java接入支付宝接口包含源码
如今不少项目都需要接入支付功能，比如租房网站，销售网站等，那么我们就得熟悉支付宝的java接口。
首先我们需要在蚂蚁金服开放平台获取，你应用所需要的APPID，秘钥跟公钥，测试用的沙箱账号，下载沙箱支付宝。生产环境下的代码跟测试环境的代码没有什么区别，只是测试环境的支付宝是金额是无限的，生产环境是需要企业号并且支付收费。
其次我们需要配置一个叫AlipayConfig.java的配置文件类，该类含有appid，秘钥跟公钥，还有服务器异步通知页面路径，支付成功的跳转路径。
对应的java代码
@RequestMapping(value="/gethouse",method=RequestMethod.POST)//获取要租的房子 public String getOneHouse(HttpServletRequest request) { HttpSession session = request.getSession(); //判断是否登录 String id=(String) session.getAttribute("id"); if(StringUtil.isEmpty(id)) return "login"; Calendar now = Calendar.getInstance(); //获取提交信息 String customer_id=request.getParameter("customer_id"); String house_id=request.getParameter("house_id"); String description=request.getParameter("description"); String starttime=request.getParameter("starttime"); System.out.println(customer_id+house_id+description+starttime); Date d=new Date(); String t=String.valueOf(now.get(Calendar.YEAR))+String.valueOf(now.get(Calendar.MONTH)+1) +String.valueOf(now.get(Calendar.DAY_OF_MONTH)+1)+String.valueOf(now.get(Calendar.HOUR_OF_DAY)) +String.valueOf(now.get(Calendar.MINUTE))+String.valueOf(now.get(Calendar.SECOND)) ;
session.setAttribute("hid", house_id); session.setAttribute("starttime", starttime); String WIDout_trade_no=t;//商户订单号 ： System.out.println(WIDout_trade_no); String WIDsubject=house_id;//订单名称 String WIDtotal_amount="200";//订单价格 String WIDbody="商品描述";//商品描述 request.setAttribute("WIDout_trade_no", WIDout_trade_no);//WIDout_trade_no request.setAttribute("WIDsubject",WIDsubject); request.setAttribute("WIDtotal_amount", WIDtotal_amount); request.setAttribute("WIDbody", WIDbody); return "pay"; }
对应的jsp代码：pay.jsp:
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ page import="com.alipay.config.*"%> <%@ page import="com.alipay.api.*"%> <%@ page import="com.alipay.api.request.*"%> <% //获得初始化的AlipayClient AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type); //设置请求参数 AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest(); alipayRequest.setReturnUrl(AlipayConfig.return_url); alipayRequest.setNotifyUrl(AlipayConfig.notify_url);
String out_trade_no =(String) request.getAttribute("WIDout_trade_no");
System.out.println(out_trade_no); //付款金额，必填 String total_amount =(String) request.getAttribute("WIDtotal_amount"); //订单名称，必填 String subject =(String) request.getAttribute("WIDsubject"); //商品描述，可空 String body = (String) request.getAttribute("WIDbody"); alipayRequest.setBizContent("{"out_trade_no":""+ out_trade_no +""," + ""total_amount":""+ total_amount +""," + ""subject":""+ subject +""," + ""body":""+ body +""," + ""product_code":"FAST_INSTANT_TRADE_PAY"}"); //若想给BizContent增加其他可选请求参数，以增加自定义超时时间参数timeout_express来举例说明 //alipayRequest.setBizContent("{"out_trade_no":""+ out_trade_no +""," // + ""total_amount":""+ total_amount +""," // + ""subject":""+ subject +""," // + ""body":""+ body +""," // + ""timeout_express":"10m"," // + ""product_code":"FAST_INSTANT_TRADE_PAY"}"); //请求参数可查阅【电脑网站支付的API文档-alipay.trade.page.pay-请求参数】章节 //请求 String result = alipayClient.pageExecute(alipayRequest).getBody(); //System.out.println(out_trade_no); //System.out.println(total_amount); //输出 out.println(result); %> <body> </body> </html>