From 9d65dd091154a0301076549e031e15017898c2ee Mon Sep 17 00:00:00 2001
From: peter <14100000001@qq.com>
Date: Sun, 11 Jan 2026 14:07:02 +0800
Subject: [PATCH] 签章
---
src/main/java/com/nq/service/impl/UserAgreementServiceImpl.java | 126 +++++++++++++++++++++++++++++++++++++-----
1 files changed, 111 insertions(+), 15 deletions(-)
diff --git a/src/main/java/com/nq/service/impl/UserAgreementServiceImpl.java b/src/main/java/com/nq/service/impl/UserAgreementServiceImpl.java
index 648c15e..3dbd397 100644
--- a/src/main/java/com/nq/service/impl/UserAgreementServiceImpl.java
+++ b/src/main/java/com/nq/service/impl/UserAgreementServiceImpl.java
@@ -33,6 +33,7 @@
import java.awt.RenderingHints;
import java.awt.Color;
import java.awt.FontMetrics;
+import java.awt.GraphicsEnvironment;
import com.nq.pojo.ContractImage;
import com.nq.dao.ContractImageMapper;
import com.alibaba.fastjson.JSON;
@@ -232,6 +233,110 @@
}
/**
+ * 从资源文件加载字体
+ */
+ private java.awt.Font loadFontFromResource(String fontPath, int size) {
+ try {
+ InputStream fontStream = this.getClass().getClassLoader().getResourceAsStream(fontPath);
+ if (fontStream != null) {
+ java.awt.Font font = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, fontStream);
+ font = font.deriveFont(java.awt.Font.PLAIN, size);
+ fontStream.close();
+ log.info("成功从资源文件加载字体: {}", fontPath);
+ return font;
+ }
+ } catch (Exception e) {
+ log.warn("从资源文件加载字体失败: {}, 错误: {}", fontPath, e.getMessage());
+ }
+ return null;
+ }
+
+ /**
+ * 从系统字体目录加载字体文件
+ */
+ private java.awt.Font loadFontFromFile(String fontPath, int size) {
+ try {
+ File fontFile = new File(fontPath);
+ if (fontFile.exists()) {
+ java.awt.Font font = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, fontFile);
+ font = font.deriveFont(java.awt.Font.PLAIN, size);
+ log.info("成功从文件加载字体: {}", fontPath);
+ return font;
+ }
+ } catch (Exception e) {
+ log.warn("从文件加载字体失败: {}, 错误: {}", fontPath, e.getMessage());
+ }
+ return null;
+ }
+
+ /**
+ * 获取可用的中文字体
+ */
+ private java.awt.Font getChineseFont(int size) {
+ // 1. 优先从资源文件加载字体（如果项目中有字体文件）
+ java.awt.Font font = loadFontFromResource("fonts/simsun.ttf", size);
+ if (font != null) return font;
+
+ font = loadFontFromResource("fonts/simhei.ttf", size);
+ if (font != null) return font;
+
+ // 2. 从系统字体目录加载（Linux常见字体路径）
+ String[] systemFontPaths = {
+ "/usr/share/fonts/chinese/simsun.ttf", // CentOS/RHEL
+ "/usr/share/fonts/truetype/wqy/wqy-microhei.ttf", // 文泉驿
+ "/usr/share/fonts/truetype/noto/NotoSansCJK-Regular.ttc", // Noto字体
+ "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", // DejaVu
+ "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf", // Liberation
+ "/usr/share/fonts/chinese/SimSun.ttf",
+ "/usr/share/fonts/chinese/SimHei.ttf",
+ "/usr/share/fonts/truetype/arphic/uming.ttc", // 文鼎字体
+ "/usr/share/fonts/truetype/arphic/ukai.ttc"
+ };
+
+ for (String fontPath : systemFontPaths) {
+ font = loadFontFromFile(fontPath, size);
+ if (font != null) return font;
+ }
+
+ // 3. 按优先级尝试加载系统已安装的字体
+ String[] fontNames = {
+ "SimSun", // 宋体 (Windows)
+ "SimHei", // 黑体 (Windows)
+ "Microsoft YaHei", // 微软雅黑 (Windows)
+ "STSong", // 华文宋体
+ "STHeiti", // 华文黑体
+ "WenQuanYi Micro Hei", // 文泉驿微米黑 (Linux)
+ "WenQuanYi Zen Hei", // 文泉驿正黑 (Linux)
+ "Noto Sans CJK SC", // Noto字体 (Linux)
+ "Droid Sans Fallback", // Android字体 (Linux)
+ "AR PL UMing CN", // 文鼎字体 (Linux)
+ "AR PL UKai CN" // 文鼎字体 (Linux)
+ };
+
+ GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
+ String[] availableFonts = ge.getAvailableFontFamilyNames();
+
+ // 查找可用的中文字体
+ for (String fontName : fontNames) {
+ for (String availableFont : availableFonts) {
+ if (availableFont.equals(fontName)) {
+ try {
+ font = new java.awt.Font(fontName, java.awt.Font.PLAIN, size);
+ log.info("成功加载系统字体: {}", fontName);
+ return font;
+ } catch (Exception e) {
+ log.warn("加载字体{}失败: {}", fontName, e.getMessage());
+ }
+ }
+ }
+ }
+
+ // 如果找不到中文字体，尝试使用逻辑字体
+ log.warn("未找到可用的中文字体，使用SERIF逻辑字体，可能出现乱码");
+ return new java.awt.Font(java.awt.Font.SERIF, java.awt.Font.PLAIN, size);
+ }
+
+ /**
* 创建透明背景的文本图片
*/
private File createTextImage(String text, Font font) throws Exception {
@@ -262,14 +367,10 @@
g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
- // 设置字体和颜色
- try {
- java.awt.Font awtFont = new java.awt.Font("SimSun", java.awt.Font.PLAIN, 12);
- g2d.setFont(awtFont);
- } catch (Exception e) {
- log.warn("无法加载SimSun字体，使用默认字体", e);
- g2d.setFont(new java.awt.Font(java.awt.Font.SANS_SERIF, java.awt.Font.PLAIN, 12));
- }
+ // 使用可用的中文字体
+ java.awt.Font awtFont = getChineseFont(12);
+ g2d.setFont(awtFont);
+
// 使用深黑色，RGB(0, 0, 0) 完全不透明
g2d.setColor(new Color(0, 0, 0, 255));
@@ -293,13 +394,8 @@
g2dResized.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2dResized.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
- // 设置字体
- try {
- java.awt.Font awtFont = new java.awt.Font("SimSun", java.awt.Font.PLAIN, 12);
- g2dResized.setFont(awtFont);
- } catch (Exception e) {
- g2dResized.setFont(new java.awt.Font(java.awt.Font.SANS_SERIF, java.awt.Font.PLAIN, 12));
- }
+ // 使用相同的中文字体
+ g2dResized.setFont(awtFont);
// 使用深黑色，RGB(0, 0, 0) 完全不透明
g2dResized.setColor(new Color(0, 0, 0, 255));
--
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