uminterceptor.java

Struts+Spring开发

package org.ssi.interceptor;

import java.util.Map;

import org.apache.log4j.Logger;
import org.apache.struts2.ServletActionContext;
import org.ssi.dto.Person;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;

public class UMInterceptor implements Interceptor {
	private static Logger logger = Logger.getLogger(UMInterceptor.class);

	public void destroy() {
		// TODO Auto-generated method stub

	}

	public void init() {
		// TODO Auto-generated method stub

	}

public String intercept(ActionInvocation invocation) throws Exception {
		String result = null;

		Map session = invocation.getInvocationContext().getSession();
		if (session.get("pa_username") == null
				|| "".equals(session.get("pa_username")))
			logger.info("***********用户未登录");
		else
			logger.info("***********用户"+session.get("pa_username")+"已登录");
		result = invocation.invoke();
		ActionContext actionContext = invocation.getInvocationContext();
		Map params=(Map)actionContext.get(ServletActionContext.PARAMETERS);
		Person person = (Person) params.get("person");
		logger.info("***********person:" + person);
		return result;
	}}