接入准备
/open/284/106001?ref=api
根据文档进行创建小程序、配置相关信息（接口加签方式选择证书）
生成二维码文档/mini/02owto
开发接口
1.添加依赖
<!-- 支付宝核心sdk --><dependency><groupId>com.alipay.sdk</groupId><artifactId>alipay-sdk-java</artifactId><version>4.22.113.ALL</version></dependency><!-- 加解密钥sdk --><dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-jdk15on</artifactId><version>1.62</version></dependency>
2.配置信息
package mon.utils.alipay;public class AlipayConfig {/*** 支付宝AppId*/public static final String APP_ID = "";// 商户idpublic static String SELLERID = "";// 应用私钥 pkcs8格式的public static String RSA_PRIVATE_KEY = "";// 支付宝公钥public static String ALIPAY_PUBLIC_KEY = "";// 请求网关地址public static String URL = "/gateway.do";// 编码public static String CHARSET = "UTF-8";// 返回格式public static String FORMAT = "json";// 日志记录目录public static String log_path = "/log";// RSA2public static String SIGNTYPE = "RSA2";}
3.工具类AlipayUtils
package mon.utils.alipay;import com.alipay.api.AlipayApiException;import com.alipay.api.CertAlipayRequest;import com.alipay.api.DefaultAlipayClient;import com.alipay.api.domain.AlipayOpenAppQrcodeCreateModel;import com.alipay.api.request.AlipayOpenAppQrcodeCreateRequest;import com.alipay.api.request.AlipaySystemOauthTokenRequest;import com.alipay.api.request.AlipayUserInfoShareRequest;import com.alipay.api.response.AlipayOpenAppQrcodeCreateResponse;import com.alipay.api.response.AlipaySystemOauthTokenResponse;import com.alipay.api.response.AlipayUserInfoShareResponse;public class AlipayUtils {/*** 服务端获取access_token、user_id* * @param authCode* @return* @throws Exception*/public static AlipaySystemOauthTokenResponse getAccessToken(String authCode) throws Exception {CertAlipayRequest certAlipayRequest = new CertAlipayRequest();// 实例化客户端（参数：网关地址、商户appid、商户私钥、格式、编码、支付宝公钥、加密类型）certAlipayRequest.setServerUrl(AlipayConfig.URL);certAlipayRequest.setAppId(AlipayConfig.APP_ID);certAlipayRequest.setPrivateKey(AlipayConfig.RSA_PRIVATE_KEY);certAlipayRequest.setFormat(AlipayConfig.FORMAT); // JSONcertAlipayRequest.setCharset(AlipayConfig.CHARSET); // UTF-8certAlipayRequest.setSignType(AlipayConfig.SIGNTYPE); // RSA2// 上传csr文件后 完成配置,支付宝后台能下载3个文件// 应用公匙/home/ruoyicertAlipayRequest.setCertPath("");// 支付宝公匙certAlipayRequest.setAlipayPublicCertPath("/home/ruoyi/xmcrt/alipayCertPublicKey_RSA2.crt");// 支付宝 根 公匙certAlipayRequest.setRootCertPath("/home/ruoyi/xmcrt/alipayRootCert.crt");DefaultAlipayClient alipayClient = new DefaultAlipayClient(certAlipayRequest);// 实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.system.oauth.tokenAlipaySystemOauthTokenRequest request = new AlipaySystemOauthTokenRequest();request.setGrantType("authorization_code");request.setCode(authCode);AlipaySystemOauthTokenResponse response = alipayClient.certificateExecute(request);if (response.isSuccess()) {System.out.println("调用成功");} else {System.out.println("调用失败");}return response;}/*** 生成支付宝小程序二维码* * @param urlParam 小程序中能访问到的页面路径* @param queryParam 小程序的启动参数，打开小程序的query ，在小程序 onLaunch的方法中获取* @param describe 对应的二维码描述* @return*/public static String createQrCode(String urlParam, String queryParam, String describe) {String qrCodeUrl = "";try {CertAlipayRequest certAlipayRequest = new CertAlipayRequest();// 实例化客户端（参数：网关地址、商户appid、商户私钥、格式、编码、支付宝公钥、加密类型），为了取得预付订单信息certAlipayRequest.setServerUrl(AlipayConfig.URL);certAlipayRequest.setAppId(AlipayConfig.APP_ID);certAlipayRequest.setPrivateKey(AlipayConfig.RSA_PRIVATE_KEY);certAlipayRequest.setFormat(AlipayConfig.FORMAT);certAlipayRequest.setCharset(AlipayConfig.CHARSET);certAlipayRequest.setSignType(AlipayConfig.SIGNTYPE);// 上传csr文件后 完成配置,支付宝后台能下载3个文件// 应用公匙/home/ruoyicertAlipayRequest.setCertPath("");// 支付宝公匙certAlipayRequest.setAlipayPublicCertPath("/home/ruoyi/xmcrt/alipayCertPublicKey_RSA2.crt");// 支付宝 根 公匙certAlipayRequest.setRootCertPath("/home/ruoyi/xmcrt/alipayRootCert.crt");DefaultAlipayClient alipayClient = new DefaultAlipayClient(certAlipayRequest);// 实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.open.app.qrcode.createAlipayOpenAppQrcodeCreateRequest request = new AlipayOpenAppQrcodeCreateRequest();// SDK已经封装掉了公共参数，这里只需要传入业务参数。以下方法为sdk的model入参方式AlipayOpenAppQrcodeCreateModel model = new AlipayOpenAppQrcodeCreateModel();model.setUrlParam(urlParam);model.setQueryParam(queryParam);model.setDescribe(describe);request.setBizModel(model);AlipayOpenAppQrcodeCreateResponse response = alipayClient.certificateExecute(request);System.out.println(response.getQrCodeUrl());qrCodeUrl = response.getQrCodeUrl();} catch (AlipayApiException e) {e.printStackTrace();}return qrCodeUrl;}}
4.controller层接口
@PostMapping("/authLogin")@ResponseBodypublic AjaxResult authLogin(@RequestParam String authCode, @RequestParam String nickName,@RequestParam String avatar) {logger.info("-----------授权登录 authCode[{}], nickName[{}], avatar[{}], parentId[{}]", authCode, nickName, avatar,parentId);try {// 1. 服务端获取access_token、user_idAlipaySystemOauthTokenResponse response = AlipayUtils.getAccessToken(authCode);if (response.isSuccess()) {// 获取用户信息String accessToken = response.getAccessToken();String alipayUserId = response.getUserId();logger.info("-----------accessToken:" + accessToken);logger.info("-----------alipayUserId:" + alipayUserId);XmUser xmUser = iXmUserService.getByAlipayUserId(alipayUserId);if (xmUser != null) {return AjaxResult.success(xmUser);} else {XmUser newXmUser = new XmUser();newXmUser.setAlipayUserId(alipayUserId);newXmUser.setNickName(nickName);newXmUser.setAvatar(avatar);iXmUserService.insertXmUser(newXmUser);// 生成用户id二维码String qrCodeUrl = AlipayUtils.createQrCode("pages/index/index",newXmUser.getId(), "二维码");XmUser newXmUser2 = new XmUser();newXmUser2.setId(newXmUser.getId());newXmUser2.setQrCode(qrCodeUrl);iXmUserService.updateXmUser(newXmUser2);return AjaxResult.success(iXmUserService.getByAlipayUserId(alipayUserId));}}return AjaxResult.error("获取access_token - 调用失败！");} catch (Exception e) {e.printStackTrace();return AjaxResult.error("授权登录异常");}}
注意：将证书文件放在服务器后建议重启一下tomcat
