$http get 不会在 AngularJS 中抛出成功或错误

Question

下面是WCFRESTful服务对GET

的声明

[OperationContract]
[WebGet(UriTemplate= "MemberSearch/{MemberName}", ResponseFormat=WebMessageFormat.Json,RequestFormat=WebMessageFormat.Json,BodyStyle=WebMessageBodyStyle.Wrapped)]
string MemberSearch(string MemberName);

下面是我创建的RESTful服务

public string MemberSearch(string MemberName)
    {
        string MemberId = string.Empty;
        string strSqlConn = string.Empty;

        SqlConnection sqlCon = new SqlConnection(ConfigurationManager.ConnectionStrings["sqlCon"].ConnectionString);
        sqlCon.Open();

        SqlCommand sqlCom = new SqlCommand("Select MemberId From Member Where MemberName Like '%" + MemberName + "%'");
        sqlCom.CommandType = System.Data.CommandType.Text;
        sqlCom.Connection = sqlCon;

        SqlDataReader rd = sqlCom.ExecuteReader();

        while (rd.Read())
        {
            MemberId = Convert.ToString(rd["MemberId"]);
        }
        return MemberId;
    }

下面是table

中的数据

MemberId MemberName
1   John        
2   Mike        
3   Gracy       
4   Smith

下面是AngularJS中的调用代码

var app = angular.module("app", []);
app.controller("main", function ($scope, $http) {
var MemberName = "Jo";

$scope.keyword = '';

$scope.GetAllData = function () {

    $http.get('http://localhost/MemberEligibilityDemo/MemberService.svc/MemberSearch/' + MemberName)
        .success(function (data, status, headers, config) {
            $scope.Details = data;
        })
        .error(function (data, status, header, config) {
            $scope.ResponseDetails = "Data: " + data +
                "<br />status: " + status +
                "<br />headers: " + jsonFilter(header) +
                "<br />config: " + jsonFilter(config);
        });
};
});

Angular 代码既不会成功也不会出错

网址如下

http://localhost/MemberEligibilityDemo/MemberService.svc/MemberSearch/

调用位置如下

http://localhost/Caller

WCF RESTful 服务的结果如下

{"MemberSearchResult":"1"}

编辑

调用地址如下

<body ng-app="app">
<table id="tblContainer" ng-controller="main">
    <tr>
        <td><input type="button" name="DisplayDetails" value="Display Details" ng-click="GetAllData()"></td>
    </tr> 
    <tr>
        <td>
            <p ng-bind="ResponseDetails"></p>
            {{ResponseDetails}}
        </td>
    </tr>
</table>

为什么在 AngularJS 代码中没有执行成功或错误。

Answer 1

您应该将 $http 函数更改为：

$http.get('http://localhost/MemberEligibilityDemo/MemberService.svc/MemberSearch/' + MemberName)
    .then(function(resp) {
        $scope.Details = resp.data;
    }, function(err) {
        var data = err.data;
        var status = err.status;
        var header = err.header;
        var config = err.config;
        $scope.ResponseDetails = "Data: " + data +
            "<br />status: " + status +
            "<br />headers: " + jsonFilter(header) +
            "<br />config: " + jsonFilter(config);

    });

My answer assumes that you have a button or link that is calling this from your UI.

我还猜测您正在迭代用户列表 (ng-repeat)，建议将您的方法更改为以下内容，并像这样调用：GetAllData(memberId).

$scope.GetAllData = function (memberId) {
    $http.get('http://localhost/MemberEligibilityDemo/MemberService.svc/MemberSearch/' + memberId)
    // abbreviated
}

$http get 不会在 AngularJS 中抛出成功或错误

$http get does not throw success or error in AngularJS

angularjs

wcf

angularjs-1.6