I've just stared learning Jsoup and the cookbook on their website but I'm just a bit stuck with addling text to an element I've parsed.
try{
Document doc = Jsoup.connect(url).get();
Element add = doc.prependText("a href") ;
Elements links = add.select("a[href]");
for (Element link : links) {
PrintStream sb = System.out.format("%n %s",link.attr("abs:href"));
System.out.print("<br>");
}
}
catch(Exception e){
System.out.print("error --> " + e);
}
Example run with google.com I get
http://www.google.ie/imghp?hl=en&tab=wi<br>
http://maps.google.ie/maps?hl=en&tab=wl<br>
https://play.google.com/?hl=en&tab=w8<br>
But I really want
<a href> http://www.google.ie/imghp?hl=en&tab=wi<br></a>
<a href> http://maps.google.ie/maps?hl=en&tab=wl<br></a>
<a href> https://play.google.com/?hl=en&tab=w8<br></a>
With this code I've gotten all the links off the page but I want to also get the and tags so I can them create my on webpage. I've tried adding a string and prepend text but just can't seem to get it right.
Thanks
with link.attr(...) you get the attribute value.
But you need the whole tag:
Document doc = Jsoup.connect(...).get();
for( Element e : doc.select("a[href]") ) // Select all 'a'-Tags with 'href' attribute
{
String wholeTag = e.toString(); // Get a string as the element is
/* No you you can use the html - in this example for a simple output */
System.out.println(wholeTag);
}
Related
I'm using JSoup to grab content from web pages.
I want to get all the links on a page that have some contained text (it doesn't matter what the text is) just needs to be non-empty/image etc.
Example of links I want:
Link to Some Page
Since it contains the text "Link to Some Page"
Links I don't want:
<img src="someimage.jpg"/>
My code looks like this. How can I modify it to only get the first type of link?
Document document = // I get my document object
Elements linksOnPage = document.select("a[href]")
for (Element page : linksOnPage) {
String link = page.attr("abs:href");
// I do stuff with the link
}
You could do something like this.
It does it's job though it's probably not the fanciest solution out there.
Note: the function text() gets you a clean text so if there are any HTML code fragements inside it, it won't return them.
Document doc = // get the doc
Elements linksOnPage = document.select("a");
for (Element pageElem : linksOnPage){
String link = "";
if(pageElem.text().trim().equals(""))
continue;
// do smth with it
}
I am using this and it's working fine:
Document document = // I get my document object
Elements linksOnPage = document.select("a:matches(([^\\s]+))");
for (Element page : linksOnPage) {
String link = page.attr("abs:href");
// I do stuff with the link
}
Existing HTMl Document
Link
Like to convert it as:
Link
Using JSoup Java library many fancy parsing can be done. But not able to find clue to add attribute like above requirement. Please help.
To set an attribute have a look at the doc
String html = "<html><head><title>First parse</title></head>"
+ "<body><p>Parsed HTML into a doc.</p>Link</body></html>";
Document doc = Jsoup.parse(html);
Elements links = doc.getElementsByTag("a");
for (Element element : links) {
element.attr("onclick", "openFunction('"+element.attr("href")+"')");
element.attr("href", "#");
}
System.out.println(doc.html());
Will change :
<a href="http://google.com">
into
Link
Use Element#attr. I just used a loop but you can do it however you want.
Document doc = Jsoup.parse("Link");
for (Element e : doc.getElementsByTag("a")){
if (e.text().equals("Link")){
e.attr("onclick", "openFunction('http://google.com')");
System.out.println(e);
}
}
Output
Link
So yeah, suppose I have this piece of HTML
<p>And finally, how about some Links?</p>
and I want to access and modify the "And finally, how about some" part only, and get this:
<p>new text Links?</p>
I can't seem to figure out how. Here's what I've tried so far:
Document doc = null;
try {
doc = Jsoup.connect("http://csb.stanford.edu/class/public/pages/sykes_webdesign/05_simple.html").userAgent("Mozilla").get();
} catch (IOException e1) {
e1.printStackTrace();
}
Elements d = doc.body().children();
Element e = d.get(20); //Assuming the HTML line in question is found at index 20
e.text("new text") //just outputs <p>new value</p>, which is not good for me
It seems that I can access it by
Element e = d.get(20);
System.out.println("\n"+e.ownText()); //outputs: And finally, how about some
but modifying it doesn't work.
Element e = d.get(20);
String s = e.toString().replace(e.ownText(), "new text");
e.text(s);
System.out.println(e.toString());
The output for the code above is
<p><p>changed <a href="http://www.yahoo.com/">Links?</a></p></p>
It seems to be taking the tags as literals, but I want them as < or > because I then have to re build the webpage with the new text.
Any kind of help will be hugely appreciated.
How about something like
Element e = d.get(20);
e.text("new text");
e.append("Links?");//lets you add HTML.
If link is dynamic and you don't want to change it you can earlier store it and use later
Element e = d.get(20);
Element link = e.child(0);
e.text("new text");
e.append(link.toString());
I am trying to extract "Know your tractor" and "Shell Petroleum Company.1955"? Bear in mind that that is just a snippet of the whole code and there are more then one H2/H3 tag. And I would like to get the data from all the H2 and H3 tags.
Heres the HTML: http://i.stack.imgur.com/Pif3B.png
The Code I have just now is:
ArrayList<String> arrayList = new ArrayList<String>();
Document doc = null;
try{
doc = Jsoup.connect("http://primo.abdn.ac.uk:1701/primo_library/libweb/action/search.do?dscnt=0&scp.scps=scope%3A%28ALL%29&frbg=&tab=default_tab&dstmp=1332103973502&srt=rank&ct=search&mode=Basic&dum=true&indx=1&tb=t&vl(freeText0)=tractor&fn=search&vid=ABN_VU1").get();
Elements heading = doc.select("h2.EXLResultTitle span");
for (Element src : heading) {
String j = src.text();
System.out.println(j); //check whats going into the array
arrayList.add(j);
}
How would I extract "Know your tractor" and "Shell Petroleum Company.1955"? Thanks for your help!
Your selector only selects <span> elements which are inside <h2 class="EXLResultTitle">, while you actually need those <h2> elements themself. So, just remove span from the selector:
Elements headings = doc.select("h2.EXLResultTitle");
for (Element heading : headings) {
System.out.println(heading.text());
}
You should be able to figure the selector for <h3 class="EXLResultAuthor"> yourself based on the lesson learnt.
See also:
Jsoup cookbook - CSS selectors
Jsoup Selector API documentation
Document doc = Jsoup.connect("http://reviews.opentable.com/0938/9/reviews.htm").get();
Element part = doc.body();
Elements parts = part.getElementsByTag("span");
String attValue;
String html;
for(Element ent : parts)
{
if(ent.hasAttr("class"))
{
attValue = ent.attr("class");
if(attValue=="BVRRReviewText description")
{
System.out.println("\n");
html=ent.text();
System.out.println(html);
}
}
}
Am using Jsoup.jar for the above program.
I am accessing the webpage and my aim is to the print the text that is found within the tag <span class="BVRRReviewText description">text</span>.
But nothing is getting printed as output. There is no contents added to the String html in the program. But attValue is getting all the attribute values of the span tag.
Where must I have went wrong? Please advise.
if(attValue=="BVRRReviewText description")
should be
if(attValue.equals("...")) surely?
This is Java, not Javascript.
Change
attValue=="BVRRReviewText description"
for
attValue.matches("...")