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  • Spring @Transactional Annotation Best Practice

    - by Thomas Einwaller
    We are currently discussing the Best Practice for placing the @Transactional annotations in our code. Do you place the @Transactional in the DAO classes and/or their methods or is it better to annotate the Service classed which are calling using the DAO objects? Or does it make sense to annotate both "layers"?

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  • SpringMvc java.lang.NullPointerException When Posting Form To Server

    - by dev_darin
    I have a form with a user name field on it when i tab out of the field i use a RESTFUL Web Service that makes a call to a handler method in the controller. The method makes a call to a DAO class that checks the database if the user name exists. This works fine, however when the form is posted to the server i call the same exact function i would call in the handler method however i get a java.lang.NullPointerException when it accesses the class that makes a call to the DAO object. So it does not even access the DAO object the second time. I have exception handlers around the calls in all my classes that makes calls. Any ideas as to whats happening here why i would get the java.lang.NullPointerException the second time the function is called.Does this have anything to do with Spring instantiating DAO classes using a Singleton method or something to that effect? What can be done to resolve this? This is what happens the First Time The Method is called using the Web Service(this is suppose to happen): 13011 [http-8084-2] INFO com.crimetrack.jdbc.JdbcOfficersDAO - Inside jdbcOfficersDAO 13031 [http-8084-2] DEBUG org.springframework.jdbc.core.JdbcTemplate - Executing prepared SQL query 13034 [http-8084-2] DEBUG org.springframework.jdbc.core.JdbcTemplate - Executing prepared SQL statement [SELECT userName FROM crimetrack.tblofficers WHERE userName = ?] 13071 [http-8084-2] DEBUG org.springframework.jdbc.datasource.DataSourceUtils - Fetching JDBC Connection from DataSource 13496 [http-8084-2] DEBUG org.springframework.jdbc.core.StatementCreatorUtils - Setting SQL statement parameter value: column index 1, parameter value [adminz], value class [java.lang.String], SQL type unknown 13534 [http-8084-2] DEBUG org.springframework.jdbc.datasource.DataSourceUtils - Returning JDBC Connection to DataSource 13537 [http-8084-2] INFO com.crimetrack.jdbc.JdbcOfficersDAO - No username was found in exception 13537 [http-8084-2] INFO com.crimetrack.service.ValidateUserNameManager - UserName :adminz does NOT exist The Second time When The Form Is 'Post' and a validation method handles the form and calls the same method the web service would call: 17199 [http-8084-2] INFO com.crimetrack.service.OfficerRegistrationValidation - UserName is not null so going to check if its valid for :adminz 17199 [http-8084-2] INFO com.crimetrack.service.OfficerRegistrationValidation - User Name in try.....catch block is adminz 17199 [http-8084-2] INFO com.crimetrack.service.ValidateUserNameManager - Inside Do UserNameExist about to validate with username : adminz 17199 [http-8084-2] INFO com.crimetrack.service.ValidateUserNameManager - UserName :adminz EXCEPTION OCCURED java.lang.NullPointerException

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  • validate form view and gridview at the same form

    - by Saeed
    i have formview when with tow required validator and gridview with reqired validator when i click insert on form view it fires the validation on the gridview i want when i click inserton form view just validate the tow validators on the form and doesnt fire the validator on gridview

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  • Spring MVC simple case

    - by coure2011
    Trying to understand a sample code... I am returning a modelview successfully from my AthuenticationController like this modelAndView = new ModelAndView("redirect:/home/"); .... return modelAndView; and my browser url is changed to /home/ but its showing a 404 page I have a HomePageController and it has methods @RequestMapping(method = RequestMethod.GET) public String loadHome and @RequestMapping(method = RequestMethod.GET, value = "/main") public String reloadHome but System.out.println("Message") is not executing in any of the above methods. When authenticated I want to load a home.jsp page? It is in WEB-INF/jsp/...

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  • Spring Web Flow

    - by cedric
    hi. I am really having a problem about what to use as an alternative for web flow. I have read that not all functionalities should be handled by web flow. Only those which needs complex xstate management. For those easy stuffs like just login, editing or deleting records what will I use as an alternative for web flow?

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  • Show a form from another form

    - by M.H
    Hi,When I want to Display a from (C#) by clicking a button in another form I usually create an object form the form that I want to show and use the show method : Form2 f2 = new Form2(); f2.Show(); or I work with the "Owner" : Form2 tempForm = new Form2(); this.AddOwnedForm(tempForm); tempForm.Show(); the tow ways generate the same results but what is the best and what are the differences between them?

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  • Wordpress Contact Form 7 in a hidden div.

    - by Luke
    Hi there, I'm using Contact Form 7 on Wordpress. I have it set up so the upload appears in the 3rd of three divs that hide and show depending on a clicked link. Everything is fine except when I click submit it hides the uploads div and shows the first div again. The form is submitting fine and you see a message that it has sent if you navigate back to the uploads section. Is there any way to keep the div you're in open and keep the rest hidden on submit? This is the code i'm using for hiding and showing. I'm sure it's not perfect but it works. // My Files function basic_myfiles($atts, $content = null) { return '' . $content . ''; } add_shortcode("myfiles", "basic_myfiles"); // Sound Library function basic_soundlib($atts, $content = null) { return '' . $content . ''; } add_shortcode("soundlib", "basic_soundlib"); // Uploads function basic_uploads($atts, $content = null) { return '' . $content . do_shortcode( '[contact-form 4 "Client Upload Form"]' ) . ''; } add_shortcode("uploads", "basic_uploads"); Thanks

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  • Spring annotation-based container configuration context:include & exclude filters

    - by lisak
    Hey, first off I point to the similar question. I spent more than an hour to set this up, but PathMatchingResourcePatternResolver still scans everything. I have one common.xml (that is imported from specific.xml) and a specific.xml bean definition file. The context is loaded from specific.xml. In common.xml there is this element: <context:component-scan base-package="cz.instance.transl"> <context:exclude-filter type="aspectj" expression="cz.instance.transl.model..* &amp;&amp; cz.instance.transl.service..* &amp;&amp; cz.instance.transl.hooks..*"/> </context:component-scan> Where classes in packages like cz.instance.transl.service.* should not be subject of scanning, but everything else in here cz.instance.transl.* should be scanned through. But PathMatchingResourcePatternResolver marks everything as matching resources. It is the same with regex. BTW: in xml style configuration, one can have many components that share a common.xml beans via "import resource" when loading context. How this is done when Annotation-based container configuration is used ?

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  • Spring MVC 3.1 How to access HttpSession in Custom Authentication Provider (which implements AuthenticationProvider)

    - by user1506231
    My application calls a web service during the Authentication process (as shown in code below). How can I save some information in HttpSession during this process? This information like customer-account-number will be used in various other places in the application after the user is logged in. Is it possible to pass HttpSession parameter to the MyServiceManager's static login method? public class MyAuthenticationManager implements AuthenticationProvider { @Override public boolean supports(Class<? extends Object> authentication) { return authentication.equals(UsernamePasswordAuthenticationToken.class); } @Override public Authentication authenticate(Authentication authentication) { //MyServiceManager.login - makes a call to web service if(MyServiceManager.login(authentication.getName(), authentication.getCredentials().toString(), XXX_HTTP_SESSION_XXX)) { List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority> (); authorities.add(new GrantedAuthorityImpl("ROLE_USER")); authorities.add(new GrantedAuthorityImpl("ROLE_SUPERVISOR")); return new UsernamePasswordAuthenticationToken(authentication.getName(), authentication.getCredentials(),authorities); } else { return null; } } }

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  • Spring Controller's URL request mapping not working as expected

    - by Atharva
    I have created a mapping in web.xml something like this: <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/about/*</url-pattern> </servlet-mapping> In my controller I have something like this: import org.springframework.stereotype.Controller; @Controller public class MyController{ @RequestMapping(value="/about/us", method=RequestMethod.GET) public ModelAndView myMethod1(ModelMap model){ //some code return new ModelAndView("aboutus1.jsp",model); } @RequestMapping(value="/about", method=RequestMethod.GET) public ModelAndView myMethod2(ModelMap model){ //some code return new ModelAndView("aboutus2.jsp",model); } } And my dispatcher-servlet.xml has view resolver like: <mvc:annotation-driven/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:viewClass="org.springframework.web.servlet.view.JstlView" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/> To my surprise: request .../about/us is not reaching to myMethod1 in the controller. The browser shows 404 error. I put a logger inside the method but it isn't printing anything, meaning, its not being executed. .../about works fine! What can be the done to make .../about/us request work? Any suggestions?

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  • Spring + hibernate + shared remote tomcat environment setup

    - by hrushi
    I could set up the environment in my local host, But i have no choice like deploying my war file as its shared server, my admin ask me to extract the war file and upload through ftp. Now the problem is I am new to remote server. Please guide me with the remote environment file system and complete directory structure in remote tomcat. And how to use FTP for deployment ? Thanks in advance Hrushi

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  • Mapping restful ajax requests to spring

    - by Diones
    I have this piece of code: @RequestMapping(value = "/test.json", method = RequestMethod.GET) @ResponseStatus(HttpStatus.OK) public @ResponseBody Object[] generateFile(@RequestParam String tipo) { Object[] variaveis = Variavel.getListVariavelByTipo(tipo); return variaveis; } As far as I know it should take a request to test.json?tipo=H and return the JSON representation of Variavel[], however when I make such request I get: HTTP Status 406 - type Status report message descriptionThe resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers () By using the following function I can get the expected json: @RequestMapping(value = "/teste.json") public void testeJson(Model model, @RequestParam String tipo) { model.addAttribute("data", Variavel.getListVariavelByTipo("H")); } What I'm doing wrong?

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  • Is Spring hard compared to Ruby on Rails?

    - by johnny
    If I have no to little experience in either of them, but know enough Java and Ruby to be comfortable, is one framework harder to learn than the other? Is one easier to use for the beginner on these? I know it is hard to answer. Just looking for general thoughts on it.

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  • Spring singleton lifecycle

    - by EugeneP
    Reading this When a bean is a singleton, only one shared instance of the bean will be managed and all requests for beans with an id or ids matching that bean definition will result in that one specific bean instance being returned. Will be managed... What does that mean? If there's only one object, than any modification to this object will result in that every another attempt to get this bean will return a modified instance??

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  • Spring Web: Correct way to have a single default ViewResolver

    - by wuntee
    What is the best way to have every request be sent to a single ViewResolver - specifically in this case a JsonView? Was thinking this: <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.json.MappingJacksonJsonView" /> <property name="prefix" value="*" /> </bean> but, is there something better/easier?

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  • JSF form does not get submitted when form is disabled by JavaScript

    - by Steve
    This is the submit button: <h:commandButton actionListener="#{regBean.findReg}" action="#{regBean.navigate}" value="Search" /> This is the form: <h:form onsubmit="this.disabled=true;busyProcess();return true;"> If the submit button is pressed, the page shows a "busy" icon until request is processed. The problem is, the form is never submitted and the request never reaches the backend. However, if I instead take out the "disabled" call like so: <h:form onsubmit="busyProcess();return true;"> Then everything works. Any ideas?

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  • Disable redirect in fb:request-form Send/Cancel button

    - by Colossal Paul
    How do I disable the redirect in Facebook's invite form? <fb:serverfbml style="width: 600px; height: 650px;"> <script type="text/fbml"> <fb:request-form action="index.php" method="POST" invite="true" type="MyApp" content="Please have a look. <fb:req-choice url='http://apps.facebook.com/myapp/' label='View Now!' />"> <div class="clearfix" style="padding-bottom: 10px;"> <fb:multi-friend-selector condensed="true" style="width: 600px;" /> </div> <fb:request-form-submit /> </fb:request-form> After selecting friends, you will see the final Send Invite dialog with your template. After you click send or cancel, how do i disable the redirect by just closing the the dialog? Thanks.

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