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NG-資源返回一個對象具有以下默認資源行動
{ 'get': {method:'GET'},
'save': {method:'POST'},
'query': {method:'GET', isArray:true},
'remove': {method:'DELETE'},
'delete': {method:'DELETE'} };
我不知道究竟從AngularJS查詢從REST的WebAPI端點數據的最佳方法，但是我已經實現了Predicate Builder服務器端，以便使用Linq查詢我的數據庫。我有一個名爲「Search（）」@/api/Product/Search的（POST）端點，它接受一個反序列化的searchCriteria JSON對象，並將其提供給Linq謂詞構建器，並針對dbContext執行。我WebApi2控制器的結構是這樣，使用新的路由屬性功能：
[RoutePrefix("Product")]
public class ProductController : ApiController
{
[HttpGet]
[Route("")]
public IEnumerable<Product> Get()
{
try
{
return _productBL.Get();
}
catch
{
throw new HttpResponseException(HttpStatusCode.InternalServerError);
}
}
[HttpGet]
[Route("{productId}")]
public Product Get(string productId)
{
try
{
var product= _externalWorkStepBL.GetById(productId);
if (product== null)
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
return product;
}
catch (Exception)
{
throw new HttpResponseException(HttpStatusCode.InternalServerError);
}
}
[HttpPost]
public HttpResponseMessage Post([FromBody]Product product)
{
try
{
_productBL.Insert(product);
var response = Request.CreateResponse(HttpStatusCode.Created, product);
response.Headers.Location = new Uri(Request.RequestUri, string.Format("Product/{0}", product.workItemID));
return response;
}
catch
{
throw new HttpResponseException(HttpStatusCode.BadRequest);
}
}
[HttpPost]
[Route("Search")]
public IEnumerable<Product> Where([FromBody] SearchCriteria searchCriteria)
{
if (searchCriteria == null || (searchCriteria.FieldContainsList == null || searchCriteria.FieldEqualsList == null || searchCriteria.FieldDateBetweenList == null))
{
throw new HttpRequestException("Error in, or null, JSON");
}
return _productBL.Where(searchCriteria);
}
[HttpPut]
[Route("")]
public HttpResponseMessage Put([FromBody]Productproduct)
{
try
{
_productBL.Update(product);
var response = Request.CreateResponse(HttpStatusCode.OK);
response.Headers.Location = new Uri(Request.RequestUri, string.Format("Product/{0}", product.Id));
return response;
}
catch()
{
throw new HttpResponseException(HttpStatusCode.InternalServerError);
}
}
[HttpDelete]
[Route("{productId}")]
public void Delete(string productId)
{
HttpResponseMessage response;
try
{
_productBL.Delete(productId);
response = new HttpResponseMessage(HttpStatusCode.NoContent);
response.Headers.Location = new Uri(Request.RequestUri, string.Format("Product/"));
}
catch (Exception)
{
throw new HttpResponseException(HttpStatusCode.InternalServerError);
}
}
}
在客戶端，我包裹在一個工廠名爲$ myResource $資源，增加了PUT方法。然後我用$ myResource我的其他工廠如下：
var app = angular.module('App', ['ngResource'])
.factory('$myResource', ['$resource', function ($resource) {
return function (url, paramDefaults, actions) {
var MY_ACTIONS = {
'update': { method: 'PUT' }
};
actions = angular.extend({}, MY_ACTIONS, actions);
return $resource(url, paramDefaults, actions);
}
}])
.service('ProductFactory', ['$myResource', function ($myResource) {
return $myResource('/api/Product/:productId')
}]);
這個偉大的工程，但現在我想補充我的搜索端點。 Angular documentation for ng-Resource指出可以在操作方法中覆蓋url，但我不清楚如何執行此操作。我可以將「搜索」操作添加到$ myResource中，但是如何修改ProductFactory中的網址？
.factory('$myResource', ['$resource', function ($resource) {
return function (url, paramDefaults, actions) {
var MY_ACTIONS = {
'update': { method: 'PUT' },
'search': { method: 'POST','params': { searchCriteria: '@searchCriteria' }, isArray: true }
};
actions = angular.extend({}, MY_ACTIONS, actions);
return $resource(url, paramDefaults, actions);
}
}])
因爲它目前是，調用ProductFactory.search（searchCriteria）發送一個正確的JSON POST請求，但是到了錯誤的URL， 「/ API /產品」。我需要它發佈到「/ api/Product/Search」。如何修改$ myResource使用「api/xxx/Search」，其中xxx是控制器名稱？