미니 프로그램의 레드엔벨로프 인터페이스 개발을 위한 예제 코드

WeChat 빨간 봉투 인터페이스를 개발하는 것은 실제로 어렵지 않습니다. 인터넷에 있는 여러 버전의 답변을 참조하세요.

빨간 봉투 포장 도구 수업:

package com.tepusoft.web.weixin.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import java.util.Set;
import java.util.SortedMap;
import java.util.TreeMap;
import java.util.UUID;
import javax.net.ssl.SSLContext;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContexts;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
/**
 * @author wangiegie
 * @date 2015年10月19日下午2:07:11
 * @description
 */
public class HongBaoUtil {
public static final String MCH_ID = ""; // 商户号
public static final String WXAPPID = ""; // 公众账号appid
public static final String NICK_NAME = "潍坊特普软件开发有限公司"; // 提供方名称
public static final String SEND_NAME = "潍坊特普软件"; // 商户名称
public static final int MIN_VALUE = ; // 红包最小金额 单位:分
public static final int MAX_VALUE = ; // 红包最大金额 单位:分
public static final int TOTAL_NUM = 1; // 红包发放人数
public static final String WISHING = "生日快乐"; // 红包祝福语
public static final String CLIENT_IP = "182.41.214.82"; // 调用接口的机器IP
public static final String ACT_NAME = "??"; // 活动名称
public static final String REMARK = "红包测试"; // 备注
public static final String KEY = ""; // 秘钥
public static final int FAIL = 0; // 领取失败
public static final int SUCCESS = 1; // 领取成功
public static final int LOCK = 2; // 已在余额表中锁定该用户的余额,防止领取的红包金额大于预算
/**
 * 对请求参数名ASCII码从小到大排序后签名
 * 
 * @param params
 */
public static void sign(SortedMap<String, String> params) {
Set<Entry<String, String>> entrys = params.entrySet();
Iterator<Entry<String, String>> it = entrys.iterator();
StringBuffer result = new StringBuffer();
while (it.hasNext()) {
Entry<String, String> entry = it.next();
result.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
}
result.append("key=").append(KEY);
params.put("sign", DigestUtils.md5Hex(result.toString()));
}
/**
 * 生成提交给微信服务器的xml格式参数
 * 
 * @param params
 * @return
 */
public static String getRequestXml(SortedMap<String, String> params) {
StringBuffer sb = new StringBuffer();
sb.append("<xml>");
Set es = params.entrySet();
Iterator it = es.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
String k = (String) entry.getKey();
String v = (String) entry.getValue();
if ("nick_name".equalsIgnoreCase(k) || "send_name".equalsIgnoreCase(k) || "wishing".equalsIgnoreCase(k)
|| "act_name".equalsIgnoreCase(k) || "remark".equalsIgnoreCase(k) || "sign".equalsIgnoreCase(k)) {
sb.append("<" + k + ">" + "<![CDATA[" + v + "]]></" + k + ">");
} else {
sb.append("<" + k + ">" + v + "</" + k + ">");
}
}
sb.append("</xml>");
return sb.toString();
}
/**
 * 创建map
 * 
 * @param billNo
 * @param openid
 * @param userId
 * @param amount
 * @return
 */
public static SortedMap<String, String> createMap(String openid, String userId, int amount) {
SortedMap<String, String> params = new TreeMap<String, String>();
params.put("wxappid", WXAPPID);
params.put("nonce_str", createNonceStr());
params.put("mch_billno", createBillNo(userId));
params.put("mch_id", MCH_ID);
params.put("nick_name", NICK_NAME);
params.put("send_name", SEND_NAME);
params.put("re_openid", openid);
params.put("total_amount", amount + "");
params.put("min_value", amount + "");
params.put("max_value", amount + "");
params.put("total_num", TOTAL_NUM + "");
params.put("wishing", WISHING);
params.put("client_ip", CLIENT_IP);
params.put("act_name", ACT_NAME);
params.put("remark", REMARK);
return params;
}
/**
 * 生成随机字符串
 * 
 * @return
 */
public static String createNonceStr() {
return UUID.randomUUID().toString().toUpperCase().replace("-", "");
}
/**
 * 生成商户订单号
 * 
 * @param mch_id
 *            商户号
 * @param userId
 *            该用户的userID
 * @return
 */
public static String createBillNo(String userId) {
// 组成： mch_id+yyyymmdd+10位一天内不能重复的数字
// 10位一天内不能重复的数字实现方法如下:
// 因为每个用户绑定了userId,他们的userId不同,加上随机生成的(10-length(userId))可保证这10位数字不一样
Date dt = new Date();
SimpleDateFormat df = new SimpleDateFormat("yyyymmdd");
String nowTime = df.format(dt);
int length = 10 - userId.length();
return MCH_ID + nowTime + userId + getRandomNum(length);
}
/**
 * 生成特定位数的随机数字
 * 
 * @param length
 * @return
 */
private static String getRandomNum(int length) {
String val = "";
Random random = new Random();
for (int i = 0; i < length; i++) {
val += String.valueOf(random.nextInt(10));
}
return val;
}
/**
 * post提交到微信服务器
 *
 * @param requestXML
 * @param instream  传入的在微信支付的PKCS12证书的位置
 * @return
 * @throws NoSuchAlgorithmException
 * @throws CertificateException
 * @throws IOException
 * @throws KeyManagementException
 * @throws UnrecoverableKeyException
 * @throws KeyStoreException
 */
public static String post(String requestXML, InputStream instream) throws Exception {
KeyStore keyStore = KeyStore.getInstance("PKCS12");
try {
keyStore.load(instream, MCH_ID.toCharArray());
} finally {
instream.close();
}
SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, MCH_ID.toCharArray()).build();
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[] { "TLSv1" }, null,
SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();
String result = "";
try {
HttpPost httpPost = new HttpPost("https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack");
StringEntity reqEntity = new StringEntity(requestXML, "utf-8"); // 如果此处编码不对，可能导致客户端签名跟微信的签名不一致
reqEntity.setContentType("application/x-www-form-urlencoded");
httpPost.setEntity(reqEntity);
CloseableHttpResponse response = httpclient.execute(httpPost);
try {
HttpEntity entity = response.getEntity();
if (entity != null) {
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(entity.getContent(), "UTF-8"));
String text;
while ((text = bufferedReader.readLine()) != null) {
result += text;
}
}
EntityUtils.consume(entity);
} finally {
response.close();
}
} finally {
httpclient.close();
}
return result;
}
}

전화:

@Test
public void testHongBao() throws Exception {
SortedMap<String, String> sortedMap = HongBaoUtil.createMap(openId, userId, money);
HongBaoUtil.sign(sortedMap);
String postXML = HongBaoUtil.getRequestXml(sortedMap);
FileInputStream instream = new FileInputStream(new File("证书文件地址"));
HongBaoUtil.post(postXML, instream);
}

알겠습니다...WeChat 결제 백엔드의 너무 많은 구성과 매개변수에 속지 마세요. WeChat 빨간 봉투 개발은 매우 간단합니다 ~

[관련 권장 사항]

1. 미니 프로그램 개발 및 통화 인터페이스 예시 튜토리얼 공유

2.

WeChat 애플릿 결제 인터페이스의 자세한 예시

3

WeChat에서 개발한 결제

위 내용은 미니 프로그램의 레드엔벨로프 인터페이스 개발을 위한 예제 코드의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!