summary>
    /// <param name="strName">服務器變量名</param>
    /// <returns>服務器變量信息</returns>
    public static string GetServerString(string strName)
    {
        if (HttpContext.Current.Request.ServerVariables[strName] == null)
            return "";

        return HttpContext.Current.Request.ServerVariables[strName].ToString();
    }

    /// <summary>
    /// 返回上一個頁面的地址
    /// </summary>
    /// <returns>上一個頁面的地址</returns>
    public static string GetUrlReferrer()
    {
        string retVal = null;

        try
        {
            retVal = HttpContext.Current.Request.UrlReferrer.ToString();
        }
        catch{}

        if (retVal == null)
            return "";

        return retVal;
    }

    /// <summary>
    /// 得到主機頭
    /// </summary>
    public static string GetHost()
    {
        return HttpContext.Current.Request.Url.Host;
    }

    /// <summary>
    /// 得到主機名
    /// </summary>
    public static string GetDnsSafeHost()
    {
        return HttpContext.Current.Request.Url.DnsSafeHost;
    }


    /// <summary>
    /// 獲取當前請求的原始 URL(URL 中域信息之後的部分,包括查詢字符串(如果存在))
    /// </summary>
    /// <returns>原始 URL</returns>
    public static string GetRawUrl()
    {
        return HttpContext.Current.Request.RawUrl;
    }

    /// <summary>
    /// 判斷當前訪問是否來自瀏覽器軟件
    /// </summary>
    /// <returns>當前訪問是否來自瀏覽器軟件</returns>
    public static bool IsBrowserGet()
    {
        string[] BrowserName = {"ie", "opera", "netscape", "mozilla", "konqueror", "firefox"};
        string curBrowser = HttpContext.Current.Request.Browser.Type.ToLower();
        for (int i = 0; i < BrowserName.Length; i++)
        {
            if (curBrowser.IndexOf(BrowserName[i]) >= 0)
                return true;
        }
        return false;
    }

    /// <summary>
    /// 判斷是否來自搜索引擎鏈接
    /// </summary>
    /// <returns>是否來自搜索引擎鏈接</returns>
    public static bool IsSearchEnginesGet()
    {
        if (HttpContext.Current.Request.UrlReferrer == null)
            return false;

        string[] SearchEngine =
            {
                "google", "yahoo", "msn", "baidu", "sogou", "sohu", "sina", "163", "lycos", "tom",
                "yisou", "iask", "soso", "gougou", "zhongsou"
            };
        string tmpReferrer = HttpContext.Current.Request.UrlReferrer.ToString().ToLower();
        for (int i = 0; i < SearchEngine.Length; i++)
        {
            if (tmpReferrer.IndexOf(SearchEngine[i]) >= 0)
                return true;
        }
        return false;
    }

    /// <summary>
    /// 獲得當前完整Url地址
    /// </summary>
    /// <returns>當前完整Url地址</returns>
    public static string GetUrl()
    {
        return HttpContext.Current.Request.Url.ToString();
    }

    /// <summary>
    /// 獲得指定Url參數的值
    /// </summary>
    /// <param name="strName">Url參數</param>
    /// <returns>Url參數的值</returns>
    public static string GetQueryString(string strName)
    {
        return GetQueryString(strName, false);
    }

    /// <summary>
    /// 獲得指定Url參數的值
    /// </summary> 
    /// <param name="strName">Url參數</param>
    /// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
    /// <returns>Url參數的值</returns>
    public static string GetQueryString(string strName, bool sqlSafeCheck)
    {
        if (HttpContext.Current.Request.QueryString[strName] == null)
            return "";

        if (sqlSafeCheck && !Utils.IsSafeSqlString(HttpContext.Current.Request.QueryString[strName]))
            return "unsafe string";

        return HttpContext.Current.Request.QueryString[strName];
    }

    /// <summary>
    /// 獲得當前頁面的名稱
    /// </summary>
    /// <returns>當前頁面的名稱</returns>
    public static string GetPageName()
    {
        string [] urlArr = HttpContext.Current.Request.Url.AbsolutePath.Split('/');
        return urlArr[urlArr.Length - 1].ToLower();
    }

    /// <summary>
    /// 返回表單或Url參數的總個數
    /// </summary>
    /// <returns></returns>
    public static int GetParamCount()
    {
        return HttpContext.Current.Request.Form.Count + HttpContext.Current.Request.QueryString.Count;
    }

    /// <summary>
    /// 獲得指定表單參數的值
    /// </summary>
    /// <param name="strName">表單參數</param>
    /// <returns>表單參數的值</returns>
    public static string GetFormString(string strName)
    {
        return GetFormString(strName, false);
    }

    /// <summary>
    /// 獲得指定表單參數的值
    /// </summary>
    /// <param name="strName">表單參數</param>
    /// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
    /// <returns>表單參數的值</returns>
    public static string GetFormString(string strName, bool sqlSafeCheck, HttpContext context = null)
    {
        if (context == null)
        {
            if (HttpContext.Current.Request.Form[strName] == null)
                return "";

            if (sqlSafeCheck && !Utils.IsSafeSqlString(HttpContext.Current.Request.Form[strName]))
                return "unsafe string";

            return HttpContext.Current.Request.Form[strName];
        }
        else
        {
            if (context.Request.Form[strName] == null)
                return "";

            if (sqlSafeCheck && !Utils.IsSafeSqlString(context.Request.Form[strName]))
                return "unsafe string";

            return context.Request.Form[strName];
        }
    }

    public static string GetFormString(HttpContext context,string strName)
    {
        return GetFormString(strName, false, context);
    }

    /// <summary>
    /// 獲得Url或表單參數的值, 先判斷Url參數是否爲空字符串, 如爲True則返回表單參數的值
    /// </summary>
    /// <param name="strName">參數</param>
    /// <returns>Url或表單參數的值</returns>
    public static string GetString(string strName)
    {
        return GetString(strName, false);
    }

    /// <summary>
    /// 獲得Url或表單參數的值, 先判斷Url參數是否爲空字符串, 如爲True則返回表單參數的值
    /// </summary>
    /// <param name="strName">參數</param>
    /// <param name="sqlSafeCheck">是否進行SQL安全檢查</param>
    /// <returns>Url或表單參數的值</returns>
    public static string GetString(string strName, bool sqlSafeCheck)
    {
        if ("".Equals(GetQueryString(strName)))
            return GetFormString(strName, sqlSafeCheck);
        else
            return GetQueryString(strName, sqlSafeCheck);
    }

    /// <summary>
    /// 獲得指定Url參數的int類型值
    /// </summary>
    /// <param name="strName">Url參數</param>
    /// <returns>Url參數的int類型值</returns>
    public static int GetQueryInt(string strName)
    {
        return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], 0);
    }

    /// <summary>
    /// 獲得指定Url參數的int類型值
    /// </summary>
    /// <param name="strName">Url參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>Url參數的int類型值</returns>
    public static int GetQueryInt(string strName, int defValue)
    {
        return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], defValue);
    }

    /// <summary>
    ///  獲得指定Url參數的int類型值
    /// </summary>
    /// <param name="context"></param>
    /// <param name="strName"></param>
    /// <param name="defValue"></param>
    /// <returns></returns>
    public static int GetQueryInt(HttpContext context,string strName, int defValue)
    {
        return Utils.StrToInt(context.Request.QueryString[strName], defValue);
    }

    /// <summary>
    /// 獲得指定Url參數的int類型值
    /// </summary>
    /// <param name="context"></param>
    /// <param name="strName"></param>
    /// <param name="defValue"></param>
    /// <returns></returns>
    public static int GetFormInt(HttpContext context, string strName, int defValue)
    {
        return Utils.StrToInt(context.Request.Form[strName], defValue);
    }

    /// <summary>
    /// 獲得指定表單參數的int類型值
    /// </summary>
    /// <param name="strName">表單參數</param>
    /// <returns>表單參數的int類型值</returns>
    public static int GetFormInt(string strName)
    {
        return GetFormInt(strName, 0);
    }

    /// <summary>
    /// 獲得指定表單參數的int類型值
    /// </summary>
    /// <param name="strName">表單參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>表單參數的int類型值</returns>
    public static int GetFormInt(string strName, int defValue)
    {
        return Utils.StrToInt(HttpContext.Current.Request.Form[strName], defValue);
    }

    /// <summary>
    /// 獲得指定Url或表單參數的int類型值, 先判斷Url參數是否爲缺省值, 如爲True則返回表單參數的值
    /// </summary>
    /// <param name="strName">Url或表單參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>Url或表單參數的int類型值</returns>
    public static int GetInt(string strName, int defValue)
    {
        if (GetQueryInt(strName, defValue) == defValue)
            return GetFormInt(strName, defValue);
        else
            return GetQueryInt(strName, defValue);
    }

    /// <summary>
    /// 獲得指定Url參數的decimal類型值
    /// </summary>
    /// <param name="strName">Url參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>Url參數的decimal類型值</returns>
    public static decimal GetQueryDecimal(string strName, decimal defValue)
    {
        return Utils.StrToDecimal(HttpContext.Current.Request.QueryString[strName], defValue);
    }

    /// <summary>
    /// 獲得指定表單參數的decimal類型值
    /// </summary>
    /// <param name="strName">表單參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>表單參數的decimal類型值</returns>
    public static decimal GetFormDecimal(string strName, decimal defValue)
    {
        return Utils.StrToDecimal(HttpContext.Current.Request.Form[strName], defValue);
    }

    /// <summary>
    /// 獲得指定Url參數的float類型值
    /// </summary>
    /// <param name="strName">Url參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>Url參數的int類型值</returns>
    public static float GetQueryFloat(string strName, float defValue)
    {
        return Utils.StrToFloat(HttpContext.Current.Request.QueryString[strName], defValue);
    }

    /// <summary>
    /// 獲得指定表單參數的float類型值
    /// </summary>
    /// <param name="strName">表單參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>表單參數的float類型值</returns>
    public static float GetFormFloat(string strName, float defValue)
    {
        return Utils.StrToFloat(HttpContext.Current.Request.Form[strName], defValue);
    }

    /// <summary>
    /// 獲得指定Url或表單參數的float類型值, 先判斷Url參數是否爲缺省值, 如爲True則返回表單參數的值
    /// </summary>
    /// <param name="strName">Url或表單參數</param>
    /// <param name="defValue">缺省值</param>
    /// <returns>Url或表單參數的int類型值</returns>
    public static float GetFloat(string strName, float defValue)
    {
        if (GetQueryFloat(strName, defValue) == defValue)
            return GetFormFloat(strName, defValue);
        else
            return GetQueryFloat(strName, defValue);
    }

    /// <summary>
    /// 獲得當前頁面客戶端的IP
    /// </summary>
    /// <returns>當前頁面客戶端的IP</returns>
    public static string GetIP()
    {
        string result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; 
        if (string.IsNullOrEmpty(result))
            result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
        if (string.IsNullOrEmpty(result))
            result = HttpContext.Current.Request.UserHostAddress;
        if (string.IsNullOrEmpty(result) || !Utils.IsIP(result))
            return "127.0.0.1";
        return result;
    }

    /// <summary>
    /// 獲取本機IPD
    /// </summary>
    /// <returns></returns>
    public static string GetLocalIP()
    {
        try
        {
            string HostName = Dns.GetHostName(); //得到主機名  
            IPHostEntry IpEntry = Dns.GetHostEntry(HostName);
            for (int i = 0; i < IpEntry.AddressList.Length; i++)
            {
                //從IP地址列表中篩選出IPv4類型的IP地址  
                //AddressFamily.InterNetwork表示此IP爲IPv4,  
                //AddressFamily.InterNetworkV6表示此地址爲IPv6類型  
                if (IpEntry.AddressList[i].AddressFamily == AddressFamily.InterNetwork)
                {
                    return IpEntry.AddressList[i] + "";
                }
            }
            return "";
        }
        catch (Exception ex)
        {
            LogExt.WriteLog(ex, typeof(DTRequest));
            return "";
        }
    }
}

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