日常事务-处分管理 添加印章图片签名验证功能

- 实现了图片签名工具类ImageSignUtils，支持生成和验证带时间戳的签名URL
- 配置SecurityConfig允许匿名访问签名的印章图片URL，但Base64接口需认证
- 创建StampController提供受保护的印章图片访问接口
- 将应用默认文件路径配置改为Windows环境路径
- 支持通过签名URL安全访问印章图片资源

srs-admin/src/main/java/com/srs/web/controller/common/StampController.java

@@ -0,0 +1,74 @@
+package com.srs.web.controller.common;
+
+import com.srs.common.config.SrsConfig;
+import com.srs.common.core.controller.BaseController;
+import com.srs.common.core.domain.AjaxResult;
+import com.srs.common.utils.sign.ImageSignUtils;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.*;
+
+import javax.servlet.http.HttpServletRequest;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.Base64;
+
+/**
+ * 受保护图片接口
+ * 提供签名URL的图片访问
+ */
+@RestController
+@RequestMapping("/common/stamp")
+@Api(value = "受保护图片管理", tags = "受保护图片管理")
+public class StampController extends BaseController {
+
+    /**
+     * 获取印章图片的Base64编码（需要登录验证）
+     */
+    @GetMapping("/base64")
+    @ApiOperation("获取印章图片Base64编码")
+    public AjaxResult getStampBase64() {
+        String stampPath = SrsConfig.getProfile() + "/stamp/stamp.jpg";
+        File file = new File(stampPath);
+        
+        if (!file.exists()) {
+            return error("印章图片不存在");
+        }
+        
+        try (FileInputStream fis = new FileInputStream(file)) {
+            byte[] bytes = new byte[(int) file.length()];
+            fis.read(bytes);
+            String base64 = Base64.getEncoder().encodeToString(bytes);
+            String dataUrl = "data:image/jpeg;base64," + base64;
+            return success(dataUrl);
+        } catch (IOException e) {
+            return error("读取印章图片失败");
+        }
+    }
+    
+    /**
+     * 获取印章图片的Base64编码（指定文件名）
+     */
+    @GetMapping("/base64/{fileName}")
+    @ApiOperation("获取印章图片Base64编码")
+    public AjaxResult getStampBase64ByName(@PathVariable String fileName) {
+        String stampPath = SrsConfig.getProfile() + "/stamp/" + fileName;
+        File file = new File(stampPath);
+        
+        if (!file.exists()) {
+            return error("印章图片不存在");
+        }
+        
+        try (FileInputStream fis = new FileInputStream(file)) {
+            byte[] bytes = new byte[(int) file.length()];
+            fis.read(bytes);
+            String base64 = Base64.getEncoder().encodeToString(bytes);
+            String mimeType = fileName.toLowerCase().endsWith(".png") ? "image/png" : "image/jpeg";
+            String dataUrl = "data:" + mimeType + ";base64," + base64;
+            return success(dataUrl);
+        } catch (IOException e) {
+            return error("读取印章图片失败");
+        }
+    }
+}

srs-admin/src/main/resources/application.yml

@@ -9,7 +9,7 @@ srs:
   # 实例演示开关
   demoEnabled: true
   # 文件路径 示例( Windows配置D:/srs/uploadPath,Linux配置 /home/srs/uploadPath)#D:/srs/uploadPath
-  profile: /usr/local/java/srs/uploadPath  #/usr/local/java/srs/uploadPath
+  profile: D:/srs/uploadPath  #/usr/local/java/srs/uploadPath
   #profile: D:/srs/uploadPath  #/srs/uploadPath
   # 获取ip地址开关
   addressEnabled: false