Heroku 运行 URL 时如何解决postman 的"unspecified name" 错误 |节点 | MongoDB
How to resolve "unspecified name" error of postman when running URL of Heroku | NodeJs | MongoDB
我是 Heroku、NodeJS 和 MongoDB 的新手。我在 flutter 中创建了一个登录表单，它的后端在 NodeJS 和 MongoDB 中。我使用 Heroku 将后端连接到 flutter，但是当我 运行 邮递员上的 URL（由 Heroku 在构建项目时给出）时，它给了我“未指定的名称”
这是我的代码 app.js
var body = require('body-parser');
const mongoose = require('mongoose');
var mongodb = require('mongodb')
var url = 'mongodb://localhost:27017/Mongodb'
var express = require('express');
var app = express();
app.use(body.json());
var bcrypt = require('bcrypt');
var CryptoJS = require("crypto-js")
var jwt = require('jsonwebtoken');
const router= express.Router()
const User = require('./connection');
mongoose.connect('mongodb://localhost:27017/Mongodb', { useUnifiedTopology: true, useNewUrlParser: true },function(err){
if(err){
console.log(err)
}else{
console.log("connection Successful")
}
})
// router.get('/Dashboard', (req, res) => {
// res.send('Hello World')
// })
function checkToken(req,res,result){
const header= req.headers.token;
if(typeof header !== 'undefined'){
const bearer =header.split('.');
const token = bearer[1]
//console.log(token)
req.token = token
//next();
result();
}else
res.json("Error")
}
const login = require('./routes/login')
app.post("/login", async (req, res, next) => {
console.log("login api hit")
login(req,res,next)
} )
const userDashboard = require('./routes/userdashboard')
app.post("/Dashboard",checkToken,(req,res)=> {
userDashboard(req,res);
})
const PORT = process.env.PORT || 5000
app.listen(PORT, function(){
console.log("Server is running")
})
这里是 ./routes/login
的代码
var body = require('body-parser');
const mongoose = require('mongoose');
var mongodb = require('mongodb')
var url = 'mongodb://localhost:27017/Mongodb'
var express = require('express');
var app = express();
app.use(body.json());
const User = require('../connection');
var bcrypt = require('bcrypt');
var CryptoJS = require("crypto-js")
var jwt = require('jsonwebtoken');
login=(req,res,next)=>{
console.log(req.data)
User.find({"username":req.body.username},function(err,data){
if(err){
console.log("unspecified name")
res.status(400).json("unspecified name")
return;
}
else{
console.log(data.length)
if(data.length<=0)
{
res.status(300).json({
"message":"Invalid Input!"
})
}
else {
//bcrypt.compare(req.body.password,data[0].password).then(function(result) {
var bytes = CryptoJS.AES.decrypt(data[0].password, 'my-secret-key@123');
var decryptedData = JSON.parse(bytes.toString(CryptoJS.enc.Utf8));
console.log(decryptedData)
if (req.body.password==decryptedData)
{
login = "Succesful";
var token = jwt.sign({
data: 'foobar'
}, 'secret', { expiresIn: "2 minute"})
res.status(200).json({auth: true, AccessToken:token, User:data[0]})
}
else
{res.status(300).json({
"message":"Input!"
})}
// });
}}
})
}
module.exports = login;
这是显示 “登录 api 命中”
的快照
这是显示 “服务器正在 运行ning”的快照
这是 404 错误 和 400 错误
这是 postman snap
现在请告诉我我的服务器 运行ning 正常吗？好像是！但为什么它在邮递员上显示 "未指定名称"？
请帮助我是这方面的新手，我们将不胜感激！
谢谢！
------------------------编辑POST------ ------------------------------
我的数据库数据是这样的
但是 cmd 屏幕显示这个
谁能告诉我这背后的逻辑是什么？这些是从哪里来的？
------------------------编辑POST------------ ----------------------------------
这是我输入凭据时的输出！
这里是 cmd
的输出
2021-05-25T11:04:30.507933+00:00 app[web.1]: Server is running
2021-05-25T11:04:30.682233+00:00 heroku[web.1]: State changed from starting to up
2021-05-25T11:05:00.561298+00:00 app[web.1]: MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster. One common reason is that you're trying to access the database from an IP that isn't whitelisted. Make sure your current IP address is on your Atlas cluster's IP whitelist: https://docs.atlas.mongodb.com/security-whitelist/
2021-05-25T11:05:00.561320+00:00 app[web.1]: at NativeConnection.Connection.openUri (/app/node_modules/mongoose/lib/connection.js:832:32)
2021-05-25T11:05:00.561321+00:00 app[web.1]: at /app/node_modules/mongoose/lib/index.js:345:10
2021-05-25T11:05:00.561335+00:00 app[web.1]: at promiseOrCallback (/app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:9:12)
2021-05-25T11:05:00.561341+00:00 app[web.1]: at Mongoose._promiseOrCallback (/app/node_modules/mongoose/lib/index.js:1135:10)
2021-05-25T11:05:00.561342+00:00 app[web.1]: at Mongoose.connect (/app/node_modules/mongoose/lib/index.js:344:20)
2021-05-25T11:05:00.561343+00:00 app[web.1]: at Object.<anonymous> (/app/app.js:13:10)
2021-05-25T11:05:00.561343+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1068:30)
2021-05-25T11:05:00.561344+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
2021-05-25T11:05:00.561344+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:933:32)
2021-05-25T11:05:00.561344+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:774:14)
2021-05-25T11:05:00.561345+00:00 app[web.1]: at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
2021-05-25T11:05:00.561345+00:00 app[web.1]: at internal/main/run_main_module.js:17:47 {
2021-05-25T11:05:00.561346+00:00 app[web.1]: reason: TopologyDescription {
2021-05-25T11:05:00.561346+00:00 app[web.1]: type: 'ReplicaSetNoPrimary',
2021-05-25T11:05:00.561346+00:00 app[web.1]: setName: null,
2021-05-25T11:05:00.561347+00:00 app[web.1]: maxSetVersion: null,
2021-05-25T11:05:00.561347+00:00 app[web.1]: maxElectionId: null,
2021-05-25T11:05:00.561348+00:00 app[web.1]: servers: Map(3) {
2021-05-25T11:05:00.561348+00:00 app[web.1]: 'cluster0-shard-00-02.ocarv.mongodb.net:27017' => [ServerDescription],
2021-05-25T11:05:00.561348+00:00 app[web.1]: 'cluster0-shard-00-00.ocarv.mongodb.net:27017' => [ServerDescription],
2021-05-25T11:05:00.561349+00:00 app[web.1]: 'cluster0-shard-00-01.ocarv.mongodb.net:27017' => [ServerDescription]
2021-05-25T11:05:00.561350+00:00 app[web.1]: },
2021-05-25T11:05:00.561350+00:00 app[web.1]: stale: false,
2021-05-25T11:05:00.561350+00:00 app[web.1]: compatible: true,
2021-05-25T11:05:00.561350+00:00 app[web.1]: compatibilityError: null,
2021-05-25T11:05:00.561351+00:00 app[web.1]: logicalSessionTimeoutMinutes: null,
2021-05-25T11:05:00.561351+00:00 app[web.1]: heartbeatFrequencyMS: 10000,
2021-05-25T11:05:00.561351+00:00 app[web.1]: localThresholdMS: 15,
2021-05-25T11:05:00.561352+00:00 app[web.1]: commonWireVersion: null
2021-05-25T11:05:00.561352+00:00 app[web.1]: }
2021-05-25T11:05:00.561352+00:00 app[web.1]: }
2021-05-25T11:15:57.214740+00:00 app[web.1]: login api hit
2021-05-25T11:15:57.215001+00:00 app[web.1]: {}
2021-05-25T11:16:07.230564+00:00 app[web.1]: unspecified name
2021-05-25T11:16:07.247306+00:00 app[web.1]: /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:19
2021-05-25T11:16:07.247307+00:00 app[web.1]: throw error;
2021-05-25T11:16:07.247308+00:00 app[web.1]: ^
2021-05-25T11:16:07.247308+00:00 app[web.1]:
2021-05-25T11:16:07.247309+00:00 app[web.1]: ReferenceError: print is not defined
2021-05-25T11:16:07.247310+00:00 app[web.1]: at /app/routes/login.js:19:7
2021-05-25T11:16:07.247310+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4863:16
2021-05-25T11:16:07.247310+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4863:16
2021-05-25T11:16:07.247311+00:00 app[web.1]: at /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:16:11
2021-05-25T11:16:07.247311+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4886:21
2021-05-25T11:16:07.247312+00:00 app[web.1]: at /app/node_modules/mongoose/lib/query.js:4389:18
2021-05-25T11:16:07.247312+00:00 app[web.1]: at /app/node_modules/mongoose/lib/query.js:4424:14
2021-05-25T11:16:07.247313+00:00 app[web.1]: at cb (/app/node_modules/mongoose/lib/query.js:1895:14)
2021-05-25T11:16:07.247313+00:00 app[web.1]: at /app/node_modules/mquery/lib/collection/node.js:27:21
2021-05-25T11:16:07.247314+00:00 app[web.1]: at collectionOperationCallback (/app/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js:160:26)
2021-05-25T11:16:07.247323+00:00 app[web.1]: at Timeout.<anonymous> (/app/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js:185:11)
2021-05-25T11:16:07.247323+00:00 app[web.1]: at listOnTimeout (internal/timers.js:555:17)
2021-05-25T11:16:07.247324+00:00 app[web.1]: at processTimers (internal/timers.js:498:7)
2021-05-25T11:16:07.247324+00:00 app[web.1]: Emitted 'error' event on Function instance at:
2021-05-25T11:16:07.247324+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4865:13
2021-05-25T11:16:07.247325+00:00 app[web.1]: at /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:16:11
2021-05-25T11:16:07.247325+00:00 app[web.1]: [... lines matching original stack trace ...]
2021-05-25T11:16:07.247326+00:00 app[web.1]: at processTimers (internal/timers.js:498:7)
2021-05-25T11:16:07.314225+00:00 heroku[web.1]: Process exited with status 1
2021-05-25T11:16:07.401592+00:00 heroku[web.1]: State changed from up to crashed
2021-05-25T11:16:07.409072+00:00 heroku[web.1]: State changed from crashed to starting
2021-05-25T11:16:07.240945+00:00 heroku[router]: at=info method=POST path="/login" host=attendance-demo.herokuapp.com request_id=ac9410a0-ac64-420b-b4d5-803aaa1a3fb2 fwd="111.88.134.32" dyno=web.1 connect=1ms service=10035ms status=400 bytes=234 protocol=https
2021-05-25T11:16:18.897092+00:00 heroku[web.1]: Starting process with command `node app`
2021-05-25T11:16:30.471917+00:00 heroku[web.1]: State changed from starting to up
2021-05-25T11:16:30.423428+00:00 app[web.1]: Server is running
这是我点击按钮时调用的 authenticate.dart 文件
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
class AuthService{
Dio dio=new Dio();
login(name,password)async{
try{
return await dio.post('https://attendance-demo.herokuapp.com/login',data: {
"username":name,
"password":password
},options: Options(contentType:Headers.formUrlEncodedContentType)
);
}
on DioError catch(e){
Fluttertoast.showToast(msg: e.response.data['msg'],
toastLength: Toast.LENGTH_SHORT,
gravity: ToastGravity.BOTTOM,
backgroundColor: Colors.red,
textColor: Colors.white,
fontSize: 16.0
);
}
}
}
这是我创建的登录按钮的代码和从身份验证调用登录方法class
RoundedButton(text:"Login", press: () {
AuthService().login(name,password).then((value){
if(value.data['success']){
token=value.data['token'];
Fluttertoast.showToast(msg: 'Authenticated',
toastLength: Toast.LENGTH_SHORT,
gravity: ToastGravity.BOTTOM,
backgroundColor: Colors.red,
textColor: Colors.white,
fontSize: 16.0);
}
你的 mongodb 客户端是 运行 在你的本地机器上你必须建立一个像 Atlas 的云基础 mongodb 集群并改变你的 mongo带有云基础集群 URI 的 URI。
解决方案
所以，在花了很多时间之后，我终于找到了解决方案！问题是我的 Mongodb 已连接，问题是 IP 地址所以感谢 Whosebug 团队，我从这个 link（Aka 的解决方案）得到了解决方案，现在我已连接到我的数据库！
我是 Heroku、NodeJS 和 MongoDB 的新手。我在 flutter 中创建了一个登录表单，它的后端在 NodeJS 和 MongoDB 中。我使用 Heroku 将后端连接到 flutter，但是当我 运行 邮递员上的 URL（由 Heroku 在构建项目时给出）时，它给了我“未指定的名称”
这是我的代码 app.js
var body = require('body-parser');
const mongoose = require('mongoose');
var mongodb = require('mongodb')
var url = 'mongodb://localhost:27017/Mongodb'
var express = require('express');
var app = express();
app.use(body.json());
var bcrypt = require('bcrypt');
var CryptoJS = require("crypto-js")
var jwt = require('jsonwebtoken');
const router= express.Router()
const User = require('./connection');
mongoose.connect('mongodb://localhost:27017/Mongodb', { useUnifiedTopology: true, useNewUrlParser: true },function(err){
if(err){
console.log(err)
}else{
console.log("connection Successful")
}
})
// router.get('/Dashboard', (req, res) => {
// res.send('Hello World')
// })
function checkToken(req,res,result){
const header= req.headers.token;
if(typeof header !== 'undefined'){
const bearer =header.split('.');
const token = bearer[1]
//console.log(token)
req.token = token
//next();
result();
}else
res.json("Error")
}
const login = require('./routes/login')
app.post("/login", async (req, res, next) => {
console.log("login api hit")
login(req,res,next)
} )
const userDashboard = require('./routes/userdashboard')
app.post("/Dashboard",checkToken,(req,res)=> {
userDashboard(req,res);
})
const PORT = process.env.PORT || 5000
app.listen(PORT, function(){
console.log("Server is running")
})
这里是 ./routes/login
的代码var body = require('body-parser');
const mongoose = require('mongoose');
var mongodb = require('mongodb')
var url = 'mongodb://localhost:27017/Mongodb'
var express = require('express');
var app = express();
app.use(body.json());
const User = require('../connection');
var bcrypt = require('bcrypt');
var CryptoJS = require("crypto-js")
var jwt = require('jsonwebtoken');
login=(req,res,next)=>{
console.log(req.data)
User.find({"username":req.body.username},function(err,data){
if(err){
console.log("unspecified name")
res.status(400).json("unspecified name")
return;
}
else{
console.log(data.length)
if(data.length<=0)
{
res.status(300).json({
"message":"Invalid Input!"
})
}
else {
//bcrypt.compare(req.body.password,data[0].password).then(function(result) {
var bytes = CryptoJS.AES.decrypt(data[0].password, 'my-secret-key@123');
var decryptedData = JSON.parse(bytes.toString(CryptoJS.enc.Utf8));
console.log(decryptedData)
if (req.body.password==decryptedData)
{
login = "Succesful";
var token = jwt.sign({
data: 'foobar'
}, 'secret', { expiresIn: "2 minute"})
res.status(200).json({auth: true, AccessToken:token, User:data[0]})
}
else
{res.status(300).json({
"message":"Input!"
})}
// });
}}
})
}
module.exports = login;
这是显示 “登录 api 命中”
的快照这是显示 “服务器正在 运行ning”的快照
这是 404 错误 和 400 错误
这是 postman snap
现在请告诉我我的服务器 运行ning 正常吗？好像是！但为什么它在邮递员上显示 "未指定名称"？ 请帮助我是这方面的新手，我们将不胜感激！
谢谢！
------------------------编辑POST------ ------------------------------
我的数据库数据是这样的
但是 cmd 屏幕显示这个
谁能告诉我这背后的逻辑是什么？这些是从哪里来的？
------------------------编辑POST------------ ----------------------------------
这是我输入凭据时的输出！
这里是 cmd
的输出2021-05-25T11:04:30.507933+00:00 app[web.1]: Server is running
2021-05-25T11:04:30.682233+00:00 heroku[web.1]: State changed from starting to up
2021-05-25T11:05:00.561298+00:00 app[web.1]: MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster. One common reason is that you're trying to access the database from an IP that isn't whitelisted. Make sure your current IP address is on your Atlas cluster's IP whitelist: https://docs.atlas.mongodb.com/security-whitelist/
2021-05-25T11:05:00.561320+00:00 app[web.1]: at NativeConnection.Connection.openUri (/app/node_modules/mongoose/lib/connection.js:832:32)
2021-05-25T11:05:00.561321+00:00 app[web.1]: at /app/node_modules/mongoose/lib/index.js:345:10
2021-05-25T11:05:00.561335+00:00 app[web.1]: at promiseOrCallback (/app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:9:12)
2021-05-25T11:05:00.561341+00:00 app[web.1]: at Mongoose._promiseOrCallback (/app/node_modules/mongoose/lib/index.js:1135:10)
2021-05-25T11:05:00.561342+00:00 app[web.1]: at Mongoose.connect (/app/node_modules/mongoose/lib/index.js:344:20)
2021-05-25T11:05:00.561343+00:00 app[web.1]: at Object.<anonymous> (/app/app.js:13:10)
2021-05-25T11:05:00.561343+00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1068:30)
2021-05-25T11:05:00.561344+00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
2021-05-25T11:05:00.561344+00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:933:32)
2021-05-25T11:05:00.561344+00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:774:14)
2021-05-25T11:05:00.561345+00:00 app[web.1]: at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
2021-05-25T11:05:00.561345+00:00 app[web.1]: at internal/main/run_main_module.js:17:47 {
2021-05-25T11:05:00.561346+00:00 app[web.1]: reason: TopologyDescription {
2021-05-25T11:05:00.561346+00:00 app[web.1]: type: 'ReplicaSetNoPrimary',
2021-05-25T11:05:00.561346+00:00 app[web.1]: setName: null,
2021-05-25T11:05:00.561347+00:00 app[web.1]: maxSetVersion: null,
2021-05-25T11:05:00.561347+00:00 app[web.1]: maxElectionId: null,
2021-05-25T11:05:00.561348+00:00 app[web.1]: servers: Map(3) {
2021-05-25T11:05:00.561348+00:00 app[web.1]: 'cluster0-shard-00-02.ocarv.mongodb.net:27017' => [ServerDescription],
2021-05-25T11:05:00.561348+00:00 app[web.1]: 'cluster0-shard-00-00.ocarv.mongodb.net:27017' => [ServerDescription],
2021-05-25T11:05:00.561349+00:00 app[web.1]: 'cluster0-shard-00-01.ocarv.mongodb.net:27017' => [ServerDescription]
2021-05-25T11:05:00.561350+00:00 app[web.1]: },
2021-05-25T11:05:00.561350+00:00 app[web.1]: stale: false,
2021-05-25T11:05:00.561350+00:00 app[web.1]: compatible: true,
2021-05-25T11:05:00.561350+00:00 app[web.1]: compatibilityError: null,
2021-05-25T11:05:00.561351+00:00 app[web.1]: logicalSessionTimeoutMinutes: null,
2021-05-25T11:05:00.561351+00:00 app[web.1]: heartbeatFrequencyMS: 10000,
2021-05-25T11:05:00.561351+00:00 app[web.1]: localThresholdMS: 15,
2021-05-25T11:05:00.561352+00:00 app[web.1]: commonWireVersion: null
2021-05-25T11:05:00.561352+00:00 app[web.1]: }
2021-05-25T11:05:00.561352+00:00 app[web.1]: }
2021-05-25T11:15:57.214740+00:00 app[web.1]: login api hit
2021-05-25T11:15:57.215001+00:00 app[web.1]: {}
2021-05-25T11:16:07.230564+00:00 app[web.1]: unspecified name
2021-05-25T11:16:07.247306+00:00 app[web.1]: /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:19
2021-05-25T11:16:07.247307+00:00 app[web.1]: throw error;
2021-05-25T11:16:07.247308+00:00 app[web.1]: ^
2021-05-25T11:16:07.247308+00:00 app[web.1]:
2021-05-25T11:16:07.247309+00:00 app[web.1]: ReferenceError: print is not defined
2021-05-25T11:16:07.247310+00:00 app[web.1]: at /app/routes/login.js:19:7
2021-05-25T11:16:07.247310+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4863:16
2021-05-25T11:16:07.247310+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4863:16
2021-05-25T11:16:07.247311+00:00 app[web.1]: at /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:16:11
2021-05-25T11:16:07.247311+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4886:21
2021-05-25T11:16:07.247312+00:00 app[web.1]: at /app/node_modules/mongoose/lib/query.js:4389:18
2021-05-25T11:16:07.247312+00:00 app[web.1]: at /app/node_modules/mongoose/lib/query.js:4424:14
2021-05-25T11:16:07.247313+00:00 app[web.1]: at cb (/app/node_modules/mongoose/lib/query.js:1895:14)
2021-05-25T11:16:07.247313+00:00 app[web.1]: at /app/node_modules/mquery/lib/collection/node.js:27:21
2021-05-25T11:16:07.247314+00:00 app[web.1]: at collectionOperationCallback (/app/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js:160:26)
2021-05-25T11:16:07.247323+00:00 app[web.1]: at Timeout.<anonymous> (/app/node_modules/mongoose/lib/drivers/node-mongodb-native/collection.js:185:11)
2021-05-25T11:16:07.247323+00:00 app[web.1]: at listOnTimeout (internal/timers.js:555:17)
2021-05-25T11:16:07.247324+00:00 app[web.1]: at processTimers (internal/timers.js:498:7)
2021-05-25T11:16:07.247324+00:00 app[web.1]: Emitted 'error' event on Function instance at:
2021-05-25T11:16:07.247324+00:00 app[web.1]: at /app/node_modules/mongoose/lib/model.js:4865:13
2021-05-25T11:16:07.247325+00:00 app[web.1]: at /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:16:11
2021-05-25T11:16:07.247325+00:00 app[web.1]: [... lines matching original stack trace ...]
2021-05-25T11:16:07.247326+00:00 app[web.1]: at processTimers (internal/timers.js:498:7)
2021-05-25T11:16:07.314225+00:00 heroku[web.1]: Process exited with status 1
2021-05-25T11:16:07.401592+00:00 heroku[web.1]: State changed from up to crashed
2021-05-25T11:16:07.409072+00:00 heroku[web.1]: State changed from crashed to starting
2021-05-25T11:16:07.240945+00:00 heroku[router]: at=info method=POST path="/login" host=attendance-demo.herokuapp.com request_id=ac9410a0-ac64-420b-b4d5-803aaa1a3fb2 fwd="111.88.134.32" dyno=web.1 connect=1ms service=10035ms status=400 bytes=234 protocol=https
2021-05-25T11:16:18.897092+00:00 heroku[web.1]: Starting process with command `node app`
2021-05-25T11:16:30.471917+00:00 heroku[web.1]: State changed from starting to up
2021-05-25T11:16:30.423428+00:00 app[web.1]: Server is running
这是我点击按钮时调用的 authenticate.dart 文件
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
class AuthService{
Dio dio=new Dio();
login(name,password)async{
try{
return await dio.post('https://attendance-demo.herokuapp.com/login',data: {
"username":name,
"password":password
},options: Options(contentType:Headers.formUrlEncodedContentType)
);
}
on DioError catch(e){
Fluttertoast.showToast(msg: e.response.data['msg'],
toastLength: Toast.LENGTH_SHORT,
gravity: ToastGravity.BOTTOM,
backgroundColor: Colors.red,
textColor: Colors.white,
fontSize: 16.0
);
}
}
}
这是我创建的登录按钮的代码和从身份验证调用登录方法class
RoundedButton(text:"Login", press: () {
AuthService().login(name,password).then((value){
if(value.data['success']){
token=value.data['token'];
Fluttertoast.showToast(msg: 'Authenticated',
toastLength: Toast.LENGTH_SHORT,
gravity: ToastGravity.BOTTOM,
backgroundColor: Colors.red,
textColor: Colors.white,
fontSize: 16.0);
}
你的 mongodb 客户端是 运行 在你的本地机器上你必须建立一个像 Atlas 的云基础 mongodb 集群并改变你的 mongo带有云基础集群 URI 的 URI。
解决方案
所以，在花了很多时间之后，我终于找到了解决方案！问题是我的 Mongodb 已连接，问题是 IP 地址所以感谢 Whosebug 团队，我从这个 link（Aka 的解决方案）得到了解决方案，现在我已连接到我的数据库！