Spring + Kotlin + itextpdf

Question

package com.cmn.dt.event.service
import com.cmn.dt.event.dto.EventResponseDto
import com.itextpdf.text.pdf.*
import com.itextpdf.text.pdf.PdfWriter
import com.itextpdf.text.pdf.PdfReader
import com.itextpdf.text.pdf.PdfImportedPage
import org.springframework.stereotype.Service
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream

@Service
class GenerateFDS {
   
    fun eventReport(event: EventResponseDto): ByteArrayInputStream {
        val document = Document()
        val out = ByteArrayOutputStream()
        PdfWriter.getInstance(document, out)
        document.open()

        val reader = PdfReader("FDS.pdf")
        PdfWriter.getImportedPage(reader,1)

我有这个错误

GenerateFDS.kt: (40, 38): 未解析的引用：getImportedPage

我不明白为什么。感谢您的帮助。

Answer 1

fun eventReport(event: EventResponseDto): ByteArrayInputStream {
    val document = Document()
    val out = ByteArrayOutputStream()
    val writer = PdfWriter.getInstance(document, out)
    document.open()
    val reader = PdfReader("FDS.pdf")
    val imported = writer.getImportedPage(reader,1)

这段代码没问题。