first commit

node+vue/shop-bend/app.js

@@ -0,0 +1,58 @@
+var createError = require('http-errors');
+var express = require('express');
+var cookieParser = require('cookie-parser');
+var logger = require('morgan');
+var config = require('./config');
+
+// 导入路由
+var CartRouter = require('./routes/cart');
+var OrderRouter = require('./routes/order');
+var ShopRouter = require('./routes/shop');
+var UserRouter = require('./routes/user');
+
+var app = express();
+// 跨域请求头设置
+app.all("*", function (req, res, next) {
+  res.header("Access-Control-Allow-Origin", "*");
+  res.header(
+    "Access-Control-Allow-Headers",
+    "Content-Type,token,Content-Length, Authorization, Accept,X-Requested-With"
+  );
+  res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS");
+  res.header("X-Powered-By", "bmy");
+  if (req.method == "OPTIONS") res.sendStatus(200);
+  else next();
+});
+
+// 中间件设置
+app.use(logger('dev'));
+// 设置 HTTP请求的大小限制 为100mb
+app.use(express.json({
+  limit: config.dev.httpSize
+}));
+app.use(express.urlencoded({ limit: config.dev.httpSize, extended: false }));
+app.use(cookieParser());
+
+// 配置挂载路由
+app.use('/api/json/shop/', ShopRouter);
+app.use('/api/json/user/', UserRouter);
+app.use('/api/json/cart/', CartRouter)
+app.use('/api/json/order/', OrderRouter)
+
+// 捕捉404错误
+app.use(function (req, res, next) {
+  next(createError(404));
+});
+
+// 错误处理
+app.use(function (err, req, res, next) {
+  // set locals, only providing error in development
+  res.locals.message = err.message;
+  res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+  // render the error page
+  res.status(err.status || 500);
+
+});
+
+module.exports = app;