目前,我希望从API获取数据,使用AngularJS服务发送一些搜索参数。在我的ng模型中,我有一个名为search的变量,我想将该变量用作API URL的参数。
我的第一个(不成功)方法是直接在服务中使用$ scope.search变量:
$http.get('http://www.omdbapi.com/?s='+ $scope.search +'&type=series&r=json').then(function(data){
deferred.resolve(data);
});
我{$ 3}}将$ scope传递给服务是不可能的(也不应该这样做),那么如何将scope变量用作服务中的参数还有,除了添加字符串myUrl + search
之外,还有更简洁的方法来设置参数吗?
完整代码:
myApp.service('showsService', function($http, $q){
var deferred = $q.defer(); //promise to say 'im going to do this later'
$http.get('http://www.omdbapi.com/?s=sherlock&type=series&r=json').then(function(data){
deferred.resolve(data);
});
this.getShows = function(){
return deferred.promise;
}
});
myApp.controller("showsController", function($scope, showsService){
$scope.$watch('search', function() {
fetch();
});
function fetch(){
var promise = showsService.getShows();
promise.then(function(data){
$scope.showsResult = data.data.Search; //using the name than comes back from the API
});
}
});
答案 0 :(得分:2)
只需将search
作为参数传递给服务函数:
myApp.service('showsService', function($http){
this.getShows = function(search){
var url = 'http://www.omdbapi.com/s='+search+'&type=series&r=json';
var promise = $http.get(url);
return promise;
};
});
然后在控制器中:
myApp.controller("showsController", function($scope, showsService){
$scope.$watch('search', function(value) {
fetch(value);
});
function fetch(search){
var promise = showsService.getShows(search);
promise.then(function(response){
$scope.showsResult = response.data.Search;
});
};
});
由于$q.defer
服务已经返回承诺,因此无需使用$http
制作承诺。
$http
服务能够序列化参数:
myApp.service('showsService', function($http){
this.getShows = function(search){
//var url = 'http://www.omdbapi.com/s='+search+'&type=series&r=json';
var url = 'http://www.omdbapi.com/'
var config = {
params: {
s: search,
type: 'series',
r: 'json'
}
};
var promise = $http.get(url, config);
return promise;
};
});
答案 1 :(得分:0)
您可以直接将搜索数据传递给服务
var getShows = showsService.getShows($scope.search);
getShows.then(function(resposne){
console.log(resposne.data);
})
服务代码
myApp.service('showsService',['$http',function commonSrv($http) {
this.getShows=function(search)
{
var promise = $http({
method: 'post',
url: 'http://www.omdbapi.com/',
data:{"s":search, 'type':'series'},
contentType:'application/json; charset=UTF-8',
});
return promise;
};
}]);