diff --git a/backend/.env b/backend/.env
index 91b9c9d..f91754f 100644
--- a/backend/.env
+++ b/backend/.env
@@ -3,7 +3,7 @@ DB_HOST=129.211.213.226
 DB_PORT=9527
 DB_USERNAME=root
 DB_PASSWORD=aiotAiot123!
-DB_NAME=jiebandata
+DB_NAME=niumall
 
 # JWT配置
 JWT_SECRET=niumall_jwt_secret_key_2024
diff --git a/backend/init_database.js b/backend/init_database.js
new file mode 100644
index 0000000..6b0ea92
--- /dev/null
+++ b/backend/init_database.js
@@ -0,0 +1,135 @@
+const { sequelize } = require('./models');
+const { ApiUser, Order } = require('./models');
+const bcrypt = require('bcryptjs');
+
+// 演示账号数据
+const demoUsers = [
+  {
+    username: 'admin',
+    password: 'admin123',
+    phone: '13800138001',
+    email: 'admin@niumall.com',
+    user_type: 'admin',
+    status: 'active'
+  },
+  {
+    username: 'buyer',
+    password: 'buyer123',
+    phone: '13800138002',
+    email: 'buyer@niumall.com',
+    user_type: 'client',
+    status: 'active'
+  },
+  {
+    username: 'trader',
+    password: 'trader123',
+    phone: '13800138003',
+    email: 'trader@niumall.com',
+    user_type: 'supplier',
+    status: 'active'
+  }
+];
+
+// 演示订单数据
+const demoOrders = [
+  {
+    orderNo: 'ORD20240520001',
+    buyerId: 2, // buyer用户
+    buyerName: '采购商',
+    supplierId: 3, // trader用户
+    supplierName: '供应商',
+    traderId: null,
+    traderName: null,
+    cattleBreed: '西门塔尔牛',
+    cattleCount: 10,
+    expectedWeight: 5000.00,
+    actualWeight: null,
+    unitPrice: 35.00,
+    totalAmount: 175000.00,
+    paidAmount: 50000.00,
+    remainingAmount: 125000.00,
+    status: 'pending',
+    deliveryAddress: '北京市朝阳区某某路123号',
+    expectedDeliveryDate: new Date('2024-06-01'),
+    actualDeliveryDate: null,
+    notes: '请按时交货，质量要保证'
+  },
+  {
+    orderNo: 'ORD20240520002',
+    buyerId: 2, // buyer用户
+    buyerName: '采购商',
+    supplierId: 3, // trader用户
+    supplierName: '供应商',
+    traderId: null,
+    traderName: null,
+    cattleBreed: '夏洛来牛',
+    cattleCount: 5,
+    expectedWeight: 2500.00,
+    actualWeight: null,
+    unitPrice: 38.00,
+    totalAmount: 95000.00,
+    paidAmount: 95000.00,
+    remainingAmount: 0.00,
+    status: 'confirmed',
+    deliveryAddress: '北京市海淀区某某路456号',
+    expectedDeliveryDate: new Date('2024-05-28'),
+    actualDeliveryDate: null,
+    notes: '加急订单'
+  }
+];
+
+// 初始化数据库
+const initDatabase = async () => {
+  try {
+    console.log('开始初始化数据库...');
+    
+    // 测试数据库连接
+    await sequelize.authenticate();
+    console.log('✅ 数据库连接成功');
+
+    // 删除并重新创建表结构
+    console.log('正在创建表结构...');
+    await sequelize.sync({ force: true });
+    console.log('✅ 表结构创建完成');
+
+    // 添加演示用户
+    console.log('正在添加演示用户...');
+    for (const userData of demoUsers) {
+      // 加密密码
+      const salt = await bcrypt.genSalt(10);
+      const passwordHash = await bcrypt.hash(userData.password, salt);
+      
+      try {
+        await ApiUser.create({
+          ...userData,
+          password_hash: passwordHash
+        });
+        console.log(`✅ 成功创建用户: ${userData.username} (${userData.user_type})`);
+      } catch (error) {
+        console.error(`❌ 创建用户 ${userData.username} 时出错:`, error.message);
+      }
+    }
+
+    // 添加演示订单
+    console.log('正在添加演示订单...');
+    for (const orderData of demoOrders) {
+      try {
+        await Order.create(orderData);
+        console.log(`✅ 成功创建订单: ${orderData.orderNo}`);
+      } catch (error) {
+        console.error(`❌ 创建订单 ${orderData.orderNo} 时出错:`, error.message);
+      }
+    }
+
+    console.log('✅ 数据库初始化完成');
+  } catch (error) {
+    console.error('❌ 数据库初始化失败:', error.message);
+    console.error(error);
+  } finally {
+    // 关闭数据库连接
+    await sequelize.close();
+  }
+};
+
+// 执行初始化
+initDatabase();
\ No newline at end of file
diff --git a/backend/middleware/auth.js b/backend/middleware/auth.js
index b4aa555..fe20166 100644
--- a/backend/middleware/auth.js
+++ b/backend/middleware/auth.js
@@ -39,6 +39,7 @@ const jwt = require('jsonwebtoken')
  *                 example: 权限不足
  */
 
+const jwt = require('jsonwebtoken')
 // 从环境变量或配置中获取JWT密钥
 const JWT_SECRET = process.env.JWT_SECRET || 'your_jwt_secret_key'
 
diff --git a/backend/src/routes/auth.js b/backend/src/routes/auth.js
index 6f5bbd0..16e2f2f 100644
--- a/backend/src/routes/auth.js
+++ b/backend/src/routes/auth.js
@@ -12,4 +12,23 @@ router.post('/mini-program/login', AuthController.miniProgramLogin);
 // 获取当前用户信息
 router.get('/current', authenticate, AuthController.getCurrentUser);
 
+// 用户登出
+router.post('/logout', authenticate, async (req, res) => {
+  try {
+    // JWT是无状态的，服务器端无法直接使token失效
+    // 登出操作主要由客户端完成，如删除本地存储的token
+    // 这里只返回成功信息
+    res.json({
+      success: true,
+      message: '登出成功'
+    });
+  } catch (error) {
+    console.error('用户登出失败:', error);
+    res.status(500).json({
+      success: false,
+      message: '登出失败，请稍后再试'
+    });
+  }
+});
+
 module.exports = router;
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index acf87df..f9c9181 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,13 +5,293 @@
   "packages": {
     "": {
       "dependencies": {
-        "@dcloudio/uni-ui": "^1.5.11"
+        "@dcloudio/uni-ui": "^1.5.11",
+        "axios": "^1.12.2"
       }
     },
     "node_modules/@dcloudio/uni-ui": {
       "version": "1.5.11",
       "resolved": "https://registry.npmjs.org/@dcloudio/uni-ui/-/uni-ui-1.5.11.tgz",
       "integrity": "sha512-DBtk046ofmeFd82zRI7d89SoEwrAxYzUN3WVPm1DIBkpLPG5F5QDNkHMnZGu2wNrMEmGBjBpUh3vqEY1L3jaMw=="
+    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
+    "node_modules/axios": {
+      "version": "1.12.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.12.2.tgz",
+      "integrity": "sha512-vMJzPewAlRyOgxV2dU0Cuz2O8zzzx9VYtbJOaBgXFeLc4IV/Eg50n4LowmehOOR61S8ZMpc2K5Sa7g6A4jfkUw==",
+      "license": "MIT",
+      "dependencies": {
+        "follow-redirects": "^1.15.6",
+        "form-data": "^4.0.4",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
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+      "license": "MIT",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/delayed-stream": {
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+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
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+      "version": "1.0.1",
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+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
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+      }
+    },
+    "node_modules/es-define-property": {
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-set-tostringtag": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.6",
+        "has-tostringtag": "^1.0.2",
+        "hasown": "^2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/follow-redirects": {
+      "version": "1.15.11",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
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+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/form-data": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.4.tgz",
+      "integrity": "sha512-KrGhL9Q4zjj0kiUt5OO4Mr/A/jlI2jDYs5eHBpYHPcBEVSiipAvn2Ko2HnPe20rmcuuvMHNdZFp+4IlGTMF0Ow==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "es-set-tostringtag": "^2.1.0",
+        "hasown": "^2.0.2",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
+      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+      "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "es-define-property": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "es-object-atoms": "^1.1.1",
+        "function-bind": "^1.1.2",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-symbols": "^1.1.0",
+        "hasown": "^2.0.2",
+        "math-intrinsics": "^1.1.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+      "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+      "license": "MIT",
+      "dependencies": {
+        "dunder-proto": "^1.0.1",
+        "es-object-atoms": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/gopd": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
+      "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
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+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+      "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-tostringtag": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
+      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
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+      "dependencies": {
+        "has-symbols": "^1.0.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
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+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
+      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/math-intrinsics": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+      "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==",
+      "license": "MIT"
     }
   }
 }
diff --git a/package.json b/package.json
index 654f7f9..87db393 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
-    "@dcloudio/uni-ui": "^1.5.11"
+    "@dcloudio/uni-ui": "^1.5.11",
+    "axios": "^1.12.2"
   }
 }
diff --git a/test_logout.js b/test_logout.js
new file mode 100644
index 0000000..5e0d5bc
--- /dev/null
+++ b/test_logout.js
@@ -0,0 +1,76 @@
+const axios = require('axios');
+
+// 后端API基础URL
+const API_BASE_URL = 'http://localhost:4330/api';
+
+// 登录信息
+const loginData = {
+  username: 'admin',
+  password: 'admin123'
+};
+
+// 测试登出功能
+const testLogout = async () => {
+  try {
+    console.log('开始测试登出功能...');
+    
+    // 1. 先登录获取token
+    console.log('1. 登录获取token...');
+    const loginResponse = await axios.post(`${API_BASE_URL}/auth/login`, loginData);
+    
+    console.log('登录响应完整数据:', loginResponse.data);
+    
+    if (!loginResponse.data.success) {
+      console.error('登录失败:', loginResponse.data.message);
+      return;
+    }
+    
+    // 根据之前的修改，token应该在data对象中
+    let token = null;
+    if (loginResponse.data.data && loginResponse.data.data.access_token) {
+      token = loginResponse.data.data.access_token;
+    } else if (loginResponse.data.token) {
+      token = loginResponse.data.token;
+    }
+    
+    if (!token) {
+      console.error('❌ 无法从登录响应中获取token');
+      return;
+    }
+    
+    console.log('登录成功，获取到token:', token.substring(0, 20) + '...');
+    
+    // 2. 调用登出接口
+    console.log('\n2. 调用登出接口...');
+    const logoutResponse = await axios.post(
+      `${API_BASE_URL}/auth/logout`,
+      {},
+      {
+        headers: {
+          Authorization: `Bearer ${token}`
+        }
+      }
+    );
+    
+    console.log('登出响应状态码:', logoutResponse.status);
+    console.log('登出响应数据:', logoutResponse.data);
+    
+    if (logoutResponse.status === 200 && logoutResponse.data.success) {
+      console.log('\n✅ 登出功能测试成功！');
+    } else {
+      console.error('❌ 登出功能测试失败:', logoutResponse.data);
+    }
+    
+  } catch (error) {
+    console.error('❌ 测试过程中发生错误:', error.message);
+    if (error.response) {
+      console.error('错误状态码:', error.response.status);
+      console.error('错误响应数据:', error.response.data);
+    }
+  }
+};
+
+// 执行测试
+if (require.main === module) {
+  testLogout();
+}
\ No newline at end of file