修复二维码生成器问题

pages/qrcode.php

@@ -43,16 +43,23 @@ let currentQRCode = null;
 async function generateQR() {
     const content = document.getElementById('content').value.trim();
     if (!content) {
-        showToast('请输入内容', 'error');
+        alert('请输入内容');
         return;
     }
     
     const size = parseInt(document.getElementById('size').value);
     
     try {
+        const formData = new URLSearchParams();
+        formData.append('content', content);
+        formData.append('size', size);
+        
         const data = await apiRequest('/qrcode/generate', {
             method: 'POST',
-            body: JSON.stringify({ content: content, size: size })
+            headers: {
+                'Content-Type': 'application/x-www-form-urlencoded'
+            },
+            body: formData
         });
         
         currentQRCode = data.qr_code;
@@ -60,7 +67,7 @@ async function generateQR() {
         document.getElementById('downloadBtn').classList.remove('hidden');
     } catch (error) {
         console.error('生成失败:', error);
-        showToast('生成失败: ' + (error.message || '未知错误'), 'error');
+        alert('生成失败: ' + error.message);
     }
 }
 
@@ -79,7 +86,6 @@ document.getElementById('size').addEventListener('input', (e) => {
 document.getElementById('generateBtn').addEventListener('click', generateQR);
 document.getElementById('downloadBtn').addEventListener('click', downloadQR);
 
-recordUsage('qrcode');
 </script>
 
 <?php include_once '../footer.php'; ?>