From 237d7c42498806a3ca205f63d151671a45304854 Mon Sep 17 00:00:00 2001
From: feiyu02 <risaku@163.com>
Date: 星期四, 28 七月 2022 09:19:11 +0800
Subject: [PATCH] 1. 承诺书pdf生产模块
---
src/main/kotlin/cn/flightfeather/supervision/infrastructure/utils/FileUtil.kt | 31 ++++++++++++++++++++++++++++++-
1 files changed, 30 insertions(+), 1 deletions(-)
diff --git a/src/main/kotlin/cn/flightfeather/supervision/infrastructure/utils/FileUtil.kt b/src/main/kotlin/cn/flightfeather/supervision/infrastructure/utils/FileUtil.kt
index 6b858bf..2c14d00 100644
--- a/src/main/kotlin/cn/flightfeather/supervision/infrastructure/utils/FileUtil.kt
+++ b/src/main/kotlin/cn/flightfeather/supervision/infrastructure/utils/FileUtil.kt
@@ -1,10 +1,21 @@
package cn.flightfeather.supervision.infrastructure.utils
+import net.coobird.thumbnailator.Thumbnails
+import net.coobird.thumbnailator.tasks.io.FileImageSource
+import org.springframework.util.Base64Utils
+import java.awt.Image
+import java.awt.image.BufferedImage
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
import java.io.File
import java.io.FileOutputStream
+import java.util.*
+import javax.imageio.ImageIO
-class FileUtil {
+object FileUtil {
+ private const val SCHEME_PNG = "data:image/png;base64,"
+
@Throws(Exception::class)
fun uploadFile(file: ByteArray, filePath: String, fileName: String) {
val targetFile = File(filePath)
@@ -29,4 +40,22 @@
}
return ""
}
+
+ /**
+ * 鎸夌収鍥哄畾瀹藉害鍘嬬缉鍥剧墖鑷砨ase64褰㈠紡
+ */
+ fun compressImage2(bytes: ByteArray, w: Int): String {
+ val input = ByteArrayInputStream(bytes)
+ val srcImg = ImageIO.read(input)
+ val srcW = srcImg.width
+ val scale = w.toFloat() / srcW
+ val h = (srcImg.height * scale).toInt()
+
+ val buffImg = BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB)
+ buffImg.graphics.drawImage(srcImg.getScaledInstance(w, h, Image.SCALE_SMOOTH), 0, 0, null)
+ val out = ByteArrayOutputStream()
+ ImageIO.write(buffImg, "PNG", out)
+
+ return SCHEME_PNG + Base64.getEncoder().encodeToString(out.toByteArray())
+ }
}
\ No newline at end of file
--
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