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;
    }

}