C#使用jsonp进行跨域提交表单

来源：互联网发布：电路磁场仿真软件编辑：程序博客网时间：2024/06/05 06:04

跨域提交留言，并返回是否成功！

C#服务端：

public void FeedBackPost(string name, string email, string tel, string website, string desc, string thisIp, string sourse, string callBack)        {            try            {                Response.ContentType = "application/x-javascript";                string str = callBack;                if (thisIp==null)                {                    thisIp = "未取到IP";                }                string strSql = "";                HSBY_DBEntities db = new HSBY_DBEntities();                //验证ip短时间内是否提交太多                Regex rx = new Regex(@"((?:(?:25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d)))\.){3}(?:25[0-5]|2[0-4]\d|((1\d{2})|([1-9]?\d))))");                if (rx.IsMatch(thisIp))                {                    strSql = @"select count(*) from fb_srv_main where ip='" + thisIp + "'";                    int ipCount = db.ExecuteStoreQuery<int>(strSql).FirstOrDefault();                    if (ipCount>10)                    {                        str += "([{\"请勿重复提交！\"}]);";                        Response.Write(str);                        return;                    }                }                fb_srv_main newItem = new fb_srv_main();                newItem.name = name;                newItem.email = email;                newItem.tel = tel;                newItem.site = website;                newItem.content_str = desc;                newItem.ip = thisIp;                newItem.creat_by = sourse;                newItem.creat_on = DateTime.Now;                _mainBLL.Create(ref validationErrors, newItem);                //HttpContext context = new HttpContext();                                                if (validationErrors.Count>0)                 {                    str+=validationErrors[0].ErrorMessage;                    Response.Write(str);                    return;                }                FeedBackEmail( name,  email,  tel,  website,  desc,  thisIp,  sourse);                str += "([{\"Rusltstr\":\"OK\"}]);";                Response.Write(str);                 return;            }            catch (Exception ex)            {                Response.ContentType = "application/x-javascript";                Response.Write(callBack + "([{\"Rusltstr\":\"出错了！\"}]);");                 return;            }        }

JS客户端：

//提交留言返回数据处理function displayResult(data) {                var iRusltstr=data[0].Rusltstr;   if(iRusltstr=="OK"){   //关闭遮罩$("#submitmask").fadeOut(500);alert("提交成功！");   }else{   $("#submitmask").fadeOut(500);alert(iRusltstr+" 请使用其他方式联系我们！");   }           }

//提交留言function SubmitMsg(){var AllInput=$("#formwrap input");var iTextarea=$("#formwrap textarea");//获得焦点样式AllInput.focus(function(){AddFocusStyle($(this))});AllInput.blur(function(){AddFocusStyle($(this))});iTextarea.focus(function(){AddFocusStyle($(this))});iTextarea.blur(function(){AddFocusStyle($(this))});function AddFocusStyle(iInput){if(iInput.attr("style")=="" || iInput.attr("style")==null){iInput.attr("style","border:1px solid #bcbcbc;color:#7a7a7a;");}else{iInput.attr("style","");}}//丢失焦点验证AllInput.blur(function(){FormValiudat($(this));});//表单验证方法function FormValiudat($input){var promptStr="";var pattern = new RegExp("[~'!#$%^&*()-+_=]");if(pattern.test($input.val())){alert("非法字符！亲，请勿尝试注入哦！");return false;}switch($input.attr("id")){case "name":  //姓if($input.val().length>10){$("#redpoint_name").removeClass("hide");$input.focus();return false;}else{$("#redpoint_name").addClass("hide");}  break;case "email":  //emailvar reg = /^[a-z0-9]+([._\\-]*[a-z0-9])*@([a-z0-9]+[-a-z0-9]*[a-z0-9]+.){1,63}[a-z0-9]+$/;if (!reg.test($input.val())) {  $("#redpoint_email").removeClass("hide");$input.focus();return false;}else{$("#redpoint_email").addClass("hide");}  break;  case "tel"://电话var isMobile=/^(?:13\d|15\d|18\d)\d{5}(\d{3}|\*{3})$/;   var isPhone=/^((0\d{2,3})-)?(\d{7,8})(-(\d{3,}))?$/;if(!isMobile.test($input.val()) && !isPhone.test($input.val())){$("#redpoint_tel").removeClass("hide");$input.focus();return false;}else{$("#redpoint_tel").addClass("hide");}  break;  case "website":  if(!(/[^\d]/g).test($input.val())){$("#redpoint_website").removeClass("hide");$input.focus();return false;}else{$("#redpoint_website").addClass("hide");}  break;  case "desc":  var mainText=$input.val(); if(mainText.length>=100){alert("最多100个字！");return false;}  break;}return true;}//表单提交$("#formsubmit").click(function(){var $feedback_input=$("#formleft input");for(var i=0;i<$feedback_input.length;i++){var $thisInput=$($feedback_input[i]);if(!FormValiudat($thisInput)){return;};}//提交表单前打开遮罩$("#submitmask").fadeIn(500);                          var url = "http://www.XXXX.cn:8888/MainAjax/FeedBackPost"    url = "http://www.<span style="font-family: Arial, Helvetica, sans-serif;">XXXX</span><span style="font-family: Arial, Helvetica, sans-serif;">.cn:8888/MainAjax/FeedBackPost?name="+$("#name").val()+"&email="+$("#email").val()+"&tel="+$("#tel").val()+"&website="+$("#website").val()+"&desc="+$("#desc").val()+"&thisIp="+$("#keleyivisitorip").html()+"&callback=displayResult" </span>   $.getScript(url);                           })}

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