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61 lines
1.4 KiB
61 lines
1.4 KiB
var createError = require("http-errors");
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var express = require("express");
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var path = require("path");
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var cookieParser = require("cookie-parser");
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var logger = require("morgan");
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const cors = require("cors");
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//优先读取环境变量
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require("dotenv").config();
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//引入数据库连接
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require("./dao/db");
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//引入路由
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const userRouter = require("./routes/user");
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const expressRouter = require("./routes/express");
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const addressRouter = require("./routes/address");
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var app = express();
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//配置cors
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const corsOptions = {
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allowedHeaders: ["Content-Type", "Authorization"],
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exposedHeaders: ["Authentication", "X-Custom-Header"],
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credentials: true,
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};
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//为所有源跨域
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app.use(cors(corsOptions));
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//使用各种中间件
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app.use(logger("dev"));
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app.use(express.json());
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app.use(
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express.urlencoded({
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extended: false,
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})
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);
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app.use(cookieParser());
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app.use(express.static(path.join(__dirname, "public")));
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//使用路由中间件
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app.use("/user", userRouter);
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app.use("/express", expressRouter);
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app.use("/address", addressRouter);
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// catch 404 and forward to error handler
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app.use(function (req, res, next) {
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next(createError(404));
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});
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// 错误捕获
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app.use(function (err, req, res, next) {
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// set locals, only providing error in development
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res.locals.message = err.message;
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res.locals.error = req.app.get("env") === "development" ? err : {};
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// render the error page
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res.status(err.status || 500);
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});
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module.exports = app;
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