This question may betray my total lack of understanding, so be it, I guess. Trying the following code to display an image once the JSP page is running on Tomcat. Note, it's the tag that isn't working for me:
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>George Brown GeoQuest - Welcome</title>
</head>
<body>
<img alt="logo" src="WebContent/GBGeoQuestLogo.gif">
</br>
<h1>Welcome, GB Geoquest Team!</h1>
<form action="/Lab4">
<label>Team Name:
<input type="text" name="name">
</label><br>
<input type="submit" value="Login">
<input type="reset" value="Reset">
</form>
</body>
</html>
All I get is the blue image question-mark symbol in the top left instead of my image. Link should be viewable here: http://postimage.org/image/drnl831pz/
Can anyone steer me in the right direction?
First you need to confirm that the image file is in the war file. Once you're sure it's there try removing the "WebContent" from the url in the JSP
The value of the src-attribute is missing the context of the application. Now the hostname is used as the context root, so browser uses the wrong url, e.g. http://localhost:8080/WebContent/GBGeoQuestLogo.gif
Add the context root to the src attribute and the image will be loaded, assuming 1) it's inside the war 2) it's located in WebContent-directory in the war:
src="${pageContext.request.contextPath}/WebContent/GBGeoQuestLogo.gif"
I think your context path is Lab4/WebContent and your image is in WebContent. So in this case you can get image by,
src="${pageContext.request.contextPath}/GBGeoQuestLogo.gif"
It will search image in WebContent because your Context path is Lab4/WebContent. If still have problem than in browser View Pagesource and verify the Image path
Thank you
Related
I want to send a query string from one jsp page to jsp page but I want to hide the name-value pairs(attributes) at address bar when I send the query string.
First.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>First Page</title>
</head>
<body>
Click Here
</body>
</html>
Second.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Second Page</title>
</head>
<body>
<%
String username = request.getParameter("username");
String password = request.getParameter("password");
%>
Username : <%=username %><br/>
Password : <%=password %><br/>
</body>
</html>
Here, I pass a query string "Second.jsp?username=aditya123&password=abc12345" from First.jsp page to Second.jsp page but I want to send this without showing username and password attribute and their value at address bar.How can it possible?
Try this code
<form action="some.jsp" method="post">
<input type="text" name="uid" >
<input type="password" name="pass">
<input type="submit" name="login" >
</form>
Adding method ="post" hides the query stringThat is ,if i remove ' method="post" ' the processed url on pressing submit button would be having
Following as query string
uid="whatever i wrote in text field"&pass=""&login="Submit"
But after writing ' method="post" ' the new url will be free of query string...!
it is not possible with link.
alternate solution of not showing attribute is encode that name value pair and send it with url and decode at another page.
use either url encoder given by java or make use of your own encrypt-decrypt method.
The easiest thing to do is <form action="some.jsp" method="post">
Do this formatting in the html code.
And contents of url will be hidden...
You can store all the objects/information you want to pass to the second jsp file by storing the objects in the 'session' implicit object using session.setAttribute() method. In the second page you can retrieve those objects from the 'session' object using session.getAttribute(). My assumption here is that both the jsp pages are being executed in the same HttpSession, hence the same 'session' object will be available to both the jsp pages.
i have a very simple layout where i have three icons in the right side of the HTML page and have hard coded the Heading in the middle.
I am giving the size of heading in percentage :
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<img src="images/upload.png">
<img src="images/render.png" class="menuc">
<div style="width: 100%;text-align: center;position: fixed;z-index: 100;background-color: #C2C2A3;height: 100%">
<span id="cannvasfilename" style= "position:fixed;left:40%; z-index: 100; color:#3C3C41; font-weight:bold; background:transparent;font-size: 200%;">Filename:Meshworks Test</span>
</div>
</body>
</html>
its a very simple page and u can see the layout using the link Test.
But when i am opening this HTML page in the browser , the icons shrinks and the heading also comes in small size.
So my question is that is there any way to set the size so that it automatically takes the page length and width and then set the size of the heading and the icons. ???
I am already giving the text size in percentage so i thought this will do the task. but no !
NOTE : you can check the link i have given. Its just a sample so don't see the alignments. Only the size variance is a issue.
It will come properly in your browser but try and open the link in your mobile phone browser. That is the issue !
What simple change i can do in the code to solve this problem ?
Okay, I'll answer my own question and close this question.
I used HTML meta tag in the head and the issue is solved.
<meta name="viewport" content="width=device-width, initial-scale=1">
It might help someone with the same problem!
This question already has an answer here:
How do I pass current item to Java method by clicking a hyperlink or button in JSP page?
(1 answer)
Closed 7 years ago.
I have a facultylist.jsp page which displays List<Faculty> as a request attribute parameter in forEach loop and I want every item in this loop to be a link to specified faculty facultyview.jsp. How can I achieve that ?
facultylist.jsp:
<%# page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%#taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Faculties</title>
</head>
<body>
<h1>Faculties list</h1>
<ul>
<c:forEach var="faculty" items="${faculties}">
<li>${faculty.name}</li>
</c:forEach>
</ul>
</body>
</html>
facultyview.jsp:
<%# page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%#taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Faculty</title>
</head>
<body>
<h1>${faculty.name}</h1>
<ul>
<li>Faculty name: <c:out value="${requestScope.name}"></c:out></li>
<li>Total seats: <c:out value="${requestScope.total_seats}"></c:out></li>
<li>Budget seats: <c:out value="${requestScope.budget_seats}"></c:out></li>
</ul>
apply for this faculty
</body>
</html>
I don't know if its may help, but I'm using following technologies: tomcat, jsp, servlets and log4j.In my project I have one FrontController, which is a servlet that interacts with Command pattern - each Command returns a path to resource and action type: forward or redirect.
You can solve your issue by adding a query params to the link, edit with respect to the comment. Note that you cannot access directly the JSP pages that reside under WEB-INF folder. Also, to encode properly the paramters, better construct url like
<c:url value="facultyview.jsp" var="url">
<c:param name="name" value="${faculty.name}"/>
<c:param name="total_seats" value="${faculty.total_seats}"/>
<c:param name="budget_seats" value="${faculty.budget_seats}"/>
</c:url>
<li>${faculty.name}</li>
and than than in your facultyview.jsp read from the query params
<li>Faculty name: ${param.name}</li>
<li>Total seats: ${param.total_seats}</li>
<li>Budget seats:${param.budget_seats}</li>
This direct JSP communication should solve your immediate issue, but a truly proper way would be to pass an id of a faculty to servlet, fetch the faculty instance, place in the model and pass to the view.
in other way is just take the selected value from the drop down with a name and forward it to front controller servlet ,there use if else conditions and depends on the value you could forward the request to corresponding jsp or servlet
<select name="value"> in jsp
String value=req.getParameter("value"); in servlet
if()
else if()
If you have a field in Faculty entity simply:
${faculty.name}
#Mark: faculty represents an entity from database, i'm not sure if I want to change it adding another field, or you mean some other way ?
Add a field does not means you must change database, you can have a Helper entity that inherits from Faculty and have more fields you can need,
public class FacultyFormHelper extends Faculty implements Serializable {
private String URL;
and in your view:
${facultyHelper.name}
But, If you don't want to modify your database, either create a helper class, you may add onclick event to the <a>
<a onclick="goToURL(${faculty.id})">
Then retrieve the data... i'm not sure how you get the urls... from a variable in the view, ajax call or wherever you have this URL...
I'm writing a wizard for creating a user in my application with Spring MVC. At each step the controller will set session attributes for the completed wizard fields.
I want the wizard to look the same regardless of which page it's on, except for each page's fields, obviously. For example, menus and links at the top of the page and buttons at the bottom should remain the same.
I have the following JSP
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Create a new User</title>
</head>
<body>
<h1>User Creation Wizard</h1>
Step <c:out value = "${pageNum}"/>/<c:out value = "${pageMax}"/>
<form action="" method="POST">
<jsp:include page="userform${pageView}.jsp"/>
<input name = "currentPage" type = "hidden" value = "${pageNum}"/>
<c:if test = "${pageNum > 1}">
<input name = "prev" type = "submit" value = "Previous" />
</c:if>
<c:if test = "${pageNum < pageMax}">
<input name = "next" type = "submit" value = "Next" />
</c:if>
<c:if test = "${pageNum == pageMax}">
<input name = "submit" type = "submit" value = "Finish" />
</c:if>
</form>
</body>
</html>
In the jsp I'm including, do I need to remove the <html>, <head>, and <body> tags? The above code is based on this example.
Yes, you'd need to remove the <html>, <head> and <body> tags from the included JSP file. As they'd already be present in the including file keeping them would result in invalid HTML.
Only the content that you want to vary would be in the JSP file you're including. Everything else, including the necessary <html>, <head> and <body> tags, would be in the JSP file that does the including.
I'm looking to create an online form that on the surface is very basic.
The goal is to create a mailto form with submit button that, upon submission with copy the current url with in the browser address bar and paste it into the mailto email window.
The form itself is straight forward:
form method="post" action="mailto:address#address.ca">
Report a broken link, please use the submit button below. The URL for the broken link will be included automatically.
<br />
<input type="submit" value="Submit">
</form
the simpler the better, html/java is preferred... suggestions?
I suggest you get the URL with javascript's document.URL and do whatever you want to do with it.
Try this
<!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>
<script type='text/javascript' src='http://code.jquery.com/jquery-1.7.1.js'>
</script>
<script type='text/javascript'>
//<![CDATA[
$(window).load(function(){
var url = "mailto:address#address.ca?Subject=" + window.location;
$('#mailtoLink').attr('href', url);
window.alert($('#mailtoLink').attr('href')); // = url;
});//]]>
</script>
</head>
<body>
Some Text <a id="mailtoLink" href="mailto:address#address.ca" name="mailtoLink">Send Mail</a>
</body>
</html>