通过HttpClient 调用ASP.NET Web API示例_实用技巧_

 public class Product { public int ProductID { get; set; } public string ProductName { get; set; } public decimal Price { get; set; } public int Count { get; set; } public string Description { get; set; } }

 public class ProductsController : ApiController { // Mock product list public static List productList = initProductMockDataList(); private static List initProductMockDataList() { return new List() { new Product {ProductID=1,ProductName="Product A",Price=1000000,Count=5,Description="Description A"}, new Product {ProductID=2,ProductName="Product B",Price=200000,Count=2,Description="Description B"}, new Product {ProductID=3,ProductName="Product C",Price=500000,Count=8,Description="Description C"}, new Product {ProductID=4,ProductName="Product D",Price=80000,Count=10,Description="Description D"}, new Product {ProductID=5,ProductName="Product E",Price=300000,Count=3,Description="Description E"} }; } public IEnumerable Get() { return productList; } public Product Get(int id) { return productList.Where(p => p.ProductID == id).FirstOrDefault(); } public void Post([FromBody]Product product) { var lastProduct = productList.OrderByDescending(p => p.ProductID).FirstOrDefault(); int newProductID = lastProduct.ProductID + 1; product.ProductID = newProductID; productList.Add(product); } public void Put([FromBody]Product product) { var currentProduct = productList.Where(p => p.ProductID == product.ProductID).FirstOrDefault(); if (currentProduct != null) { foreach (var item in productList) { if (item.ProductID.Equals(currentProduct.ProductID)) { item.ProductName = product.ProductName; item.Price = product.Price; item.Count = product.Count; item.Description = product.Description; } } } } public void Delete(int id) { Product product = productList.Where(p => p.ProductID == id).FirstOrDefault(); productList.Remove(product); } } 

 using System.Net.Http;

 public static readonly Uri _baseAddress = new Uri("http://localhost:21853/"); // // GET: /Product/ public ActionResult Index() { return View(); } public JsonResult GetProductList() { List productList = null; Uri address = new Uri(_baseAddress, "/api/products"); using (var httpClient = new HttpClient()) { var response = httpClient.GetAsync(address).Result; if (response.IsSuccessStatusCode) productList = response.Content.ReadAsAsync>().Result; } return Json(productList, JsonRequestBehavior.AllowGet); } 

 @{ Layout = null; } 
Get Product List

 $('#btnGetProductList').click(function () { $.ajax({ url: '/Product/GetProductList', type: 'GET', dataType: 'json' }).success(function (result) { DisplayProductList(result); }).error(function (data) { alert(data); }); }); // Display product list function DisplayProductList(result) { var productTable = $(""); var productTableTitle = $("Product IDProduct NamePriceCountDescription"); productTableTitle.appendTo(productTable); for (var i = 0; i < result.length; i++) { var productTableContent = $("" + result[i].ProductID + "" + result[i].ProductName + "" + result[i].Price + "" + result[i].Count + "" + result[i].Description + ""); productTableContent.appendTo(productTable); } $('#products').html(productTable); } 

 public JsonResult GetSingleProduct(int id) { Uri address = new Uri(_baseAddress, "/api/products/" + id); Product product = null; using (var httpClient = new HttpClient()) { var response = httpClient.GetAsync(address).Result; if (response.IsSuccessStatusCode) product = response.Content.ReadAsAsync().Result; } return Json(product, JsonRequestBehavior.AllowGet); } 

Get Single Product
Product ID:  

 $('#btnGetProduct').click(function () { if ($('#txtSearchProductID').val().trim() != "") { $.ajax({ url: '/Product/GetSingleProduct?id=' + $('#txtSearchProductID').val(), type: 'GET', dataType: 'json' }).success(function (result) { if (result != null) { $('#product').html("Product ID: " + result.ProductID + "
" + "Product Name: " + result.ProductName + "
" + "Count: " + result.Count + "
" + "Price: " + result.Price + " 
" + "Description: " + result.Description); } else { $('#product').html(''); } }).error(function (data) { alert(data); }); } });

 public JsonResult CreateProduct(Product product) { bool createSuccess = true; Uri address = new Uri(_baseAddress, "/api/products"); using(var httpClient=new HttpClient()) { var response = httpClient.PostAsJsonAsync(address, product).Result; if (!response.IsSuccessStatusCode) createSuccess = false; } return Json(createSuccess, JsonRequestBehavior.AllowGet); } 

Create Product
 Product Name:
Count:
 Price:
 Description:
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