spring整合struts2 action注入失败 空指针 (2)

package com.action;



import javax.annotation.Resource;



import org.springframework.context.annotation.Scope;

import org.springframework.stereotype.Component;



import com.model.User;

import com.opensymphony.xwork2.ActionSupport;

import com.service.Inter_userMensage;



@Component

@Scope("properties")

public class RegisterDealAction extends ActionSupport {

	private User user;

	private Inter_userMensage userMensager;





	@Override

	public String execute() throws Exception {

		// TODO Auto-generated method stub

		if (userMensager.validate(user)) {

			return SUCCESS;

		} else {

			return ERROR;

		}



	}



	public User getUser() {

		return user;

	}



	public void setUser(User user) {

		this.user = user;

	}



	public Inter_userMensage getUserMensager() {

		return userMensager;

	}



	@Resource(name="userMensage")

	public void setUserMensager(Inter_userMensage userMensager) {



		this.userMensager = userMensager;

		System.out.println(userMensager);

	}

}

HTTP Status 500 -



type Exception report



message



description The server encountered an internal error that prevented it from fulfilling this request.



exception



java.lang.NullPointerException

	com.action.RegisterDealAction.execute(RegisterDealAction.java:22)

	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	java.lang.reflect.Method.invoke(Method.java:601)

	com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)

	com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)

	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)

	com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)

	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

	com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)

	org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)

	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

	com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)

	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

	com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

	com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)