I am new in Java and JQuery. I am using hidden field to hide my value but using Browser Inspector others can find my data. how can I hide values in Browser.
out.println("<form method='post' action='test.jsp'>");
out.println("<input type=hidden name=test1 value=" + test1 + " />");
out.println("<input type=hidden name=test2 value=" + test2 + " />");
out.println("<input type=hidden name=test3 value=" + test3 + " />");
out.println("<input type=hidden name=test4 value=" + test4 + " />");
out.println("<input type=submit value=Launch />");
out.println("</form>");
html renders the data on users browser, html standards offers you to hide data by only using hidden form fields, the initial purpose of hidden form field to allow session tracking.
with hidden form field user can view the content when he views the source,
if you want to hide data i suggest to use some kind of encryption.
Related
We have a requirement where we are asking our customers to fill the BRD document which is in a HTML file. HTML consists of radio buttons, text box etc along with colors and table. We will have a button which when clicked should call a java class which exports the HTML along with data customer inputs to word document. We are successful in converting a HTML code which is given directly as a string in the java program to word document. We are having issues in sending the HTML along with data.
Can any one let me know how I can achieve this? Or is there any better way we can do this.
public class XhtmlToDocx {
public static void main(String[] args) throws Exception {
//String html = "<html><form><input type=\"checkbox\" name=\"xhtml_mp_tutorial_chapter\" value=\"1\"/></form></html>";
String html = "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">"+
"<html xmlns=\"http://www.w3.org/1999/xhtml\">"+
"<head>"+
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">"+
"<title>Untitled Form</title>"+
"<link rel=\"stylesheet\" type=\"text/css\" href=\"view.css\" media=\"all\">"+
"<script type=\"text/javascript\" src=\"view.js\"></script>"+
"<script type=\"text/javascript\" src=\"calendar.js\"></script>"+
"</head>"+
"<body id=\"main_body\" >"+
" "+
" <img id=\"top\" src=\"top.png\" alt=\"\">"+
" <div id=\"form_container\">"+
" "+
" <h1><a>Untitled Form</a></h1>"+
" <form id=\"form_82495\" class=\"appnitro\" method=\"post\" action=\"\">"+
" <div class=\"form_description\">"+
" <h2>Untitled Form</h2>"+
" <p>This is your form description. Click here to edit.</p>"+
" </div> "+
" <ul >"+
" "+
" <li id=\"li_1\" >"+
" <label class=\"description\" for=\"element_1\">Text </label>"+
" <div>"+
" <input id=\"element_1\" name=\"element_1\" class=\"element text medium\" type=\"text\" maxlength=\"255\" value=\"\"/> "+
" </div> "+
" </li> <li id=\"li_3\" >"+
" <label class=\"description\" for=\"element_3\">Multiple Choice </label>"+
" <span>"+
" <input id=\"element_3_1\" name=\"element_3\" class=\"element radio\" type=\"radio\" value=\"1\" />"+
"<label class=\"choice\" for=\"element_3_1\">First option</label>"+
"<input id=\"element_3_2\" name=\"element_3\" class=\"element radio\" type=\"radio\" value=\"2\" />"+
"<label class=\"choice\" for=\"element_3_2\">Second option</label>"+
"<input id=\"element_3_3\" name=\"element_3\" class=\"element radio\" type=\"radio\" value=\"3\" />"+
"<label class=\"choice\" for=\"element_3_3\">Third option</label>"+
""+
" </span> "+
" </li> <li id=\"li_2\" >"+
" <label class=\"description\" for=\"element_2\">Date </label>"+
" <span>"+
" <input id=\"element_2_1\" name=\"element_2_1\" class=\"element text\" size=\"2\" maxlength=\"2\" value=\"\" type=\"text\"> /"+
" <label for=\"element_2_1\">MM</label>"+
" </span>"+
" <span>"+
" <input id=\"element_2_2\" name=\"element_2_2\" class=\"element text\" size=\"2\" maxlength=\"2\" value=\"\" type=\"text\"> /"+
" <label for=\"element_2_2\">DD</label>"+
" </span>"+
" <span>"+
" <input id=\"element_2_3\" name=\"element_2_3\" class=\"element text\" size=\"4\" maxlength=\"4\" value=\"\" type=\"text\">"+
" <label for=\"element_2_3\">YYYY</label>"+
" </span>"+
" "+
" <span id=\"calendar_2\">"+
" <img id=\"cal_img_2\" class=\"datepicker\" src=\"calendar.gif\" alt=\"Pick a date.\"> "+
" </span>"+
" <script type=\"text/javascript\">"+
" Calendar.setup({"+
" inputField : \"element_2_3\","+
" baseField : \"element_2\","+
" displayArea : \"calendar_2\","+
" button : \"cal_img_2\","+
" ifFormat : \"%B %e, %Y\","+
" onSelect : selectDate"+
" });"+
" </script>"+
" "+
" </li>"+
" "+
" <li class=\"buttons\">"+
" <input type=\"hidden\" name=\"form_id\" value=\"82495\" />"+
" "+
" <input id=\"saveForm\" class=\"button_text\" type=\"submit\" name=\"submit\" value=\"Submit\" />"+
" </li>"+
" </ul>"+
" </form> "+
" <div id=\"footer\">"+
" Generated by pForm"+
" </div>"+
" </div>"+
" <img id=\"bottom\" src=\"bottom.png\" alt=\"\">"+
" </body>"+
"</html>";
WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.createPackage();
AlternativeFormatInputPart afiPart = new AlternativeFormatInputPart(new PartName("/hw.html"));
afiPart.setBinaryData(html.getBytes());
afiPart.setContentType(new ContentType("text/html"));
Relationship altChunkRel = wordMLPackage.getMainDocumentPart().addTargetPart(afiPart);
// .. the bit in document body
CTAltChunk ac = Context.getWmlObjectFactory().createCTAltChunk();
ac.setId(altChunkRel.getId() );
wordMLPackage.getMainDocumentPart().addObject(ac);
// .. content type
wordMLPackage.getContentTypeManager().addDefaultContentType("html", "text/html");
wordMLPackage.save(new java.io.File("C:/Users/****/Downloads/Word.docx"));
}
}
The problem you are facing seems to be happening because you are reading the static HTML page not the submitted page.
In order to get the full content of the submitted html, you need to submit your form first with the data, create it as a static html page and then access that page with XMLSerializer or URLStreamReader to get the final data to be passed to the word processing part of your program.
I am not providing an exact solution with code as I suppose you will be able to implement the solution yourself and you are mainly stuck on the logic.
I have this code:
out.println("<form action=\"srvSearchResults\" method=\"post\">");
out.println("<tr>");
Book b = freeBooks.get(i);
out.println("<td><input type='submit' data-isbn=\""+b.getIsbn()+"\" name=\"ddd\" value=\""+b.getTitle()+"\" style=\"padding:0; border:none; background:none; cursor:pointer\" ></td>");
out.println("<td>" + b.getIsbn() + "</td>");
out.println("<td>" + b.getAuthorName() + "</td>");
out.println("<td>" + b.getPublishDate() + "</td>");
out.println("<td>" + "Free to borrow!" + "</td>");
out.println("</tr>");
out.println("</form>");
When I click on submit in generated code the servlet function is fired and by this row:
String isbn = request.getParameter("ddd");
I try to get value of data-isbn but it's null.
Any idea how can I get data-isbn attribute on server side afer submit?
When you submit an HTML form, only the values of the form fields are sent to the server, not all of the attributes. So the way it is written now, there is no way to get the value, because your server never received it.
If you want to get your ISBN, you can add an additional hidden input field that contains it:
out.println("<input type='hidden' name='isbn' value='" + b.getIsbn() + "'>");
You can put this right after the <form> open tag.
If you submit your form you can then use
String isbn = request.getParameter("isbn");
to get the ISBN.
As a side note: <form> is an invalid parent for <tr> elements. Therefor it is possible that the form doesn't behave the way you intend it to.
I have a single servlet java file.
this is my code:
out.append(" <tr>");
out.append("<th><input type=\"text\" name=\"fname\"></th>");
out.append("<th><input type=\"text\" name=\"lname\"></th>");
out.append("<th><input type=\"text\" name=\"date\"></th>");
out.append("<th><input type=\"submit\" value=\"Submit\"></th>");
out.append(" </tr>");
3 text input and a button.
the java servlet creates that HTML, i need to read the content of the 3 inputs, and when the button is pressed i need to call a function with the 3 inputs as parameters.
Thanks for help.
EDIT: code test:
out.append("<form>");
out.append(" <tr>");
out.append("<th><input type=\"text\" id=\"fname\" name=\"fname\"></th>");
out.append("<th><input type=\"text\" name=\"lname\"></th>");
out.append("<th><input type=\"text\" name=\"date\"></th>");
out.append("<th><button type=\"submit\" value=\"Submit\">Submit</button></th>");
out.append(" </tr>");
out.append("</form>");
String fname = null;
if(request.getParameter("fname")!=null){
fname=request.getParameter("fname");
//FUNCTION
}
You need to write a form tag and on click of the submit button , submit the html form.
I'm trying to get data from html in order from a web. Html code looks like:
<div class="text">
First Text
<br>
<br>
<div style="margin:20px; margin-top:5px; ">
<table cellpadding="5">
<tbody><tr>
<td class="alt2">
<div>
Written by <b>excedent</b>
</div>
<div style="font-style:italic">quote message</div>
</td>
</tr>
</tbody></table>
</div>Second Text<br>
<br>
<img class="img" src="https://developer.android.com/_static/images/android/touchicon-180.png"><br>
<br>
Third Text
</div>
What I want to do is create an Android layout scraping html, but I need to preserve the order of the elements. In this case:
TextView => First Text
TextView => Quote Message
TextView => Second Text
ImageView => img
TextView => Third Text
The problem comes when I try to get html values in order, using JSoup I get a String with "First Text Second Text Third Text" with Element.ownText, an then img at the end, resulting:
TextView => First Text Second Text Third Text
TextView => Quote Message
ImageView => img
What can I do to get that data in order?
Thanks in advance
You can parse the html into a list of html nodes. The list of nodes will preserve the DOM order and give what you want.
Check the parseFragment method :
This method will give you a list of nodes.
Try this.
String html = ""
+ "<div class=\"text\">"
+ " First Text"
+ " <br>"
+ " <br>"
+ " <div style=\"margin:20px; margin-top:5px; \">"
+ " <table cellpadding=\"5\">"
+ " <tbody><tr>"
+ " <td class=\"alt2\">"
+ " <div>"
+ " Written by <b>excedent</b>"
+ " </div>"
+ " <div style=\"font-style:italic\">quote message</div>"
+ " </td>"
+ " </tr></tbody>"
+ " </table>"
+ " </div>Second Text<br>"
+ " <br>"
+ " <img class=\"img\" src=\"https://developer.android.com/_static/images/android/touchicon-180.png\"><br>"
+ " <br>"
+ " Third Text"
+ " </div>";
Document doc = Jsoup.parse(html);
List<String> rootTexts = doc.select("div.text").first().textNodes().stream()
.map(node -> node.text().trim())
.filter(s -> !s.isEmpty())
.collect(Collectors.toList());
System.out.println(rootTexts);
OUTPUT:
[First Text, Second Text, Third Text]
This answer is a little late, but the correct way to do what you want to do is this. For your outermost <div>, instead of getting the child elements using Element.children(), you'll want to use Element.childNodes() instead.
Element.children() only returns child Elements, in which text is not included.
Element.childNodes() returns all child nodes, which includes TextNodes and Elements.
This solution works for me.
I have an problem which in turn is causing a lot of headaches. I need to dynamically create buttons/images which link to JSF actionListener. Here is the code:
HTML:
<h:form>
<div class="carousel-container">
<div id="carousel">
<h:outputText value="#{courseBean.course}" escape="false"/>
</div>
</div>
</h:form>
what courseBean.course gets is the Overriden toString which returns the following:
#Override
public String toString() {
return "<div class=\"carousel-feature\"> "
+ "<h:commandLink id=\"" + courseID + "\" actionListener=\"#{courseBean.getCourseSelected}\">"
+ "<img class=\"carousel-image\" src=\"Images/testButton.jpg\"/>"
+ "<span style=\"display:bloack; position:absolute; top:20px; bottom:20px; left:0; right:0; "
+ "background:white; background:rgba(255, 255, 255, 0.25);\">" + courseName + "</span>"
+ "</h:commandLink> "
+ "<div class=\"carousel-caption\"> "
+ "</div>"
+ "</div>";
}//end method toString
The HTML is being rendered fine and image is being displayed in the carousel however when it is clicked actionListener is not being called which is the issue here.
edit: the actionListener only prints the courseID to the console nothing major.
Thank you for taking your time :)
That approach is wrong, if you do "view source" you will see the <h:commandLink in the source of your page (because it wont be processed by JSF life cycle at all) , while if you had a <h:commandLink in your xhtml page the generated html source will contain a <a href....> element
You better rethink of your original goal and ask a question on how to achieve it...