how can I get certain parameter from url directly from struts2?
http://apps.facebook.com/testApp/myaction.action#param1=a1afacf5¶m2=AAADpzov7PBMBA
Previously, getting param1 and 2 from javascripts in JSP using window.location.href.slice. Now I want to get those params directly from action class. I tried to get those using request.getParameter("param1"), but getting null.
All you need to create property in your action class and provide there getter and setters,once this is done framework will push them in to the ValueStack with action processing.
OGNL expression will help you to access the properties being there in the Value-Stack.You have to do something like
Action Class
public class MyAction extends ActionSupport{
private String param1;
private Sting param2;
// provide getter and setters for the above properties
public String execute() throws Exception{
// your action logic and provide param1,param2 values which you want in you JSP
return SUCCESS;
}
}
once you action get called both the parameters will be pushed to value stack with the values you have provided in the action class,all you need to access them in your JSP with OGNL like
JSP page
<s:property name="param1" value="param1"/>
<s:textfiled name="param2" value="%{param2}"/>
Related
When it try trigger to updated life hook when property is changed/updated not work
example
...
public function updatedName($name){
dd($this->name);
}
and I find this message from livewire doc.
Please note that mutating a property directly inside a Livewire component class doesn't trigger any of the updating/updated hooks.
Please. do someone can explain in detail this message from https://laravel-livewire.com/docs/2.x/lifecycle-hooks meaning and what should be done instead
The warning means that the Lifecycle Hooks are not called when you update a property inside the PHP component class.
An example usage is to catch when a user updates a property via the wire:model attribute.
class HelloWorld extends Component
{
public $foo;
public function updatedFoo($value)
{
//
}
public function mount()
{
$this->foo = "New Value";
// updatedFoo will NOT be called
}
}
<input type="text" wire:model="foo" />
<!-- Entering text into this field will cause the hook to be called -->
try this
public $name;
public function updatedName($value)
{
// if you want get value
dd($value);
// if you want change name to new value
$this->name = $value
}
I have Spring Boot application with a rest endpoint in a #RestController annotated class that is something like this:
#Postmapping(path = "<url>")
private #ResponseBody ResponseEntity<?> methodName(
otherParameters otherParameters,
#Valid #RequestBody Entity entity,
Errors errors) {
if(errors.hasErrors()) {
// log something
// do something
}
// rest of the controller
}
The Entity class is something like this:
public class Entity {
#Pattern(regexp = "[^<>&]+")
private String someString;
// getters and setters
}
But when I try to reach the controller with someString as some&tring, the #Valid annotation does not seem to work.
This is accessible only from a rest call. There are no forms that use this action.
There is no spring-security implementation in this application at the moment.
What am I missing here?
Be sure to add #Valid on the member fields of your pojos if those fields represent pojo's themselves, otherwise the validation does not propagate.
I think you are missing the object add to the page.
check the following code.
check 1 :
// on controller side
#GetMapping("/registration")
public String registration(Model model) {
model.addAttribute("entity", new Entity());
return "registration";
}
#PostMapping("/registration")
public String registration(#ModelAttribute("entity") Entity entity, BindingResult bindingResult) {
if (bindingResult.hasErrors()) {
return "registration"; // stay on that page here
}
return "login"; // after no error go here
}
use this entity in form on the page where you want to access the validation
<form action="#" th:action="#{/registration}" th:object="${entity}" method="post" class="m-t">
check 2 :
both the get and post method must be the same name for the object created like **entity**
I am trying to receive data from the Web Service and I am getting the Data from Web Service back but it is form of [object Object]. Can anybody help me on this.
Below is the code for my web service:
public class WebServiceAccess
{
private var webService:WebService;
private var serviceOperation:AbstractOperation;
private var myValueObjects:ValueObjects;
private var method:String;
[Bindable]
public var employeeData:ArrayCollection;
[Bindable]
public var employees:ArrayCollection;
public function WebServiceAccess(url:String, method:String)
{
webService = new WebService();
this.method = method;
webService.loadWSDL(url);
webService.addEventListener(LoadEvent.LOAD, ServiceRequest);
}
public function ServiceRequest():void
{
serviceOperation = webService.getOperation(method);
serviceOperation.addEventListener(FaultEvent.FAULT, DisplayError);
serviceOperation.addEventListener(ResultEvent.RESULT, DisplayResult);
serviceOperation.send();
}
public function DisplayError(evt:FaultEvent):void
{
Alert.show(evt.fault.toString());
}
public function DisplayResult(evt:ResultEvent):void
{
employeeData = evt.result as ArrayCollection;
Alert.show(employeeData.toString());
}
}
First of all, evt.result is not an ArrayCollection, it is an Object (unless your SOAP service/WSDL are completely screwed up/malformed XML).
Second, you can't just display an Array or ArrayCollection (or generic Object, even) as a String (even though the .toString() method always seems to imply that) anyway, you have to parse the data to get what you want from it.
Now, the WebService class is nice in that it automatically parses the XML file that a SOAP service returns into a single usable Object. So that is actually the hard part.
What you need to do is call various properties of the object to get the data you need.
So if the XML return (look at your WSDL to see what the return should be, I also highly suggest soapUI) is this:
<employee name="Josh">
<start date="89384938984"/>
<photo url="photo.jpg"/>
</employee>
And you wanted to display "Josh" and the photo, you would do this.
var name:String = e.result.employee.name;
var url:String = e.result.employee.photo.url;
It does get more complicated. If the WSDL allows for multiple nodes with the same name at the same level, it does return an ArrayCollection. Then you have to loop through the array and find the exact item you need.
Just remember: The WSDL is god. Period. If it says there can be multiple "employee" nodes, you have to code accordingly, even if you don't see more than one in your tests. The issue is that there always could be multiple nodes.
I have the need to implement an ice:commandButton that passes a list to its backing bean. I'm not in a portlet scope, but in a tag scope.
I know that when I retrieve an f:attribute from the actionListener I get an object that has to be casted.
I want to know if I can map f:attribute to a List<MyClass>, where the actual instance of the list is actually an ArrayList and MyClass is serializable.
Something like:
MyTag.xhtml
<ice:commandButton actionListener="#{TagBean.doPrintItems}">
<f:attribute name="collection" value="#{items}" />
</ice:commandButton>
//[other things]
MyPortlet.jspx
<my:printPopup items="#{BackingBean.itemsToPrint}" />
BackingBean.java
class BackingBean {
private List<MyClass> itemsToPrint;
//getter and setter of course
}
TagBean.java
class TagBean {
private List<MyClass> collection;
//getter and setter of course
public void doPrint(ActionEvent e) {
collection = (List<MyClass>) e.getComponent().getAttributes().get("collection");
}
Do you think this is feasible? Thanks
The <f:attribute> gives you the possibility to add custom component attributes. They will be stored in the component tree state in the server side. So it can be any Java object type you want. The method UIComponent#getAttributes() also hints that less or more; it returns a Map<String, Object>, not a Map<String, String>. I believe your doubt is based on the fact that HTTP request parameters can only be strings. But component attributes should not be confused with HTTP request parameters.
How do I test which view was rendered from a controller action if what I get is a T4MVC_ActionResult? Under normal circumstances I should be able to directly use TestHelper's methods, like in the examples:
pooController.Details().AssertViewRendered().ForView("Details")
...but, since through T4MVC I get a T4MVC_ActionResult instead of a ViewResult, the part AssertViewRendered<>().ForView("Details") fails. What alternative do I have if I want to test which view was invoked?
UPDATE:
Here's the test code:
[TestMethod]
public void Theme_Controller_Details_Action_Returns_Details_View()
{
var builder = new TestControllerBuilder();
var mockThemeRepository = new Mock<IThemeRepository>();
var themeController = builder.CreateController<Evalgrid.Website.Controllers.ThemeController>(mockThemeRepository.Object);
builder.InitializeController(themeController);
var result = themeController.Details();
result.AssertViewRendered().ForView("Details");
}
I used the debugger setting a breakpoint after the result line, and its variable type is T4MVC_ActionResult, while themeController is Evalgrid.Website.controllers.ThemeController. Note that I have used the fully qualified name of the controller.
I get this:
Expected result to be of type
ViewResult. It is actually of type
T4MVC_ActionResult.
I don't know what's going on.
Actually, T4MVC should not make a difference here. If you directly instantiate your controller and call an action method, you'll get the same thing back whether you use T4MVC or not. i.e. you won't get a T4MVC_ActionResult.
It's only when you write MVC.Foo.Details() that you'll get a T4MVC_ActionResult. That's because MVC.Foo returns an instance of a derived class which does special thing, and not directly your controller class.
Does that make sense?
Update: I'm confused, as looking at the sources for TestControllerBuilder.CreateController, it has:
public T CreateController<T>(params object[] constructorArgs) where T : Controller
{
var controller = (Controller)Activator.CreateInstance(typeof(T), constructorArgs);
InitializeController(controller);
return controller as T;
}
So it's directly instantiating the type that you pass in, which should just call your normal action.
One question about your code: does your Details action method take any parameters? If so, that would explain the problem, as you're calling it with no params, which would be a T4MVC method added in the partial class.