淘宝Open API初学者入门教程

复制package org.openapi.taobao;

import java.security.MessageDigest;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import java.util.Set;

import java.util.TreeSet;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.NameValuePair;

import org.apache.commons.httpclient.methods.PostMethod;

public class TaobaoOpenApiDemo {

 /**

     * 调用淘宝的taobao.trade.get demo，

     * 运行该示例时，你需要将appId,appSecret,tid

     * 这三个参数替换为你自己的，就可以运行该demo

     *

     * 在***次运行时 会提醒你登录淘宝进行授权，

     * 授权成功后 再次运行该demo就可以获取指定交易的信息 呵呵

     *

     * 这只是一个简单的demo，只是为初学者提供方便

     * 有了这个原型 大家就可以各显自己的神通了

     */

    public static void main(String[] args) {

       // 淘宝Open API平台即SIP平台的入口

       String sipRequestUrl = "http://sip.alisoft.com/sip/rest";

       String appId = "****"; // 在阿里软件平台注册的应用ID,请使用你自己的应用ID

       String appSecret = "******"; // 注册的应用的密钥，请使用你自己应用的密钥

       String taobaoApiName = "taobao.trade.get"; // 交易类api

       String sessionId = "1234567";//sessionId是isv应用自己生成的字符串

//确保每个使用该应用的用户各自的sessionId各不相同

       SimpleDateFormat formater = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

       Map params = new HashMap();

       params.put("sip_appkey", appId);

       params.put("sip_apiname", taobaoApiName);

       params.put("sip_timestamp", formater.format(new Date()));

       params.put("sip_sessionid", sessionId);

       params.put("fields", "seller_nick,buyer_nick,title,type,created,sid");

       params.put("tid", "******"); //请设置你要查询的交易号

       params.put("format", "xml");

       params.put("v", "1.0");

       params.put("sip_sign", getSign(appSecret, params));

       String result = requestOpenApi(sipRequestUrl, params);

       if (result != null && result.startsWith("sip_isp_loginurl:")) {

           result = result.replaceAll("&", "&");

           System.out.println("打开浏览器，访问下面的URL进行用户授权，授权成功后" +

                  "，再次运行该类就可以调用api获取交易信息");

           System.out.println(result.substring("sip_isp_loginurl:".length()));

       } else if (result != null)

           System.out.println(result);

    }

    /**

     * 请求淘宝Open API服务

     * @param url 服务集群平台入口

     * @param params 请求参数

     * @return 请求结果

     */

    public static String requestOpenApi(String url, Map params) {

       HttpClient client = new HttpClient();

       PostMethod postMethod = new PostMethod(url);

       try {

           NameValuePair[] postData = new NameValuePair[params.size()];

           Iterator iters = params.keySet().iterator();

           int i = 0;

           while (iters.hasNext()) {

              String key = (String) iters.next();

              postData[i] = new NameValuePair(key, params.get(key).toString());

              i++;

           }

           postMethod.setRequestBody(postData);

           client.executeMethod(postMethod);

           String resultCode = postMethod.getResponseHeader("sip_status")

                  .getValue();

           if (resultCode == null || ("".equals(resultCode)))

              return null;

           else if ("1004".equals(resultCode))

              return "sip_isp_loginurl:"

                     + postMethod.getResponseHeader("sip_isp_loginurl")

                            .getValue();

           else if (!"9999".equals(resultCode))

              return resultCode

                     + ":"

                     + postMethod.getResponseHeader("sip_errormessage")

                            .getValue();

           return postMethod.getResponseBodyAsString();

       } catch (Exception ex) {

           ex.printStackTrace();

       } finally {

           if (postMethod != null)

              postMethod.releaseConnection();

       }

       return null;

    }

    /**

     * 对所有参数进行签名

     * @param secret APP ID对应的密钥

     * @param params 请求中所有的参数

     * @return 签名

     */

    public static String getSign(String secret, Map params) {

       if (secret == null || "".equals(secret) || params == null)

           throw new RuntimeException(

                  "secret or params is null or blank, please check");

       StringBuilder sb = new StringBuilder().append(secret);

       String result = null;

       try {

           Set sortedKeys = new TreeSet();

           sortedKeys.addAll(params.keySet());

           for (String key : sortedKeys)

              sb.append(key).append(params.get(key));

           MessageDigest md = MessageDigest.getInstance("MD5");

           result = byteTohex(md.digest(sb.toString().getBytes("utf-8")));

       } catch (Exception e) {

           throw new RuntimeException(e);

       }

       return result;

    }

    public static String byteTohex(byte[] b) {

       StringBuffer sb = new StringBuffer();

       String stmp = "";

       for (int n = 0; n < b.length; n++) {

           stmp = (java.lang.Integer.toHexString(b[n] & 0XFF));

           if (stmp.length() == 1)

              sb.append("0").append(stmp);

           else

              sb.append(stmp);

       }

       return sb.toString().toUpperCase();

    }

}

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