springboot实现支付宝支付功能

向右看齐 2022-11-17 05:28 247阅读 0赞

一、背景

> 近期，接了一个项目需要完成支付功能。之前还没做过，这跟着做了一下，顺便记录一下。

二、准备工作

1.  打开支付宝的支付SDK

[支付宝SDK控制平台][SDK]  
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进去之后就是这个样子，然后点击研发服务先进行沙箱测试。（也可进行应用创建，需要商户进行签约，审核，通过之后上线即可实际使用）

1.  沙箱测试

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在此处记住APPID以及支付宝网关即可，然后就需要进入下一步，加密，密钥设置（参考着官方文档进行第三步操作）

1.  密钥加密

下载官方提供的秘钥生成工具进行秘钥的生成。  
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生成之后记得上传公钥。

三、Java实现

1.  引入相关依赖

<dependency>
                <groupId>com.alipay.sdk</groupId>
                <artifactId>alipay-sdk-java</artifactId>
                <version>4.9.28.ALL</version>
            </dependency>

1.  编写config配置必要请求参数

package com.xhsw.helpton.config;
    
    import org.springframework.context.annotation.Configuration;
    
    /** * @AUTHOR LYF * @DATE 2021/4/3 * @VERSION 1.0 * @DESC * 支付宝接口 */
    @Configuration
    public class AliPayConfig { 
    
        /** * netApp映射地址 */
    
        private static String neturl = "";
    
        /** * 应用的APPID */
        public static String app_id = "";
        /** * 商户私钥，您的PKCS8格式RSA2私钥 刚刚生成的私钥直接复制填写(填写自己利用第三方工具生成的私钥) */
    
        public static String merchant_private_key = ;
         /** * 支付宝公钥,对应APPID下的支付宝公钥(填写沙箱环境中的支付宝公钥) */
    
        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(支付宝完成后返回的页面) */
        public static String notify_url = neturl+"/alipay/notify_url";
        /** * 页面跳转同步通知页面路径 需http://格式的完整路径(支付宝完成后返回的页面) */
        public static String return_url = neturl+"/alipay/return_url";
    
    
        /** * 签名方式 */
        public static String sign_type = "RSA2";
        /** * 字符编码方式 */
        public static String charset = "utf-8";
        /** * 支付宝网关 */
        public static String url = "https://openapi.alipaydev.com/gateway.do";
    
    
    }

1.  编写发起到支付宝服务器的请求类

package com.xhsw.helpton.service.pay;
    
    import com.alipay.api.AlipayApiException;
    import com.alipay.api.AlipayClient;
    import com.alipay.api.DefaultAlipayClient;
    import com.alipay.api.domain.AlipayTradePagePayModel;
    import com.alipay.api.internal.util.AlipaySignature;
    import com.alipay.api.request.AlipayTradePagePayRequest;
    import com.alipay.api.request.AlipayTradeWapPayRequest;
    import com.alipay.api.response.AlipayTradeWapPayResponse;
    import com.xhsw.helpton.config.AliPayConfig;
    import org.springframework.stereotype.Service;
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    /** * @AUTHOR LYF * @DATE 2021/4/3 * @VERSION 1.0 * @DESC */
    
    @Service
    public class AliPayService2 { 
    
        /** * 支付服务(推荐传入订单号和金额,其余的从其他地方获取) */
    
    
        public  String aliPay(String amount,String oderNo,String subject) throws AlipayApiException { 
    
            // AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "app_id", "your private_key", "json", "GBK", "alipay_public_key", "RSA2");
    
    
            DefaultAlipayClient defaultAlipayClient = new DefaultAlipayClient(AliPayConfig.url,
                    AliPayConfig.app_id, AliPayConfig.merchant_private_key, "json",
                    AliPayConfig.charset, AliPayConfig.alipay_public_key, AliPayConfig.sign_type);
    
    
            AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest(); //70501111111S001111119
            request.setBizContent("{" +
                    "\"subject\":\"购买会员\"," +
                    "\"out_trade_no\":"+oderNo+"," +
                    "\"timeout_express\":\"90m\"," +
                    "\"total_amount\":"+amount+"," +
                    "\"seller_id\":\\"," +
                    "\"product_code\":\"QUICK_MSECURITY_PAY\""+
                    " }");
    
            //QUICK_MSECURITY_PAY
            AlipayTradeWapPayResponse response = defaultAlipayClient.pageExecute(request);
    
            if (response.isSuccess()) { 
                System.out.println("调用成功");
            } else { 
                System.out.println("调用失败");
            }
    
            return response.getBody();
        }
    
        public static void main(String[]args) throws AlipayApiException { 
            AliPayService2 aliPayService2 = new
                    AliPayService2();
    
            aliPayService2.aliPay("56.00","10000002","购买会员");
        }
    
    }

1.  编写service和controller

package com.xhsw.helpton.controller.pay;
    
    import com.alipay.api.AlipayApiException;
    import com.xhsw.helpton.service.PayService;
    import com.xhsw.helpton.service.pay.AliPayService;
    import com.xhsw.helpton.service.pay.AliPayService2;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.*;
    
    /** * @AUTHOR LYF * @DATE 2021/4/3 * @VERSION 1.0 * @DESC */
    //@RestController
    //@RequestMapping("/pay")
     @RestController
    public class AliPayController { 
        @Autowired
        AliPayService aliPayService;
    
        @Autowired
        AliPayService2 aliPayService2;
    
        @Autowired
        PayService payService;
    
        static Integer userId = 0;
        static Float amount = 0.00F;
        static Integer productId = 0;
        static boolean flag = false;
    
    // @ApiOperation("支付接口")
        @GetMapping("/alipay/toPay/pay/{userId}/{productId}/{amount}")
        public String alipay(@PathVariable(value = "productId")Integer productId,
         @PathVariable(value = "amount")Float amount, @PathVariable(value = "userId")Integer userId
        ) throws AlipayApiException { 
    
            flag = true;//正在支付中
            this.userId =userId;
            this.amount =amount;
            this.productId = productId;
    
            System.out.println("userId:"+userId+";productId:"+productId+";amount:"+amount);
            
            return aliPayService2.aliPay(amount+"",productId+"",userId+"TEST");
        }
    
    
        @GetMapping("/alipay/toPay/pay2/{productId}")
        public String alipay2(@PathVariable(value = "productId")String productId,@PathVariable(value = "amount")String amount) throws AlipayApiException { 
    
            // productId决定什么产品
    
            return aliPayService2.aliPay(amount,productId,"");
    
        }
    
        // @ApiOperation("支付宝异步通知接口")
        @GetMapping("/alipay/notify_url")
        public String notifyAlipay(){ 
            return "这是异步通知接口";
        }
    
    // @ApiOperation("支付成功之后的回调")
        @GetMapping("/alipay/return_url")
        public String returnAlipay(){ 
    
            flag = false;
    
            System.out.println(userId+";"+amount+";"+productId);
            payService.buyMember(userId+"",amount,productId+"");
    
            return "支付成功后的回调";
        }
    
    
    
    }

四、测试  
输入测试，即可进入支付界面（第一次需要输入账户密码，记得使用沙箱里面的账户密码以及支付密码才能，并不是真实的，实际开发需要在应用里面签约开发）  
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[SDK]: https://openhome.alipay.com/platform/developerIndex.htm
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