web项目接入支付宝开发（超详细）_webflux 支付宝对接

作者：程序诗人 | 2024-01-30 19:17:55

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webflux 支付宝对接

web项目接入支付宝开发"超详细"

前言

前言

	最近公司项目涉及到支付宝支付的接入,说简单也挺简单,说难也挺复杂的。自己做了总结，供大家参考学习。
1

接入开发前准备

支付宝接入所需要的参数可以参考支付宝文档 “https://alipay.open.taobao.com/doc2/detail.htm?treeId=270&articleId=105901&docType=1#s0”
其实开发时不需要那么多的参数
这是个人所总结的必须参数
1、公共参数

# 应用ID,您的APPID，收款账号既是您的APPID对应支付宝账号
alipay.app_id=2016092700608222
# 商户私钥，您的PKCS8格式RSA2私钥
alipay.privateKey=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
# 支付宝公钥,查看地址：https://openhome.com/platform/keyManage.htm 对应APPID下的支付宝公钥。
alipay.publicKey=MIIBIjANBgkqhkiG9w0BAQEFCAQ8AMIIBCgKCAQEAx4j7DP30zl7+WahLyJRydSwcayJsEavQ7S1fPWqmHTK6TTVeNSMrcG/blXv42p7Eib3KeXvVIMOnNyoKXoIoOfSBYOvTyPH6cs60W31A0TanTc9aMlGof8X4WaDSDz78T34elagX+cpigV8mqLB/umkl1WoGIAkX7r3Bau+HWnPgftYPmzpL5G1/XdSEgoklGGsLGiiSGfE2KtV035+vJiViLRTiCEIKhygKTOROq36O5BsSIfgapLz08lzPT3ik9g26Jwq/7oEACcO8zg9LkcqHTnxV9LiSVg4+ay1huSmvxRE2vm21iNFNzIo6v+JEoc+cZJ0b9E7RZWKDE1ZXvQIDAQAB
# 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  必须是外网才能访问的页面
alipay.notify_url=http://ruv6tc.natappfree.cc
# 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
alipay.return_url=http://localhost:8080/returnUrl
# 签名方式
alipay.sign_type=RSA2
# 字符编码格式
alipay.charset=utf-8
# 支付宝网关
alipay.gatewayUrl=https://openapi.alipaydev.com/gateway.do
# 支付宝网关
alipay.logPath="C:\\"
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2请求参数

/**
     * 商户订单号，必填
     *
     */
    private String out_trade_no;
    /**
     * 订单名称，必填
     */
    private String subject;
    /**
     * 付款金额，必填
     * 根据支付宝接口协议，必须使用下划线
     */
    private String total_amount;
    /**
     * 商品描述，可空
     */
    private String body;
    /**
     * 超时时间参数
     */
    private String timeout_express= "5m";
    /**
     * 产品编号
     */
    private String product_code= "FAST_INSTANT_TRADE_PAY";
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开发环境：开发测试时，我们一般选用支付宝的沙箱环境进行开发测试 “https://auth.alipay.com/login/ant_sso_index.htm?goto=https%3A%2F%2Fopenhome.alipay.com%2Fplatform%2Fhome.htm”
登录开通后点右上角的管理中心

再在导航栏中找到开发中心------>研发服务

4.进入沙箱，进行注册私钥和公钥

代码开发

这里使用sprinboot 做测试
1.使用idea快速创建一个springboot项目
在这里插入图片描述
一直Next到

然后点Next----finish
2.项目创建完成打开 pom文件添加两个依赖

  <!-- alipay 支付宝SDk-->
        <dependency>
            <groupId>com.alipay.sdk</groupId>
            <artifactId>alipay-sdk-java</artifactId>
            <version>3.1.0</version>
        </dependency>
        <!-- fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.48</version>
        </dependency>
    </dependencies>
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3.在resources创建alipay.properties文件

内容：

# 应用ID,您的APPID，收款账号既是您的APPID对应支付宝账号
alipay.app_id=2016092700608222
# 商户私钥，您的PKCS8格式RSA2私钥
alipay.privateKey=MIIEvgIBADANBgkqhkiG9wAQEFAASCBKgwggSkAgEAAoIBAQCT9FGhs6lslzLvKrjzoglEJYfj3KqdNHN6bEy0uQabTaos+eU4YMw/fr14hADziuLhgPG1/GQEHQHOujiNJUSw6N++E5Wc1p3rOC1a2tnRj7JncgKUoyfEdroaeBBg/WosuhCWor+TFXs5oB8sUscJBNqzeM1cdzjxj9Du6YcCirDU4+61vuAfaladd5WsvMr3kPnkazDOnAiB3FS9tOGExMF2DW44XJtYXzvw6U169fI7KTAp8HQwf6pyvvorHBArKim1bi8UiOCYCILbgmP5rQzHoRbdL2UeL1PwadfFtwMxQDcuhwOt01VVTKF5rI5NqsZSmQgvpXyL87O/bs+1AgMBAAECggEAKz76rV0qZIc9aBMAxJXUR4sA0WWqqRCvwFTvhtOeTr7Awyy4B2ajzNtq3lMXRBiQgIGEJUGEqn8gDCD6bqc6EMvAunpW/OTue9aLy0a07EAoUXxNrMyTzyU0+I+nmfH4muI3/w/LF17sCcf31KjNbKFym4rv29stVc5Hr82qnN8hYPiWpHveYpaB0r+NtvuXqSPswzmIELussvpCu7AhzHZ8LqvUS2knl+YnjDfMWdjFZyXZRxsjvcsStUI7E3Ygm8OGWimnYXQalDBpV03Z+RSCgwzA50DvGa53nwu+EFizl86hb17o96+RpHk6Emao2WbJSGnHN2GlDnXFjcXwAQKBgQDqFvH4XcVWtqH+wOlKsITwoBonv1WDJOAe1L85YbJVisQuQwlnNozaIQLiw+SErkufyrSiupBYbhvDKkZa/Ur+pMgmqXOFTyWXFcQNrd3Hha/LY+jjTODOOLmI962t0Kl8QfEPh6zv2WFGZ7ZNPTzs/5lFN+PCEXut84KoMYc/AQKBgQChzXl6XYAnVqYt73X23YRdx566GeG6ka6wqCf9Lyz4iZSxR4rpB0xR9ehNmQIank3afEduGODYcis7ytZg/Lpm+b0gNgx/Lb2S2Kpgp7GHx6r+CoL1xMasWcJS/xrRwQDb3ow9AeHuUpgZ4s3jnA8LoLdJ13kkGrsKaUF4IRNEtQKBgQCg9KHvyloT44PDbNV7+5+M7CjPx6l+gO5xhIrvY5OBaea2gHWIuGNk4Gnhjhwkdsuc1X4anfj+NMd2DC1QBvV33cmZe83ojaElH1wso63osK1NRictkwDICwzXdqW+68h9ncGokfuA95EBHfKlbUPlGWJDy8gY+nh2BQeDqnp6AQKBgQCLk0qVag7g4Hhd69Gg8Rn8I/UiqKz2WjGNpqFIYOe0RkqEWyjTOD53/V81gSY1fBXAwbCEouVjEamF3MXtyFWr+wdQwA8rrnN4N3tSAZa9gFpa5wptpB+WEZ/2JKYoBwwMnv/uqK8S/SDEQ8hD7h10dGFoS33uzThIFOArFq0eeQKBgF2kiybVUrEqiXpr6ADLrulsrfkxlqGoiPR9jZrxXomdgutbBTZ/J5G8sFT5mP7/oJxpMMzOg6AdmtQQTkPJEAvW/XWWfxn2rTP39E0TTA0gY6NqLTTLhlhhxShNDPwucHgslMsPqZ6pl1u1HjWAHIpbSthhJ8L5nH7G2zUAUCnb
# 支付宝公钥,查看地址：https://openhome.com/platform/keyManage.htm 对应APPID下的支付宝公钥。
alipay.publicKey=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx4j7DP30zl7+WahLyJRydSwcayJsEavQ7S1fPWqmHTK6TTVeMrcG/blXv42p7Eib3KeXvVIMOnNyoKXoIoOfSBYOvTyPH6cs60W31A0TanTc9aMlGof8X4WaDSDz78T34elagX+cpigV8mqLB/umkl1WoGIAkX7r3Bau+HWnPgftYPmzpL5G1/XdSEgoklGGsLGiiSGfE2KtV035+vJiViLRTiCEIKhygKTOROq36O5BsSIfgapLz08lzPT3ik9g26Jwq/7oEACcO8zg9LkcqHTnxV9LiSVg4+ay1huSmvxRE2vm21iNFNzIo6v+JEoc+cZJ0b9E7RZWKDE1ZXvQIDAQAB
# 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  必须是外网才能访问的页面
alipay.notify_url=http://ruv6tc.natappfree.cc
# 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
alipay.return_url=http://localhost:8080/returnUrl
# 签名方式
alipay.sign_type=RSA2
# 字符编码格式
alipay.charset=utf-8
# 支付宝网关
alipay.gatewayUrl=https://openapi.alipaydev.com/gateway.do
# 支付宝网关
alipay.logPath="C:\\"

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4.创建包，本人的包结构
在这里插入图片描述

4.在model下建两个类（一个实体类，一个配置类）
1AlipayProperties （配置类，作用：把alipay.properties文件加载到类中）

package com.example.alipay.model;


import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;

@Component
@PropertySource(value={"classpath:alipay.properties"})
@ConfigurationProperties(prefix = "alipay")
public class AlipayProperties {
    private String app_id;
    private String privateKey;
    private String publicKey;
    private String notify_url;
    private String return_url;
    private String sign_type;
    private String charset;
    private String gatewayUrl;
    private String logPath;

    @Override
    public String toString() {
        return "AlipayProperties{" +
                "app_id='" + app_id + '\'' +
                ", privateKey='" + privateKey + '\'' +
                ", publicKey='" + publicKey + '\'' +
                ", notify_url='" + notify_url + '\'' +
                ", return_url='" + return_url + '\'' +
                ", sign_type='" + sign_type + '\'' +
                ", charset='" + charset + '\'' +
                ", gatewayUrl='" + gatewayUrl + '\'' +
                ", logPath='" + logPath + '\'' +
                '}';
    }

    public String getApp_id() {
        return app_id;
    }

    public void setApp_id(String app_id) {
        this.app_id = app_id;
    }

    public String getPrivateKey() {
        return privateKey;
    }

    public void setPrivateKey(String privateKey) {
        this.privateKey = privateKey;
    }

    public String getPublicKey() {
        return publicKey;
    }

    public void setPublicKey(String publicKey) {
        this.publicKey = publicKey;
    }

    public String getNotify_url() {
        return notify_url;
    }

    public void setNotify_url(String notify_url) {
        this.notify_url = notify_url;
    }

    public String getReturn_url() {
        return return_url;
    }

    public void setReturn_url(String return_url) {
        this.return_url = return_url;
    }

    public String getSign_type() {
        return sign_type;
    }

    public void setSign_type(String sign_type) {
        this.sign_type = sign_type;
    }

    public String getCharset() {
        return charset;
    }

    public void setCharset(String charset) {
        this.charset = charset;
    }

    public String getGatewayUrl() {
        return gatewayUrl;
    }

    public void setGatewayUrl(String gatewayUrl) {
        this.gatewayUrl = gatewayUrl;
    }

    public String getLogPath() {
        return logPath;
    }

    public void setLogPath(String logPath) {
        this.logPath = logPath;
    }




}

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	2、AlipayBean（实体类 作用：接收请求参数）
1

package com.example.alipay.model;

/**
 * 支付实体对象
 * 根据支付宝接口协议，其中的属性名，必须使用下划线，不能修改
 * @author Louis
 * @date Dec 12, 2018
 */
public class AlipayBean {

    /**
     * 商户订单号，必填
     *
     */
    private String out_trade_no;
    /**
     * 订单名称，必填
     */
    private String subject;
    /**
     * 付款金额，必填
     * 根据支付宝接口协议，必须使用下划线
     */
    private String total_amount;
    /**
     * 商品描述，可空
     */
    private String body;
    /**
     * 超时时间参数
     */
    private String timeout_express= "5m";
    /**
     * 产品编号
     */
    private String product_code= "FAST_INSTANT_TRADE_PAY";

    public String getOut_trade_no() {
        return out_trade_no;
    }
    public void setOut_trade_no(String out_trade_no) {
        this.out_trade_no = out_trade_no;
    }
    public String getSubject() {
        return subject;
    }
    public void setSubject(String subject) {
        this.subject = subject;
    }
    public String getTotal_amount() {
        return total_amount;
    }
    public void setTotal_amount(String total_amount) {
        this.total_amount = total_amount;
    }
    public String getBody() {
        return body;
    }
    public void setBody(String body) {
        this.body = body;
    }
    public String getTimeout_express() {
        return timeout_express;
    }
    public void setTimeout_express(String timeout_express) {
        this.timeout_express = timeout_express;
    }
    public String getProduct_code() {
        return product_code;
    }
    public void setProduct_code(String product_code) {
        this.product_code = product_code;
    }

}

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5.在service.impl下建Alipay类
接入支付中最主要代码
内容

package com.example.alipay.service.impl;

import com.alibaba.fastjson.JSON;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.example.alipay.model.AlipayBean;
import com.example.alipay.model.AlipayProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Date;
import java.util.UUID;


@Component
public class Alipay {

    /**
     * 支付接口
     * @param alipayBean
     * @return
     * @throws AlipayApiException
     */
    @Autowired
    AlipayProperties alipayProperties;
    public String pay(AlipayBean alipayBean) throws AlipayApiException {
        // 1、获得初始化的AlipayClient
        String serverUrl = alipayProperties.getGatewayUrl();
        String appId = alipayProperties.getApp_id();
        String privateKey = alipayProperties.getPrivateKey();
        String format = "json";
        String charset = alipayProperties.getCharset();
        String alipayPublicKey = alipayProperties.getPublicKey();
        String signType = alipayProperties.getSign_type();
        String returnUrl = alipayProperties.getReturn_url();
        String notifyUrl = alipayProperties.getNotify_url();
        AlipayClient alipayClient = new DefaultAlipayClient(serverUrl, appId, privateKey, format, charset, alipayPublicKey, signType);
        // 2、设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        // 页面跳转同步通知页面路径
        alipayRequest.setReturnUrl(returnUrl);
        // 服务器异步通知页面路径
        alipayRequest.setNotifyUrl(notifyUrl);
        //账户订单号
        String out_trade_no = new Date().getTime()+ UUID.randomUUID().toString();
        alipayBean.setOut_trade_no(out_trade_no);
        // 封装参数
        alipayRequest.setBizContent(JSON.toJSONString(alipayBean));
        // 3、请求支付宝进行付款，并获取支付结果
        String result = alipayClient.pageExecute(alipayRequest).getBody();
        // 返回付款信息
        return result;
    }
}

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6.在controller下建OrderController类
内容

package com.example.alipay.controller;


import com.alipay.api.AlipayApiException;
import com.example.alipay.model.AlipayBean;
import com.example.alipay.service.impl.Alipay;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;



@Controller
public class OrderController {
    @Autowired
    Alipay alipay;
    @PostMapping(value = "alipay")
    @ResponseBody
//    String outTradeNo, String subject, String totalAmount, String body
    public String alipay(AlipayBean alipayBean) throws AlipayApiException {
        return alipay.pay(alipayBean);
    }
}


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7.最后在static下建一个测试的html页面（index.html）

<!DOCTYPE html>
<html lang="en">
<head>
       <meta charset="UTF-8">
       <title>Title</title>
</head>
<body>
<H1>支付测试</H1>
<hr>
<div class="form-container">
    <form id="form" action="http://localhost:8080/alipay" method="post">
        <!--   *商户订单 :-->
      
           *订单名称 :
           <input type="text" name="subject" value="快乐风男"><br>
           *付款金额 :
           <input type="text" name="total_amount" value="300" ><br>
           *商品描述 :
           <input type="text" name="body" value="移动的300元"><br>
           <input type="submit" value="支付宝支付" >
    </form>
</div>
</body>

<style>
    .form-container {
        padding-top:10px;
    }
    input {
        margin:10px;

    }
</style>
</html>

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到此代码就完成了

项目测试

1.在浏览器输入 localhost:8080
在这里插入图片描述
2点击支付宝支付

3.注意：因为我们是用沙箱环境测试开发的，所有在这里是需要下载一个沙箱般的支付宝手机app 才能扫码支付（沙箱般的是做测试用的，不会涉及到财产）
沙箱下载：

最后本人乃是小白一个如有不好的，请大家多多指教

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