spring boot微信h5,native支付 APIV3

因为本人比较懒不想写太过于理论的东西所以直接开始上操作

微信APIV3支付 开始上操作了

支付前准备
APP_ID：应用id
MchId : 商户号
privateKey ：私钥字符串
mchSerialNo ：证书序列号
apiV3Key ： APIV3秘钥
domain：“”native支付的链接 https://api.mch.weixin.qq.com/v3/pay/transactions/native“”
h5Domain：“”h5支付的请求链接 https://api.mch.weixin.qq.com/v3/pay/transactions/h5“”
notify_url ：“”支付成功后的回调地址“”

开始上代码了
导入jar


```java<!--微信支付依赖包--><dependency><groupId>com.github.wxpay</groupId><artifactId>wxpay-sdk</artifactId><version>0.0.3</version></dependency><!--微信支付SDK--><dependency><groupId>com.github.wechatpay-apiv3</groupId><artifactId>wechatpay-apache-httpclient</artifactId><version>0.3.0</version></dependency><!--发送http请求--><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId></dependency>

``
支付请求类
package com.tm.forum.common.utils;

import com.alibaba.fastjson.JSONObject;
import com.github.wxpay.sdk.WXPayUtil;
import com.tm.forum.common.utils.ip.IpUtils;
import com.tm.forum.system.domain.order.Order;
import com.wechat.pay.contrib.apache.httpclient.WechatPayHttpClientBuilder;
import com.wechat.pay.contrib.apache.httpclient.auth.*;
import com.wechat.pay.contrib.apache.httpclient.util.PemUtil;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.util.EntityUtils;

import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.security.PrivateKey;
import java.util.*;

public class WXPayPubUtil {

public static final String APP_ID = "w*****************b";/*** 贸友圈 APPId*/
public static final String M_APP_ID = "wx**********e85";public static final String PARTNER = "1***********01";public static final String PARTNER_KEY = "fsB2b***************888";public static final String PAY_URL = "https://api.mch.weixin.qq.com/pay/unifiedorder";public static final String QRY_URL = "https://api.mch.weixin.qq.com/pay/orderquery";/*** 微信支付的AppId*/
public static final String AppId = "w*********0b";/*** 微信支付的商户号(mchid)*/
public static final String MchId = "1********01";/**微信支付的secret参数*/
private static final String Secret = "d81****************27f9e";/*** 私钥字符串*/
public static final String privateKey = "MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDwnTWYsG6RwTyu\n" +"L09j6a*************4++YnzMFiXkRkiONjdyS8Iefz5/DEvTuiGgFd\n" +"jqerQVx3x3U7a7RKyUQensjDDbctXLfpiGrwDQs+OOZRQpFHcWqPWrsBfgwfOvqW\n" +"LxRBg1YLvdGjCHcXR2asXO6/IgrcOs8mz1OXkLoWjW/MnIyRS0dX3pxPfdneAeMW\n" +"kbcKgttjDPUJZc7oRvcw0Kdj4NRNjnAIW3A5qwlXHkE+hBzUcPkgZkckROPoXgdY\n" +"0uLgw4Wk*************Y2cCIb\n" +"x/AWWb69AgMBAAECggEBAMTTNQakPK6KbgLmvIC0mel8/xpJI1v9NMeUrqIs6UwO\n" +"cyVXf1HiXvwGZkv1KF2lNsL0*************L7Fc6feVO6++tjCtbW\n" +"o7MrXp7jbLEHhpAubf0NL+f4hkUgQPZDHr0/4cf9kaOlMRm2UQT/6WNR2hML2+pt\n" +"stUlVd1l8gwe2HpKgrr1zatamGKfhnlU8lF8Ny0NOjGh6MQ0MCEU8cgs1LmEHdWr\n" +"jRzF7RfysXavDONCilAePvBJlvkZTEwaCI6utMytLEZFONQMcbcrl2xSTpaSbilk\n" +"MEx7MOyd3pbkKIDCW5*************/05dmHBWGTUUePpV\n" +"ycezES6sg278AhZM+WtXdhO50wIlRPkkVvgdLr3tWMWIBw9WEy+HRhAFIC8oqVga\n" +"meODmExVtBC6quw5D4/SV9658ljDNSXLQLAFdKzSvENhJ2EcGXSiGKw382M0pZNW\n" +"KOJLUY6e8iOntC/dP5JTzZQTjzkCgYEA8USfGbfmdoFLjvRqIYLtnki1//HIzp37\n" +"x2Fyng5Jev1NhbnM6cOTmRK7IjKdHBVFTzKlVuXLCUSIKB65cPk7xdwwjY/7KN3b\n" +"u1sjHj2h5B2U3rKSdaVFsePimjmcUC8uEf8x1iass0kLkEMO7hA1oPK5QKnX4+c6\n" +"POXrW9mS56*************ujTBtXTE9DgY8Z1SpcDqxPgmJM2kUQg\n" +"uN3o+i889qCnbUUHaZKsBLu7ugeB2jVnA+Z+e2SXL+Jdr21+IG38Ufe5und1Pf3g\n" +"xyzMDly0abTd4z47mhzV1nX9LobZAvXU2pejTUVa/36Ri8mUa1aARmXM+uECgYAs\n" +"peZLfBzKEWNKMTDywqf2gr4rfzMKCXJukzoCxeITQIz4Eko5eFf4G99FlNg+OjF5\n" +"VoYCbsQE*************COsGX2Lt880y\n" +"x2cRmlabVwksyTwaEiXagxCFRukM492DJ4lGlhz5gQKBgQCsIdwrUSLivDsf7xqc\n" +"ur6+mM7PruV*************8SrEdwJeLWeK\n" +"1hIsW1naH3*************Q\n" +"zFhKvrPBJ1LgswRZeC90wWq3NA==";/*** 证书序列号*/
public static final String mchSerialNo = "63C*************E";/*** APIv3密钥*/
public static final String apiV3Key = "fsB2b*************88";private static final String domain = "https://api.mch.weixin.qq.com/v3/pay/transactions/native";/*** h5*/
private static final String h5Domain = "https://api.mch.weixin.qq.com/v3/pay/transactions/h5";/*** JSAPI*/
private static final String jsDomain = "https://api.mch.weixin.qq.com/v3/pay/partner/transactions/jsapi";/*** 子应用id*/
private static final String sub_appid = "wx6*************e85";/*** 子商户id*/
private static final String sub_mchid = "127*************1";/*** native 支付* @return*/
public static String createNative(Order order) throws IOException {PrivateKey mePrivateKey = PemUtil.loadPrivateKey(new ByteArrayInputStream(privateKey.getBytes(StandardCharsets.UTF_8)));AutoUpdateCertificatesVerifier verifier = new AutoUpdateCertificatesVerifier(new WechatPay2Credentials(MchId, new PrivateKeySigner(mchSerialNo, mePrivateKey)), apiV3Key.getBytes(StandardCharsets.UTF_8));CloseableHttpClient httpClient = WechatPayHttpClientBuilder.create().withMerchant(MchId, mchSerialNo, mePrivateKey).withValidator(new WechatPay2Validator(verifier)).build();HttpPost httpPost = new HttpPost(domain);JSONObject jsonObject = new JSONObject();JSONObject jsonObject1 = new JSONObject();if (order.getUserId() == 223695) {jsonObject1.put("total" , 1);} else {jsonObject1.put("total" , order.getRmbPrice().longValue() * 100);}jsonObject1.put("currency" , "CNY");jsonObject.put("amount" , jsonObject1);jsonObject.put("mchid" , MchId);jsonObject.put("description" , order.getName());jsonObject.put("notify_url" , "https://api.tr********************/allback");    // 回调地址jsonObject.put("out_trade_no" , order.getOutTradeNo());jsonObject.put("appid" , AppId);StringEntity stringEntity = new StringEntity(jsonObject.toJSONString(), "utf-8");stringEntity.setContentType("application/json");httpPost.setEntity(stringEntity);httpPost.setHeader("Accept" , "application/json");CloseableHttpResponse response = httpClient.execute(httpPost);Integer statusCode = response.getStatusLine().getStatusCode();String codeUrl = EntityUtils.toString(response.getEntity());String qrCode = codeUrl.substring(codeUrl.indexOf("w"), codeUrl.indexOf("}") - 1);// 生成二维码String code = QRCodeUtil.getBase64QRCode(qrCode);return code;
}/***  h5支付* @return*/
public static String mCreateNative(Order order, HttpServletRequest request) throws IOException {PrivateKey mePrivateKey = PemUtil.loadPrivateKey(new ByteArrayInputStream(privateKey.getBytes(StandardCharsets.UTF_8)));AutoUpdateCertificatesVerifier verifier = new AutoUpdateCertificatesVerifier(new WechatPay2Credentials(MchId, new PrivateKeySigner(mchSerialNo, mePrivateKey)), apiV3Key.getBytes(StandardCharsets.UTF_8));CloseableHttpClient httpClient = WechatPayHttpClientBuilder.create().withMerchant(MchId, mchSerialNo, mePrivateKey).withValidator(new WechatPay2Validator(verifier)).build();HttpPost httpPost = new HttpPost(h5Domain);JSONObject jsonObject = new JSONObject();JSONObject jsonObject1 = new JSONObject();if (order.getUserId() == 223695) {jsonObject1.put("total" , 1);} else {jsonObject1.put("total" , order.getRmbPrice().longValue() * 100);}jsonObject1.put("currency" , "CNY");jsonObject.put("amount" , jsonObject1);JSONObject jsonObject2 = new JSONObject();jsonObject2.put("payer_client_ip" , IpUtils.getIpAddr(request));JSONObject jsonObject3 = new JSONObject();String[] str = {"iOS" , "Android" , "Wap"};jsonObject3.put("type" , "Wap");jsonObject2.put("h5_info" , jsonObject3);jsonObject.put("scene_info" , jsonObject2);jsonObject.put("mchid" , MchId);jsonObject.put("description" , order.getName());//https://api.trademanager.com/api/wechat/callbacjsonObject.put("notify_url" , "https://api******************wechat/callback");jsonObject.put("out_trade_no" , order.getOutTradeNo());jsonObject.put("appid" , APP_ID);System.out.println(jsonObject.toJSONString());StringEntity stringEntity = new StringEntity(jsonObject.toJSONString(), "utf-8");stringEntity.setContentType("application/json");httpPost.setEntity(stringEntity);httpPost.setHeader("Accept" , "application/json");CloseableHttpResponse response = httpClient.execute(httpPost);Integer statusCode = response.getStatusLine().getStatusCode();String codeUrl = EntityUtils.toString(response.getEntity());JSONObject jsonObject4 = JSONObject.parseObject(codeUrl);

// String qrCode = codeUrl.substring(codeUrl.indexOf(“w”), codeUrl.indexOf(“}”) - 1);
// 生成二维码
// String code = QRCodeUtil.getBase64QRCode(qrCode);
return jsonObject4.getString(“h5_url”);
}

/*** @param out_trade_no 订单id* @return*/
public static Map queryPayStatus(String out_trade_no) {Map param = new HashMap();param.put("appid" , APP_ID);param.put("mch_id" , PARTNER);param.put("out_trade_no" , out_trade_no);param.put("nonce_str" , WXPayUtil.generateNonceStr());try {String xmlParam = WXPayUtil.generateSignedXml(param, PARTNER_KEY);HttpUtil client = new HttpUtil(QRY_URL);client.setHttps(true);client.setXmlParam(xmlParam);client.post();String result = client.getContent();Map<String, String> map = WXPayUtil.xmlToMap(result);if (map.get("err_code") != null && map.get("err_code").equals("ORDERNOTEXIST")) {System.out.println("订单不存在!");}if (map.get("trade_state").equals("SUCCESS")) {//支付成功，未支付为：NOTPAY}return map;} catch (Exception e) {e.printStackTrace();return null;}
}/*** 获取微信请求头** @param request* @return* @throws IOException*/
public static String getRequestBody(HttpServletRequest request) throws IOException {ServletInputStream stream = null;BufferedReader reader = null;StringBuffer sb = new StringBuffer();try {stream = request.getInputStream();// 获取响应reader = new BufferedReader(new InputStreamReader(stream));String line;while ((line = reader.readLine()) != null) {sb.append(line);}} catch (IOException e) {throw new IOException("读取返回支付接口数据流出现异常！");} finally {reader.close();}return sb.toString();
}/*** @param order jsApi支付* @return*/
public static String jsApiCreateNative(Order order, HttpServletRequest request) throws IOException {PrivateKey mePrivateKey = PemUtil.loadPrivateKey(new ByteArrayInputStream(privateKey.getBytes(StandardCharsets.UTF_8)));AutoUpdateCertificatesVerifier verifier = new AutoUpdateCertificatesVerifier(new WechatPay2Credentials(MchId, new PrivateKeySigner(mchSerialNo, mePrivateKey)), apiV3Key.getBytes(StandardCharsets.UTF_8));CloseableHttpClient httpClient = WechatPayHttpClientBuilder.create().withMerchant(MchId, mchSerialNo, mePrivateKey).withValidator(new WechatPay2Validator(verifier)).build();HttpPost httpPost = new HttpPost(jsDomain);JSONObject jsonObject = new JSONObject();JSONObject jsonObject1 = new JSONObject();if (order.getUserId() == 223695) {jsonObject1.put("total" , 1);} else {jsonObject1.put("total" , order.getRmbPrice().longValue() * 100);}jsonObject1.put("currency" , "CNY");jsonObject.put("amount" , jsonObject1);jsonObject.put("sp_mchid" , "");                     // 服务商户号jsonObject.put("sub_mchid" , "");                    // 子商户号jsonObject.put("sp_appid" , "");                     // 服务商应用IDjsonObject.put("sub_appid" , "");                    // 子商户应用IDjsonObject.put("sub_appid" , "");                    // 子商户应用IDjsonObject.put("description" , order.getName());jsonObject.put("notify_url" , "https://api.trademanager.com/api/wechat/callback");jsonObject.put("out_trade_no" , order.getOutTradeNo());JSONObject jsonObject2 = new JSONObject();jsonObject2.put("sp_openid" , "");jsonObject.put("payer" , jsonObject2);                // 支付者信息System.out.println(jsonObject.toJSONString());StringEntity stringEntity = new StringEntity(jsonObject.toJSONString(), "utf-8");stringEntity.setContentType("application/json");httpPost.setEntity(stringEntity);httpPost.setHeader("Accept" , "application/json");CloseableHttpResponse response = httpClient.execute(httpPost);Integer statusCode = response.getStatusLine().getStatusCode();String codeUrl = EntityUtils.toString(response.getEntity());JSONObject jsonObject4 = JSONObject.parseObject(codeUrl);return jsonObject4.getString("prepay_id");
}

}

注: 复制粘贴就能用改改配置参数不知道参数这么获取的官方文档有告诉你参数在哪

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