如何获取struts2中的值，并可在其他页面中获取

在相应的action中的方法里利用ActionContext.getContext().getSession().put(key,value)

可以将action中的属性值存入。

在其他java页面或jsp页面中利用ActionContext.getContext().getSession().get(key)即可获取

举个例子：

package action;

import Dao.StuDaoImpl;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.SessionAware;
import org.apache.struts2.util.ServletContextAware;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;

/**
 * Created by Administrator on 2018/5/31.
 */
public class DLAction extends ActionSupport {


    private String id;
    private String kouling;
    private boolean FLAG = false;

    public boolean isFLAG() {
        return FLAG;
    }

    public void setFLAG(boolean FLAG) {
        this.FLAG = FLAG;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getKouling() {
        return kouling;
    }

    public void setKouling(String kouling) {
        this.kouling = kouling;
    }


    public String execute(){
//        request.setAttribute(",id", getId());
//        session.put("id", id);
//        application.setAttribute("id", getId());
        ActionContext.getContext().getSession().put("sid", getId());
        System.out.println("gagaag"+ActionContext.getContext().getSession().get("sid"));
        System.out.println(getId());

        StuDaoImpl stuDao = new StuDaoImpl();
        FLAG = stuDao.queryById(getId(), kouling);
        System.out.println(id);
        if (FLAG) {
            return "success";
        } else {
            return "error";
        }
    }


}