@service
public class wxpayserviceimpl implements wxpayservice
//把引數放在map中，準備進行簽名加密
mapmaps = new hashmap<>();
maps.put("openid", openid);
maps.put("mch_id", mch_id);
maps.put("nonce_str", nonce_str);
maps.put("body", body);
maps.put("out_trade_no", out_trade_no);
maps.put("total_fee", string.valueof(total_fee));
maps.put("trade_type", trade_type);
maps.put("notify_url", notify_url);
string spbill_create_ip = null;
string sign = null;
try catch (exception e)
//拼接需要傳送引數
+ "" + "" + mch_id + "" + ""
+ nonce_str + "" + "" + notify_url
+ "" + "" + out_trade_no
+ "" + "" + spbill_create_ip
+ "" + "" + total_fee
+ "" + "" + trade_type
+ "" + "" + sign + "" + ""
+ openid + "" + "";
/* api位址 */
string url = "";
mapresultmaps = new hashmap<>();
string result =null;
try catch (exception e)
resultmaps = xmlstrtomap(result);//返回結果是xml字串，轉換成map
//將統一下單返回的引數進行二次簽名加密
if(resultmaps.get("result_code").equals("success")&&resultmaps.get("return_code").equals("success")) catch (exception e)
//已準備好wx.requestpayment所需要的引數,返回引數給前端拉起支付！
mapovermap = new hashmap<>();
overmap.put("timestamp", timestamp);
overmap.put("noncestr", noncestr);
overmap.put("package", package1);
overmap.put("signtype", "md5");
overmap.put("paysign", paysign);
return overmap;
}else
}/* 傳送統一下單請求 */
public string fasong(string xmlinfo, string url) throws exception
reader.close();
// 該幹的都幹完了,記得把連線斷了
connection.disconnect();
return resultlin;
}/* string轉為map */
public mapxmlstrtomap(string xmlstr)
}} catch (exception e)
return map;
}/* 隨機生成32位字元 */
public string getram() ;
stringbuffer pwd = new stringbuffer("");
random r = new random();
while (count < 32)
}system.out.println(pwd.tostring());
return pwd.tostring();
}/* 簽名加密 */
public string qianming(string secretkey, mapmaps)
throws unsupportedencodingexception
// 3. 將secretkey拼接到最後
system.out.println(parambuffer);
string pa = parambuffer.substring(1);
// 4. md5是128位長度的摘要演算法，用16進製表示，乙個十六進製制的字元能表示4個位，所以簽名後的字串長度固定為32個十六進製制字元。
//return digestutils.md5hex(pa.getbytes("utf-8")).touppercase();
return digestutils.md5digestashex(pa.getbytes("utf-8")).touppercase();
}/* 獲取ip位址 */
public string getip() throws exception
}
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