详解java集成支付宝支付接口（JSP+支付宝20160912）

 
  <% 
  CsPay pay=new CsPay(); 
  pay.doPost(request, response); 
  %> 
  

package com.luozhuang.alipay; 
 
import java.util.HashMap; 
import java.util.Map; 
 
import com.alibaba.fastjson.JSON; 
import com.alipay.api.AlipayApiException; 
import com.alipay.api.AlipayClient; 
import com.alipay.api.DefaultAlipayClient; 
import com.alipay.api.internal.util.StringUtils; 
import com.alipay.api.request.AlipayTradeCancelRequest; 
import com.alipay.api.request.AlipayTradePayRequest; 
import com.alipay.api.request.AlipayTradePrecreateRequest; 
import com.alipay.api.request.AlipayTradeQueryRequest; 
import com.alipay.api.request.AlipayTradeRefundRequest; 
import com.alipay.api.request.AlipayTradeWapPayRequest; 
import com.alipay.api.response.AlipayTradeCancelResponse; 
import com.alipay.api.response.AlipayTradePayResponse; 
import com.alipay.api.response.AlipayTradePrecreateResponse; 
import com.alipay.api.response.AlipayTradeQueryResponse; 
import com.alipay.api.response.AlipayTradeRefundResponse; 
 
public class AlipayClientFactory { 
  private static final AlipayClient client = new DefaultAlipayClient( 
      Config.URL, Config.APPID, Config.RSA_RRIVATE_KEY, Config.FORMAT, 
      Config.CHARSET, Config.ALIPAY_PUBLIC_KEY); 
 
  public static AlipayClient getAlipayClientInstance() { 
    return client; 
  } 
 
  /** 
   * appAuthToken 
   * 如ISV代替商家调用当面付接口，需将商户授权后获取的app_auth_token带上；如商家申请当面付自己调用，则传null bizContent 
   * JSON格式 商户的请求参数 
   */ 
 
  // 手机网页支付 网站支付 
  public String ydAndPc_Pay(Map maps) 
      throws AlipayApiException { 
    AlipayTradeWapPayRequest alipayRequest = new AlipayTradeWapPayRequest(); 
    String NotifyUrl = maps.get("NotifyUrl"); 
    String ReturnUrl = maps.get("ReturnUrl"); 
    // 后台回调 
    if (!StringUtils.isEmpty(NotifyUrl)) { 
      alipayRequest.setNotifyUrl(NotifyUrl); 
      // bizContent 中不需要 公共参数 
      maps.remove("NotifyUrl"); 
    } 
    // 页面回调 
    if (!StringUtils.isEmpty(ReturnUrl)) { 
      alipayRequest.setReturnUrl(ReturnUrl); 
      // bizContent 中不需要 公共参数 
      maps.remove("ReturnUrl"); 
    } 
    String bizCon = JSON.toJSONString(maps); 
    alipayRequest.setBizContent(bizCon); 
    String form = ""; 
    try { 
      form = AlipayClientFactory.getAlipayClientInstance() 
          .pageExecute(alipayRequest).getBody(); 
    } catch (AlipayApiException e) { 
      form = "err"; 
      e.printStackTrace(); 
    } // 调用SDK生成表单 
    return form; 
  } 
 
  // 查询订单状态 
  public AlipayTradeQueryResponse query(String appAuthToken, String bizContent) 
      throws AlipayApiException { 
    AlipayTradeQueryRequest request = new AlipayTradeQueryRequest(); 
    request.putOtherTextParam("app_auth_token", appAuthToken); 
    request.setBizContent(bizContent); 
    return AlipayClientFactory.getAlipayClientInstance().execute(request); 
  } 
 
  // 条码支付 
  public AlipayTradePayResponse pay(String appAuthToken, String bizContent) 
      throws AlipayApiException { 
    AlipayTradePayRequest request = new AlipayTradePayRequest(); 
    request.putOtherTextParam("app_auth_token", appAuthToken); 
    request.setBizContent(bizContent); 
    return AlipayClientFactory.getAlipayClientInstance().execute(request); 
  } 
 
  // 扫码支付 
  public AlipayTradePrecreateResponse precreate(String appAuthToken, 
      String bizContent) throws AlipayApiException { 
    AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest(); 
    request.putOtherTextParam("app_auth_token", appAuthToken); 
    request.setBizContent(bizContent); 
    return AlipayClientFactory.getAlipayClientInstance().execute(request); 
  } 
 
  // 订单撤销 
  public AlipayTradeCancelResponse cancel(String appAuthToken, 
      String bizContent) throws AlipayApiException { 
    AlipayTradeCancelRequest request = new AlipayTradeCancelRequest(); 
    request.putOtherTextParam("app_auth_token", appAuthToken); 
    request.setBizContent(bizContent); 
    return AlipayClientFactory.getAlipayClientInstance().execute(request); 
  } 
 
  // 申请退款 
  public AlipayTradeRefundResponse refund(String appAuthToken, 
      String bizContent) throws AlipayApiException { 
    AlipayTradeRefundRequest request = new AlipayTradeRefundRequest(); 
    request.putOtherTextParam("app_auth_token", appAuthToken); 
    request.setBizContent(bizContent); 
    return AlipayClientFactory.getAlipayClientInstance().execute(request); 
  } 
 
  @SuppressWarnings("unused") 
  public static void main(String[] args) { 
    AlipayClientFactory c = new AlipayClientFactory(); 
    try { 
      Map map = new HashMap(); 
      map.put("out_trade_no", "20160914113218"); 
      String bizContent = JSON.toJSONString(map); 
      System.err.println(bizContent); 
      AlipayTradeQueryResponse rp = c.query(null, bizContent); 
    } catch (AlipayApiException e) { 
      e.printStackTrace(); 
    } 
  } 
} 

package com.luozhuang.alipay; 
 
public class Config { 
  // 开发者应用私钥。java配置PKCS8格式，PHP/.Net语言配置rsa_private_key.pem文件中原始私钥。 
  public static final String RSA_RRIVATE_KEY ="luozhuang"; 
  // 接口请求网关。当面付支付、查询、退款、撤销接口中为固定值 
  public static final String URL = "https://openapi.alipaydev.com/gateway.do"; 
  // 商户应用APPID，只要您的应用中包含当面付接口且是开通状态，就可以用此应用对应的appid。开发者可登录开放平台-管理中心-对应应用中查看 
  public static final String APPID = "luozhuang"; 
  // 编码字符集。默认 utf-8 
  public static final String CHARSET = "utf-8"; 
  // 返回格式。默认json 
  public static final String FORMAT = "json"; 
  // 支付宝公钥，用于获取同步返回信息后进行验证，验证是否是支付宝发送的信息。 
  public static final String ALIPAY_PUBLIC_KEY = "luozhuang"; 
} 

package com.luozhuang.alipay; 
 
 
import java.io.IOException; 
import java.util.HashMap; 
import java.util.Map; 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import com.alipay.api.AlipayApiException; 
 
/** 
 * Servlet implementation class CsPay 
 */ 
public class CsPay extends HttpServlet { 
  private static final long serialVersionUID = 1L; 
 
  /** 
   * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse 
   *   response) 
   */ 
  public void doGet(HttpServletRequest request, 
      HttpServletResponse response) throws ServletException, IOException { 
    doPost(request, response); 
  } 
 
  /** 
   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse 
   *   response) 
   */ 
  public void doPost(HttpServletRequest request, 
      HttpServletResponse response) throws ServletException, IOException { 
    // 参数目前都是 写死的 根据业务需求 写活 
    Map maps = new HashMap(); 
    maps.put("out_trade_no", UtilDate.getOrderNum()); 
    maps.put("total_amount", "0.01"); 
    maps.put("subject", "Iphone6 16G"); 
    maps.put("body", "Iphone6 16G"); 
    maps.put("product_code", "QUICK_WAP_PAY"); 
    // 下面两个 参数的 KEY 不要乱写 要和工具类里面对应 
    maps.put("ReturnUrl", "http://domain.com/CallBack/return_url.jsp"); 
    maps.put("NotifyUrl", "http://domain.com/CallBack/notify_url.jsp"); 
    try { 
      AlipayClientFactory ali = new AlipayClientFactory(); 
      String form = ali.ydAndPc_Pay(maps); 
      if (!form.equals("err")) { 
        response.setContentType("text/html;charset=utf-8"); 
        response.getWriter().write(form);// 直接将完整的表单html输出到页面 
        response.getWriter().flush(); 
      } 
    } catch (AlipayApiException e) { 
      e.printStackTrace(); 
    } 
  } 
} 

package com.luozhuang.alipay; 
 import java.util.ArrayList; 
import java.util.Collections; 
import java.util.List; 
import java.util.Map; 
 
public class CsUtil { 
  /** 
   * 把数组所有元素排序，并按照“参数=参数值”的模式用“&”字符拼接成字符串 
   * 
   * @param params 
   *      需要排序并参与字符拼接的参数组 
   * @return 拼接后字符串 
   */ 
  public static String createLinkString(Map params) { 
 
    List keys = new ArrayList(params.keySet()); 
    Collections.sort(keys); 
 
    String prestr = ""; 
 
    for (int i = 0; i < keys.size(); i++) { 
      String key = keys.get(i); 
      String value = params.get(key); 
 
      if (i == keys.size() - 1) {// 拼接时，不包括最后一个&字符 
        prestr = prestr + key + "=" + value; 
      } else { 
        prestr = prestr + key + "=" + value + "&"; 
      } 
    } 
 
    return prestr; 
  } 
} 

package com.luozhuang.alipay; 
import java.util.Date; 
import java.util.Random; 
import java.text.SimpleDateFormat; 
import java.text.DateFormat; 
 
/* * 
 *类名：UtilDate 
 *功能：自定义订单类 
 *详细：工具类，可以用作获取系统日期、订单编号等 
 *版本：3.3 
 *日期：2012-08-17 
 *说明： 
 *以下代码只是为了方便商户测试而提供的样例代码，商户可以根据自己网站的需要，按照技术文档编写,并非一定要使用该代码。 
 *该代码仅供学习和研究支付宝接口使用，只是提供一个参考。 
 */ 
public class UtilDate { 
   
  /** 年月日时分秒(无下划线) yyyyMMddHHmmss */ 
  public static final String dtLong         = "yyyyMMddHHmmss"; 
   
  /** 完整时间 yyyy-MM-dd HH:mm:ss */ 
  public static final String simple         = "yyyy-MM-dd HH:mm:ss"; 
   
  /** 年月日(无下划线) yyyyMMdd */ 
  public static final String dtShort         = "yyyyMMdd"; 
   
   
  /** 
   * 返回系统当前时间(精确到毫秒),作为一个唯一的订单编号 
   * @return 
   *   以yyyyMMddHHmmss为格式的当前系统时间 
   */ 
  public static String getOrderNum(){ 
    Date date=new Date(); 
    DateFormat df=new SimpleDateFormat(dtLong); 
    return df.format(date); 
  } 
   
  /** 
   * 获取系统当前日期(精确到毫秒)，格式：yyyy-MM-dd HH:mm:ss 
   * @return 
   */ 
  public static String getDateFormatter(){ 
    Date date=new Date(); 
    DateFormat df=new SimpleDateFormat(simple); 
    return df.format(date); 
  } 
   
  /** 
   * 获取系统当期年月日(精确到天)，格式：yyyyMMdd 
   * @return 
   */ 
  public static String getDate(){ 
    Date date=new Date(); 
    DateFormat df=new SimpleDateFormat(dtShort); 
    return df.format(date); 
  } 
   
  /** 
   * 产生随机的三位数 
   * @return 
   */ 
  public static String getThree(){ 
    Random rad=new Random(); 
    return rad.nextInt(1000)+""; 
  } 
   
}