Android开发日记（四）

在服务器端数据库新建一个表ad

在DataInfo.edxm模型中点击从数据库更新模型，发布。

就新建了一个实体ad

然后新建cs文件

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 using System.Web.Mvc;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
 namespace WebJSON.Controllers
 {
     public class AdShowController:Controller
     {
         DataInfo storedb = new DataInfo();
         public JArray Index(int adid)
         {
             IEnumerable<ad> ad;
             ad = storedb.ad.Where(u => u.adid == adid);
             string adjson = JsonConvert.SerializeObject(ad);
             JArray adJArray = JArray.Parse(adjson);
 
             return adJArray;
 
         }
     }
 }

然后发布就可以在网页端看到传递的JSON数组对象。

http://59.78.93.208:9092/AdShow?adid=1

在Android端编写service文件

 public class AdshowService {
     public JSONArray getAdshowDetails(String adid)
     {
         String url="http://59.78.93.208:9092/AdShow?adid="+adid+"";
         HttpClient client = new DefaultHttpClient();
         client.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 3000);
         client.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 3000 );
         HttpPost request;
         try {
             request = new HttpPost(new URI(url));
             HttpResponse response = client.execute(request);
             if (response.getStatusLine().getStatusCode() == 200) {
                 HttpEntity entity = response.getEntity();
                 if (entity != null) {
                     String out = EntityUtils.toString(entity);
                     JSONArray jsonArray=new JSONArray(out);
                     return jsonArray;
                 }
             }
         } catch (Exception e) {
             e.printStackTrace();
             return null;
         }
         return null;
     }
 
 }