Как я могу подключитьScala.js с базой данных mySQL?

Question

Как подключить метод контроллера Scala.js с помощью базы данных mySQL?

Это то, что я до сих пор:

case class data(user_d: String, udid: String, image: String) 

object mysqlDAO { 
    def findById(udid: Long): Option[data] = { 
    val connection = DriverManager.getConnection("jdbc:mysql://localhost:3307/umo", "root", "") 

    try { 
     val statement = connection.prepareStatement("""select * from messages where udid = ?""") 
     statement.setLong(1, udid) 
     val rs = statement.executeQuery() 
     if (rs.next()) 
     Option(new data(rs.getString(1), rs.getString(2), rs.getString(3))) 
     else 
     Option.empty 
    } finally { 
     connection.close() 
    } 
    } 
} 

Answer 1

first of all you can create the case class in Model package then u can create object and serialize the your case class Data 


    ---------- 


    case class Data(user_id: String, id: String, image: String) 

    object Data { 
    /* this one is the serialization of the data*/ 
     implicit val DataWrites = new Writes[Data] { 
     def writes(json_write: Data): JsValue = { 
      Json.obj(
      "user_id" -> json_write.user_id, 
      "id" -> json_write.id, 
      "image" -> json_write.image 

     ) 
     } 
     } 
     val simple = { 
     get[String]("user.user_id") ~ 
      get[String]("user.id") ~ 
      get[String]("user.image") map { 
      case user_id ~ id ~ image => 
       Data(user_id, id, image) 
      } 
     } 
     /*to get the data */ 
     def find(udid: String): Option[Data] = { 
     DB.withConnection { implicit connection => 
      SQL(ConstantSQL.GET_DETAILS).on('uid -> id).as(Data.simple.singleOpt) 
     } 
     } 

    } 


    ---------- 
    //query for to get the data based on the uid 
    val GET_DETAILS = """select * from user_image where uid = ?""" 

    then u can create your own controller method 


    ---------- 


    var uDetails = Data.find(uid) 


    ---------- 
    use the above line to get the data in your class