帮我写一段 springboot整合支付宝与微信支付的代码demo

好的，以下是 Spring Boot 整合支付宝与微信支付的代码示例：

首先，在 pom.xml 文件中添加以下依赖：

<dependency>
    <groupId>com.alipay.sdk</groupId>
    <artifactId>alipay-sdk-java</artifactId>
    <version>4.9.9.ALL</version>
</dependency>

<dependency>
    <groupId>com.github.wxpay</groupId>
    <artifactId>wxpay-sdk</artifactId>
    <version>3..9</version>
</dependency>

然后，在 application.properties 文件中添加以下配置：

# 支付宝配置
alipay.app-id=your_app_id
alipay.private-key=your_private_key
alipay.public-key=your_public_key
alipay.notify-url=your_notify_url

# 微信支付配置
wxpay.app-id=your_app_id
wxpay.mch-id=your_mch_id
wxpay.key=your_key
wxpay.notify-url=your_notify_url

接下来，编写支付宝支付的代码：

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.response.AlipayTradePagePayResponse;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

@Service
public class AlipayService {

    @Value("${alipay.app-id}")
    private String appId;

    @Value("${alipay.private-key}")
    private String privateKey;

    @Value("${alipay.public-key}")
    private String publicKey;

    @Value("${alipay.notify-url}")
    private String notifyUrl;

    public String pay(String outTradeNo, String subject, String totalAmount) throws AlipayApiException {
        AlipayClient client = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", appId, privateKey, "json", "UTF-8", publicKey, "RSA2");
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
        request.setReturnUrl("your_return_url");
        request.setNotifyUrl(notifyUrl);
        request.setBizContent("{\"out_trade_no\":\"" + outTradeNo + "\","
                + "\"total_amount\":\"" + totalAmount + "\","
                + "\"subject\":\"" + subject + "\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
        AlipayTradePagePayResponse response = client.pageExecute(request);
        return response.getBody();
    }
}

最后，编写微信支付的代码：

import com.github.wxpay.sdk.WXPay;
import com.github.wxpay.sdk.WXPayConfig;
import com.github.wxpay.sdk.WXPayConstants;
import com.github.wxpay.sdk.WXPayUtil;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

@Service
public class WxpayService {

    @Value("${wxpay.app-id}")
    private String appId;

    @Value("${wxpay.mch-id}")
    private String mchId;

    @Value("${wxpay.key}")
    private String key;

    @Value("${wxpay.notify-url}")
    private String notifyUrl;

    public String pay(String outTradeNo, String body, String totalFee) throws Exception {
        WXPayConfig config = new WXPayConfig() {
            @Override
            public String getAppID() {
                return appId;
            }

            @Override
            public String getMchID() {
                return mchId;
            }

            @Override
            public String getKey() {
                return key;
            }

            @Override
            public InputStream getCertStream() {
                return null;
            }

            @Override
            public int getHttpConnectTimeoutMs() {
                return ;
            }

            @Override
            public int getHttpReadTimeoutMs() {
                return ;
            }
        };
        WXPay wxpay = new WXPay(config, WXPayConstants.SignType.MD5);
        Map<String, String> data = new HashMap<>();
        data.put("body", body);
        data.put("out_trade_no", outTradeNo);
        data.put("total_fee", totalFee);
        data.put("spbill_create_ip", "your_spbill_create_ip");
        data.put("notify_url", notifyUrl);
        data.put("trade_type", "NATIVE");
        Map<String, String> resp = wxpay.unifiedOrder(data);
        String codeUrl = resp.get("code_url");
        return codeUrl;
    }
}

以上就是 Spring Boot 整合支付宝与微信支付的代码示例，希望能对你有所帮助。