淘宝API客户端调用接口demo

有兴趣开发阿里软件的朋友来看了，这是一个官方demo：基于java语言的，用淘宝API客户端1.0版本，调用接口taobao.items.onsale.get，获取卖家出售中的商品列表 
代码如下： 

/**
 *
 */
package com.taobao.api.demo.onsale;

import java.io.IOException;
import java.net.URLEncoder;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.taobao.api.TaobaoApiException;
import com.taobao.api.TaobaoJsonRestClient;
import com.taobao.api.TaobaoRestClient;
import com.taobao.api.model.ItemsGetResponse;
import com.taobao.api.model.ItemsOnSaleGetRequest;

/**
 * @version 2008-10-29
 * @author <a href="mailto:[email protected]">zixue</a>
 *
 */
public class MainServlet extends HttpServlet {
    private static final transient Log log = LogFactory
            .getLog(MainServlet.class);

    /**
     *
     */
    private static final long serialVersionUID = 8839099738909766274L;

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        String appkey = req.getParameter("appkey");
        String secret = req.getParameter("secret");
        if (log.isDebugEnabled()) {
            log.debug(appkey + ":" + secret);
        }
        if (appkey != null && secret != null) {
            try {
            //生成客户端实例
                TaobaoRestClient client = new TaobaoJsonRestClient(appkey,secret);
                //淘宝卖家的出售的商品列表
                ItemsOnSaleGetRequest tbReq = new ItemsOnSaleGetRequest()
                        .withFields("iid,title,price,list_time,num")
                        .withPageNo(1)
                        .withPageSize(20);
                // use appkey as session_id
                ItemsGetResponse tbRsp = client.itemsOnSaleGet(tbReq, appkey);//搜索单个商品信息的Request请求
                if (log.isDebugEnabled()) {
                    log.debug(tbRsp.getBody());
                }
                //如果接口调用成功
                if (!tbRsp.isSuccess()) {
                    if (tbRsp.isRedirect()) {
                        req.setAttribute("url",
                                         tbRsp.getRedirectUrl(URLEncoder
                                                              .encode
                                                              (req.getRequestURL()
                                                                  .append('?')
                                                                  .append("appkey=")
                                                                  .append(appkey)
                                                                  .append("&secret=")
                                                                  .append(secret)
                                                                  .toString(),"utf-8")
                                                             )
                                        );
                    } else {
                        req.setAttribute("msg", tbRsp.getMsg());
                    }
                } else {
                    req.setAttribute("items", tbRsp.getItems());
                }
            } catch (TaobaoApiException e) {
                throw new ServletException(e);
            }
        }
        req.getRequestDispatcher("main.jsp").forward(req, resp);
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        doPost(req, resp);
    }

}