spring - Saving an object via getSessionFactory().getCurrentSession().save(item) -

-

even if operation seems extremely used haven't found problem in code. in dao class have:

    public class itemdaoimpl extends hibernatedaosupport implements itemdao {     @transactional     public void additem(item item){         getsessionfactory().getcurrentsession().save(item);     }      @transactional(readonly = true)     public list<item> findallitem(){         return getsessionfactory().getcurrentsession().createquery("from item").list();     }}

findallitem() works well, whereas additem() doesn't. when click button invokes additem() following error thrown:

java.lang.classcastexception: com.z.item.model.item cannot cast java.util.map javax.faces.el.evaluationexception: java.lang.classcastexception: com.z.item.model.item cannot cast java.util.map @ javax.faces.component.methodbindingmethodexpressionadapter.invoke(methodbindingmethodexpressionadapter.java:98) @ com.sun.faces.application.actionlistenerimpl.processaction(actionlistenerimpl.java:98) @ javax.faces.component.uicommand.broadcast(uicommand.java:311) . . .

but haven't specified map use object "item" everywhere. item object passed additem() correct. why exception thrown?

here how configure it:

<hibernate-mapping>     <class entity-name="com.z.item.model.item"         table="item">          <id name="id" type="long">             <column name="id" />             <generator class="identity" />         </id>         <property name="name" type="string">             <column name="itemname" length="45" not-null="true" />         </property>         <property name="amount" type="int">             <column name="amount" not-null="true" />         </property>         <property name="price" type="java.math.bigdecimal">             <column name="price" length="10" not-null="true" />         </property>     </class> </hibernate-mapping>       <tx:annotation-driven  transaction-manager="transactionmanager"/>     <bean id="transactionmanager"       class="org.springframework.jdbc.datasource.datasourcetransactionmanager">     <property name="datasource" ref="datasource"></property>     </bean>     <bean id="itemdao"          class="com.z.item.dao.impl.itemdaoimpl" >         <property name="sessionfactory" ref="sessionfactory"></property>     </bean>       <bean id="sessionfactory"       class="org.springframework.orm.hibernate3.localsessionfactorybean">     <property name="datasource">       <ref bean="datasource"/>     </property>       <property name="hibernateproperties">        <props>          <prop key="hibernate.dialect">org.hibernate.dialect.hsqldialect</prop>          <prop key="hibernate.show_sql">true</prop>        </props>     </property>     <property name="mappingresources">     <list>           <value>com/z/item/hibernate/item.hbm.xml</value>     </list>     </property>    </bean>

i don't think issue caused hibernate. issue may have happened when click button , before reaching additem(). likely, data mapping issue(i assume map data item first when clicking button). try print out item before call additem(), should see above exception not calling additem().


Comments

Post a Comment

Popular posts from this blog

node.js - Mongoose: Cast to ObjectId failed for value on newly created object after setting the value -

-
this question has answer here: what's mongoose error cast objectid failed value xxx @ path “_id”? 7 answers even though has been asked many times because entity has no valid objectid field. i came across situation objectid set value can casted objectid still error. the schema: var serviceschema = parammongoose.schema({ servicename:{ type: parammongoose.schema.types.objectid , ref: 'servicenames',required:true } }); pseudo code: servicefromdb=new service({servicename:'some name'}); servicefromdb.servicename='000000000000000000000001'; servicefromdb.save(function(paramerror,paramdata){ if(paramerror){ console.log('but but...',servicefromdb,paramerror) } }); the output of code is: but but... { servicename: 000000000000000000000001, _id: 55079a90286f49280364f78b } { [casterror: cast objectid faile...
Read more

Simple Angular 2 project fails 'Unexpected reserved word' -

-
i trying create simple angular2 project based on ng2do project. using quickstart , have following code... <script src="js/quickstart/dist/es6-shim.js"></script> .... import {component, template, bootstrap, foreach} 'js/quickstart/angular2/angular2'; this gives me following error... uncaught syntaxerror: unexpected reserved word what missing? don't know if helps have been having issues day realised because starting code script reference <script src="app.js"> </script> instead of using <script> system.import('app'); </script> hope helps using in tsconfig { "version": "1.5.0-beta", "compileroptions": { "target": "es6", "module": "amd", "declaration": false, "noimplicitany": false, "removecomments": true, "nolib": fal...
Read more

php - Get process resource by PID -

-
Image
i want write web ssh console, , found 2 problems. what want do. first want execute start.php file have following code. $process = proc_open('start', array( 0 => array("pipe", "r"), 1 => array("pipe", "w"), 2 => array("pipe", "a") ), $pipes); second want run command.php file run command on created process in start.php file , results it. $pid = 12345; print_r(process_command('ping google.com', $pid)); i want access process ( cmd ) created in past, send command , result. why problem, if can create new process each command.php execution? because new process new session, if login mysql in past command.php execution, in next executions must login mysql again, because new process not remember logged. example on windows. i create new process ( cmd ) in php, current directory c:\webserv\ . i write cd / command, current directory c:\ . this example, dont want c...
Read more