Javascript 解决express get请求中未处理的PromisejectionWarning
从localhost:3000/todos/在mongodb中创建数据后尝试获取数据,在节点[UnhandledPromisejectionWarning:error[ERR\u HTTP\u HEADERS\u SENT]:发送到客户端后无法设置标头]中出现错误,我使用了以下方法Javascript 解决express get请求中未处理的PromisejectionWarning,javascript,node.js,mongodb,express,Javascript,Node.js,Mongodb,Express,从localhost:3000/todos/在mongodb中创建数据后尝试获取数据,在节点[UnhandledPromisejectionWarning:error[ERR\u HTTP\u HEADERS\u SENT]:发送到客户端后无法设置标头]中出现错误,我使用了以下方法 // Require Express const express = require("express"); // Setting Express Routes const router = express.Rou
// Require Express
const express = require("express");
// Setting Express Routes
const router = express.Router();
// Set Up Models
const Todo = require("../models/todo");
// Get All Todos
router.get("/", async (req, res) => {
try {
const todo = await Todo.find();
res.json(todo);
} catch (err) {
res.json({ message: err });
}
});
这是我的app.js,带有到localhost:3000/todos的必要路径/
// Require Express
const express = require("express");
const app = express();
// Require Body-Parser
const bodyParser = require("body-parser");
// Require Cors
const cors = require("cors");
// Middlewares - [Set bodyParser before calling routes]
app.use(cors());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
// Import Routes
const todoRoutes = require("./routes/todo");
// Setup Routes Middlewares
app.use("/", todoRoutes);
app.use("/todos", todoRoutes);
我想在localhost:3000/todos/上查看我的输出数据,但我在localhost:3000/上得到了它。谢谢好的,我掌握了窍门,是我的路线造成的,我刚刚调整了路线的方向
// Import Routes
const todoRoutes = require("./routes/todo");
// Setup Routes Middlewares
app.use("/todos", todoRoutes);
好吧,我掌握了窍门,是我的路线造成的,我只是调整了路线的方向
// Import Routes
const todoRoutes = require("./routes/todo");
// Setup Routes Middlewares
app.use("/todos", todoRoutes);