Spring retrieving one user by id -

-

i have on page list of users retrieved database. along users associated child objects, on same page instead of list of users, 1 user logged in application. restricted viewing of user details , should able view own specific details , child objects.

dao - method getting users

public list<module> getsettermodules(integer userid){        session session = sessionfactory.getcurrentsession();        query query = session.createquery("from userentity u                u.userid="+userid);        userentity userentity = (userentity) query.uniqueresult();        return  new arraylist<module>(userentity.getsmodule());

the dto retrieving list of users , associated objects retrieve 1 user (that authenticated) id , list of objects linked them. i'm attempting implementing this:

@requestmapping(value = "/main", method = requestmethod.get)  public string getrecords(@requestparam("userid") integer userid, modelmap           model) {      //retrieve 1 user      userentity user = userservice.getuserbyid(userid);      userentitydto userdto = new userentitydto();        userentitydto dto = new userentitydto();      dto.setuserid(user.getuserid());      dto.setsmodule(moduleservice.getsettermodules(user.getuserid()));      dto.setcmodule(moduleservice.getcheckermodules(user.getuserid()));       userdto.add(dto);      }      model.addattribute("user", userdto);         return "/main";}

i insight how proceed here or there simpler way of getting user.

new dao

@transactional public userentity getuserbyid(integer userid) {     session session = sessionfactory.getcurrentsession();      userentity userentity = (userentity) session.get(userentity.class, userid);     userentity.getsmodule();              return userentity;}

controller

   @requestmapping(value = "/main/user/testing", method = requestmethod.get)     public string getrecords(@requestparam("userid") integer userid, modelmap           model) {      userentity userentity = userservice.getuserbyid(userid);       model.addattribute("user", userentity);       return "/main/user/testing";  }

error 

     http status 400 - required integer parameter 'userid' not present

edit 2: above implementation url returning error above tried hardcode id url: 

   <c:url value="/main/user/testing/?userid=2" var="url"/><a href="<c:out      value='${url}'/>">test</a>

and changed controller to:

  @requestmapping(value = "/main/user/testing{userid}", method = requestmethod.get)     public string getrecords(@requestparam("userid") integer userid, modelmap           model) {      userentity userentity = userservice.getuserbyid(userid);       model.addattribute("user", userentity);       return "/main/user/testing";  }

but error now:

    javax.servlet.jsp.jsptagexception: don't know how iterate on supplied "items" in &lt;foreach&gt; org.apache.taglibs.standard.tag.common.core.foreachsupport.toforeachiterator(foreachsupport.java:274) org.apache.taglibs.standard.tag.common.core.foreachsupport.supportedtypeforeachiterator(foreachsupport.java:238) org.apache.taglibs.standard.tag.common.core.foreachsupport.prepare(foreachsupport.java:155) javax.servlet.jsp.jstl.core.looptagsupport.dostarttag(looptagsupport.java:256) org.apache.jsp.web_002dinf.views.main.user.testing_jsp._jspx_meth_c_005fforeach_005f0(testing_jsp.java:181) org.apache.jsp.web_002dinf.views.main.user.testing_jsp._jspservice(testing_jsp.java:125) org.apache.jasper.runtime.httpjspbase.service(httpjspbase.java:70) javax.servlet.http.httpservlet.service(httpservlet.java:728) org.apache.jasper.servlet.jspservletwrapper.service(jspservletwrapper.java:432) org.apache.jasper.servlet.jspservlet.servicejspfile(jspservlet.java:390) org.apache.jasper.servlet.jspservlet.service(jspservlet.java:334) javax.servlet.http.httpservlet.service(httpservlet.java:728) org.springframework.web.servlet.view.internalresourceview.rendermergedoutputmodel(internalresourceview.java:238) org.springframework.web.servlet.view.abstractview.render(abstractview.java:264) org.springframework.web.servlet.dispatcherservlet.render(dispatcherservlet.java:1208) org.springframework.web.servlet.dispatcherservlet.processdispatchresult(dispatcherservlet.java:992) org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:939) org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:856) org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:915) org.springframework.web.servlet.frameworkservlet.doget(frameworkservlet.java:811) javax.servlet.http.httpservlet.service(httpservlet.java:621) org.springframework.web.servlet.frameworkservlet.service(frameworkservlet.java:796) javax.servlet.http.httpservlet.service(httpservlet.java:728) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:54) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.www.basicauthenticationfilter.dofilter(basicauthenticationfilter.java:150) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:183) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:105) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.access.channel.channelprocessingfilter.dofilter(channelprocessingfilter.java:144) org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:346) org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:259)

this jsp want get:

   <table>         <tr>                     <th>user id</th>                     <th>module code</th>                     <th>module name</th>               </tr>          <c:foreach items="${setter}" var="obj" >         <c:foreach items="${obj.smodule}" var="module" >               <tr>                 <td><c:out value="${obj.userid}" escapexml="true" /></td>                   <td><c:out value="${module.modulecode}" escapexml="true" /></td>                 <td><c:out value="${module.modulename}" escapexml="true" /></td>                </tr>             </c:foreach>         </c:foreach>     </table>

i know how user , associated modules , without having hard code userid url. great.

checkout get method on session (documentation)

session.get(userentity.class, userid);

Comments

Post a Comment

Popular posts from this blog

c++ - Function signature as a function template parameter -

-
i'd use function signature template argument. works great classes, when try same trick function templates, msvc throws error: error c2768: 'func' : illegal use of explicit template arguments here's code: template <typename signature> void func(); template <typename r, typename a1> void func<r(a1)>(); what should make work? you cannot partially specialize function template, not supported language. can create partially specialized class template static member function, , possibly trampoline function instantiate class template , invoke static function. something this: namespace detail { template<typename signature> struct helper; template<typename r, typename a1> struct helper<r(a1)> { static void call() { // stuff r , a1... } }; } template<typename signature> void func() { detail::helper<signature>::call(); }
Read more

algorithm - What are some ways to combine a number of (potentially incompatible) sorted sub-sets of a total set into a (partial) ordering of the total set? -

-
i have sorting problem i'm pretty sure doesn't have canonical "answer" - has number of different approaches, each pros/cons. i'm interested in hearing different approaches. suppose bunch of people {p_i | i=1,...,m} ranking favorite ice cream flavors. in total there n different flavors, single person p_i ranks n_i << n flavors or familiar with. i'm interested in combining these sub-rankings plausible overall ranking of n flavors. for concrete situation: m , n both 1000 (by coincidence), , each n_i 20 . can assume there's enough overlap in flavors people rank such no flavor "isolated". again, i'm interested in hearing different ways approach this, if there isn't single clear answer. thanks! one way approach problem construct directed cyclic graph representing of constraints on ordering of elements. nodes in graph represent different elements compared , have edge first node second node if had ranked first e...
Read more

How to call a javascript function after the page loads with a chrome extension? -

-
there's function on page want call after loads. not own page, can't insert html it. can please provide specific examples how chrome extension or greasemonkey? (function submitaction() ). both chrome extensions , greasemonkey offer ways specify when script inject if executed. in chrome extension, you set in manifest : "content_scripts": [ { "run_at" : "document_idle", in greasemonkey compatible userscripts, set in metadata // @run-at document-end in both cases, have add script if want ensure resources loaded when function executed : document.addeventlistener('load', submitaction);
Read more