I have a FormPanel in GWT that should send a TextBox input to a new page (newPage.html). Below is my code. How do I receive this input in newPage.html, so that I can work with it from the associate newPage.java class? Thanks
final FormPanel form = new FormPanel();
form.setEncoding(FormPanel.ENCODING_MULTIPART);
form.setMethod(FormPanel.METHOD_POST);
TextBox userid = new TextBox();
userid.setName("userid");
form.add(userid);
form.add(new Button("Submit", new ClickListener()
{
public void onClick(Widget sender)
{
form.submit();
}
}));
form.setAction("newPage.html");
RootPanel.get("demo").add(form);
If what you are trying to do is POST variables from one gwt-page using a formpanel to another gwt-page to process these POST results you can not, simply because gwt-pages are coded with java but in the end they are translated into javascript and javascript alone can not access POST variables.
You need to define a backend that can process your form in your form.setAction() method that should execute on the server-side and produce a valid html/text response. To get these results produced by your backend you need to add a FormHandler to your FormPanel. There is an example showing how to do that on javadocs. Then evaluating these results you can redirect accordingly.
If you want to handle what you send with a java class meaning you have a java backend, why not use GWT-RPC?
Related
I am using the following code to generate a JSON for a Salesforce custom object called Resource Booking. How can I "run" the file (or call responseJSON) so that when I input the custom URL (in the first comment) it jumps to a page similar to this example web page? https://www.googleapis.com/customsearch/v1?json
Here is my code:
#RestResource(urlMapping='/demo/createTask/*') //endpoint definition > {Salesforce Base URL}/services/apexrest/demo/createTask/
global class ResourceBookingTransfer {
public List<Resource_Booking__c> resourceBookingList{get; set;}
public ResourceBookingTransfer(ApexPages.StandardController controller) {
//getResourceBookingList();
}
#HttpGet //HttpGet request
global static responseWrapper getResourceBookingList() {
responseWrapper responseJSON = new responseWrapper(); //responseWrapper object for API response
responseJSON.message = 'Hello World';
return responseJSON; //return the JSON response
//resourceBookingList = Database.query('SELECT Booking_ID__c, Booking_Name__c, Start_Date_Time__c, End_Date_Time__c, Resource__c FROM Resource_Booking__c');
}
//wrapper class for the response to an API request
global class responseWrapper {
global String message {get;set;} //message string
//constructor
global responseWrapper() {
this.message = '';
}
}
}
To just test it - it might be simplest to use https://workbench.developerforce.com. There's "REST explorer" menu in there. Your code should be available under resource similar to /services/apexrest/demo/createTask.
Why that url? Read https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_rest_code_sample_basic.htm
Once you're happy with this manual testing - you can try to do it from outside workbench. Workbench logs you in to SF and passed header with valid session id in the background. If you want to call your service from another website or mobile app - you need to perform login call first, get the session id and then run your code. There are several OAuth flows you can use to do this depending in what your app needs, maybe start with this one: https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/intro_understanding_username_password_oauth_flow.htm
Maybe it´s a strange question, but imagine this:
//We all know that View is a method...
public ActionResult Something()
{
return View("index");
}
But what if I step before this method to perform some stats
public ActionResult Something()
{
return PerformStats(View("index"));
}
I will have a private method like this:
private ActionResult PerformStats(ViewResult viewResult)
{
//THIS IS WHAT I WANT TO ACCHIEVE:
//*********************************
var contentSent = viewResult.InnerHtml.Lengh; <<-- I wish!
return viewResult;
}
And latter, what i want to do, is to save that ammount of content sent to the client.
It doesn´t matter if it is the exactly quantity of html, even if I get the .count() of a json it will do the trick.
Is any way to know the rendered content on the controller?
Thanks!
OnActionExecuting: Called before action method executes. You can put stats related logic in there.
http://msdn.microsoft.com/en-us/library/system.web.mvc.iactionfilter.onactionexecuting(v=vs.98).aspx
OnActionExecuted: Called after action method executed.
http://msdn.microsoft.com/en-us/library/system.web.mvc.iactionfilter.onactionexecuted(v=vs.98).aspx
Within these methods you can access ActionExecuting and ActionExecutedContext
If you want to get a size of rendered HTML (partial or complete view), then you probably need to:
Find the view that you want to render
Store it in the string builder
Get its length
There is a question that explains how to render view as a string within the action method: In MVC3 Razor, how do I get the html of a rendered view inside an action?
I have many submit buttons in my plain HTML . The one not working is as below:- the other are as same as below
< form:submit cssClass="action-button" name="excelBTNX" value="Excel" id="excelBTNX" />
The function of the above button in the controller is to create a excel sheet and put in session(I can download it from cookies ) and returns back .
The defination of the corrosponding method in Controller is as same as for other buttons which are working fine .
The problem with this is ,it works only at even count hit .When I click for the first time the page gets refreshed . When I click for the second time , control passes to the controller and my excel comes up as cookies.
I tried to track whether the submit is working or not with javaScript code as
$(‘form’).submit(function(){
alert("event getting fired");
});
and it gives the alert for both the cases.
I have done the validation part from the controller(manually), so local inbuilt validators are not used . So I believe they are not the case.
How do I fix it ?
Controller codes:-
#RequestMapping(value = "execute.action", method = RequestMethod.POST, params = "excelBTNX")
public String excelOut(HttpServletRequest request, HttpServletResponse response,
#ModelAttribute("mymodel") myModel model, BindingResult bindingResult, ModelMap modelmap) {
scr14(request).initializeSomeCalculation(model);// some innercalss called to manupulate model
HttpSession session = request.getSession(false);
if(1=1){//CRUD condition here true in READ mode.
model= new myModel ();
}
byte[] excel = createExcelS14(model,request);
String fileName = getExcelName() + ".xls";
String filepath = myFrameWorkUtils.createTempFile(excel, fileName);
if (session != null) {
session.setAttribute(fileDownload, filepath);
}
scr14(request).initializeSomeCalculation(model);
model.setDate(somedate);
return "myPanel";}
Here are some steps:
Check whether this issue is related to your Excel processing or whether it is something with your Controller. I assume you have something like
#RequestMapping(..., params = "excelBTNX")
public ModelAndView next(...)
{ <EXCEL FUNCTIONALITY> }
Just comment out the in the Controller and verify that the method is called every time. Please test this a let us know whether this is working.
What happens that makes you think the Controller is only called at the second click? Maybe the signs that you are looking at don't really mean that the controller is only called every second click. Please explain.
Fix if (1=1) code. = in Java is the assignment operator, == is the comparison operator. I assume you want to do a comparison. It also seems like you simplified this part of the code, but it may actually be the problem. Please post the actual code here.
I don't see anything about cookies here. It looks to me like you are creating a temporary Excel file, and setting the name of the file in the session.
session.setAttribute(fileDownload, filepath) cannot work, since the key of the session attribute map is of type String. It should probably be session.setAttribute("fileDownload", filepath).
Can you see whether there is a new temp Excel file generated with each click? You should be able to tell by the timestamp.
This may still not point to the problem, but it will certainly get us closer.
I am new to Spring mvc3 portlet and dojo. I am trying to populate select dropdown with JSON data when jsp is loaded. I want to use dojo and give ajax call to controller and return JSON when jsp is loaded. Any tips will be helpful.
#Controller
#RequestMapping("/yourController")
public class YourController
{
#RequestMapping(value="/combo/{id}", method=ReqestNethod.GET)
public String getDropDownData(#ParamValue("id") long id)
{
List<Combo> combos = commonDao.getCombos(id);
String json = JsonUtil.toJson(combos); // or whichever way you use
return json;
}
}
Send requests from dojo to this url
<your-context-path>/yourController/combo/1
where 1 is your combo id.
I haven't checked the syntax here.. Wrote it blind. You might get compilation errors.
I get data in below format
How do I populate dojoType="xwt.widget.form.FilteringSelect"
{"ValuesDTO": {"items": [{},{"default": {"size": 5},"int": 10,"string": "Product1","string": "Product1 ","string": "product3","string": "product4","string": "product5"}]}}
I am sending dat in bean--->DTO--->List
I am working with Struts2 with java action class and view JSP file.
My Action class has a variable named:
HashMap<Integer, Boolean> pcksHavingFet;
List<pck> pcks;
int fet;
In pcks, I am having a list of pck's with primary key pckId.
I am having a code function in action class that evaluates pcks and assign true/false based on if pck is/is not associated with fet in Database. So we get a fully evaluated expression for pcksHavingFet Map.
//Code that evaluates and set pcksHavingFet varaible.
//Create A JSON Object to access this Map variable in JSP.
public void function()
{
// code to populate pcksHavingFet with key/value pair.
//e.g, pcksHavingFet = {1:true, 2:fALSE, 6:TRUE, 17:false, 11:true .....}
//Create JSON Object to access Map in JSP file
JSONObject jasonfeat = new JSONObject();
jasonfeat.accumulateAll(pcksHavingFet );
}
In Jsp File,
I need to access this pcksHavingFet Map Variable.
I am using below function to show/hide fetDropdown drop down based on pckId is true/false calculated from Map pcksHavingFet.
function pcksOnChange(pckId)
{
var pcksHavingFet = <ww:property value="pcksHavingFet "/> ;
<ww:set name="pcksHavingFet" value="%{JSONObject.fromObject(pcksHavingFet)}">
</ww:set>
fetDropdown.style.display = (pcksHavingFet [pckId]) ? "" : "none";
}
But I am able to see populated values in my action class for pcksHavingFet variables. But In JSP file, unable to access it though. Its coming as empty Map.
Please help me in accessing successfully this variable. It will be a gr8 help. I am new to JSON, Please elaborate your suggestion/help.
Thanks in advance.
Why you are not using Struts2 Build in mechanism to handle JSON.Struts2 provide [Json-plugin].1
The JSON plugin is bundled with Struts since 2.1.7+
All you need to do is to add the plugin jar jar in your class path and need to extends json-default in place of struts-default and you are good to go.
Suggest you to read plugin page for details and example how to work with JSON inside Struts2
Strus2-Json
just as a side note ww represent web-work which has now merged in to Struts2 so its a bit more clear to use tag- alias as s in-place of ww, but the end choice is all yours.
When you are asking question about Struts2 better tag them with struts2 not struts :)