1.2數據簽名 · 新版*泊鏈API接口文檔（車場平臺）

聯盟成員注冊后才能使用，注冊成功后，每個聯盟成員有一個身份ID和一個KEY，調用接口時必須傳入身份ID(參數名為：union_id)和用數據簽名。 sign生成方法：對請求中的data數據加上**key=分配給成員的KEY**，進行MD5并轉為大寫。示例：上傳車場信息原始請求為： {"data":{"park_id":"1001","name":"北京上地三街9號院停車場","address":"北京上地三街9號","phone":"139000334443","lng":"123.994449","city_id":110000,"lat":"332.466666","total_plot":90,"empty_plot":56,"union_id":10001,"price_desc":"2元每小時","rand":"0.210354312785198048"}} 簽名方法： data后面加上：key=NQ0eSXs720170114 得到（NQ0eSXs720170114為分配給聯盟成員的KEY）：{"park_id":"1001","name":"北京上地三街9號院停車場","address":"北京上地三街9號","phone":"139000334443","lng":"123.994449","city_id":110000,"lat":"332.466666","total_plot":90,"empty_plot":56,"union_id":10001,"price_desc":"2元每小時","rand":"0.210354312785198048"}key=NQ0eSXs720170114 對上面的字符串MD5并大寫得到：F2BA9A4E4362E2C41676FC720B14290C，在MD5方法中，取字節時使用**utf-8碼** 請求數據為： {"data":{"park_id":"1001","name":"北京上地三街9號院停車場","address":"北京上地三街9號","phone":"139000334443","lng":"123.994449","city_id":110000,"lat":"332.466666","total_plot":90,"empty_plot":56,"union_id":10001,"price_desc":"2元每小時","rand":"0.210354312785198048"},"sign":"F2BA9A4E4362E2C41676FC720B14290C"} 返回結果： {"park_id":"1001","state":1}