项目初始化
diff --git a/frontend/mock/mock-server.js b/frontend/mock/mock-server.js
new file mode 100644
index 0000000..8941ec0
--- /dev/null
+++ b/frontend/mock/mock-server.js
@@ -0,0 +1,81 @@
+const chokidar = require('chokidar')
+const bodyParser = require('body-parser')
+const chalk = require('chalk')
+const path = require('path')
+const Mock = require('mockjs')
+
+const mockDir = path.join(process.cwd(), 'mock')
+
+function registerRoutes(app) {
+  let mockLastIndex
+  const { mocks } = require('./index.js')
+  const mocksForServer = mocks.map(route => {
+    return responseFake(route.url, route.type, route.response)
+  })
+  for (const mock of mocksForServer) {
+    app[mock.type](mock.url, mock.response)
+    mockLastIndex = app._router.stack.length
+  }
+  const mockRoutesLength = Object.keys(mocksForServer).length
+  return {
+    mockRoutesLength: mockRoutesLength,
+    mockStartIndex: mockLastIndex - mockRoutesLength
+  }
+}
+
+function unregisterRoutes() {
+  Object.keys(require.cache).forEach(i => {
+    if (i.includes(mockDir)) {
+      delete require.cache[require.resolve(i)]
+    }
+  })
+}
+
+// for mock server
+const responseFake = (url, type, respond) => {
+  return {
+    url: new RegExp(`${process.env.VUE_APP_BASE_API}${url}`),
+    type: type || 'get',
+    response(req, res) {
+      console.log('request invoke:' + req.path)
+      res.json(Mock.mock(respond instanceof Function ? respond(req, res) : respond))
+    }
+  }
+}
+
+module.exports = app => {
+  // parse app.body
+  // https://expressjs.com/en/4x/api.html#req.body
+  app.use(bodyParser.json())
+  app.use(bodyParser.urlencoded({
+    extended: true
+  }))
+
+  const mockRoutes = registerRoutes(app)
+  var mockRoutesLength = mockRoutes.mockRoutesLength
+  var mockStartIndex = mockRoutes.mockStartIndex
+
+  // watch files, hot reload mock server
+  chokidar.watch(mockDir, {
+    ignored: /mock-server/,
+    ignoreInitial: true
+  }).on('all', (event, path) => {
+    if (event === 'change' || event === 'add') {
+      try {
+        // remove mock routes stack
+        app._router.stack.splice(mockStartIndex, mockRoutesLength)
+
+        // clear routes cache
+        unregisterRoutes()
+
+        const mockRoutes = registerRoutes(app)
+        mockRoutesLength = mockRoutes.mockRoutesLength
+        mockStartIndex = mockRoutes.mockStartIndex
+
+        console.log(chalk.magentaBright(`\n > Mock Server hot reload success! changed  ${path}`))
+      } catch (error) {
+        console.log(chalk.redBright(error))
+      }
+    }
+  })
+}