my data, which I try to pass from my controller to the view is apparently ignored. The console doesn't output any errors. Can somebody point me to the apparently obvious mistake I did?
Controller
#RequestMapping("/notes")
public String index(ModelMap model) {
String test = "Hello Felix";
model.addAttribute("hello", test);
return "notes";
}
View
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%# page contentType="text/html; charset=UTF-8" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Notes</title>
</head>
<body>
<h1>${hello}</h1>
</body>
</html>
HTML Source
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Notes</title>
</head>
<body>
<h1></h1>
</body>
</html>
You need to return the model, something like the following should work:
Map model = ...
model.put(name, value);
return new ModelAndView(view, model);
Related
My controller:
#Controller
public class IndexController {
#RequestMapping(value = "/index")
public String index(Model model) {
model.addAttribute("message", "Hello World!");
return "index";
}
}
My page:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset = "ISO-8859-1" />
<link href = "css/styles.css" rel = "stylesheet"/>
<title>Spring Boot Application</title>
</head>
<body>
<h4>Spring boot.</h4>
<p th:utext="${message}"></p>
</body>
</html>
Upon loading and rendering, this HTML appears; how do I get the message to appear?
<!DOCTYPE html>
<html>
<head>
<meta charset = "ISO-8859-1" />
<link href = "css/styles.css" rel = "stylesheet"/>
<title>Spring Boot Application</title>
</head>
<body>
<h4>Spring boot.</h4>
<p></p>
</body>
</html>
Ensure you have imported the thymeleaf dependency into your project.
Use th:text="${message}"
Method in IndexController is never being called, because this:
#RequestMapping(value = "/index")
Should be this:
#RequestMapping(value = "/")
I'm having a problem with displaying a string in jsp view. A a web framework I'm using Spring MVC.
The view (return.jsp) is like that:
<%# page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>FredomWings</title>
</head>
<body>
<b>Result -></b>
<p>${currentValue}</p>
</body>
</html>
The controller looks like that:
#RequestMapping(value="balance")
public String getBalance(Model model) {
model.addAttribute("currentValue","alalal");
return "return";
}
What is the reason for which in the jsp page only Result -> without any value is displayed?
I am trying to bind a list to drop down in JSP. Below is my controller and JSP.
Controller:
#Controller
public class WeatherServiceController {
#Value("#{'${countryList}'.split(',')}")
private List<String> countries;
#ModelAttribute("CountriesList")
private List<String> getCountries(){
System.out.println(countries.size());
return countries;
}
#RequestMapping(value = "/getweather", method=RequestMethod.GET)
public ModelAndView getWeather(){
Place p = new Place();
ModelAndView mav = new ModelAndView();
mav.addObject("place",p);
mav.setViewName("home");
return mav;
}
}
JSP:
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Weather Service Client - Home</title>
</head>
<body>
<h2>Welcome to Weather Service</h2>
<form:form modelAttribute="place" action="getWeather">
<table>
<tr>
<td><form:label path="country">Country:</form:label></td>
<td>
<form:select path="country" items="${CountriesList}">
</form:select>
</td>
</tr>
</table>
</form:form>
</body>
</html>
But I am getting error like "Type [java.lang.String] is not valid for option items". Country list is not coming in jsp page. Please help me what I did wrong here.
It is working now.
I have added below line in jsp page.
<%# page isELIgnored="false" %>
I thought by default "isELIgnored" is set to false, so I haven't included earlier. After including this page is binding list result.
My get ParameterValues method is not working, i am trying to retrieve the values from JSP page to MVC controller below is the code snipet for MVC page
#RequestMapping(value="/searchQuery", method=RequestMethod.POST)
public ModelAndView submitForm(HttpServletRequest request, ModelAndView model) {
System.out.println("Called submitfform method");
String[] listBox1 = request.getParameterValues("selectedright");
String[] listBox2 = request.getParameterValues("selectedright2");
String to_date=request.getParameter("date1");
String from_date=request.getParameter("date2");
System.out.println(listBox1);
System.out.println(listBox2);
List<ItemMaster> lists=itemDao.fetchRecords(listBox1,listBox2,to_date,from_date);
model.addObject("queryResult",lists);
model.setViewName("results");
System.out.println(lists.size());
// m.addAttribute("message", "Successfully Requested person: " + adhoc.toString());
return model;
}
Below is the snipet of JSP page from where I am trying to retrieve whole JSP page is to big to paste over here.
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%#taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%# taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<!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>ADHOC Report</title>
<link rel="stylesheet"
href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css">
<script>
<! -- My Functions >
</script>
</head>
<BODY id="body" bgcolor="#f5f5f5" onload="preventBack();">
<!-- <onpageshow="if(event.persisted) preventBack();"> -->
<form:form action="searchQuery" method="post">
<table width="100%" height="30%" border="1" align="center"
cellpadding="4" style="text-align: center; background-color: white">
</table>
<br>
**index.jsp (client side)**
**************************************************************************************
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Techniques AJAX - XMLHttpRequest</title>
<script type="text/javascript" src="oXHR.js"></script>
<script type="text/javascript">
<!--
function request(callback) {
var xhr = getXMLHttpRequest();
xhr.onreadystatechange = function(){
if (xhr.readyState == 4 && (xhr.status == 200 || xhr.status == 0)) {
alert(xhr.responseText);
var text = xhr.responseText;
var myObject = eval('(' + text + ')');
callback(myObject.Addresses);
}
};
xhr.open("GET", "jsonResponse.jsp", true);
xhr.send(null);
}
function readData(oData) {
alert(oData);
}
function getXMLHttpRequest() {
var xhr = null;
if (window.XMLHttpRequest || window.ActiveXObject) {
if (window.ActiveXObject) {
try {
xhr = new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
xhr = new ActiveXObject("Microsoft.XMLHTTP");
}
} else {
xhr = new XMLHttpRequest();
}
} else {
alert("Votre navigateur ne supporte pas l'objet XMLHTTPRequest...");
return null;
}
return xhr;
}
//-->
</script>
</head>
<body>
<p>
<button onclick="request(readData);">Afficher le fichier XML</button>
<div id="output"></div>
</p>
</body>
</html>
***jsonResponse.jsp (server side)***
**********************************************************************************
<%--
Document : jsonResponse
Created on : Mar 4, 2012, 8:39:23 PM
Author : ghorbel
--%>
<%#page import="org.json.JSONException"%>
<%#page import="org.json.JSONArray"%>
<%#page contentType="text/html; charset=UTF-8"%>
<%#page import="org.json.simple.JSONObject"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
<%
JSONObject json = new JSONObject();
JSONArray addresses = new JSONArray();
JSONObject address;
try
{
int count = 15;
for (int i=0 ; i<1 ; i++)
{
address = new JSONObject();
address.put("CustomerName" , "Decepticons" + i);
addresses.put(i,address);
}
json.put("Addresses", addresses);
}
catch (JSONException jse)
{
}
response.getWriter().flush();
response.setContentType("application/json");
response.getWriter().write(json.toString());
%>
</body>
</html>
The result of 'alert(xhr.responseText);' (the json return response from the server).
*************************************************************************************************
{"Addresses":[{"CustomerName":"Decepticons0"}]}
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>
****************************************************************************************
The problem here that the 'var myObject = eval('(' + text + ')');' cannot evaluate the json return response from the server.(the result is just above).
My question. Why the result contains these extra linges.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
</body>
</html>
when it' supposed to return just
{"Addresses":[{"CustomerName":"Decepticons0"}]}.
If someone can tell me what's wrong with the program.
I use Netbeans , Glassfish.
Thanks in advance.
As well as your code your JSP contains literal HTML. You only want the <%#page import...%> and your central code inside <% ... %> that does the work.