支付宝SDK集成服务端

配置项(公共参数)

// 商户appidpublic static String APPID = "120800451448";// 私钥 pkcs8格式的public static String RSA_PRIVATE_KEY = "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCgSrIsDE9qdOFoc3Ej0wxD815zDOZ...";// 服务器异步通知页面路径 需http://或者https://格式的完整路径，不能加?id=123这类自定义参数，必须外网可以正常访问public static String notify_url = "http://xxxxx/alipay/notify_url.do";// 页面跳转同步通知页面路径 需http://或者https://格式的完整路径，不能加?id=123这类自定义参数，必须外网可以正常访问 商户可以自定义同步跳转地址public static String return_url = "xxxxx/alipay/return_url.do";// 请求网关地址public static String URL = "/gateway.do";// 编码public static String CHARSET = "UTF-8";// 返回格式public static String FORMAT = "json";// 支付宝公钥public static String ALIPAY_PUBLIC_KEY = "";// 日志记录目录public static String log_path = "D:/log";// RSA2public static String SIGNTYPE = "RSA2";

支付工具类

package com.app.utils.alipay;import java.util.Date;import java.util.HashMap;import java.util.Iterator;import java.util.Map;import javax.servlet.http.HttpServletRequest;import com.alipay.api.AlipayApiException;import com.alipay.api.AlipayClient;import com.alipay.api.DefaultAlipayClient;import com.alipay.api.domain.AlipayTradeAppPayModel;import com.alipay.api.internal.util.AlipaySignature;import com.alipay.api.request.AlipayTradeAppPayRequest;import com.alipay.api.request.AlipayTradeRefundRequest;import com.alipay.api.response.AlipayTradeAppPayResponse;import com.alipay.api.response.AlipayTradeRefundResponse;import com.app.utils.DateUtil;public class AlipayUtils {public static AlipayClient getAlipayClient(){return new DefaultAlipayClient(AlipayConfig.URL, AlipayConfig.APPID, AlipayConfig.RSA_PRIVATE_KEY, AlipayConfig.FORMAT, AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.SIGNTYPE); //获得初始化的AlipayClient}/*** 验证签名 * @param request* @return*/@SuppressWarnings("all")public static boolean rsaCheckV1(HttpServletRequest request){boolean verify_result = false;try {Map<String,String> params = new HashMap<String,String>();Map requestParams = request.getParameterMap();for (Iterator iter = requestParams.keySet().iterator(); iter.hasNext();){String name = (String) iter.next();String[] values = (String[]) requestParams.get(name);String valueStr = "";for (int i = 0; i < values.length; i++) {valueStr = (i == values.length - 1) ? valueStr + values[i]: valueStr + values[i] + ",";}//valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");params.put(name, valueStr);}verify_result = AlipaySignature.rsaCheckV1(params, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.CHARSET, "RSA2");} catch (Exception e) {e.printStackTrace();}return verify_result;}/*** 支付接口* @param out_trade_no 商户订单号* @param total_amount 金额* @param body 内容* @param subject 主题* @param request* @return*/public static String aliPrePay(String out_trade_no,String total_amount,String body,String subject,HttpServletRequest request){String orderString = null;//实例化客户端AlipayClient alipayClient = AlipayUtils.getAlipayClient();//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.app.payAlipayTradeAppPayRequest payRequest = new AlipayTradeAppPayRequest();//SDK已经封装掉了公共参数，这里只需要传入业务参数。以下方法为sdk的model入参方式(model和biz_content同时存在的情况下取biz_content)。AlipayTradeAppPayModel model = new AlipayTradeAppPayModel();model.setBody(body);//标题model.setSubject(subject);//商户订单号model.setOutTradeNo(out_trade_no);model.setTimeoutExpress("30m");//交易金额model.setTotalAmount(total_amount);//交易方式model.setProductCode(AlipayConfig.PRODUCT_CODE);payRequest.setBizModel(model);String url = request.getRequestURL().toString();String domain = url.substring(0, url.lastIndexOf("/")+1);//生产环境String notify_url= domain+"aliNotify.do";//测试环境//String notify_url = "http://XXXX/XXXX/alipay/aliNotify.do";payRequest.setNotifyUrl(notify_url);try {//这里和普通的接口调用不同，使用的是sdkExecuteAlipayTradeAppPayResponse payResponse = alipayClient.sdkExecute(payRequest);//就是orderString 可以直接给客户端请求，无需再做处理。orderString = payResponse.getBody();} catch (AlipayApiException e) {e.printStackTrace();}return orderString;}/*** 退款* @param out_trade_no 商户订单号* @param trade_no 支付宝订单流水号* @param total_amount 金额* @param refund_reason 退款原因* @return*/public static boolean refund(String out_trade_no,String trade_no,double total_amount,String refund_reason){boolean flag = false;String str = null;try {AlipayClient alipayClient = getAlipayClient();AlipayTradeRefundRequest apliRequest = new AlipayTradeRefundRequest();apliRequest.setBizContent("{" +"\"out_trade_no\":\""+out_trade_no+"\"," +"\"trade_no\":\""+trade_no+"\"," +"\"refund_amount\":"+total_amount+"," +"\"refund_reason\":\""+refund_reason+"\"," +"\"out_request_no\":\"\"," +"\"operator_id\":\"\"," +"\"store_id\":\"\"," +"\"terminal_id\":\"\"" +" }");AlipayTradeRefundResponse aliResponse = alipayClient.execute(apliRequest);//通过alipayClient调用API，获得对应的response类if(aliResponse.isSuccess()){//调用成功flag = true;} else {//调用失败flag = false;}} catch (Exception e) {e.printStackTrace();}return flag;}}

第一次写,有问题的话请指正