java - How to access DAO from Webservice using JAX-WS -

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just started using jax-ws. created service class , dao class. service running fine gives nullpointerexeption b'coz can't locate dao; trying call dao service class :

package com.nmmc.works.service.impl; @webservice(servicename="myservice") public class securityserviceimpl extends genericserviceimpl implements isecurityservice {        private isecuritydao securitydao;  ....getter setter methods....  @webmethod     public integer getbidacceptanceidforsdpayment(integer tmastno)     {            internalresultsresponse<object> response = getsecuritydao().getmymethod(tendermastno);         if(response != null && response.getresultslist().size() > 0){             return integer.parseint(response.getfirstresult().tostring());           }else{             return -1;         }      }

and sun-jaxws.xml.....

<b> <?xml version="1.0" encoding="utf-8"?>     <endpoints version="2.0" xmlns="http://java.sun.com/xml/ns/jax-ws/ri/runtime">       <endpoint            implementation="com.nmmc.works.service.impl.securitydepositserviceimpl"            name="myservices"            url-pattern="mypath/securityserviceimpl"           />     </endpoints></b>

in web.xml....

<b><listener>       <listener-class>com.sun.xml.ws.transport.http.servlet.wsservletcontextlistener</listener-class>     </listener>      <servlet>         <servlet-name>webservices</servlet-name>         <servlet-class>com.sun.xml.ws.transport.http.servlet.wsservlet</servlet-class>         <load-on-startup>2</load-on-startup>     </servlet>      <servlet-mapping>         <servlet-name>webservices</servlet-name>         <url-pattern>/ws/*</url-pattern>     </servlet-mapping></b>

your securityserviceimpl doesn't have dao in when run it. you'll have ensure dao created , injected into/obtained it.


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