对接阿里支付宝支付

1. 账号注册

注册地址: 支付宝

文档地址: 小程序文档 - 支付宝文档中心

2.登录商家平台

登录地址: https://b.alipay.com/page/portal/home

1. 产品中心 - 当面付 - 申请开通

3. 登录开放平台

访问地址: 支付宝开放平台

1. 控制台 - 网页移动应用

2. 进入应用详情 - 开发设置

3. 设置接口加签方式

4. 下载密钥工具 , 生成密钥 (记录应用私钥, 后面要用到)

5. 记录支付宝公钥

6. 设置接口内容加密方式

4. 支付代码

项目引入Pom

<dependency>
  <groupId>com.alipay.sdk</groupId>
  <artifactId>alipay-sdk-java</artifactId>
  <version>4.39.2.ALL</version>
</dependency>

配置文件

pay:
  ali-pay:
    # 应用ID
    app-id: 
    # 支付宝服务器网关地址
    url: https://openapi.alipay.com/gateway.do
    # 应用私钥
    private-key: 
    # 支付宝公钥
    ali-public-key: 
    # 支付&二维码超时时间/单位:分钟
    time-out: 5
    # 接收结果通知地址.如果路径需要动态替换订单号,则以 {orderNo} 占位
    notify-url: https://xxxxxx/{orderNo}
    # 单笔最大金额
    max-money: 2000
    # 单笔最小金额
    min-money: 0.1

package cn.com.baidu.operator.util.pay;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;

/**
 * 从配置文件读取阿里支付的配置文件
 * 2024年3月21日10:20:50
 * 崔宝铖
 */
@Configuration
@ConfigurationProperties(prefix = "pay.ali-pay")
public class AliPayProperties {

    // 应用ID
    private  String appId;

    // 支付宝服务器地址
    private  String url;

    // 应用私钥
    private  String privateKey;

    // 支付宝公钥
    private  String aliPublicKey;

    // 超时时间
    private  String timeOut;

    // 接收结果通知地址
    private  String notifyUrl;

    // 单笔最大金额
    private Double maxMoney;

    // 单笔最小金额
    private Double minMoney;

    public String getAppId() {
        return appId == null ? "" : appId.trim();
    }

    public void setAppId(String appId) {
        this.appId = appId;
    }

    public String getUrl() {
        return url == null ? "" : url.trim();
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getPrivateKey() {
        return privateKey == null ? "" : privateKey.trim();
    }

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

    public String getAliPublicKey() {
        return aliPublicKey == null ? "" : aliPublicKey.trim();
    }

    public void setAliPublicKey(String aliPublicKey) {
        this.aliPublicKey = aliPublicKey;
    }

    public String getTimeOut() {
        return timeOut == null ? "5" : timeOut.trim();
    }

    public void setTimeOut(String timeOut) {
        this.timeOut = timeOut;
    }

    public String getNotifyUrl() {
        return notifyUrl == null ? "" : notifyUrl.trim();
    }

    public void setNotifyUrl(String notifyUrl) {
        this.notifyUrl = notifyUrl;
    }

    public Double getMaxMoney() {
        return maxMoney == null ? 2000 : maxMoney;
    }

    public void setMaxMoney(Double maxMoney) {
        this.maxMoney = maxMoney;
    }

    public Double getMinMoney() {
        return minMoney == null ? 0.1 : minMoney;
    }

    public void setMinMoney(Double minMoney) {
        this.minMoney = minMoney;
    }
}

package cn.com.baidu.operator.util.pay;

import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.AlipayConfig;
import com.alipay.api.domain.AlipayTradeCloseModel;
import com.alipay.api.domain.AlipayTradePrecreateModel;
import com.alipay.api.domain.AlipayTradeQueryModel;
import com.alipay.api.request.AlipayTradeCloseRequest;
import com.alipay.api.request.AlipayTradeQueryRequest;
import com.alipay.api.response.AlipayTradeCloseResponse;
import com.alipay.api.response.AlipayTradePrecreateResponse;
import com.alipay.api.request.AlipayTradePrecreateRequest;
import com.alipay.api.response.AlipayTradeQueryResponse;
import cn.com.baidu.exceptions.SaveException;
import cn.com.baidu.exceptions.SearchException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import javax.annotation.PostConstruct;
import java.awt.image.BufferedImage;
import java.text.SimpleDateFormat;

/**
 * 支付宝支付
 * 2024年3月19日15:47:30
 * CBC
 */
@Component
public class ALiPay {

    @Autowired
    private AliPayProperties aliPayProperties;

    private static AliPayProperties aliPayStaticProperties;

    @PostConstruct
    public void init() {
        aliPayStaticProperties = this.aliPayProperties;
    }
    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    public static void closePay(String orderNo) {
        AlipayConfig alipayConfig = new AlipayConfig();
        alipayConfig.setServerUrl(aliPayStaticProperties.getUrl());// 支付地址
        alipayConfig.setAppId(aliPayStaticProperties.getAppId());// 应用ID
        alipayConfig.setPrivateKey(aliPayStaticProperties.getPrivateKey());// 应用私钥
        alipayConfig.setFormat("json");
        alipayConfig.setAlipayPublicKey(aliPayStaticProperties.getAliPublicKey());// 支付宝公钥
        alipayConfig.setCharset("UTF-8");
        alipayConfig.setSignType("RSA2");// 编码
        try{
            AlipayClient alipayClient = new DefaultAlipayClient(alipayConfig);
            AlipayTradeCloseRequest request = new AlipayTradeCloseRequest();
            AlipayTradeCloseModel model = new AlipayTradeCloseModel();
            model.setOutTradeNo(orderNo);
            request.setBizModel(model);
            AlipayTradeCloseResponse response = alipayClient.execute(request);
            if (!response.isSuccess() && !response.getSubMsg().equals("交易不存在")) {
                throw new SearchException(response.getSubMsg());
            }
        }catch(Exception e) {
            throw new SearchException(e.getMessage());
        }
    }

    public static PayResultDTO queryPay(String orderNo) {
        AlipayConfig alipayConfig = new AlipayConfig();
        alipayConfig.setServerUrl(aliPayStaticProperties.getUrl());// 支付地址
        alipayConfig.setAppId(aliPayStaticProperties.getAppId());// 应用ID
        alipayConfig.setPrivateKey(aliPayStaticProperties.getPrivateKey());// 应用私钥
        alipayConfig.setFormat("json");
        alipayConfig.setAlipayPublicKey(aliPayStaticProperties.getAliPublicKey());// 支付宝公钥
        alipayConfig.setCharset("UTF-8");
        alipayConfig.setSignType("RSA2");// 编码
        try{
            AlipayClient alipayClient = new DefaultAlipayClient(alipayConfig);
            AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();
            AlipayTradeQueryModel model = new AlipayTradeQueryModel();
            model.setOutTradeNo(orderNo);
            request.setBizModel(model);
            AlipayTradeQueryResponse response = alipayClient.execute(request);
            PayResultDTO dto = new PayResultDTO();
            dto.setOrderStatus("0");
            dto.setOrderNo(response.getOutTradeNo());
            if (response.isSuccess()) {
                dto.setOrderId(response.getTradeNo());
                dto.setOrderStatus(response.getTradeStatus().equals("TRADE_SUCCESS") || response.getTradeStatus().equals("TRADE_FINISHED") ? "1" : "0");
                dto.setOrderSuccessTime(sdf.format(response.getSendPayDate()));
                dto.setMoney(PayUtil.buiderMoney(Double.parseDouble(response.getTotalAmount())));
            }
            if (response == null || (!response.isSuccess() && !response.getSubMsg().equals("交易不存在"))) {
                throw new SearchException(response.getSubMsg());
            }
            return dto;
        }catch(Exception e) {
            throw new SearchException(e.getMessage());
        }
    }

    /**
     * 创建支付的二维码
     * @param orderNo 本地订单编号(唯一)
     * @param money 支付金额, 1元为100
     * @param orderDescription 订单详细说明
     * @return
     */
    public static String createPay(String orderNo, Integer money, String orderDescription) {
        AlipayConfig alipayConfig = new AlipayConfig();
        alipayConfig.setServerUrl(aliPayStaticProperties.getUrl());// 支付地址
        alipayConfig.setAppId(aliPayStaticProperties.getAppId());// 应用ID
        alipayConfig.setPrivateKey(aliPayStaticProperties.getPrivateKey());// 应用私钥
        alipayConfig.setFormat("json");
        alipayConfig.setAlipayPublicKey(aliPayStaticProperties.getAliPublicKey());// 支付宝公钥
        alipayConfig.setCharset("UTF-8");
        alipayConfig.setSignType("RSA2");// 编码
        try{
            if (PayUtil.buiderMoney(money) > aliPayStaticProperties.getMaxMoney() || PayUtil.buiderMoney(money) < aliPayStaticProperties.getMinMoney()) {
                throw new SaveException("支付金额超出范围");
            }
            AlipayClient alipayClient = new DefaultAlipayClient(alipayConfig);
            AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();
            String notifyUrl = aliPayStaticProperties.getNotifyUrl().replaceAll("\\{orderNo}", orderNo);
            request.setNotifyUrl(notifyUrl);
            AlipayTradePrecreateModel model = new AlipayTradePrecreateModel();
            model.setOutTradeNo(orderNo);// 本地订单号
            model.setTotalAmount(PayUtil.buiderMoney(money) + ""); // 本次付款金额
            model.setTimeoutExpress(aliPayStaticProperties.getTimeOut() + "m");//交易超时时间
            model.setQrCodeTimeoutExpress(aliPayStaticProperties.getTimeOut() + "m");//二维码失效时间
            model.setSubject(orderDescription); // 本次订单说明
            request.setBizModel(model);
            AlipayTradePrecreateResponse response = alipayClient.execute(request);
            if (response.isSuccess()) {
                String qrCode = response.getQrCode();
                if (qrCode.startsWith("http")) {
                    BufferedImage bufferedImage = QRUtils.createQrCodeImage(QRUtils.createQrCode(qrCode, 330, 330), "");
                    return QRUtils.imageToBase64(bufferedImage);
                }
            }
            throw new SaveException(response.getSubMsg());
        }catch(Exception e) {
            e.printStackTrace();
            throw new SaveException("生成支付二维码失败");
        }
    }

}

package cn.com.baidu.operator.util.pay;

import io.swagger.annotations.ApiModelProperty;

/**
 * 支付结果对象
 * 2024年3月19日17:03:25
 * CBC
 */
public class PayResultDTO {

    @ApiModelProperty(name = "orderId", value = "第三方订单ID")
    private String orderId;

    @ApiModelProperty(name = "orderNo", value = "本地订单编号")
    private String orderNo;

    @ApiModelProperty(name = "orderStatus", value = "支付结果,1:成功")
    private String orderStatus;

    @ApiModelProperty(name = "orderSuccessTime", value = "支付成功时间")
    private String orderSuccessTime;

    @ApiModelProperty(name = "orderMessage", value = "支付结果详情")
    private String orderMessage;

    @ApiModelProperty(name = "money", value = "订单总金额")
    private Integer money;

    public String getOrderId() {
        return orderId == null ? "" : orderId.trim();
    }

    public void setOrderId(String orderId) {
        this.orderId = orderId;
    }

    public String getOrderNo() {
        return orderNo == null ? "" : orderNo.trim();
    }

    public void setOrderNo(String orderNo) {
        this.orderNo = orderNo;
    }

    public String getOrderStatus() {
        return orderStatus == null ? "" : orderStatus.trim();
    }

    public void setOrderStatus(String orderStatus) {
        this.orderStatus = orderStatus;
    }

    public String getOrderSuccessTime() {
        return orderSuccessTime == null ? "" : orderSuccessTime.trim();
    }

    public void setOrderSuccessTime(String orderSuccessTime) {
        this.orderSuccessTime = orderSuccessTime;
    }

    public String getOrderMessage() {
        return orderMessage == null ? "" : orderMessage.trim();
    }

    public void setOrderMessage(String orderMessage) {
        this.orderMessage = orderMessage;
    }

    public Integer getMoney() {
        return money == null ? 0 : money;
    }

    public void setMoney(Integer money) {
        this.money = money;
    }
}