diff --git a/frontend/src/api/http.js b/frontend/src/api/http.js
index 7fd055f..c6ceb2b 100644
--- a/frontend/src/api/http.js
+++ b/frontend/src/api/http.js
@@ -1,8 +1,10 @@
-import axios from 'axios';
+import axios from 'axios';
+import { Message } from 'element-ui';
 
 const http = axios.create({
   baseURL: '/api',
-  timeout: 10000
+  timeout: 10000,
+  validateStatus: () => true
 });
 
 http.interceptors.request.use((config) => {
@@ -13,4 +15,19 @@ http.interceptors.request.use((config) => {
   return config;
 });
 
+http.interceptors.response.use(
+  (response) => {
+    const payload = response && response.data;
+    if (payload && payload.code !== 0) {
+      Message.error(payload.message || '请求失败');
+    }
+    return response;
+  },
+  (error) => {
+    const payload = error && error.response && error.response.data;
+    Message.error((payload && payload.message) || '请求失败');
+    return Promise.resolve(error.response || { data: { code: 500, message: '请求失败' } });
+  }
+);
+
 export default http;
diff --git a/frontend/src/views/ConfessionCreate.vue b/frontend/src/views/ConfessionCreate.vue
index 300aaef..3642853 100644
--- a/frontend/src/views/ConfessionCreate.vue
+++ b/frontend/src/views/ConfessionCreate.vue
@@ -1,4 +1,4 @@
-<template>
+<template>
   <div class="page">
     <el-card>
       <el-button type="text" @click="$router.push('/orders')">返回订单</el-button>
@@ -14,7 +14,7 @@
         </el-form-item>
         <el-form-item label="AI 生成">
           <div class="ai-row">
-            <el-input v-model="aiPrompt" placeholder="例如：生成3条简短表白祝福语" />
+            <el-input v-model="aiPrompt" placeholder="例如：生成一条简短表白祝福语" />
             <el-button type="primary" :loading="aiLoading" @click="generateWithAi">AI 生成</el-button>
           </div>
         </el-form-item>
@@ -59,7 +59,7 @@ export default {
         imageUrl: ''
       },
       confession: null,
-      aiPrompt: ' 约50字，文艺但不晦涩，避免过度肉麻，表达温柔与坚定。仅输出文案本身，不要加标题或解释。',
+      aiPrompt: '50字左右，文艺但不晦涩，避免过度肉麻，表达温柔与坚定。仅输出文案本身，不要加标题或解释。',
       aiLoading: false
     };
   },
@@ -85,6 +85,9 @@ export default {
     loadExisting() {
       const orderId = this.$route.params.orderId;
       getConfessionByOrder(orderId).then((res) => {
+        if (!res || !res.data || res.data.code !== 0) {
+          return;
+        }
         const data = res.data.data;
         if (data) {
           this.confession = data;
@@ -110,7 +113,7 @@ export default {
           model: 'gpt-4o',
           messages: [
             { role: 'system', content: '你是文艺风格的祝福文案写手，语言自然、真诚、不过度夸张。' },
-            { role: 'user', content: '请生成一条表白文案，要求如下：'+this.aiPrompt }
+            { role: 'user', content: '请生成一条表白文案，要求如下：' + this.aiPrompt }
           ],
           stream: false,
           temperature: 1
@@ -145,6 +148,9 @@ export default {
         ? updateConfession(this.confession.id, payload)
         : createConfession(payload);
       action.then((res) => {
+        if (!res || !res.data || res.data.code !== 0) {
+          return;
+        }
         this.confession = res.data.data;
         this.$message.success('保存成功');
       });
diff --git a/frontend/src/views/Login.vue b/frontend/src/views/Login.vue
index 6c1145e..d78e84d 100644
--- a/frontend/src/views/Login.vue
+++ b/frontend/src/views/Login.vue
@@ -1,4 +1,4 @@
-<template>
+<template>
   <div class="auth-page">
     <el-card class="card">
       <h3>登录</h3>
@@ -28,7 +28,13 @@ export default {
   methods: {
     submit() {
       login(this.form).then((res) => {
+        if (!res || !res.data || res.data.code !== 0) {
+          return;
+        }
         const data = res.data.data;
+        if (!data) {
+          return;
+        }
         localStorage.setItem('token', data.token);
         localStorage.setItem('user', JSON.stringify(data.user));
         this.$message.success('登录成功');
diff --git a/frontend/src/views/ProductDetail.vue b/frontend/src/views/ProductDetail.vue
index bbf9384..46d54d3 100644
--- a/frontend/src/views/ProductDetail.vue
+++ b/frontend/src/views/ProductDetail.vue
@@ -1,4 +1,4 @@
-<template>
+<template>
   <div class="page">
     <el-card>
       <el-button type="text" @click="$router.push('/')">返回首页</el-button>
@@ -101,6 +101,9 @@ export default {
         addressId: this.addressId,
         items: [{ productId: this.product.id, quantity: this.quantity }]
       }).then((res) => {
+        if (!res || !res.data || res.data.code !== 0 || !res.data.data) {
+          return;
+        }
         this.$message.success('下单成功');
         const order = res.data.data.order;
         this.$router.push(`/orders?highlight=${order.id}`);
diff --git a/frontend/src/views/Register.vue b/frontend/src/views/Register.vue
index ba5906d..84446ef 100644
--- a/frontend/src/views/Register.vue
+++ b/frontend/src/views/Register.vue
@@ -1,4 +1,4 @@
-<template>
+<template>
   <div class="auth-page">
     <el-card class="card">
       <h3>注册</h3>
@@ -31,7 +31,13 @@ export default {
   methods: {
     submit() {
       register(this.form).then((res) => {
+        if (!res || !res.data || res.data.code !== 0) {
+          return;
+        }
         const data = res.data.data;
+        if (!data) {
+          return;
+        }
         localStorage.setItem('token', data.token);
         localStorage.setItem('user', JSON.stringify(data.user));
         this.$message.success('注册成功');