介绍 package org.web;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
与javax . servlet . servletrequest import ;
import javax.servlet.ServletResponse;
import org.dao.BaseHibernateDao;
import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
public class OpenSessionView extends BaseHibernateDao implements Filter {/* *(非,Javadoc)
,* & lt; p>标题:,destroy
,* & lt; p>描述(描述):,& lt;/p>
,* @see javax.servlet.Filter #摧毁()
,*/@Override
public void 破坏(),{//,TODO Auto-generated method 存根
}/* *(非,Javadoc)
,* & lt; p>标题:,doFilter
,* & lt; p>描述(描述):,& lt;/p>
,* @param arg0
,* @param __arg1
,* @param 最长
,* @throws IOException
,* @throws ServletException
,* @see javax.servlet.Filter #的doFilter (javax.servlet.ServletRequest, javax.servlet.ServletResponse,, javax.servlet.FilterChain)
,*/@Override
doFilter (ServletRequest public void ; arg0, ServletResponse __arg1、
FilterChain 最长),throws IOException, ServletException {
Session Session =,空;
Transaction tx =,空;
try {
时间=session getSession ();
时间=tx session.beginTransaction ();
arg2.doFilter (arg0, __arg1);
tx.commit ();
}
catch (Exception e), {
e.printStackTrace ();
tx.rollback ();
}
最后{
closeSession ();
}
}/* *(非,Javadoc)
,* & lt; p>标题:,init
,* & lt; p>描述(描述):,& lt;/p>
,* @param arg0
,* @throws ServletException
,* @see javax.servlet.Filter # init (javax.servlet.FilterConfig)
,*/@Override
public void init (FilterConfig arg0), throws ServletException {//,TODO Auto-generated method 存根
}
} package org.web;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.Service.IVoteTreeService;
import org.Service.impl.VoteTreeServiceImpl;
import com.alibaba.fastjson.JSON;
import com.opensymphony.xwork2.ActionSupport;
public class TreeAction extends ActionSupport {
private JSONArray treejson;
时间=private IVoteTreeService voteService new VoteTreeServiceImpl ();
public String getTree () {
时间=treejson voteService.getTreeJson ();
return 成功;
}
public JSONArray getTreejson (), {
return treejson;
}
public void setTreejson (JSONArray treejson), {
时间=this.treejson treejson;
}
}
这篇文章将为大家详细讲解有关java实现遍历树形菜单的方法有哪些,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。
具体如下。
<强> OpenSessionView实现:
<>强TreeAction实现
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