JAVA支付宝授权

第一步：

首先登录到蚂蚁金服开放平台 https://open.alipay.com/platform/home.htm，前提是有商户号。创建应用之后，然后到开发者中心开通对应功能

第二步：

到应用信息里面填写应用网关与授权回调地址。应用网关填写域名即可，如：www.baidu.com；授权回调地址则需要具体到页面或者方法，如：www.baidu.com/callBack。

具体步骤可参照 蚂蚁金服开发文档 : https://docs.open.alipay.com/284/106001/

授权代码如下：

1.Controller代码：

/**
 * 包名称 com.zxtg.zshop.front.controller.alipay
 * 类名称 AlipayController.java
 * 创建时间 2019-4-24下午5:06:53
 * Copyright (c) 2019, 牵手众享科技.
 *
 */
package com.zxtg.zshop.front.controller.alipay;

import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.alipay.api.response.AlipaySystemOauthTokenResponse;
import com.alipay.api.response.AlipayUserInfoShareResponse;
import com.yjf.common.lang.util.StringUtil;
import com.zxtg.zshop.alibaba.alipay.IAlipayClient;
import com.zxtg.zshop.alibaba.alipay.constant.AlipayConstant;
import com.zxtg.zshop.alibaba.alipay.constant.AlipayConstant.AlipayGrantType;
import com.zxtg.zshop.alipay.AlipayService;
import com.zxtg.zshop.base.BaseAutowiredController;
import com.zxtg.zshop.base.ZshopConstants;
import com.zxtg.zshop.cache.IZshopRemoteCacheManager;
import com.zxtg.zshop.dataobject.ThirdBind;
import com.zxtg.zshop.dataobject.UserBaseInfo;
import com.zxtg.zshop.dataobject.ThirdBind.ThirdBindUser;
import com.zxtg.zshop.session.common.Constant;
import com.zxtg.zshop.user.request.RegisterWxUserRequest;
import com.zxtg.zshop.util.DESUtil;
import com.zxtg.zshop.util.PropertiesUtil;
import com.zxtg.zshop.util.SysCommand;
import com.zxtg.zshop.weixin.base.WeChatService;

/**
 * @类名称 AlipayController.java
 * @类描述 

 * @作者  yw [email protected]
 * @创建时间 2019-4-24 下午5:06:53
 * @版本 1.00
 *
 * @修改记录
 * 
 *     版本		 修改人 		修改日期 		 修改内容描述
 *     ----------------------------------------------
 *     1.00 	yw 	 2019-4-24             
 *     ----------------------------------------------
 * 
 */
@RequestMapping("alipay")
@Controller
public class AlipayController extends BaseAutowiredController {

	public static final String MOBILE_HOST = PropertiesUtil.getProperty("zshop.mobile.host");
	
	@Autowired
	private IAlipayClient alipayClientImpl;
	
	@Autowired
	protected WeChatService weChatService;
	
	@Autowired
	protected AlipayService alipayService;
	
	@Autowired
	private IZshopRemoteCacheManager yueziRemoteCache;
	
	
	@RequestMapping("redirect")
	public String redirect(HttpServletRequest request, String requestUrl,String scope, Model model){
		logger.info("支付宝请求路径"+requestUrl);
		String authRedirectUrl = AlipayConstant.AUTHORIZE_URL;
		authRedirectUrl = authRedirectUrl.replace("APPID", AlipayConstant.APP_ID);
		authRedirectUrl = authRedirectUrl.replace("SCOPE", AlipayConstant.SCOPE_AUTH_USER);
		authRedirectUrl = authRedirectUrl.replace("STATE", request.getSession().getId());
		
		String redirectUrl = ZshopConstants.HOST_URL + "/alipay/callback?requestUrl="+requestUrl;

		try {
			authRedirectUrl = authRedirectUrl.replace("ENCODED_URL", URLEncoder.encode(redirectUrl, "UTF-8"));
		} catch (Exception e) {
			logger.error("编码错误", e);
			return "redirect:"+requestUrl;
		}

		return "redirect:"+authRedirectUrl;
	}
	
	
	@RequestMapping("callback")
	public String callback(HttpServletRequest request, String requestUrl, String app_id, String auth_code, String state, Model model){
		logger.info("支付宝回调请求路径"+requestUrl);
		logger.info("支付宝回调auth_code:"+auth_code);
		if(!StringUtil.isBlank(auth_code)){
			AlipaySystemOauthTokenResponse alipayAuth= alipayClientImpl.getAlipayOauthToken(auth_code,AlipayGrantType.AUTH_CODE);
			if(alipayAuth!=null){
				String accessToken = alipayAuth.getAccessToken();
				logger.info("支付宝回调accessToken:"+accessToken);
				AlipayUserInfoShareResponse alipayUser = alipayClientImpl.getAlipayUserInfo(accessToken);
				if(alipayUser != null){
					logger.info("支付宝查询出来的用户ID:" + alipayUser.getUserId());
					logger.info("支付宝查询出来的用户信息:" + alipayUser.getBody());
					String nickName = alipayUser.getNickName();
					String openId  = alipayUser.getUserId();
					String userIco = alipayUser.getAvatar();
					boolean isCertified = "T".equals(alipayUser.getIsCertified());
					
					UserBaseInfo registerUser = null;
					Map conditions = new HashMap(); 
					conditions.put("openId", openId);
					conditions.put("status", ThirdBind.ThirdBindUser.BIND);
					conditions.put("thirdType", ThirdBindUser.ALIPAY);
					registerUser = userBaseInfoManager.queryUserWithThirdInfo(conditions);
					
					Long userId = null;
					if(registerUser == null){
						logger.info("没有注册过支付宝账户");
						RegisterWxUserRequest registerRequest = new RegisterWxUserRequest();
						registerRequest.setNickName(nickName);
						registerRequest.setUserIco(userIco);
						registerRequest.setOpenId(openId);
						registerRequest.setThirdType(ThirdBindUser.ALIPAY);
						
						int sex = 1; // 1为男性，2为女性
						if(isCertified && StringUtil.isNotBlank(alipayUser.getGender())){
							sex = "F".equals(alipayUser.getGender().toUpperCase()) ? 2 : 1;// M为男性，F为女性
						}
						registerRequest.setSex(sex);
						registerRequest.setIsCertified(isCertified ? 1:0);
						
						String sceneIdStr = String.valueOf(yueziRemoteCache.get("sceneId"+openId));
						if(StringUtil.isNotBlank(sceneIdStr)&& !"null".equals(sceneIdStr)){
							logger.info("二维码场景值=" + sceneIdStr);
							try{
								Integer sceneId = Integer.parseInt(sceneIdStr);
								registerRequest.setRegisterSceneId(sceneId);
							}catch(NumberFormatException e){
								logger.error("sceneId转换异常--无效的sceneId", e);
							}
						}else{
							//如果有邀请码，记录推荐关系
							String UID = String.valueOf(yueziRemoteCache.get("UID"+openId));
							if(StringUtil.isNotBlank(UID)&& !"null".equals(UID)){
								try{
									logger.info("推荐用户UID=" + UID);
									long  parsedUid = Long.parseLong(UID);
									UserBaseInfo parent = userBaseInfoManager.queryByUserId(parsedUid);
									if(parent != null){
										registerRequest.setParentUserId(parent.getUserId());
									}
								}catch(NumberFormatException e){
									logger.error("UID转换异常--无效的UID", e);
								}
							}
						}
						try {
							registerUser = registerService.registerWxUser(registerRequest);
							userId = registerUser.getUserId();
						} catch (Exception e) {
							logger.error("注册绑定支付宝用户出错", e);
						}
					}else{
						userId = registerUser.getUserId();
						try {
							//更新默认用户昵称，头像为支付宝昵称头像
							if(registerUser.getNickName().indexOf("用户") == 0){
								registerUser.setNickName(nickName);
								registerUser.setUserIco(userIco);
							}
							userBaseInfoManager.updateUserBaseInfo(registerUser);
						} catch (Exception e) {
							logger.error("更新用户信息出错", e);
						}
					}
					
					if(userId != null){
						try {
							userBaseInfoManager.buildUserRole(openId, userId);
						} catch (Exception e) {
							logger.error("绑定用户角色出错", e);
						}
						yueziRemoteCache.remove("sceneId"+openId);
						yueziRemoteCache.remove("UID"+openId);
						//调用登录接口
						return this.processLogin(registerUser, request, requestUrl);
					}
				}else{
					logger.error("支付宝获取账户失败");
				}
			}
		}
		logger.info("返回页面Url={}", new Object[]{requestUrl});
		return "redirect:"+requestUrl;
	}
	
	private  String processLogin(UserBaseInfo baseInfoDO,HttpServletRequest request, String retUrl){
		alipayService.alipayLoginByUser(baseInfoDO, request);
		logger.info("支付宝绑定用户登录成功");
		String sessionId = Constant.getRemoteSessionId();
		String accessToken = sessionId;
		String userSecKey = DESUtil.encrypt(String.valueOf(baseInfoDO.getUserId()), SysCommand.DES_KEY);
		if(retUrl.indexOf("?") == -1){
			retUrl += "?accessToken="+accessToken+"&userSecKey="+userSecKey;
		}else{
			retUrl += "&accessToken="+accessToken+"&userSecKey="+userSecKey;
		}
		retUrl = MOBILE_HOST + "/?#" + retUrl; //移动端页面
		logger.info("回调前端地址：---{}",retUrl);
		return "redirect:" + retUrl;
	}
	
}

接口类

/**
 * 包名称 com.zxtg.zshop.alipay
 * 类名称 AlipayClient.java
 * 创建时间 2019-4-24下午5:10:05
 * Copyright (c) 2019, 牵手众享科技.
 *
 */
package com.zxtg.zshop.alibaba.alipay;

import com.alipay.api.AlipayApiException;
import com.alipay.api.request.AlipayFundTransOrderQueryRequest;
import com.alipay.api.request.AlipayFundTransToaccountTransferRequest;
import com.alipay.api.response.AlipayFundTransOrderQueryResponse;
import com.alipay.api.response.AlipayFundTransToaccountTransferResponse;
import com.alipay.api.response.AlipaySystemOauthTokenResponse;
import com.alipay.api.response.AlipayUserInfoShareResponse;

/**
 * @类名称 AlipayClient.java
 * @类描述 

 * @创建时间 2019-4-24 下午5:10:05
 * @版本 1.00
 *
 * @修改记录
 * 
 *     版本		 修改人 		修改日期 		 修改内容描述
 *     ----------------------------------------------
 *     1.00 	yzh 	 2019-4-24             
 *     ----------------------------------------------
 * 
 */
public interface IAlipayClient {

	//获取支付宝授权token
	public AlipaySystemOauthTokenResponse getAlipayOauthToken(String code,String grantType);
	
	//获取支付宝用户信息
	public AlipayUserInfoShareResponse getAlipayUserInfo(String authToken);
	
	//单笔转账到支付宝账户接口
	public AlipayFundTransToaccountTransferResponse  toaccountTransfer(AlipayFundTransToaccountTransferRequest request) throws AlipayApiException;
	
	//查询转账订单接口
	public AlipayFundTransOrderQueryResponse  orderQuery(AlipayFundTransOrderQueryRequest request) throws AlipayApiException;
}

实现类

/**
 * 包名称 com.zxtg.zshop.alipay.impl
 * 类名称 AlipayClientImpl.java
 * 创建时间 2019-4-24下午5:19:25
 * Copyright (c) 2019, 牵手众享科技.
 *
 */
package com.zxtg.zshop.alibaba.alipay.impl;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayFundTransOrderQueryRequest;
import com.alipay.api.request.AlipayFundTransToaccountTransferRequest;
import com.alipay.api.request.AlipaySystemOauthTokenRequest;
import com.alipay.api.request.AlipayUserInfoShareRequest;
import com.alipay.api.response.AlipayFundTransOrderQueryResponse;
import com.alipay.api.response.AlipayFundTransToaccountTransferResponse;
import com.alipay.api.response.AlipaySystemOauthTokenResponse;
import com.alipay.api.response.AlipayUserInfoShareResponse;
import com.zxtg.zshop.alibaba.alipay.IAlipayClient;
import com.zxtg.zshop.alibaba.alipay.constant.AlipayConstant;
import com.zxtg.zshop.alibaba.alipay.constant.AlipayConstant.AlipayGrantType;
import com.zxtg.zshop.jd.api.GoodsApi;

/**
 * @类名称 AlipayClientImpl.java
 * @类描述 

 * @创建时间 2019-4-24 下午5:19:25
 * @版本 1.00
 *
 * @修改记录
 * 
 *     版本		 修改人 		修改日期 		 修改内容描述
 *     ----------------------------------------------
 *     1.00 	yzh 	 2019-4-24             
 *     ----------------------------------------------
 * 
 */
@Service
public class AlipayClientImpl implements IAlipayClient {

	protected final Logger logger = LoggerFactory.getLogger(GoodsApi.class);
	

	/**
	 * @方法名称 getAlipayOauthToken
	 * @功能描述 

	 * @作者    yzh
	 * @创建时间 2019-4-25 下午2:06:31
	 * @param code
	 * @param grantType
	 * @return
	 */
	@Override
	public AlipaySystemOauthTokenResponse getAlipayOauthToken(String code, String grantType) {
		AlipayClient alipayClient = new DefaultAlipayClient(AlipayConstant.GATE_WAY, AlipayConstant.APP_ID, AlipayConstant.APP_PRIVATE_KEY, "json", AlipayConstant.CHARSET, AlipayConstant.ALIPAY_PUBLIC_KEY, "RSA2"); 
		AlipaySystemOauthTokenRequest request = new AlipaySystemOauthTokenRequest();
		if(AlipayGrantType.AUTH_CODE.equals(grantType)){
			request.setCode(code);
			request.setGrantType("authorization_code");
		}else if(AlipayGrantType.REFRESH_CODE.equals(grantType)){
			request.setRefreshToken(code);
			request.setGrantType("refresh_token");
		}else{
			return null;
		}
		
		try {
			AlipaySystemOauthTokenResponse oauthTokenResponse = alipayClient.execute(request);
			return oauthTokenResponse;
		} catch (Exception e) {
			logger.error("获取支付宝授权Token出错：" + e.getMessage());
		    e.printStackTrace();
		}		
		return null;
	}


	/**
	 * @方法名称 getAlipayUserInfo
	 * @功能描述 

	 * @作者    yzh
	 * @创建时间 2019-4-25 下午2:06:56
	 * @param authToken
	 * @return
	 */
	@Override
	public AlipayUserInfoShareResponse getAlipayUserInfo(String authToken) {
		AlipayClient alipayClient = new DefaultAlipayClient(AlipayConstant.GATE_WAY, AlipayConstant.APP_ID, AlipayConstant.APP_PRIVATE_KEY, "json", AlipayConstant.CHARSET, AlipayConstant.ALIPAY_PUBLIC_KEY, "RSA2"); 
		AlipayUserInfoShareRequest request = new AlipayUserInfoShareRequest();
		try {
		    AlipayUserInfoShareResponse userinfoShareResponse = alipayClient.execute(request, authToken);
		    return userinfoShareResponse;
		} catch (Exception e) {
			logger.error("获取支付宝用户信息出错：" + e.getMessage());
		    e.printStackTrace();
		}
		return null;
	}


	/**
	 * @方法名称 toaccountTransfer
	 * @功能描述 

	 * @作者    yzh
	 * @创建时间 2019-4-25 下午2:14:48
	 * @param request
	 * @return
	 * @throws AlipayApiException
	 */
	@Override
	public AlipayFundTransToaccountTransferResponse toaccountTransfer(
			AlipayFundTransToaccountTransferRequest request)
			throws AlipayApiException {
		AlipayClient alipayClient = new DefaultAlipayClient(AlipayConstant.GATE_WAY,AlipayConstant.APP_ID,AlipayConstant.APP_PRIVATE_KEY,"json",AlipayConstant.CHARSET,AlipayConstant.ALIPAY_PUBLIC_KEY,"RSA2");
		AlipayFundTransToaccountTransferResponse response = alipayClient.execute(request);
		if(response.isSuccess()){
			System.out.println("调用成功");
		} else {
			System.out.println("调用失败");
		}
		return response;
	}


	/**
	 * @方法名称 orderQuery
	 * @功能描述 

	 * @作者    yzh
	 * @创建时间 2019-4-25 下午2:14:48
	 * @param request
	 * @return
	 * @throws AlipayApiException
	 */
	@Override
	public AlipayFundTransOrderQueryResponse orderQuery(
			AlipayFundTransOrderQueryRequest request) throws AlipayApiException {
		AlipayClient alipayClient = new DefaultAlipayClient(AlipayConstant.GATE_WAY,AlipayConstant.APP_ID,AlipayConstant.APP_PRIVATE_KEY,"json",AlipayConstant.CHARSET,AlipayConstant.ALIPAY_PUBLIC_KEY,"RSA2");
		AlipayFundTransOrderQueryResponse response = alipayClient.execute(request);
		if(response.isSuccess()){
			System.out.println("调用成功");
		} else {
			System.out.println("调用失败");
		}
		return response;
	}

	
}

Constant类

/**
 * 包名称 com.zxtg.zshop.alipay.constant
 * 类名称 AlipayConstant.java
 * 创建时间 2019-4-24下午5:10:57
 *
 *
 */
package com.zxtg.zshop.alibaba.alipay.constant;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * @类名称 AlipayConstant.java
 * @类描述 

 * @创建时间 2019-4-24 下午5:10:57
 * @版本 1.00
 *
 * @修改记录
 * 
 *     版本		 修改人 		修改日期 		 修改内容描述
 *     ----------------------------------------------
 *     1.00 	yzh 	 2019-4-24             
 *     ----------------------------------------------
 * 
 */
public class AlipayConstant {

	public static class AlipayGrantType {
		public static final String AUTH_CODE = "authorization_code";
		public static final String REFRESH_CODE = "refresh_token";
	}
	

	public final static String APP_ID = "12154646121315";//自己的app_id
	public static String APP_PRIVATE_KEY = "";
	public static String ALIPAY_PUBLIC_KEY= "";
	public final static String APP_PRIVATE_KEY_PATH = "/cert_alipay/rsa_private_key_pkcs8.pem";
	public final static String ALIPAY_PUBLIC_KEY_PATH= "/cert_alipay/alipay_rsa_public_key.pem";
	public final static String CHARSET = "utf-8";
	
	public static final String SCOPE_AUTH_USER = "auth_user";
	public final static String GATE_WAY ="https://openapi.alipay.com/gateway.do";
	public static final String AUTHORIZE_URL = "https://openauth.alipay.com/oauth2/publicAppAuthorize.htm?app_id=APPID&scope=SCOPE&redirect_uri=ENCODED_URL&state=STATE";
	
	static{
		APP_PRIVATE_KEY = getKeyFileStr(APP_PRIVATE_KEY_PATH);
		ALIPAY_PUBLIC_KEY = getKeyFileStr(ALIPAY_PUBLIC_KEY_PATH);
	}
	
	public  static String getKeyFileStr(String filePath){
		StringBuffer buffer = new StringBuffer();
		try{
			InputStream instream = AlipayConstant.class
					.getResourceAsStream(filePath);
			InputStreamReader inputStreamReader = new InputStreamReader(
					instream, "utf-8");
			BufferedReader bufferedReader = new BufferedReader(
					inputStreamReader);
			String str = null;
			while ((str = bufferedReader.readLine()) != null) {
				if(str.indexOf("---")<0){
					buffer.append(str);
				}
			}
			bufferedReader.close();
			inputStreamReader.close();
			// 释放资源
			instream.close();
		}catch (Exception e) {
			e.printStackTrace();
		}
		return buffer.toString();
	} 
	
}

页面可调用 window.location.href = www.baidu.com + "/weChat/redirect?requestUrl=" + url;

url 为当前授权完需要返回的页面，授权完成之后跳转至url。

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