<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@page import="com.yc.sdk.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 AlipayTradeRefundRequest alipayRequest = new AlipayTradeRefundRequest(); //商户订单号，商户网站订单系统中唯一订单号 String out_trade_no = new String(request.getParameter("WIDTRout_trade_no").getBytes("ISO-8859-1"),"UTF-8"); //支付宝交易号 String trade_no = new String(request.getParameter("WIDTRtrade_no").getBytes("ISO-8859-1"),"UTF-8"); //请二选一设置 //需要退款的金额，该金额不能大于订单金额，必填 String refund_amount = new String(request.getParameter("WIDTRrefund_amount").getBytes("ISO-8859-1"),"UTF-8"); //退款的原因说明 String refund_reason = new String(request.getParameter("WIDTRrefund_reason").getBytes("ISO-8859-1"),"UTF-8"); //标识一次退款请求，同一笔交易多次退款需要保证唯一，如需部分退款，则此参数必传 String out_request_no = new String(request.getParameter("WIDTRout_request_no").getBytes("ISO-8859-1"),"UTF-8"); alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\"," + "\"trade_no\":\""+ trade_no +"\"," + "\"refund_amount\":\""+ refund_amount +"\"," + "\"refund_reason\":\""+ refund_reason +"\"," + "\"out_request_no\":\""+ out_request_no +"\"}"); //请求 String result = alipayClient.execute(alipayRequest).getBody(); //输出 out.println(result); %>