I'm studying about Jsoup and developing my own app showing some events.
I want to parse this Home Page
And I want to parse This Image
So, I wrote code like this.
private String url = "http://event.lottecinema.co.kr/LCHS/Contents/Event/event-summary-list.aspx";
...
Elements imgs = document.select("html body form#form1 div#wrap div#container.sub div#content div.event_Hwrap.allevPg ul#emovie_list_20.emvie_list li a " );
...
for(Element img : imgs) {
imageTitles.add(img.attr("alt")); //event title list }
But there are not any images...
I don't know why.. because I parsed some images other Google sites.
you may try this selector
Elements imgs = document.select("body img");
for(Element img : imgs)
{
String imgalt_attrval = img.attr("alt");
String imgsrc_attrval = img.attr("src")
}
Related
I have an image in File Cabinet that I want to add to my PDF. I have a script that creates a PDF and adds that image to it.
I tested the link https://system.na2.netsuite.com${imgURL} on my browser and the image loads. However I get a strange error when I try to add it to my PDF below:
var myImageFromFileCabinet = file.load({id:10202});
imgURL = myImageFromFileCabinet.url;
xmlStr = `<body><img src="https://system.na2.netsuite.com${imgURL}"></body>`;
let pdfFile = render.xmlToPdf({ xmlString: xmlStr });
context.response.writeFile({
file: pdfFile,
isInline: true
});
"type":"error.SuiteScriptError","name":"USER_ERROR","message":"Error Parsing XML: The reference to entity "c" must end with the ';' delimiter.
How can I add an image to a PDF?
TLDR: Escape the URL string for use in XML
The root cause of your error is that you are not escaping the URL for use in XML. The & characters in the URL must be escaped as XML/HTML entities. You can do this with the N/xml.escape() function:
const imgURL = xml.escape({xmlText: myImageFromFileCabinet.url});
That said, there were several other issues I had to resolve with this code along the way:
Outer tag must be pdf
The initial error I got when running this code was:
Error Parsing XML: Outer tag is body, should be pdf or pdfset
I fixed this by wrapping the <body> in a <pdf>.
img tag must be closed
Next I needed to close the <img> with </img> (or /> whichever you prefer).
Summary
My full working onRequest looks like:
const onRequest = (context) => {
const myImageFromFileCabinet = file.load({id:1820});
const imgURL = xml.escape({xmlText: myImageFromFileCabinet.url});
const xmlString = `<pdf><body><img src="https://system.na2.netsuite.com${imgURL}"/></body></pdf>`;
const pdfFile = render.xmlToPdf({ xmlString });
context.response.writeFile({
file: pdfFile,
isInline: true
});
};
Note that I've also made some minor changes like renaming variables and adding some const keywords, as well as of course changing the image's internal ID for my own account.
I am using Cloudinary to host my media on the cloud for my NodeJS project.
To delete an image from the Clodinary Cloud, I need to pass a Public Id for that image, to the Cloudinary API.
I realised, Public ID is embedded into the url, how to I extract it out from the URL?
Because, I don't want to store my data in this format :
image : {
url : `http://res.cloudinary.com/cloud_name/image/upload/v1647610701/rsorl4rtziefw46fllvh.png`,
publicId : `rsorl4rtziefw46fllvh`
}
Rather, I find it better to store it like this :
image : `http://res.cloudinary.com/cloud_name/image/upload/v1647610701/rsorl4rtziefw46fllvh.png`
The solution to this problem is to implement a funciton which extracts the publicId for every URL passed in as argument.
Here's the function :
const getPublicId = (imageURL) => imageURL.split("/").pop().split(".")[0];
Edited after #loic-vdb 's suggestion
Explanation :
It splits the string in an array using "/" as seperator.
imageURL="http://res.cloudinary.com/cloud_name/image/upload/v1647610701/rsorl4rtziefw46fllvh.png";
becomes,
imageURL = [ 'http:',
'',
'res.cloudinary.com',
'cloud_name',
'image',
'upload',
'v1647610701',
'rsorl4rtziefw46fllvh.png' ]
Next, pop the array (returns the last element of the array)
imageURL = 'rsorl4rtziefw46fllvh.png';
Now, split this string into array using "." as seperator, we get :
imageURL = [ 'rsorl4rtziefw46fllvh', 'png' ]
Finally select the 0th element that is our PublicId return that
imageURL = 'rsorl4rtziefw46fllvh';
Based on the answer by a Cloudinary support team member
... the public_id contains all folders and the last part of the public_id is the filename.
Here is what I tried and worked
const path = require("path");
const getPublicId = (imageURL) => {
const [, publicIdWithExtensionName] = imageURL.split("upload/");
const extensionName = path.extname(publicIdWithExtensionName)
const publicId = publicIdWithExtensionName.replace(extensionName, "")
return publicId
};
especially for cases where you store your assets in folders
I got list of videos from API, it has list of urls fo thumbnail and i would like to combine thumbnails of each video to gif. When i loop through videos and don't generate gifs it goes through 5 times as expected, but if i include function that should generate gifs it only goes through once, without any errors. I have no idea what is happening
I'm using node.js, discord.js, get pixels and gif-encoder modules to generate thumbnails.
for(i=0;i<5;i++){
generateThumbnail(data[i].video.video_id,data[i].video.thumbs,function(){
var tags = '';
for(t=0;t<data[i].video.tags.length;t++){
tags = tags + data[i].video.tags[t].tag_name+', ';
}
fields = [
{name:data[i].video.title,
value:value},
{name:'Tags',
value:tags}
]
msg.channel.send({embed: {
color: 3447003,
thumbnail: {
"url": ""
},
fields: fields,
}});
});
}
function generateThumbnail(id,images,fn){
var pics = [];
console.log(id)
var file = require('fs').createWriteStream(id+'.gif');
var gif = new GifEncoder(images[0].width, images[0].height);
gif.pipe(file);
gif.setQuality(20);
gif.setDelay(1000);
gif.setRepeat(0)
gif.writeHeader();
for(i=0;i<images.length;i++){
pics.push(images[i].src)
}
console.log(pics)
addToGif(pics,gif);
fn()
}
var addToGif = function(images,gif, counter = 0) {
getPixels(images[counter], function(err, pixels) {
gif.addFrame(pixels.data);
gif.read();
if (counter === images.length - 1) {
gif.finish();
} else {
addToGif(images,gif, ++counter);
}
})
}
if i dont use GenerateThumbnail function it goes through 5 times as expected and everything works fine, but if i use it it goes through only once, and generated only 1 gif
Use var to declare for vars. Ie for(var i=0....
If you declare vars without var keyword, they are in the global scope. ..... and you are using another i var inside the function but now it is the same var from the outer for loop.
In jenkins pipeline,
I was launch multiple URL in side groovy script, like as below
stages {
stage("Launch URL") {
steps {
script {
def url1 = "https://www.paypal.com/us/home".toURL().getText()
def url2 = "https://www.ebay.com".toURL().getText()
def url3 = "https://www.yahoo.com/".toURL().getText()
}
}
}
}
Is there a better way to do this one.
Is it possible to use one variable and execute all three urls?
In the inner part of your code, you can do the following in groovy:
def texts = ["https://www.paypal.com/us/home",
"https://www.ebay.com",
"https://www.yahoo.com/".collect {
it.toURL().text
}
where texts will be a List<String> containing the string content returned from each url respectively.
I'm using CouchApp to build an easy web application that allows to upload and manage pictures. The actual image file is stored as attachment to the doc like show below.
{
"_id":"09fe82d75a26f9aa5e722d6b220180d2",
"_rev":"2-5797b822c83b9d41545139caa592f611",
"data":"some additional fields with info about the image",
"_attachments":
{
"foo.jpg":
{
"stub":true,
"content_type":"image/jpeg",
"length":23721
}
}
}
But for integrating the image in html i need the url to the attachment. How do i get this url?
I'm using evently and mustache for generating the web pages. Below is the data.js for reading the data:
function(data) {
return {
items : data.rows.map(function(r) {
return {
id : r.value._id,
rev : r.value._rev,
title : r.value.description,
url : "how am i supposed to do this?"
};
})
};
};
The URL to the attachment would be http://domain/database/09fe82d75a26f9aa5e722d6b220180d2/foo.jpg
If your filenames are dynamic, you would have to iterate the _attachments object and fetch the keys on your way - that's where your filename would be.
for(var filename in r.value._attachments){break;}
// ...
url : '<database>/' + r.value._id +'/'+filename;