diff --git a/app/users/oauth/callback/page.tsx b/app/users/oauth/callback/page.tsx
index e5dcc26..27b9f70 100644
--- a/app/users/oauth/callback/page.tsx
+++ b/app/users/oauth/callback/page.tsx
@@ -80,20 +80,20 @@ export default function OAuthCallback() {
 
         // 调用后端处理授权码 - 直接调用Java后端
         const JAVA_BASE_URL = process.env.NEXT_PUBLIC_JAVA_URL || 'https://auth.test.movieflow.ai';
-        const queryParams = new URLSearchParams({
-          code: params.code,
-          state: params.state,
-          ...(finalInviteCode && { inviteCode: finalInviteCode })
-        });
         
         console.log('调用Java后端OAuth接口:', `${JAVA_BASE_URL}/api/auth/google/callback`);
         
-        const response = await fetch(`${JAVA_BASE_URL}/api/auth/google/callback?${queryParams.toString()}`, {
-          method: 'GET',
+        const response = await fetch(`${JAVA_BASE_URL}/api/auth/google/callback`, {
+          method: 'POST',
           headers: {
             'Accept': 'application/json',
             'Content-Type': 'application/json',
-          }
+          },
+          body: JSON.stringify({
+            code: params.code,
+            state: params.state,
+            ...(finalInviteCode && { inviteCode: finalInviteCode })
+          })
         });
 
         if (!response.ok) {