SSH框架主要的类

最新推荐文章于 2021-10-26 19:36:58 发布

原创最新推荐文章于 2021-10-26 19:36:58 发布 · 527 阅读

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#框架 #ssh #hashmap #exception #session #object

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本文介绍了一个基于Struts2框架的自定义基类Action及权限拦截器的实现方式，通过继承ActionSupport并实现多个接口来获取请求、响应等对象，并详细展示了参数处理流程与权限验证逻辑。

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import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.apache.struts2.interceptor.ParameterAware;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.interceptor.SessionAware;

import com.opensymphony.xwork2.ActionSupport;

public class BaseAction extends ActionSupport implements ServletRequestAware,
        ServletResponseAware ,
        ParameterAware,
        SessionAware{

    public Logger logger = Logger.getLogger(BaseAction.class);

    public HttpServletRequest request;

    public HttpServletResponse response;

    public Map params;

    public Map session;

    //实现接口ServletRequestAware的方法
    public void setServletRequest(HttpServletRequest request) {
        // TODO Auto-generated method stub
        this.request = request;
    }

    //实现接口ServletResponseAware的方法
    public void setServletResponse(HttpServletResponse response) {
        // TODO Auto-generated method stub
        this.response = response;
    }

    //实现接口ParameterAware的方法
    public void setParameters(Map params) {
        // TODO Auto-generated method stub
        this.params = convertForParam(params);
    }

    //实现接口SessionAware的方法
    public void setSession(Map session) {
        // TODO Auto-generated method stub
        this.session = session;
    }

    public Map convertForParam(Map map){
        HashMap hashmap = new HashMap(0);
        //对接收到的参数map进行迭代，将数据取出来重新放到新定义的map中，对map进行转换
        Entry entry;
        Object[] value;
        for(Iterator itr = map.entrySet().iterator();itr.hasNext();hashmap.put(entry.getKey(), value.length==1 ? value[0]:(Object)value)) {
            entry = (Entry) itr.next();
            value = (Object[]) entry.getValue();
        }

        return hashmap;
    }

}

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.log4j.Logger;
import org.apache.struts2.StrutsStatics;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

public class AuthorityInterceptor extends AbstractInterceptor {
    private static final long serialVersionUID = 2329563960222482824L;
    private static Logger logger = Logger.getLogger(AuthorityInterceptor.class);

    @Override
    public String intercept(ActionInvocation invocation) throws Exception {

        try {
            ActionContext ctx = invocation.getInvocationContext();
            HttpServletRequest request =
                (HttpServletRequest) ctx.get(StrutsStatics.HTTP_REQUEST);
            String uri = request.getRequestURI();

            if (uri.contains("Login") || uri.contains("AdminLogin")) {
                return invocation.invoke();
            }

            if (request.getSession()!= null) {
                HttpSession session = request.getSession();
                if(session.getAttribute("xySysUser")!=null){
                    return invocation.invoke();
                }
            }

            return Action.LOGIN;
        } catch (Exception e) {
            logger.error(null, e);
            throw e;
        }

    }

}