json这里选用了fast-json

先看服务端代码如下

package novelserver.servlet;import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import model.Novel;
import spider.BiqugeNovelPageProcesser;
import spider.BiqugeNovelPipeline;
import spider.NovelList;
import us.codecraft.webmagic.Spider;import com.alibaba.fastjson.JSON;
/*** 首页推荐* @author liangzhenghui**/
@WebServlet(urlPatterns={"/homeRecommend"})
public class HomeRecommend extends HttpServlet {private static final long serialVersionUID = 430306605309121990L;@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {doPost(req, resp);}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {//笔趣阁String url = "http://www.biquge.com/";Spider.create(new BiqugeNovelPageProcesser()).addUrl(url).addPipeline(new BiqugeNovelPipeline()).run();List<Novel> novelList = NovelList.getNovelList();//解决中文乱码问题resp.setContentType("text/html;charset=UTF-8");  //目的是为了控制浏览器的行为，即控制浏览器用UTF-8进行解码；//的目的是用于response.getWriter()输出的字符流的乱码问题，如果是response.getOutputStream()是不需要此种解决方案的；因为这句话的意思是为了将response对象中的数据以UTF-8编码后发向浏览器；resp.setCharacterEncoding("UTF-8"); PrintWriter out = resp.getWriter();out.write(JSON.toJSONString(novelList));}
}

android客户端向服务端发起请求以及接收返回数据代码如下

public static List<Novel> getHotNovelList() {List<Novel> novelList = new ArrayList<Novel>();String url = "http://192.168.1.104:8080/novel/homeRecommend";DefaultHttpClient httpclient = new DefaultHttpClient();HttpGet httpGet = new HttpGet(url);try {HttpResponse response = httpclient.execute(httpGet);novelList = JSON.parseArray(EntityUtils.toString(response.getEntity()), Novel.class);} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return novelList;}