java支付宝网页支付

╰半橙微兮° 2024-04-18 20:10 79阅读 0赞

# 用于自己试验与记录，只可用与参考，建议自己读取阿里支付文档。 #

# POM依赖 #

<dependency>
                <groupId>com.alipay.sdk</groupId>
                <artifactId>alipay-sdk-java</artifactId>
                <version>3.7.4.ALL</version>
            </dependency>

# 支付宝配置类 #

package com.iot.donation.config;
    
    /**
     * @Author 张满
     * @Description   支付宝配置类
     * @Date 2019/9/7 21:19
     * @vsersion 1.0.0
     **/
    public class AliPayConfig {
    
    
        // 应用ID,您的APPID，收款账号既是您的APPID对应支付宝账号
        public static String app_id = "2016101100664445";
    
        // 商户私钥，您的PKCS8格式RSA2私钥
        public static String merchant_private_key = "*************************";
    
        // 支付宝公钥,查看地址：https://openhome.alipay.com/platform/keyManage.htm 对应APPID下的支付宝公钥。
        public static String alipay_public_key = "*******************************";
    
        // 服务器异步通知页面路径  需http://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 = "*************************";
    
        // 页面跳转同步通知页面路径 需http://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 return_url = "**************************";
    
        // 签名方式
        public static String sign_type = "RSA2";
    
        // 字符编码格式
        public static String charset = "utf-8";
    
        // 支付宝网关
        public static String gatewayUrl = "https://openapi.alipaydev.com/gateway.do";
    
    
    
    
    
    }

# 实际使用 #

package com.iot.donation.controller;
    
    import cn.hutool.core.util.IdUtil;
    import com.alipay.api.AlipayApiException;
    import com.alipay.api.AlipayClient;
    import com.alipay.api.DefaultAlipayClient;
    import com.alipay.api.internal.util.AlipaySignature;
    import com.alipay.api.request.AlipayTradePagePayRequest;
    import com.iot.donation.config.AliPayConfig;
    import com.iot.donation.constant.DonationMessageStatusConstants;
    import com.iot.donation.constant.OrderStatusConstants;
    import com.iot.donation.constant.PayTypeConstants;
    import com.iot.donation.entity.MoneyDonation;
    import com.iot.donation.entity.Project;
    import com.iot.donation.entity.User;
    import com.iot.donation.service.MoneyDonationService;
    import com.iot.donation.service.ProjectService;
    import com.iot.donation.util.StringUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    import java.io.IOException;
    import java.io.PrintWriter;
    import java.io.UnsupportedEncodingException;
    import java.math.BigDecimal;
    import java.util.Date;
    import java.util.HashMap;
    import java.util.Iterator;
    import java.util.Map;
    
    /**
     * @Author 张满
     * @Description 支付宝支付controller
     * @Date 2019/9/7 21:05
     * @vsersion 1.0.0
     **/
    @Controller
    @RequestMapping("/AliPay")
    public class AliPayController {
    
        private static final Logger log = LoggerFactory.getLogger(AliPayController.class);
    
        @Autowired
        private ProjectService projectService;
    
        @Autowired
        private MoneyDonationService moneyDonationService;
    
    
        /**
         * @Author 张满
         * @Description 生成捐赠订单，调用支付接口生成支付界面
         * @Date 2019/9/8  15:48
         * @Param [money, projectId, payType, word, userPayType, response, session]
         * @return void
         **/
        @RequestMapping("/toAliPay")
        public  void toAliPay(@RequestParam(value = "money",required = true) Double money,
                              @RequestParam(value = "projectId",required = true)Integer projectId,
                              @RequestParam(value = "payType",required = true)Integer payType,
                              @RequestParam(value = "word",required = false)String word,
                              @RequestParam(value = "userPayType",required = true)Integer userPayType,
                              HttpServletResponse response,
                              HttpSession session
                                ){
            response.setContentType("text/html");
            response.setCharacterEncoding("UTF-8");
    
            //--------------------------------------------------------生成本地订单--------------------------------------------------------
    
            User user = (User) session.getAttribute("user");
    
            MoneyDonation moneyDonation=new MoneyDonation();
            if(user!=null){
                //如果用户已经登录（实名捐赠）
                moneyDonation.setUserid(user.getId());
            }
            //设置捐献项目
            moneyDonation.setProjectid(projectId);
            //设置捐赠金额（元）
            moneyDonation.setSum(new BigDecimal(money).setScale(2,BigDecimal.ROUND_HALF_UP));
            //设置支付方式为支付宝支付
            if(payType.equals(PayTypeConstants.ZHI_FU_BAO)){
                moneyDonation.setType(PayTypeConstants.ZHI_FU_BAO);
            }
            //捐赠时间
            moneyDonation.setCreatetime(new Date());
            //生成订单id-----类似 b17f24ff026d40949c85a24f4f375d42
            String orderId = IdUtil.simpleUUID();
            moneyDonation.setOrderId(orderId);
            //设置订单状态
            moneyDonation.setOrderStatus(OrderStatusConstants.PAYING);
            //捐赠寄语，默认设置寄语状态为启用寄语
            if(StringUtils.isNotEmpty(word)){
                moneyDonation.setMessage(word);
                moneyDonation.setStatus(DonationMessageStatusConstants.ENABLE);
            }
    
            //得到项目名
            Project project = projectService.queryProjectById(projectId);
            String projectName = project.getName();
    
            //生成订单
            int count = moneyDonationService.generateMoneyDonation(moneyDonation);
    
            log.info("生成本地支付宝支付捐赠订单："+moneyDonation.toString());
            //如果生成订单不成功
            if(count!=1){
                log.error("生成捐赠订单失败！");
                return;
            }
    
            //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);
            //---------------------------------------------------------向阿里请求支付页面---------------------------------------------------------------------------------------------
            alipayRequest.setBizContent("{\"out_trade_no\":\""+ orderId +"\","
                    + "\"total_amount\":\""+ money.toString() +"\","
                    + "\"subject\":\""+ projectName+"捐赠" +"\","
                    + "\"body\":\""+ "向"+projectName+"项目捐赠" +"\","
                    + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
    
            //请求
            String result = null;
            PrintWriter writer = null;
            try {
                result = alipayClient.pageExecute(alipayRequest).getBody();
                //输出
                writer = response.getWriter();
                writer.println(result);
                log.info("-----------生成支付页面成功---------");
            } catch (AlipayApiException e) {
                log.info("------------向支付宝请求支付页面失败--------------");
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
    
    
    
    
        }
    
    
    
    
        /**
         * @Author 张满
         * @Description 支付成功后返回支付成功页面===========支付宝服务器同步请求，有可能出现阿里调用此接口失败，导致业务逻辑未能全部实现的情况
         * @Date 2019/9/9  11:22
         * @Param [request]
         * @return java.lang.String
         **/
        @GetMapping("/return_url")
        public String toPaySuccess(HttpServletRequest request){
    
            log.info("----------------进入return_url--------");
    
            //获取支付宝GET过来反馈信息
            Map<String,String> params = new HashMap<String,String>();
            Map<String,String[]> requestParams = request.getParameterMap();
            for (Iterator<String> 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] + ",";
                }
                //乱码解决，这段代码在出现乱码时使用
                try {
                    valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
                params.put(name, valueStr);
    
            }
            log.info("得到支付宝返回参数："+params.toString());
            boolean signVerified = false; //调用SDK验证签名
            try {
                signVerified = AlipaySignature.rsaCheckV1(params, AliPayConfig.alipay_public_key, AliPayConfig.charset, AliPayConfig.sign_type);
            } catch (AlipayApiException e) {
                e.printStackTrace();
            }
            if(signVerified) {
                log.info("检验签名成功！");
                //商户订单号
                String out_trade_no = null;
                String trade_no = null;
                String total_amount = null;
                try {
                    //商户订单号
                    out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");
                    //支付宝交易号
                    trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");
                    //付款金额
                    total_amount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"),"UTF-8");
                    log.info("trade_no:"+trade_no+"------out_trade_no:"+out_trade_no+"-----total_amount:"+total_amount);
    
    
                    //返回支付成功页面
                    return "protal/pay/paySuccess";
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
            }else {
                log.error("验签失败");
            }
            //返回页面丢失页面
            return "protal/404";
        }
    
    
        /**
         * @Author 张满
         * @Description 支付宝异步通知接口，用于支付成功后的业务逻辑处理
         * @Date 2019/9/8  16:35
         * @Param [request, response]
         * @return void
         **/
        @PostMapping("/notify_url")
        public void notify_url(HttpServletRequest request,HttpServletResponse response){
    
    
            log.info("----------------进入notify_url--------");
    
    
            PrintWriter out = null;
            try {
                out = response.getWriter();
            } catch (IOException e) {
                e.printStackTrace();
            }
    
            //获取支付宝POST过来反馈信息
            Map<String,String> params = new HashMap<String,String>();
            Map<String,String[]> requestParams = request.getParameterMap();
    
            for (Iterator<String> 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] + ",";
                }
                //乱码解决，这段代码在出现乱码时使用
    //            try {
    //               valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
    //            } catch (UnsupportedEncodingException e) {
    //                e.printStackTrace();
    //            }
                params.put(name, valueStr);
            }
            log.info("支付宝返回参数："+params.toString());
            boolean signVerified = false; //调用SDK验证签名
            try {
                signVerified = AlipaySignature.rsaCheckV1(params, AliPayConfig.alipay_public_key, AliPayConfig.charset, AliPayConfig.sign_type);
            } catch (AlipayApiException e) {
                e.printStackTrace();
            }
    
            if(signVerified) {//验证成功
                log.info("签名校验成功！");
                String trade_status = null;
                String out_trade_no="";
                String trade_no="";
                try {
                    //商户订单号
                    out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");
                    //支付宝交易号
                    trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");
                    //交易状态
                    trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");
    
                    log.info("trade_no:"+trade_no+"-----out_trade_no:"+out_trade_no+"-----trade_status:"+trade_status);
    
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
    
                if(trade_status.equals("TRADE_SUCCESS")){
                    log.info("订单号为："+out_trade_no+"的订单已经支付成功");
                    //判断该笔订单是否在商户网站中已经做过处理
                    MoneyDonation moneyDonation = moneyDonationService.findMoneyDonationByOrderId(out_trade_no);
                    if(moneyDonation!=null){
                        //订单号已改变
                        if(moneyDonation.getOrderStatus().equals(OrderStatusConstants.PAYED)){
                            log.info("改订单已经处理过！");
                            out.println("success");
                        }else {
                            //改变订单状态
                            boolean flag = moneyDonationService.finishOrderByAliPay(moneyDonation);
                            if(flag){
                                out.println("success");
                                log.info("完成订单交易成功！");
                            }else {
                                out.println("fail");
                                log.error("完成订单交易失败！");
                            }
                        }
    
                    }else{
                        log.error("订单号在数据库已不存在！");
                    }
                }
    
            }else {
                //验证失败
                out.println("fail");
                log.error("验证失败!");
            }
            out.println("fail");
        }
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    }