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這篇文章主要為大家展示了“Java開發微信Navicat支付的示例分析”,內容簡而易懂,條理清晰,希望能夠幫助大家解決疑惑,下面讓小編帶領大家一起研究并學習一下“Java開發微信Navicat支付的示例分析”這篇文章吧。
一:準備工作
1:先去微信公眾平臺注冊一個公眾號,選擇服務號
2:去微信商戶平臺注冊一個商戶號,用于收款
3:在商戶號中配置對應的公眾號的APPID
4:支付結果異步通知(需要重點注意)
注意:請先詳細查看官方文檔按步驟開發,一切以官方文檔為主 微信Navicat支付官方文檔
5:測試的時候一定要使用內網穿透軟件,否則回調時會報錯
二:開發代碼
WeChatPayConfig:
public class WeChatPayConfig { //公眾號APPID private String APPID = ""; //商戶號KEY private String KEY = ""; //商戶號ID private String MCHID = ""; //支付完成后微信回調地址,需要外網能訪問要是域名,不能是127.0.0.1跟localhost private String NOTIFY_URL = ""; }
WeChatPayServcie:
public interface WeChatPayServcie { //微信支付下單 public Map<String,String> getWxpayUrl(Map<String, String> sourceMap); //訂單查詢 public String orderQuery(String out_trade_no); }
@Service public class WeChatPayServiceImpl implements WeChatPayServcie { /** * 微信支付請求 * @param sourceMap * @return */ public Map<String,String> getWxpayUrl(Map<String, String> sourceMap) { SortedMap<String, Object> signParams = new TreeMap<String, Object>(); String nonce_str = UUID.randomUUID().toString().trim().replaceAll("-", ""); signParams.put("appid", PayConfig.APPID); signParams.put("mch_id",PayConfig.MCHID); signParams.put("nonce_str",sourceMap.get("nonce_str")); signParams.put("product_id",sourceMap.get("prod_id")); signParams.put("body",sourceMap.get("body")); signParams.put("out_trade_no",sourceMap.get("out_trade_no")); signParams.put("total_fee",sourceMap.get("total_fee")); signParams.put("spbill_create_ip", WxUtil.getIp()); signParams.put("notify_url",PayConfig.NOTYFLY_URL); signParams.put("trade_type","NATIVE"); String sign = WxUtil.createSign(signParams,PayConfig.KEY); signParams.put("sign",sign); String xmlPackage = WxUtil.parseMapXML(signParams); Map<String, Object> resultMap = new HashMap(); try { String result = HttpUtil.post("https://api.mch.weixin.qq.com/pay/unifiedorder",xmlPackage); resultMap = WxUtil.parseXmlMap(result); } catch (Exception e) { e.printStackTrace(); } String returnCode = (String) resultMap.get("return_code"); String returnMsg = (String) resultMap.get("return_msg"); if (returnCode.equalsIgnoreCase("FAIL")) { throw new RuntimeException(returnMsg); } String result_code = (String) resultMap.get("result_code"); if (result_code.equalsIgnoreCase("FAIL")) { throw new RuntimeException(resultMap.get("err_code_des")); } String code_url = (String) resultMap.get("code_url"); Map<String,String> map = new HashMap<>(); map.put("code_url",code_url); map.put("out_trade_no",sourceMap.get("out_trade_no")); return map; } /** * 微信支付訂單查詢 * @param out_trade_no * @return */ public String orderQuery(String out_trade_no) { String nonce_str = UUID.randomUUID().toString().trim().replaceAll("-", ""); SortedMap<String, Object> signParams = new TreeMap<>(); signParams.put("appid", payConfig.getWeChatPorpetties().getAppId()); signParams.put("mch_id",payConfig.getWeChatPorpetties().getMchId()); signParams.put("out_trade_no",out_trade_no); signParams.put("nonce_str",nonce_str); String sign = WxUtil.createSign(signParams,payConfig.getWeChatPorpetties().getApiKey()); signParams.put("sign",sign); String xmlPackage = WxUtil.parseMapXML(signParams); Map<String, Object> resultMap = new HashMap(); try { String result = HttpUtil.post("https://api.mch.weixin.qq.com/pay/orderquery",xmlPackage); resultMap = WxUtil.parseXmlMap(result); } catch (Exception e) { e.printStackTrace(); throw new RuntimeException("渠道網絡異常"); } String returnCode = (String) resultMap.get("return_code"); String returnMsg = (String) resultMap.get("return_msg"); if (returnCode.equalsIgnoreCase(PayContants.FAIL)) { throw new RuntimeException(returnMsg); } String result_code = (String) resultMap.get("result_code"); if (result_code.equalsIgnoreCase(PayContants.FAIL)) { throw new RuntimeException(resultMap.get("err_code_des")); } String trade_state = (String) resultMap.get("trade_state"); return trade_state; } }
WeChatPayController:
/** * 微信支付接口 */ @Controller public class WxPayController { @Autowired WeChatPayServcie weChatPayServcie; /** * 微信支付下單 * payID可以不用傳自己生成32位以內的隨機數就好,要保證不重復 * totalFee金額一定要做判斷,判斷這筆支付金額與數據庫是否一致 */ @RequestMapping("pay") @ResponseBody public Map<String ,String> toWxpay(HttpServletRequest httpRequest,String payId, String totalFee, String body){ System.out.println("開始微信支付..."); Map<String, String> map = new HashMap<>(); String nonce_str = UUID.randomUUID().toString().trim().replaceAll("-", ""); //生成一筆支付記錄 //拼接支付參數 Map<String, String> paramMap = new HashMap<>(); paramMap.put("nonce_str", nonce_str); paramMap.put("prod_id", payId); paramMap.put("body", body); paramMap.put("total_fee", totalFee); paramMap.put("out_trade_no", payId); //發送支付請求并獲取返回參數與二維碼,用于支付與調用查詢接口 Map<String, String> returnMap = weChatPayServcie.getWxpayUrl(paramMap); httpRequest.setAttribute("out_trade_no", payId); httpRequest.setAttribute("total_fee", totalFee); //code_url就是二維碼URL,可以把這個URL放到草料二維碼中生成微信二維碼 httpRequest.setAttribute("code_url", returnMap.get("code_url")); map.put("out_trade_no", payId); map.put("total_fee", String.valueOf(bigDecimal)); map.put("code_url", returnMap.get("code_url")); return map; } /** * 查詢微信訂單 * ot_trade_no是支付 */ @RequestMapping("query") @ResponseBody public Root<String> orderQuery(String out_trade_no){ return weixinPayServcie.orderQuery(queryCallbackForm.getOut_trade_no()); } /** * 微信支付回調,這個地址就是Config中的NOTYFLY_URL */ @RequestMapping("callback") public void notify_url(HttpServletRequest request, HttpServletResponse response) throws DocumentException, ServletException, IOException,Throwable { System.out.print("微信支付回調獲取數據開始..."); String inputLine; String notityXml = ""; try { while ((inputLine = request.getReader().readLine()) != null) { notityXml += inputLine; } request.getReader().close(); } catch (Exception e) { WxUtil.sendXmlMessage(request,response, PayContants.FAIL); throw new RuntimeException("回調數據xml獲取失敗!"); } if(StringUtils.isEmpty(notityXml)){ WxUtil.sendXmlMessage(request,response, PayContants.FAIL); throw new RuntimeException("回調數據xml為空!"); } Map<String ,Object> resultMap = XMLParse.parseXmlMap(notityXml); String returnCode = (String) resultMap.get("return_code"); String returnMsg = (String) resultMap.get("return_msg"); if (returnCode.equalsIgnoreCase(PayContants.FAIL)) { WxUtil.sendXmlMessage(request,response, PayContants.FAIL); throw new RuntimeException(returnMsg); } String resultCode = (String) resultMap.get("result_code"); if (resultCode.equalsIgnoreCase(PayContants.FAIL)) { WxUtil.sendXmlMessage(request,response, PayContants.FAIL); throw new RuntimeException(resultMap.get("err_code_des")); } SortedMap<String ,Object> paramMap = new TreeMap<>(); paramMap.put("appid",resultMap.get("appid")); paramMap.put("mch_id",resultMap.get("mch_id")); paramMap.put("nonce_str",resultMap.get("nonce_str")); paramMap.put("body",resultMap.get("body")); paramMap.put("openid", resultMap.get("openid")); paramMap.put("is_subscribe",resultMap.get("is_subscribe")); paramMap.put("trade_type",resultMap.get("trade_type")); paramMap.put("bank_type",resultMap.get("bank_type")); paramMap.put("total_fee",resultMap.get("total_fee")); paramMap.put("fee_type",resultMap.get("fee_type")); paramMap.put("cash_fee",resultMap.get("cash_fee")); paramMap.put("transaction_id",resultMap.get("transaction_id")); paramMap.put("out_trade_no",resultMap.get("out_trade_no")); paramMap.put("time_end",resultMap.get("time_end")); paramMap.put("return_code",resultMap.get("return_code")); paramMap.put("return_msg",resultMap.get("return_msg")); paramMap.put("result_code",resultMap.get("result_code")); String out_trade_no = (String) resultMap.get("out_trade_no"); String sign = SignUtil.createSign(paramMap,WxPayConfig.KEY); String mySign =(String) resultMap.get("sign"); //回調一定要驗證簽名以防數據被篡改 if(sign.equals(mySign)){ System.out.println("回調簽名驗證成功!"); //修改業務邏輯,將那筆支付狀態改為已支付 } WxUtil.sendXmlMessage(request,response, PayContants.SUCCESS); }else{ WxUtil.sendXmlMessage(request,response, PayContants.FAIL); throw new RuntimeException("簽名不一致!"); } } }
WxUtil:
package com.ys.commons.utils.pay; import java.io.BufferedWriter; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.net.InetAddress; import java.net.UnknownHostException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; //微信工具類 public class WxUtil { //獲取當前IP public static String getIp() { try { String spbill_create_ip = InetAddress.getLocalHost().getHostAddress(); return spbill_create_ip; } catch (UnknownHostException var2) { var2.printStackTrace(); return "獲取IP失敗..."; } } //輸出xml格式 public static void sendXmlMessage(HttpServletRequest request, HttpServletResponse response, String content) { try { String contentXml = "<xml><return_code><![CDATA[" + content + "]]></return_code></xml>"; OutputStream os = response.getOutputStream(); BufferedWriter resBr = new BufferedWriter(new OutputStreamWriter(os)); resBr.write(contentXml); resBr.flush(); resBr.close(); } catch (IOException var6) { var6.printStackTrace(); } } //生成sign簽名 public static String createSign(SortedMap<String, Object> packageParams, String KEY) { StringBuffer sb = new StringBuffer(); Set<Entry<String, Object>> es = packageParams.entrySet(); Iterator it = es.iterator(); while(it.hasNext()) { Entry<String, Object> entry = (Entry)it.next(); String k = (String)entry.getKey(); String v = (String)entry.getValue(); if(null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) { sb.append(k + "=" + v + "&"); } } sb.append("key=" + KEY); String sign = MD5Util.MD5Encode(sb.toString(), "UTF-8").toUpperCase(); return sign; } //將map轉為xml public static String parseMapXML(SortedMap<String, Object> map) { String xmlResult = ""; StringBuffer sb = new StringBuffer(); sb.append("<xml>"); Iterator var3 = map.keySet().iterator(); while(var3.hasNext()) { String key = (String)var3.next(); String value = "<![CDATA[" + map.get(key) + "]]>"; sb.append("<" + key + ">" + value + "</" + key + ">"); System.out.println(); } sb.append("</xml>"); xmlResult = sb.toString(); return xmlResult; } //將xml轉為map public static Map<String, Object> parseXmlMap(String xml) throws DocumentException { Document document = DocumentHelper.parseText(xml); Element root = document.getRootElement(); List<Element> elementList = root.elements(); Map<String, Object> map = new HashMap(); Iterator var5 = elementList.iterator(); while(var5.hasNext()) { Element e = (Element)var5.next(); map.put(e.getName(), e.getText()); } return map; } }
發送請求需要推薦一個非常好用的工具,里面各種常用的工具都封裝好了hutool,如果想直接復制代碼使用也需要引入此工具的maven庫
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