package code;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

import com.alipay.api.AlipayApiException;

import com.alipay.api.AlipayClient;

import com.alipay.api.DefaultAlipayClient;

import com.alipay.api.request.AlipayDataDataserviceBillDownloadurlQueryRequest;

import com.alipay.api.response.AlipayDataDataserviceBillDownloadurlQueryResponse;

public class AlipayBill {

     //初始化实例请求对象

    public static String APP_ID = "2017000000000000";   //自己的商户appid

   // RSA签名方式使用算法：SHA1withRSA。 注意此处是RSA 的私钥 是Java版本格式的 如果是用.NET 就要转换为.NET版本的格式

    public static String APP_PRIVATE_KEY = "ghjjjjffjjjjkytyyddfsgsaetertrtr..............";

   //RSA2签名方式使用算法：SHA256withRSA。
    //public static String APP_PRIVATE_KEY ="+zA3RJzhtiL4MIHks4GD++6RuQ/";

    //公钥是可以公用的在公共平台配置的 .NET和Java语言的都可以共用。但是要区别 RSA或者是RSA2的公钥签名

      public static String ALIPAY_PUBLIC_KEY = "/fEsraprwCtzvzQETrNRwmZkh2QhUrCmZYI";

      //rsa2

      // public static String ALIPAY_PUBLIC_KEY ="/aFKRhSS5fHChIzjpMrl";

    //开放平台SDK封装了签名实现，只需在创建DefaultAlipayClient对象时，设置请求网关(gateway)，应用id(app_id)，应用私钥(private_key)，编码格式(charset)，支付宝公钥(alipay_public_key)，签名类型(sign_type)即可，报文请求时会自动进行签名。

    public static AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", "GBK",

                    ALIPAY_PUBLIC_KEY,"RSA");  //注意在此处用的RSA签名类型参数 如果是RSA2的就要传RSA2参数
     public static String  post_bill_date="2017-06-20"  ;


    /**

     * @param args

     */

    public static void main(String[] args) {

        // TODO Auto-generated method stub

        bill_download_url ();//下载对账单接口

    }

    public static void  bill_download_url (){

      //"  \"bill_date\":\"2017-07-26\""+      时间参数  "+post_bill_date+"
    //账单时间：日账单格式为yyyy-MM-dd，月账单格式为yyyy-MM。 
    //账单参数类型 值 signcustomer  包含 是账务明细的 也有业务明细的  trade 只有 是业务明细的   在这里特别注意下 以免被挖坑了 看官网的容易坑

        AlipayDataDataserviceBillDownloadurlQueryRequest request = new AlipayDataDataserviceBillDownloadurlQueryRequest();

                request.setBizContent("{" +

                "  \"bill_type\":\"trade\"," +

                "  \"bill_date\":\"2017-07-26\""+

                "}");

                AlipayDataDataserviceBillDownloadurlQueryResponse response = null;

               try {

                       response = alipayClient.execute(request);

                       System.out.println(response.getBillDownloadUrl());   

               }

               catch (AlipayApiException e)

               {

                       e.printStackTrace();

               }

       //调用成功，则处理业务逻辑

       if(response.isSuccess())

         {

         //将接口返回的对账单下载地址传入urlStr

         String urlStr=response.getBillDownloadUrl();

        //指定希望保存的文件路径

         String filePath = "D:\\Users\\fund_bill_20170726.csv.zip";

         URL url = null;

         HttpURLConnection httpUrlConnection = null;

         InputStream fis = null;

         FileOutputStream fos = null;

         try {

             url = new URL(urlStr);

             httpUrlConnection = (HttpURLConnection) url.openConnection();

             httpUrlConnection.setConnectTimeout(5 * 1000);

             httpUrlConnection.setDoInput(true);

             httpUrlConnection.setDoOutput(true);

             httpUrlConnection.setUseCaches(false);

             httpUrlConnection.setRequestMethod("GET");

             httpUrlConnection.setRequestProperty("CHARSET", "UTF-8");

             httpUrlConnection.connect();

             fis = httpUrlConnection.getInputStream();

             byte[] temp = new byte[1024];

             int b;

             fos = new FileOutputStream(new File(filePath));

             while ((b = fis.read(temp)) != -1) {

                 fos.write(temp, 0, b);

                 fos.flush();

             }

         } catch (MalformedURLException e) {

             e.printStackTrace();

         } catch (IOException e) {

             e.printStackTrace();

         } finally {

             try {

                 if(fis!=null) fis.close();

                 if(fos!=null) fos.close();

                 if(httpUrlConnection!=null) httpUrlConnection.disconnect();

             } catch (IOException e) {

                 e.printStackTrace();

             }

         } 

         }

       }

}