支付寶今年推出了新的轉賬接口alipay.fund.trans.uni.transfer(升級后安全性更高，功能更加強大) ，老轉賬接口alipay.fund.trans.toaccount.transfer將不再維護，新老接口的一個區別就是新接口采用的證書驗簽方式。使用新接口要將sdk版本升級到最新版本，博主升級時最新版本是4.10.97。接下來看集成步驟

alipay.properties

alipay.appId=你的應用idalipay.serverUrl=https://openapi.alipay.com/gateway.doalipay.privateKey=你的應用私鑰alipay.format=jsonalipay.charset=UTF-8alipay.signType=RSA2alipay.appCertPath=/cert/appCertPublicKey_2021001164652941.crtalipay.alipayCertPath=/cert/alipayCertPublicKey_RSA2.crtalipay.alipayRootCertPath=/cert/alipayRootCert.crt3.引入pom依賴

<dependency> <groupId>com.alipay.sdk</groupId> <artifactId>alipay-sdk-java</artifactId> <version>4.10.97.ALL</version></dependency>4.將配置信息注入AliPayBean

import lombok.Data;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.context.annotation.PropertySource;import org.springframework.stereotype.Component; @Component@PropertySource('classpath:/production/alipay.properties')@ConfigurationProperties(prefix = 'alipay')@Datapublic class AliPayBean { private String appId; private String privateKey; private String publicKey; private String serverUrl; private String domain; private String format; private String charset; private String signType; private String appCertPath; private String alipayCertPath; private String alipayRootCertPath; }5.寫配置類

import com.alipay.api.AlipayClient;import com.alipay.api.CertAlipayRequest;import com.alipay.api.DefaultAlipayClient;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.util.FileCopyUtils; import java.io.InputStream; @Configurationpublic class AliConfig { @Value('${custom.http.proxyHost}') private String proxyHost; @Value('${custom.http.proxyPort}') private int proxyPort; @Value('${spring.profiles.active}') private String activeEnv; @Autowired private AliPayBean aliPayBean; @Bean(name = {'alipayClient'}) public AlipayClient alipayClientService() throws Exception{ CertAlipayRequest certAlipayRequest = new CertAlipayRequest(); //設置網關地址 certAlipayRequest.setServerUrl(aliPayBean.getServerUrl()); //設置應用Id certAlipayRequest.setAppId(aliPayBean.getAppId()); //設置應用私鑰 certAlipayRequest.setPrivateKey(aliPayBean.getPrivateKey()); //設置請求格式，固定值json certAlipayRequest.setFormat(aliPayBean.getFormat()); //設置字符集 certAlipayRequest.setCharset(aliPayBean.getCharset()); //設置簽名類型 certAlipayRequest.setSignType(aliPayBean.getSignType()); //如果是生產環境或者預演環境，則使用代理模式 if ('prod'.equals(activeEnv) || 'stage'.equals(activeEnv) || 'test'.equals(activeEnv)) { //設置應用公鑰證書路徑 certAlipayRequest.setCertContent(getCertContentByPath(aliPayBean.getAppCertPath())); //設置支付寶公鑰證書路徑 certAlipayRequest.setAlipayPublicCertContent(getCertContentByPath(aliPayBean.getAlipayCertPath())); //設置支付寶根證書路徑 certAlipayRequest.setRootCertContent(getCertContentByPath(aliPayBean.getAlipayRootCertPath())); certAlipayRequest.setProxyHost(proxyHost); certAlipayRequest.setProxyPort(proxyPort); }else { //local String serverPath = this.getClass().getResource('/').getPath(); //設置應用公鑰證書路徑 certAlipayRequest.setCertPath(serverPath+aliPayBean.getAppCertPath()); //設置支付寶公鑰證書路徑 certAlipayRequest.setAlipayPublicCertPath(serverPath+aliPayBean.getAlipayCertPath()); //設置支付寶根證書路徑 certAlipayRequest.setRootCertPath(serverPath+aliPayBean.getAlipayRootCertPath()); } return new DefaultAlipayClient(certAlipayRequest); } public String getCertContentByPath(String name){ InputStream inputStream = null; String content = null; try{ inputStream = this.getClass().getClassLoader().getResourceAsStream(name); content = new String(FileCopyUtils.copyToByteArray(inputStream)); }catch (Exception e){ e.printStackTrace(); } return content; } }6.寫支付工具類

import com.alipay.api.AlipayApiException;import com.alipay.api.AlipayClient;import com.alipay.api.domain.AlipayTradeAppPayModel;import com.alipay.api.domain.AlipayTradeQueryModel;import com.alipay.api.request.AlipayTradeAppPayRequest;import com.alipay.api.request.AlipayTradeQueryRequest;import com.alipay.api.response.AlipayTradeAppPayResponse;import com.alipay.api.response.AlipayTradeQueryResponse;import lombok.extern.slf4j.Slf4j;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Service;/** * @description:支付寶工具類 * @Date:2020-08-26 */@Slf4j@Servicepublic class AliPayUtils { @Autowired @Qualifier('alipayClient') private AlipayClient alipayClient; /** * 交易查詢接口 * @param request * @return * @throws Exception */ public boolean isTradeQuery(AlipayTradeQueryModel model) throws AlipayApiException { AlipayTradeQueryRequest request = new AlipayTradeQueryRequest(); request.setBizModel(model); AlipayTradeQueryResponse alipayTradeQueryResponse = alipayClient.certificateExecute(request); if(alipayTradeQueryResponse.isSuccess()){ return true; } else { return false; } } /** * app支付 * @param model * @param notifyUrl * @return * @throws AlipayApiException */ public String startAppPay(AlipayTradeAppPayModel model, String notifyUrl) throws AlipayApiException { AlipayTradeAppPayRequest aliPayRequest = new AlipayTradeAppPayRequest(); model.setProductCode('QUICK_MSECURITY_PAY'); aliPayRequest.setNotifyUrl(notifyUrl); aliPayRequest.setBizModel(model); // 這里和普通的接口調用不同，使用的是sdkExecute AlipayTradeAppPayResponse aliResponse = alipayClient.sdkExecute(aliPayRequest); return aliResponse.getBody(); } /** * 轉賬接口 * * @param transferParams * @return AlipayFundTransToaccountTransferResponse */ public AlipayFundTransUniTransferResponse doTransferNew(TransferParams transferParams) throws Exception { String title = (StringUtils.isNotBlank(transferParams.getRemark()) ? transferParams .getRemark() : '轉賬'); //轉賬請求入參 AlipayFundTransUniTransferRequest request = new AlipayFundTransUniTransferRequest(); //轉賬參數 BizContentForUniTransfer bizContent = new BizContentForUniTransfer(); bizContent.setOut_biz_no(transferParams.getOutBizNo()); bizContent.setTrans_amount(MathUtil.changeF2Y(Math.abs(Integer.parseInt(transferParams.getAmount())))); bizContent.setProduct_code('TRANS_ACCOUNT_NO_PWD'); bizContent.setBiz_scene('DIRECT_TRANSFER'); bizContent.setOrder_title(title); Participant participant = new Participant(); participant.setIdentity(transferParams.getPayeeAccount()); participant.setIdentity_type(transferParams.getPayeeType()); participant.setName((StringUtils.isNotBlank(transferParams.getPayeeRealName()) ? transferParams .getPayeeRealName() : StringUtils.EMPTY)); bizContent.setPayee_info(participant); bizContent.setRemark(title); request.setBizContent(JSON.toJSONString(bizContent)); //轉賬請求返回 AlipayFundTransUniTransferResponse response = null; try { response = alipayClient.certificateExecute(request); } catch (Exception e) { log.info('doTransfer exception，異常信息：{}', e.toString()); log.info('doTransfer exception，支付寶返回信息：{}', JSONObject.toJSONString(response)); } log.info('doTransfer,AlipayFundTransUniTransferResponse:{}', JSONObject.toJSONString(response)); return response; }}Tips：轉賬用到的類

@Datapublic class TransferParams { /** * 應用編號 */ private Long appId; /** * 創建人id */ private Long createdBy; /** * 轉賬業務訂單號 */ private String outBizNo; /** * 收款方識別方式 */ private String payeeType; /** * 收款方賬號，可以是支付寶userId或者支付寶loginId */ private String payeeAccount; /** * 轉賬金額，單位分 */ private String amount; /** * 付款方名稱 */ private String payerShowName; /** * 收款方名稱 */ private String payeeRealName; /** * 備注 */ private String remark; /** * 支付寶轉賬流水號 */ private String orderId;}

import lombok.Data; import java.math.BigDecimal; /** * 支付寶轉賬參數 */@Datapublic class BizContentForUniTransfer { /** * 業務訂單號 */ private String out_biz_no; /** * 訂單總金額，單位為元，精確到小數點后兩位， */ private BigDecimal trans_amount; /** * 業務產品碼， * 單筆無密轉賬到支付寶賬戶固定為:TRANS_ACCOUNT_NO_PWD； * 單筆無密轉賬到銀行卡固定為:TRANS_BANKCARD_NO_PWD; * 收發現金紅包固定為:STD_RED_PACKET； */ private String product_code; /** * 描述特定的業務場景，可傳的參數如下： * DIRECT_TRANSFER：單筆無密轉賬到支付寶/銀行卡, B2C現金紅包; * PERSONAL_COLLECTION：C2C現金紅包-領紅包 */ private String biz_scene; /** * 轉賬業務的標題，用于在支付寶用戶的賬單里顯示 */ private String order_title; /** * 原支付寶業務單號。C2C現金紅包-紅包領取時，傳紅包支付時返回的支付寶單號； * B2C現金紅包、單筆無密轉賬到支付寶/銀行卡不需要該參數。 */ private String original_order_id; /** * 業務備注 */ private String remark; /** * 轉賬業務請求的擴展參數，支持傳入的擴展參數如下： * 1、sub_biz_scene 子業務場景，紅包業務必傳，取值REDPACKET，C2C現金紅包、B2C現金紅包均需傳入； * 2、withdraw_timeliness為轉賬到銀行卡的預期到賬時間，可選（不傳入則默認為T1）， * 取值T0表示預期T+0到賬，取值T1表示預期T+1到賬，因到賬時效受銀行機構處理影響，支付寶無法保證一定是T0或者T1到賬； */ private String business_params; /** * 支付收款對象 */ private Participant payee_info;}

@Datapublic class Participant { /** * 參與方的唯一標識 */ private String identity; /** * 參與方的標識類型，目前支持如下類型： * 1、ALIPAY_USER_ID 支付寶的會員ID * 2、ALIPAY_LOGON_ID：支付寶登錄號，支持郵箱和手機號格式 */ private String identity_type; /** * 參與方真實姓名，如果非空，將校驗收款支付寶賬號姓名一致性。 * 當identity_type=ALIPAY_LOGON_ID時，本字段必填。 */ private String name;}

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