我正在尝试创建一个搜索栏，该查询栏将查询并显示我自己的Postgres数据库中的数据。我的屏幕上有一个搜索栏，我想我已连接到数据库，但无法显示任何结果。任何帮助，将不胜感激。对于使用node.js和开发此类工具，我还是很陌生的。当我提交搜索时，我收到404错误消息。Index.js
const express = require('express');
const router = express.Router();
const pg = require('pg');
const path = require('path');
const connectionString = process.env.DATABASE_URL || 'postgres://postgres:postgres@localhost:5432/todo';
router.get('/', (req, res, next) => {
res.sendFile(path.join(
__dirname, '..', '..', 'client', 'views', 'index.html'));
});
router.get('/api/v1/todos', (req, res, next) => {
const results = [];
// Get a Postgres client from the connection pool
pg.connect(connectionString, (err, client, done) => {
// Handle connection errors
if(err) {
done();
console.log(err);
return res.status(500).json({success: false, data: err});
}
// SQL Query > Select Data
const query = client.query('SELECT name FROM world_heritage_sites.caravanserai ORDER BY iso ASC;');
// Stream results back one row at a time
query.on('row', (row) => {
results.push(row);
});
// After all data is returned, close connection and return results
query.on('end', () => {
done();
return res.json(results);
});
});
});
App.js
const express = require('express');
const path = require('path');
const favicon = require('serve-favicon');
const logger = require('morgan');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const routes = require('./server/routes/index');
// var users = require('./routes/users');
const app = express();
// view engine setup
// app.set('views', path.join(__dirname, 'views'));
// app.set('view engine', 'html');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'client')));
app.use('/', routes);
// app.use('/users', users);
// catch 404 and forward to error handler
app.use((req, res, next) => {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use((err, req, res, next) => {
res.status(err.status || 500);
res.json({
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use((err, req, res, next) => {
res.status(err.status || 500);
res.json({
message: err.message,
error: {}
});
});
module.exports = app;
HTML
<!DOCTYPE html>
<html ng-app="nodeTodo">
<head>
<title>Todo App - with Node + Express + Angular + PostgreSQL</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" media="screen">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="/search.js" type="text/javascript"></script>
<script src="/search.js"></script>
<script src="//code.jquery.com/jquery-2.2.4.min.js" type="text/javascript"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" type="text/javascript"></script>
</head>
<body ng-controller="mainController">
<div class="container">
<div class="header">
<h1>SuckySearchBar</h1>
<hr>
<h1 class="lead">Designing Search Bars Suck This Never Works</h1>
</div>
</body>
<body ng-controller="searchController">
<div class="container">
<div class="search-box">
<input class="search" type="text" placeholder="Search" id="search" method='GET' autocomplete="on" onkeyup="search();">
<table class="result table-bordered" id="search"></table>
</div>
</body>
</html>
我认为@Molda的意思是您应该将methods=['GET']更改为method='GET'。您也可以发布周围的html吗？