Result type dispatcher struts 2

If you have just started writing struts 2 application, and you are in process of configuring it then you might face this exception. The dispatcher result is used to include or forward to a target view page jsp. It is based on the model view framework mvc architect which is originally found in language smalltalk latest version of struts is 2 and which is created by using concepts of webwork and xwork flow of struts 2. Struts allow you to use other markup languages for the view technology to present the results and popular choices include velocity, freemaker, xslt and tiles. This is our action class which respond to a user action, as we know that action class is the key to struts2 application and most of the logics are implemented in this class. Type success in the name field, select dispatcher from the result type dropdown, browse for loginpage. All application specific data are held in the valuestack, one ofthe objects. It uses requestdispatcher interface to achieve it, where the target server or jsp receive the same request and response either using forward or include method. Filterdispatcher is used in the early struts2 development, and its deprecated since struts 2. You can choose between the standard set of result tokens or set a custom name. Hopefully this will help others who are trying to unit test struts 2 actions. If you dont specify the result name, by default success is assumed as the result name.

Issue with struts 2 dispatcher result struts forum at. So when validation fails and struts 2 returns input, the struts 2 framework will redisplay the view file. Action error is empty when using struts 2 dispatcher result. Struts2 is the next generation of modelviewcontroller web application frameworks. Struts also allow the user to use other mark up languages for the view technology to display the results and popular choices include velocity, freemaker, xslt and tiles. Used to forward to a servlet, jsp, html page, and so on, on the server. You set parameters on the result using the param tags. Can anybody please suggest me an alternative to result. You can always extend defined result types and implement whatever logic you need. Struts2 result result result result result struts2 struts2. Struts comes with a number of predefined result types and whatever weve already seen that was the default result type dispatcher, which is used to dispatch to jsp pages. It is based on the model view framework mvc architect which is originally found in language smalltalk. The big advantage of this type of testing is that it allows you test you. Struts 2 uses two methodologies to find out the action classes and result classes.

Struts automatically manage the view forwards in this case. Unit testing struts 2 actions wired with spring using junit. Result configuration apache struts apache software. Struts2 provides a firstclass support to freemarker template. In this case you set the actionname to displaysalesorder, and the namespace to ordersales. Result types apache struts 2 wiki apache software foundation. Struts 2 supports passing dynamic parameters to a redirect, such as the id of a newly created entity, so you can. Also the result type mapped here is typefreemarker. Can anybody please suggest me an alternative to result type dispatcher. To use dispatcher in result you need to do the following mapping. This reference describes configuration files changes between struts 1.

Jan 20, 2015 the dispatcher result type is the default type. Likewise if the name attribute is not specified, the framework will give it the name success using these intelligent defaults, the most often used result types also. If a type attribute is not specified, the framework will use the default dispatcher type, which forwards to another web resource. The dispatcher, freemaker and redirect are the commonly used result types. Alternative for struts result typedispatcher in struts2. On success of the action we forward the request to webinfftlindex. What is struts 2 and how it works jitendra zaas blog.

Result interface, ready to use in your own applications. We need to use struts2conventionplugin api to use any of these methodologies. Issue with struts 2 dispatcher result struts forum at coderanch. Struts provide a number of predefined result types. Paramnameawareresult interface when used with strutsresultbuilder can limit parameters assigned to the result. Struts 2 is the open source web application framework which simplified the creation of web applications in in java. In order to display validation messages, i am using interceptor where validation messages are will be stored in session and the same will be. In this page, we will learn struts 2 json integration using annotation. The framework provides several implementations of the com. It aims at providing increased productivity through reduced xml configuration, smart conventions, and a modular. When validation happens in struts 2 it will redirect to result type input if typetiles jsp will display the validation message and if result typeredirectaction, validation message will not get display.

This chapter will introduce you to all the results and its types used in struts 2 web application development. Rather the struts 2 framework will return input as the result of calling the action. In a secure application, a client might try to access a page without being authorized, and many actions may need access to a logon result. My goal is to be able to unit test my actions in the full struts 2 context with the interceptor stack being run which includes validation.

It forwarded the same to the dispatch the request data to the desired action. The dispatcher result type is the default type, and is used if no other result type is specified. Many features can be translated directly using the strutsmigration. Struts2 validation example struts2 validation implement by xml file in struts 2.

For json, you will require a new result type, because, obviously, since the response is a json response, you dont have a page to. Basically, struts provides you with a few result types. The action class manages the applications state, and the result type manages the view. This result invokes an entire other action, complete with its own interceptor stack and result. The actioncontext contains all of the data available to theframeworks processing of the request, including things rangingfrom application data to session or applicationscoped maps. If you have a normal web application, you can download its jar file and put it in the web application lib directory.

Hi im trying to integrate jasper with struts 2 but i got an error because of my result type jasper ive followed this tutorial my. It took a decent amount of time to figure out how to set up struts 2 with json. We are using struts 2 dispatcher result to forward our request to some jsp page. First, we need to change or query the applications state, and then we need to present an updated view of the application. Struts2 provides more options of validation like email validation, integer range validation, form validation field, expression validation, regex validation, required. Multiselect parameter behavior different between struts 2. Most often, results are nested with the action element.

Steps to create struts 2 application example tutorial. The action method should return result as json type. If the resource is a javaserver page, then the container will render it, using its jsp engine. Learn more alternative for struts result typedispatcher in struts2. Struts 2 hello world example with annotations and without. It is similar to dispatcher result, but just between actions.

Strutsuser result type redirectaction vs dispatcher. To achieve it we need to define result type as json. So you can simple extend existing result with such a functionality as below. Because struts 2 uses a filter mechanism to do the dispatching job, instead of a servlet in struts 1, and the inner forwarding action can not touch off a request filter. Learn more alternative for struts result type dispatcher in struts2. The tag is used to specify a result type in sturts. Hi im trying to integrate jasper with struts 2but i got an error because of my result type jasper ive followed this tutorial my. If you dont specify the type attribute, by default dispatcher is considered as the default result type. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information.

Also i cant use result type dispatcher as the struts version is not allowing me to do. Cannot resolve resulttype redirectaction or cannot resolve resulttype redirectaction both of which work fine in my webapp. The action is the subelement of package and represents an action. Jun 18, 2007 unit testing struts 2 actions wired with spring using junit 158 replies hopefully this entry serves as some search engine friendly documentation on how one might unit test struts 2 actions configured using spring, something i would think many, many people want to do. Is there anything which needs to be taken care issue with struts 2 dispatcher result struts forum at coderanch. Please note that you will lose the value stack objects hence the actionerrors and actionmessages during this kind of routing. Jul 28, 20 struts comes with a number of predefined result types and whatever weve already seen that was the default result type dispatcher, which is used to dispatch to jsp pages. All one has to do is to define result type freemarker. For example, passing request params to action classes, making servlet api request, response, session available to action classes, validation, i18n support etc.

Struts consists of a number of predefined result types and whatever has been seen previously that was the default result type dispatcher, which is used to dispatch to jsp pages. All application specific data are held in the valuestack, one. Solution this exception is because of wrong path configured for property. Struts 2 framework provides a good list of outofthebox interceptors that come preconfigured and ready to use. The dispatcher result forwarded the action to the different action. We can define our rules of validation in xml file and use in jsp field. As when request come business logic is executed first and after that result is to display as view. Dispatcher is the default struts2 result type it is used to execute the standard behavior, from action to jsp special results are needed to perform other operations like action to action to jsp, like redirectaction result, chain result discouraged, etc. Results and result types in struts 2 struts tutorial by. Aug 28, 2012 also the result type mapped here is typefreemarker. Actioncontext and ognl the actioncontext stores valuestack which stores request data. Check define dedicated factory to see how to do it.

There are a few things that need to be done in order to use json with struts 2. If any errors have been added then struts 2 will not proceed to call the execute method. For more complex projects, a comparison of struts 1 and 2 features and apis is provided. Dispatcher result, used for web resource integration, including jsp integration. Also i cant use result typedispatcher as the struts version is not allowing me to do. To simplify process of that, you can define your custom resultfactory and use it with connection with custom interface which your result implements. In the end, thanks to apache struts 2 documentation result types. If you extend struts default, all the actions of this package can use the interceptors and result types defined in the struts default. Struts 2 interceptors are responsible for most of the processing done by the framework. Hi we are using struts 2 dispatcher result to forward our request to some jsp page.