package dao
import scala.collection.mutable.ListBuffer
import scala.io.Source
class BorrowRecordDAO {def loadBorrowRecords(): ListBuffer[BorrowRecordModel] = {
val borrowRecords = ListBuffer[BorrowRecordModel]()
val lines = Source.fromFile("borrow_records.txt")
for(line <- lines.getLines()){
val Array(userName,bookID,bookName,borrowDate,returnDate) = line.split(",")
borrowRecords += BorrowRecordModel(userName,bookID.toInt,bookName,borrowDate,Some(returnDate))
}
borrowRecords
}
// 写入借阅记录
def saveBorrowRecords(records: ListBuffer[BorrowRecordModel]): Unit = {
val writer = new java.io.PrintWriter("borrow_records.txt")
for(record <- records){
writer.println(record.userName+","+record.bookID+","+record.bookName+","+record.borrowDate+","+record.returnDate.getOrElse(""))
}
writer.close()
}
}
BorrowRecordDAO
yzj2311282024-12-22 11:08
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