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： **原始請求為：** {"data":{"name":"張三","time":"2022-02-24 16:20:41","pass_type":"in","user_type":"2","id_number":"1234567890","telephone":"18799098765","face_img":"test","code":"test","user_code":"1","gate_name":"test","aisle_name":"test1"}} **簽名方法：** data后面加上：key=7B315B512350500E 得到（7B315B512350500E為分配給聯盟成員的KEY）： {"name":"張三","time":"2022-02-24 16:20:41","pass_type":"in","user_type":"2","id_number":"1234567890","telephone":"18799098765","face_img":"test","code":"test","user_code":"1","gate_name":"test","aisle_name":"test1"}key=7B315B512350500E 對上面的字符串MD5并大寫得到：0427A04F49FE3E25804C12999F45A96C，在MD5方法中，取字節時使用**utf-8碼** **請求數據為：** {"platform\_name":?"shanghai","union\_id":?"200538","sign":?"0427A04F49FE3E25804C12999F45A96C","timestamp":?"1645690842","data":?{?"name":?"張三","time":?"2022-02-24?16:20:41","pass\_type":?"in","user\_type":?"2",?"id\_number":?"1234567890","telephone":?"18799098765","face\_img":?"test","code":?"test","user\_code":?"1","gate\_name":?"test","aisle\_name":?"test1"????} } 返回結果： {"code":1,"data":"{\\"state\\":1,\\"message\\":\\"上報成功\\"}","message":"成功"}