无法从angularjs控制器调用webservice函数。 它正在访问该文件,但无法访问该功能。 错误:
- 服务器响应状态为500(内部服务器错误)
醇>
- System.InvalidOperationException:Web服务方法名称无效。在 System.Web.Services.Protocols.HttpServerProtocol.Initialize()at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type, HttpContext上下文,HttpRequest请求,HttpResponse响应, 布尔和放大器; abortProcessing)
namespace AngularJSTesting.App{
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
[System.Web.Script.Services.ScriptService]
public class WebService2 : System.Web.Services.WebService
{
string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["TextItConnectionString"].ToString();
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string FetchData()
{
DataTable dt = new DataTable();
using (SqlConnection con = new SqlConnection(connectionString))
{
using (SqlCommand cmd = new SqlCommand("select UserName, Name, Email, PhoneNumber from new_users where UserId < 11 order by UserId asc ", con))
{
con.Open();
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
Dictionary<string, object> row;
foreach (DataRow dr in dt.Rows)
{
row = new Dictionary<string, object>();
foreach (DataColumn col in dt.Columns)
{
row.Add(col.ColumnName, dr[col]);
}
rows.Add(row);
}
return serializer.Serialize(rows);
}
}
}
[WebMethod]
// [ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public static string read()
{
return "test";
}
}
}
js file
'use strict';
app.controller('aboutController', function ($scope, $http) {
$scope.message = "Now viewing About!";
var url = 'WebService2.asmx/read';
$http.get(url)
.success(function (data) {
alert("success");
$scope.users = data;
})
.error(function (data) {
alert("error");
alert(data);
})
});
答案 0 :(得分:0)
您需要将Script Method Get Attribute [ScriptMethod(UseHttpGet = true)]
添加到网络方法。
同时从函数签名中删除static
。
[WebMethod]
[ScriptMethod(UseHttpGet = true)]
public string read()
{
return "test";
}