SpringBoot接入支付宝转账，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

<dependency>
<groupId>com.alipay.sdk</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>4.10.97.ALL</version>
</dependency>

​​4.将配置信息注入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")
@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;

/**
* 支付方名称
*/
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;
}