当我从jQuery向WebMethod
发送参数时出现此错误 {"消息":"无效的Web服务调用,缺少参数值:\ u0027personelName \ u0027。"," StackTrace":& #34; at System.Web.Script.Services.WebServiceMethodData.CallMethod(Object target,IDictionary $Epsiodes
2参数)\ r \ n在System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context,WebServiceMethodData methodData,IDictionary`) 2 rawRarams)\ r \ n在System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context,WebServiceMethodData methodData)"," ExceptionType":" System.InvalidOperationException" }
我的aspx页面
2 parameters)\r\n at System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary
我的网络服务(PersonelService.asmx)
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="denemeAutoComp.aspx.cs" Inherits="AutoCompleteDeneme.denemeAutoComp" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<link href="Style/jquery-ui-1.10.4.custom.min.css" rel="stylesheet" type="text/css" />
<script src="Script/jquery-1.10.2.js" type="text/javascript"></script>
<script src="Script/jquery-ui-1.10.4.custom.min.js" type="text/javascript">
<script type="text/javascript">
$(document).ready(function () {
$('#txtPersonelName').autocomplete({
source: function (request, response) {
$.ajax({
url: '<%=ResolveUrl("~/PersonelService.asmx/GetPersonelNames") %>',
data: "{ 'searchTerm': '" + request.term + "' }",
type: "POST",
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function (result) {
response(result.d);
},
error: function (result) {
alert('there is a problem processing your request');
alert(result.responseText);
}
});
}
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div style="font-family: Arial" class="divAuto">
Name:
<asp:TextBox ID="txtPersonelName" runat="server"></asp:TextBox>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" />
<br />
<asp:GridView ID="gvPersonels" runat="server">
</asp:GridView>
</div>
</form>
</body>
</html>
答案 0 :(得分:3)
使用JSON时,所有字符串都必须用双引号"
括起来,而不是单引号'
。 \u0027
是单引号,可能是API抱怨的内容。所以如果你替换
data: "{ 'searchTerm': '" + request.term + "' }",
与
data: '{ "searchTerm": "' + request.term + '" }',
它可能有用。
答案 1 :(得分:1)
要解决此错误,您必须确保:
1.发送给函数的参数与函数获取的参数名称相同。
2.发送到函数的参数必须具有相同的&#34;类型&#34;功能得到。
3. json.stringify(param)
将仅位于json表达式的右侧。
代码示例简化:
//功能
[WebMethod]
public static doSomethimg(string[] myParam){}
// jquery中的数据 make 确保param是一个数组(在本例中)
data:{myParam:json.stringify(myArr)},
答案 2 :(得分:1)
您应该在Ajax调用
中从GetPersonelNames传递相同的方法参数data: "{ 'personelName': '" + "your data" + "' }"
答案 3 :(得分:0)
完成了改变!
而不是
data: "{ 'searchTerm': '" + request.term + "' }",
此代码有效
data: JSON.stringify({
personelName : request.term
}),