ajax當嘗試調用位於Web服務中的函數時返回404請求返回404

我想填充一個下拉列表，其中包含通過ajax GET返回到mySQL數據庫表的數據。如果我嘗試在瀏覽器中導航到/CustomerService.svc，那麼該頁面顯示，但如果我嘗試去/CustomerService.svc/GetCustomers，那麼我得到錯誤狀態代碼404：未找到URL /資源加載失敗。從Chrome開發工具控制檯複製我的錯誤：ajax當嘗試調用位於Web服務中的函數時返回404請求返回404

GET http://localhost:54522/CustomerService.svc/GetCustomer 404 (Not Found) 
send @ jquery.min.js:2 
ajax @ jquery.min.js:2 
CustomerDropDown @ Customer.js:142 
(anonymous) @ Customer.js:13 
dispatch @ jquery.min.js:2 
h @ jquery.min.js:2

[這是在鍍鉻的DevTools控制檯。] [1] [[這是當我請求通過Ajax的URL示出的錯誤頁面。] 2]

CODE：

//In Customer.js: 

    $("#edit-tab").click(function() { 
      CustomerDropDown('inputCustomerSelect'); 
     }); 

    function CustomerDropDown(elementId) { 
      var element = "#" + elementId; 
      var removeOptions = element + " option"; 
      $(removeOptions).remove(); 
     $.ajax({ 
      url: '/CustomerService.svc/GetCustomers', 
      method: 'GET', 
      dataType: 'json', 
      contentType: "application/json; charset=utf-8", 
      success: function (data) { 
       var customers = data; 
       var selectHtml = ""; 
       selectHtml += "<option value='0'> Select Customer </option>"; 
       customers.forEach(function (customer) { 
        selectHtml += "<option value='" + customer.id + "'>" + customer.companyName + "</option>"; 
       }); 

       $(element).append(selectHtml); 

      }, 
      fail: function (data) { 
       alert("Failed to change customer due to:" + data.d); 
      }, 
      error: function (jqXHR, status, error) { 
       alert(jqXHR.statusText); 
       //alert('Status Code=' + jqXHR.status + ' Status=' + status + ' Error=' + error); 
      } 
     }); 
    } 

//In CustomerService.svc: 

     namespace DPQ_AdminDatabaseEditor_WebApp 
     { 
      [ServiceContract(Namespace = "")] 
      [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] 
      public class CustomerService 
      { 
       // To use HTTP GET, add [WebGet] attribute. (Default ResponseFormat is WebMessageFormat.Json) 
       // To create an operation that returns XML, 
       //  add [WebGet(ResponseFormat=WebMessageFormat.Xml)], 
       //  and include the following line in the operation body: 
       //   WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml"; 

       // Add more operations here and mark them with [OperationContract] 
      [OperationContract] 
      [WebInvoke(Method = "GET", 
       BodyStyle = WebMessageBodyStyle.Bare, 
       ResponseFormat = WebMessageFormat.Json 
      )] 
      public List<Customer> GetCustomers() 
      { 
       CustomerDB customerDb = new CustomerDB(); 
       List<Customer> costumers = customerDb.getCustomerList; 
       return costumers; 
      } 
    } 
    } 

//In CustomerDB.cs: 

    public List<Customer> getCustomerList 
      { 
       get 
       { 
        MySqlConnection connection = new MySqlConnection(mySQLConnStr); 
        string sel = "SELECT * " + 
          "FROM customer " + 
          "ORDER BY name ASC"; 

        MySqlCommand command = new MySqlCommand(sel, connection); 

        try 
        { 
         connection.Open(); 
         customerList = new List<Customer>(); 

         MySqlDataReader mSqlReader = command.ExecuteReader(); 

         DataTable dtList = new DataTable(); 
         dtList.Load(mSqlReader); 
         foreach (DataRow row in dtList.Rows) 
         { 
          int id = Convert.ToInt32(mSqlReader["id"]); 
          string compName = Convert.ToString(row["name"]); 
          decimal markup = Convert.ToInt32(row["markup"]); 
          decimal adder = Convert.ToInt32(row["adder"]); 
          bool active = Convert.ToBoolean(row["active"]); 

          Customer record = new Customer 
          { 
           id = id, 
           companyName = compName, 
           markup = markup, 
           adder = adder, 
           active = active 
          }; 

          customerList.Add(record); 
         } 

         connection.Close(); 

        } 
        catch (MySqlException ee) 
        { 
         connection.Close(); 
         Console.Write(ee.Message.ToString()); 
         return null; 
        } 
        return customerList; 
       } 

      }

我也試過網址的 'http：//本地主機：54522/CustomerService.svc/GetCustomers的'，並得到了同樣的錯誤[這是該項目。解決方案資源管理器]。[3]

在web.config中：

<system.serviceModel> 
    <behaviors> 
     <endpointBehaviors> 
     <behavior name="DPQ_AdminDatabaseEditor_WebApp.CustomerServiceAspNetAjaxBehavior"> 
      <webHttp /> 
     </behavior> 
     <behavior name="DPQ_AdminDatabaseEditor_WebApp.VendorServiceAspNetAjaxBehavior"> 
      <webHttp /> 
     </behavior> 
     </endpointBehaviors> 
     <serviceBehaviors> 
     <behavior name=""> 
      <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" /> 
      <serviceDebug includeExceptionDetailInFaults="false" /> 
     </behavior> 
     </serviceBehaviors> 
    </behaviors> 
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" 
     multipleSiteBindingsEnabled="true" /> 
    <services> 
     <service name="DPQ_AdminDatabaseEditor_WebApp.CustomerService"> 
     <endpoint address="" behaviorConfiguration="DPQ_AdminDatabaseEditor_WebApp.CustomerServiceAspNetAjaxBehavior" 
      binding="webHttpBinding" contract="DPQ_AdminDatabaseEditor_WebApp.CustomerService" /> 
     </service> 
     <service name="DPQ_AdminDatabaseEditor_WebApp.VendorService"> 
     <endpoint address="" behaviorConfiguration="DPQ_AdminDatabaseEditor_WebApp.VendorServiceAspNetAjaxBehavior" 
      binding="webHttpBinding" contract="DPQ_AdminDatabaseEditor_WebApp.VendorService" /> 
     </service> 
    </services> 
    </system.serviceModel>

來源

2017-04-26 J Pham

所以我結束了過去，將它創建一個空的項目和複製代碼，我的jQuery代碼開始工作。它一定是Visual Studio的一些問題。

來源

2017-04-28 01:08:26

ajax當嘗試調用位於Web服務中的函數時返回404請求返回404

回答

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