技术_支付宝在线支付部分java代码(转载)
/** * 根据订单生成支付宝接口URL. * @param httpRequest * @param order 订单实例 * @return * @throws Exception */ public static String makeOrderAlipayUrl(HttpServletRequest httpRequest,Order order) throws Exception { HashMap hm = new HashMap(); hm.put("_input_charset",httpRequest.getCharacterEncoding());//采用相同的编码方式 hm.put("body","您在www.xxx.com上的订单");//填写在跳到支付宝页面上显示的付款内容信息 hm.put("discount","-5");//填写折扣信息 -5表示抵扣5元 hm.put("logistics_fee","10");//物流费用 hm.put("logistics_payment","BUYER_PAY");//物流费用支付人 BUYER_PAY=买家支付物流费用 hm.put("logistics_type","EXPRESS");//物流方式 hm.put("notify_url","http://www.xxx.com/notifyurl.jsp");//客户付款后,支付宝调用的页面 hm.put("out_trade_no",order.getId());//外部交易号,最好具有唯一性,在获取支付宝发来的付款信息时使用. hm.put("partner",partnerId);//partnerId(合作伙伴ID) hm.put("agent",partnerId);//partnerId(合作伙伴ID) hm.put("payment_type","1");//支付类型 1=商品购买,2=服务购买,... hm.put("price","105.30");//订单金额信息 hm.put("quantity","1");//订单商品数量,一般都是写1,它是按照整个订单包来计算 hm.put("return_url","http://www.xxx.com/ReturnUrl.jsp");//客户付款成功后,显示给客户的页面 hm.put("seller_email","alipay@xxx.com");//你的支付宝账户email hm.put("service","create_direct_pay_by_user");//create_direct_pay_by_user=直接付款,trade_create_by_buyer 担保付款 hm.put("subject","www.xxx.com的订单");//填写在跳到支付宝页面上显示的付款标题信息 String payGateway = "https://www.alipay.com/cooperate/gateway.do?";//跳转到支付宝的url头 return makeUrl(hm,securityCode,httpRequest.getCharacterEncoding(),payGateway);//securityCode(安全码) } /** * 根据传入的参数生成alipay的支付URL * @param hm 参数值 * @param securityCode 安全码 * @param charset 编码 * @param payGateway 支付宝gateway * @return */ public static String makeUrl(HashMap hm,String securityCode,String charset,String payGateway) throws Exception{ List keys = new ArrayList(hm.keySet()); Collections.sort(keys);//支付宝要求参数必须按字母排序 StringBuffer content = new StringBuffer(); for (int i = 0; i < keys.size(); i++) { content.append((String) keys.get(i)); content.append("="); content.append((String) hm.get((String) keys.get(i))); if (i != keys.size() - 1) { content.append("&"); } } content.append(securityCode); String sign = md5(content.toString(),charset); content.delete(0,content.length()); content.append(payGateway); for (int i = 0; i < keys.size(); i++) { content.append(keys.get(i)); content.append("="); content.append(URLEncoder.encode((String) hm.get(keys.get(i)), charset)); content.append("&"); } content.append("&sign_type=MD5"); keys.clear(); keys = null; return content.toString(); } /** * 生成md5编码字符串. * @param str 源字符串 * @param charset 编码方式 * @return * */ public static String md5(String str,String charset) { if (str == null) return null; char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; MessageDigest md5MessageDigest = null; byte[] md5Bytes = null; char md5Chars[] = null; byte[] strBytes = null; try { strBytes = str.getBytes(charset); md5MessageDigest = MessageDigest.getInstance("MD5"); md5MessageDigest.update(strBytes); md5Bytes = md5MessageDigest.digest(); int j = md5Bytes.length; md5Chars = new char[j * 2]; int k = 0; for (int i = 0; i < j; i++) { byte md5Byte = md5Bytes; md5Chars[k++] = hexDigits[md5Byte >>> 4 & 0xf]; md5Chars[k++] = hexDigits[md5Byte & 0xf]; } return new String(md5Chars); } catch (NoSuchAlgorithmException e) { //Log.output(e.toString(), Log.STD_ERR); return null; } catch (UnsupportedEncodingException e) { //Log.output(e.toString(), Log.STD_ERR); return null; } finally { md5MessageDigest = null; strBytes = null; md5Bytes = null; } }
/* *notify页面 */ <%@ page contentType="text/html;charset=UTF-8"%>
<%@ page import="com.soft4j.AlipayMgr"%><% String ret = AlipayMgr.insert(request); if(ret==null){ out.print("success");//成功接收支付宝发来的付款信息 }else{ out.print("fail");//出错 } %>
1 /* 2 * 系统处理页面订单数据 3 * 4 */ 5 package com.soft4j; 6 import java.sql.Connection; 7 import java.sql.SQLException; 8 import java.util.Enumeration; 9 import java.util.Vector; 10 import javax.servlet.http.HttpServletRequest; 11 /** 12 * 支付宝付款通知接口. 13 * 14 * @author stephen 15 * @version 1.0.0 16 */ 17 public final class NotifyUrlMgr { 18 public static String insert(HttpServletRequest httpRequest) { 19 //定义变量和进行必要的初始化工作 20 Enumeration parameterNames = null; 21 String parameterName = null; 22 String parameterValue = null; 23 int count = 0; 24 Vector[] params = null; 25 Vector vParameterName = new Vector(); 26 Vector vParameterValue = new Vector(); 27 try { 28 String orderId = httpRequest.getParameter("out_trade_no");//订单号 29 if(orderId==null||"".equals(orderId)) orderId="-1"; 30 parameterNames = httpRequest.getParameterNames(); 31 boolean isPrint = false; 32 while (parameterNames.hasMoreElements()) {//循环收取支付宝发来的所有参数信息 33 parameterName = (String) parameterNames.nextElement(); 34 parameterValue = httpRequest.getParameter(parameterName); 35 if(parameterValue==null) parameterValue=""; 36 vParameterName.add(parameterName); 37 vParameterValue.add(parameterValue); 38 count++; 39 } 40 //这里添加对收到信息的处理:一般是将这些信息存入数据库,然后对客户的订单进行处理. 41 return null; 42 } catch (Exception e) { 43 return e.toString(); 44 } finally { 45 } 46 } 47 }