java实现遍历树形菜单两种实现代码分享

文本主要向大家分享了java实现遍历树形菜单的实例代码，具体如下。

opensessionview实现：

package org.web;
import java.io.ioexception;
import javax.servlet.filter;
import javax.servlet.filterchain;
import javax.servlet.filterconfig;
import javax.servlet.servletexception;
import javax.servlet.servletrequest;
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)
	 * <p>title: destroy</p>
	 * <p>description(描述): </p>
	 * @see javax.servlet.filter#destroy()
	 */
	@override
		public void destroy() {
		// todo auto-generated method stub
	}
	/**(非 javadoc)
	 * <p>title: dofilter</p>
	 * <p>description(描述): </p>
	 * @param arg0
	 * @param arg1
	 * @param arg2
	 * @throws ioexception
	 * @throws servletexception
	 * @see javax.servlet.filter#dofilter(javax.servlet.servletrequest, javax.servlet.servletresponse, javax.servlet.filterchain)
	 */
	@override
		public void dofilter(servletrequest arg0, servletresponse arg1,
				filterchain arg2) throws ioexception, servletexception {
		session session = null;
		transaction tx = null;
		try {
			session = getsession();
			tx = session.begintransaction();
			arg2.dofilter(arg0, arg1);
			tx.commit();
		}
		catch (exception e) {
			e.printstacktrace();
			tx.rollback();
		}
		finally{
			closesession();
		}
	}
	/**(非 javadoc)
	 * <p>title: init</p>
	 * <p>description(描述): </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 stub
	}
}

treeaction实现

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;
	private ivotetreeservice voteservice = new votetreeserviceimpl();
	public string gettree(){
		treejson = voteservice.gettreejson();
		return success;
	}
	public jsonarray gettreejson() {
		return treejson;
	}
	public void settreejson(jsonarray treejson) {
		this.treejson = treejson;
	}
}

总结

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