jdbc - How to edit database table in JSF -

i'm having bean class id,firstname,lastname attributes having public getters , setters, , updateemployee method.

i'm using following jsf page database table values.

when click on update button success page shown values not changing in database. can 1 tell me reason why vales not getting change in database?

thanks in advance.

jsf page:

<h:datatable value="#{tablebean.employeelist}" var="employee" border="1">    <h:column>           <f:facet name="header">first name</f:facet>           <h:inputtext value="#{employee.firstname}" />    </h:column>     <h:column>           <f:facet name="header">last name</f:facet>           <h:inputtext value="#{employee.lastname}" />    </h:column> </h:datatable> <h:commandbutton value = "update" action="#{employee.updateemployee}"/> 

employee.java:

public string updateemployee(){    string query = "update employee set firstname = ?,lastname = ? id = 1";             pstmt = conn.preparestatement(query);    pstmt.setstring(2,this.firstname);    pstmt.setstring(3,this.lastname);     pstmt.executeupdate(); // execute update statement    conn.commit();    committed = true;    return "success.xhtml";    }catch (exception e) {        e.printstacktrace();        return null;    } {       try{          if (!committed) conn.rollback();               pstmt.close();           conn.close();        }catch(exception e){             e.printstacktrace();       }     } 

your values automatically bound if have corresponding properties in backing bean.

you have submit data in order bean values updated. add commandbutton or commandlink in form this:

<h:form>  <h:datatable> ... </h:datatable>  <h:commandbutton value="submit" action="tablebean.actionmethod"> </h:form>