SpringBoot接入支付宝，实战来了

　　支付宝推出了新的转账接口 alipay.fund.trans.uni.transfer (升级后安全性更高，功能更加强大) ，老转账接口alipay.fund.trans.toaccount.transfer 将不再维护，新老接口的一个区别就是新接口采用的证书验签方式。
　　使用新接口要将sdk版本升级到最新版本，博主升级时最新版本是4.10.97。
　　接下来看集成步骤。 1.将支付宝开放平台里下载的3个证书放在resources下面2.写支付宝支付的配置文件
　　alipay.properties alipay.appId=你的应用id alipay.serverUrl=https://openapi.alipay.com/gateway.do alipay.privateKey=你的应用私钥 alipay.format=json alipay.charset=UTF-8 alipay.signType=RSA2 alipay.appCertPath=/cert/appCertPublicKey_2021001164652941.crt alipay.alipayCertPath=/cert/alipayCertPublicKey_RSA2.crt alipay.alipayRootCertPath=/cert/alipayRootCert.crt 3.引入pom依赖      com.alipay.sdk      alipay-sdk-java      4.10.97.ALL  4.将配置信息注入AliPayBeanimport 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＂) @Data public 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.写配置类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;     @Configuration public 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();         //设置网关地址         certAlipayRequest.setServerUrl(aliPayBean.getServerUrl());         //设置应用Id         certAlipayRequest.setAppId(aliPayBean.getAppId());         //设置应用私钥         certAlipayRequest.setPrivateKey(aliPayBean.getPrivateKey());         //设置请求格式，固定值json         certAlipayRequest.setFormat(aliPayBean.getFormat());         //设置字符集         certAlipayRequest.setCharset(aliPayBean.getCharset());         //设置签名类型         certAlipayRequest.setSignType(aliPayBean.getSignType());         //如果是生产环境或者预演环境，则使用代理模式         if (＂prod＂.equals(activeEnv) || ＂stage＂.equals(activeEnv) || ＂test＂.equals(activeEnv)) {             //设置应用公钥证书路径             certAlipayRequest.setCertContent(getCertContentByPath(aliPayBean.getAppCertPath()));             //设置支付宝公钥证书路径             certAlipayRequest.setAlipayPublicCertContent(getCertContentByPath(aliPayBean.getAlipayCertPath()));             //设置支付宝根证书路径             certAlipayRequest.setRootCertContent(getCertContentByPath(aliPayBean.getAlipayRootCertPath()));             certAlipayRequest.setProxyHost(proxyHost);             certAlipayRequest.setProxyPort(proxyPort);           }else {             //local             String serverPath = this.getClass().getResource(＂/＂).getPath();             //设置应用公钥证书路径             certAlipayRequest.setCertPath(serverPath+aliPayBean.getAppCertPath());             //设置支付宝公钥证书路径             certAlipayRequest.setAlipayPublicCertPath(serverPath+aliPayBean.getAlipayCertPath());             //设置支付宝根证书路径             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.写支付工具类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:支付宝工具类  * @Date:2020-08-26  */ @Slf4j @Service public class AliPayUtils {     @Autowired     @Qualifier(＂alipayClient＂)     private AlipayClient alipayClient;       /**      * 交易查询接口      * @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);         // 这里和普通的接口调用不同，使用的是sdkExecute         AlipayTradeAppPayResponse aliResponse = alipayClient.sdkExecute(aliPayRequest);         return aliResponse.getBody();     }     /**      * 转账接口      *      * @param transferParams      * @return AlipayFundTransToaccountTransferResponse      */      public AlipayFundTransUniTransferResponse doTransferNew(TransferParams transferParams) throws Exception {           String title = (StringUtils.isNotBlank(transferParams.getRemark()) ? transferParams                 .getRemark() : ＂转账＂);         //转账请求入参         AlipayFundTransUniTransferRequest request = new AlipayFundTransUniTransferRequest();         //转账参数         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));           //转账请求返回         AlipayFundTransUniTransferResponse response = null;         try {             response = alipayClient.certificateExecute(request);         } catch (Exception e) {               log.info(＂doTransfer exception，异常信息：{}＂, e.toString());               log.info(＂doTransfer exception，支付宝返回信息：{}＂, JSONObject.toJSONString(response));           }           log.info(＂doTransfer,AlipayFundTransUniTransferResponse:{}＂, JSONObject.toJSONString(response));           return response;     } }
　　Tips：转账用到的类 @Data public class TransferParams {       /**      * 应用编号      */     private Long appId;       /**      * 创建人id      */     private Long createdBy;       /**      * 转账业务订单号      */     private String outBizNo;       /**      * 收款方识别方式      */     private String payeeType;       /**      * 收款方账号，可以是支付宝userId或者支付宝loginId      */     private String payeeAccount;       /**      * 转账金额，单位分      */     private String amount;       /**      * 付款方名称      */     private String payerShowName;       /**      * 收款方名称      */     private String payeeRealName;       /**      * 备注      */     private String remark;       /**      * 支付宝转账流水号      */     private String orderId; } import lombok.Data;   import java.math.BigDecimal;   /**  * 支付宝转账参数  */ @Data public class BizContentForUniTransfer {     /**      * 业务订单号      */     private String out_biz_no;       /**      * 订单总金额，单位为元，精确到小数点后两位，      */     private BigDecimal trans_amount;       /**      * 业务产品码，      * 单笔无密转账到支付宝账户固定为:TRANS_ACCOUNT_NO_PWD；      * 单笔无密转账到银行卡固定为:TRANS_BANKCARD_NO_PWD;      * 收发现金红包固定为:STD_RED_PACKET；      */     private String product_code;       /**      * 描述特定的业务场景，可传的参数如下：      * DIRECT_TRANSFER：单笔无密转账到支付宝/银行卡, B2C现金红包;      * PERSONAL_COLLECTION：C2C现金红包-领红包      */     private String biz_scene;       /**      * 转账业务的标题，用于在支付宝用户的账单里显示      */     private String order_title;       /**      * 原支付宝业务单号。C2C现金红包-红包领取时，传红包支付时返回的支付宝单号；      * B2C现金红包、单笔无密转账到支付宝/银行卡不需要该参数。      */     private String original_order_id;       /**      * 业务备注      */     private String remark;       /**      * 转账业务请求的扩展参数，支持传入的扩展参数如下：      * 1、sub_biz_scene 子业务场景，红包业务必传，取值REDPACKET，C2C现金红包、B2C现金红包均需传入；      * 2、withdraw_timeliness为转账到银行卡的预期到账时间，可选（不传入则默认为T1），      * 取值T0表示预期T+0到账，取值T1表示预期T+1到账，因到账时效受银行机构处理影响，支付宝无法保证一定是T0或者T1到账；      */     private String business_params;       /**      * 支付收款对象      */     private Participant payee_info; } @Data public class Participant {     /**      * 参与方的唯一标识      */     private String identity;       /**      * 参与方的标识类型，目前支持如下类型：      * 1、ALIPAY_USER_ID 支付宝的会员ID      * 2、ALIPAY_LOGON_ID：支付宝登录号，支持邮箱和手机号格式      */     private String identity_type;       /**      * 参与方真实姓名，如果非空，将校验收款支付宝账号姓名一致性。      * 当identity_type=ALIPAY_LOGON_ID时，本字段必填。      */     private String name; }
　　原文链接：https://blog.csdn.net/qq_33556185/article/details/110445827