Thanks for your reply however I didn't get you point, I have created a
userserviceImp instance in my loginaction.
could you please tell what you mean?
--------------------------------------------------
From: "Tommy Pham" <tommy...@yahoo.com>
Sent: Wednesday, August 19, 2009 4:59 PM
To: "Struts Users Mailing List" <user@struts.apache.org>
Subject: Re: Hibernate3+Spring2.5+Struts2
----- Original Message ----
From: Dave Newton <newton.d...@yahoo.com>
To: Struts Users Mailing List <user@struts.apache.org>
Sent: Wednesday, August 19, 2009 7:18:09 AM
Subject: Re: Hibernate3+Spring2.5+Struts2
<snip>
>>
>> public class LoginAction extends ActionSupport {
>>
>> private UserServiceImp userService;
>> private String message;
>> private String username;
>> private String password;
>> private ResourceBundleMessageSource messageSource;
>>
>> public LoginAction() {
>> }
>>
>> @Override
>> public String execute() throws Exception {
>> User usr = userService.getUser(username);
>> if(usr != null){
>> if(usr.getPassword().equals(password)){
>> message = messageSource.getMessage("loginSuccess",
> null,Locale.CHINA);
>> }else{
>> message = messageSource.getMessage("pswError",
> null,Locale.CHINA);
>> }
>> }else{
>> message = messageSource.getMessage("usrError",
> null,Locale.CHINA);
>> }
>> return SUCCESS;
>> }
>>
>> public void setUserService(UserServiceImp userService) {
>> this.userService = userService;
>> }
>>
>> public String getMessage() {
>> return message;
>> }
>>
>> public void setMessage(String message) {
>> this.message = message;
>> }
>>
>> public String getUsername() {
>> return username;
>> }
>>
>> public void setUsername(String username) {
>> this.username = username;
>> }
>>
>> public String getPassword() {
>> return password;
>> }
>>
>> public void setPassword(String password) {
>> this.password = password;
>> }
>>
>> public void setMessageSource(ResourceBundleMessageSource
>> messageSource)
> {
>> this.messageSource = messageSource;
>> }
>>
>> }
>>
<snip>
Your UserServiceImp userService was instantiated but never initialized in
your LoginAction class. Hence the NPE. When you to execute a method that
does not a reference to real object, you'll get NPE. You might want to
review your java :)
Best regards,
Tommy
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