ajax+node+request爬取网络图片的实例(宅男福利)

const express = require("express");
const morgan = require('morgan');
const ejs = require('ejs');
const path = require('path');
const bodyParser = require('body-parser');
const app = express();

//logs info to server
app.use(morgan('dev'));

//post resolve
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: false
}));

// view engine setup
app.engine('html', ejs.__express);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'html');

//设置静态文件如：图片， CSS, JavaScript 等。
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: false
}));
app.use(express.static(path.join(__dirname, 'public')));

/*
* reuire pages
*/
var index = require('./routes/index')

/*
* render pages
*/
app.use('/', index);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handler
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);
res.render('error', {
"title": '404',
"msg": '服务异常'
});
});
module.exports = app;

app.listen(3000,function(){
console.log('http://127.0.0.1:3000')
});

client.get(url,function(err, response, body) {
　　if((typeof body)!="string"){
　　　　body = JSON.stringify(body);
　　}
　　arr =body.match(reg);
　　console.log(arr);

　　//这里就是当前页面的路径以及页面上图片列表的数组，通过res.json发送到client；
　　res.json({"url":url,"records":arr});
});
})