【issues/7954】BasicUpload组件上传文件，限制上传格式校验出错 ---

jeecgboot-vue3/src/components/Upload/src/helper.ts

@@ -1,9 +1,43 @@
 export function checkFileType(file: File, accepts: string[]) {
-  const newTypes = accepts.join('|');
-  // const reg = /\.(jpg|jpeg|png|gif|txt|doc|docx|xls|xlsx|xml)$/i;
-  const reg = new RegExp('\\.(' + newTypes + ')$', 'i');
-
-  return reg.test(file.name);
+  // update-begin--author:liaozhiyang---date:20250318---for：【issues/7954】BasicUpload组件上传文件，限制上传格式校验出错
+  const mimePatterns: string[] = [];
+  const suffixList: string[] = [];
+  // 分类处理 accepts
+  for (const item of accepts) {
+    if (item.includes('/')) {
+      mimePatterns.push(item);
+    } else {
+      // 支持.png 或 png（带点后缀或者不带点后缀）
+      const suffix = item.startsWith('.') ? item.slice(1) : item;
+      suffixList.push(suffix);
+    }
+  }
+  // 后缀匹配逻辑
+  let suffixMatch = false;
+  if (suffixList.length > 0) {
+    const suffixRegex = new RegExp(`\\.(${suffixList.join('|')})$`, 'i');
+    suffixMatch = suffixRegex.test(file.name);
+  }
+  // MIME类型匹配逻辑
+  let mimeMatch = false;
+  if (mimePatterns.length > 0 && file.type) {
+    mimeMatch = mimePatterns.some((pattern) => {
+      // 先转义特殊字符，再处理通配符
+      const regexPattern = pattern
+        .replace(/[.+?^${}()|[\]\\]/g, '\\$&') // 先转义特殊字符
+        .replace(/\*/g, '.*'); // 再替换通配符
+      const regex = new RegExp(`^${regexPattern}$`, 'i');
+      return regex.test(file.type);
+    });
+  }
+  if (mimePatterns.length && suffixList.length) {
+    return suffixMatch || mimeMatch;
+  } else if (mimePatterns.length) {
+    return mimeMatch;
+  } else if (suffixList.length) {
+    return suffixMatch;
+  }
+  // update-end--author:liaozhiyang---date:20250318---for：【issues/7954】BasicUpload组件上传文件，限制上传格式校验出错
 }
 
 export function checkImgType(file: File) {