From 50164d95bfe34f532e3f2513a53f62c0864fe1a2 Mon Sep 17 00:00:00 2001
From: zhuo <2089219845@qq.com>
Date: 星期三, 07 五月 2025 18:11:31 +0800
Subject: [PATCH] 关闭流
---
ruoyi-common/src/main/java/com/ruoyi/common/utils/SignatureImageUtil.java | 66 +++++++++++++++++++++++++++++++++
1 files changed, 66 insertions(+), 0 deletions(-)
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/SignatureImageUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/SignatureImageUtil.java
new file mode 100644
index 0000000..15365c4
--- /dev/null
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/SignatureImageUtil.java
@@ -0,0 +1,66 @@
+package com.ruoyi.common.utils;
+
+import org.springframework.core.io.ClassPathResource;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.font.FontRenderContext;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+import java.io.*;
+
+/**
+ * @Author zhuo
+ * @Date 2025/5/7
+ */
+public class SignatureImageUtil {
+
+ /**
+ * 鏍规嵁涓枃瀵煎嚭绛惧悕鍥剧墖
+ * @param text
+ * @return
+ * @throws IOException
+ * @throws FontFormatException
+ */
+ public static InputStream saveImageToFile(String text){
+ // 鑾峰彇瀛椾綋搴�
+ Font font = null;
+ try (InputStream is = new ClassPathResource("/ttf/signature.ttf").getInputStream()) {
+ font = Font.createFont(Font.TRUETYPE_FONT, is).deriveFont(50f);
+ } catch (FontFormatException | IOException e) {
+ throw new RuntimeException(e);
+ }
+
+ int width = 100; // 鍥剧墖鐨勫搴�
+ int height = 50; // 鍥剧墖鐨勯珮搴�
+
+ BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
+ Graphics2D g2d = image.createGraphics();
+
+ g2d.setFont(font);
+
+ // 璁剧疆鏂囧瓧棰滆壊涓洪粦鑹�
+ g2d.setColor(Color.black);
+
+ // 璁剧疆鏂囧瓧鍦ㄥ浘鐗囦腑鐨勪綅缃�
+ FontRenderContext context = g2d.getFontRenderContext();
+ Rectangle2D bounds = font.getStringBounds(text, context);
+ double x = (width - bounds.getWidth()) / 2;
+ double y = (height - bounds.getHeight()) / 2;
+ double ascent = -bounds.getY();
+ double baseY = y + ascent;
+ g2d.drawString(text, (int) x, (int) baseY);
+ g2d.dispose();
+
+ ByteArrayOutputStream os = new ByteArrayOutputStream();
+
+ try {
+ ImageIO.write(image, "png", os);
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ }
+
+ return new ByteArrayInputStream(os.toByteArray());
+ }
+
+}
--
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