angularjs呼叫Web API

2018-06-22 06:16:57来源：未知阅读 ()

今早有分享一篇《创建Web API并使用》http://www.cnblogs.com/insus/p/7771428.html 接下来，我再分享一篇，怎样在angularjs去呼叫Web API。

定义一个mode:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Insus.NET.Models
{
    public class GarbageClassification
    {
        private string _ClassificationName;

        public string ClassificationName
        {
            get { return _ClassificationName; }
            set { _ClassificationName = value; }
        }
    }
}

Source Code

添加一个实体类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Insus.NET.Models;

namespace Insus.NET.Entities
{
    public class DataEntity
    {
        public List<GarbageClassification> GetDatas()
        {
            return new List<GarbageClassification>(){
                new GarbageClassification(){ ClassificationName="废纸"},
                new GarbageClassification(){ ClassificationName="塑料"},
                new GarbageClassification(){ ClassificationName="玻璃"},
                new GarbageClassification(){ ClassificationName="金属物"},
                new GarbageClassification(){ ClassificationName="布料"}
            };
        }
    }
}

Source Code

如果你的数据是来自数据库，那你需要修改这个实体类，修改其中的代码，去数据库读取数据。

现在，我们需要创建Web API:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using Insus.NET.Models;
using Insus.NET.Entities;


namespace Insus.NET.Apis
{
    public class GarbageApiController : ApiController
    {

        [Route("api/GarbageApi/GetClassifications")]
        [HttpPost]
        public List<GarbageClassification> GetClassifications()
        {
            DataEntity de = new DataEntity();           
            return de.GetDatas();
        }
    }
}

Source Code

OK，model,Entity和API均准备好了。下面是在前端使用angularjs去呼叫刚才写好的API。

Html:

angularjs代码，其实跟jQuery的ajax call差不多一样：

 var oApp = angular.module('GarbageApp', [])
        oApp.controller('GarbageCtrl', function ($scope, $http) {
            var obj = {};

            $http({
                method: 'POST',
                url: '/api/GarbageApi/GetClassifications',
                dataType: 'json',
                headers: {
                    'Content-Type': 'application/json; charset=utf-8'
                },
                data: JSON.stringify(obj),
            }).then(function (response) {
                $scope.Classifications = response.data;
            });
        });