spring+srpingmvc+hibernate实现动态ztree生成树状图效果
ztree生成树状图
前台
导入js和css包
下载地址
前端页面 ztree.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" isELIgnored="false" %> <!DOCTYPE html> <HTML> <HEAD> <TITLE>ztree</TITLE> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" href="${pageContext.request.contextPath}/Css/demo.css" type="text/css"> <link rel="stylesheet" href="${pageContext.request.contextPath}/Css/zTreeStyle/zTreeStyle.css" type="text/css"> <script type="text/javascript" src="${pageContext.request.contextPath}/Js/jquery-1.4.4.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/Js/jquery.ztree.core-3.5.js"></script> <SCRIPT type="text/javascript"> //初始化 var setting = { data: { simpleData: { enable: true } }, callback: { beforeClick: beforeClick } }; //数据集 var zNodes =[ //根据这种格式生成树状图 // {id:1, pId:0, name:"河北省"}, // {id:12, pId:1, name:"石家庄"}, // {id:13, pId:1, name:"邢台"}, // {id:14, pId:1, name:"邯郸"}, // {id:2, pId:0, name:"北京市"}, // {id:22, pId:2, name:"海淀区"}, // {id:23, pId:2, name:"朝阳区"}, // {id:24, pId:2, name:"长安区"} ]; //点击后的操作 function beforeClick(treeId, treeNode, clickFlag) { //获取父窗口中id为Text1 var parentControl=parent.document.getElementById("Text1"); //把值设置为treeNode.name; parentControl.value=treeNode.name; } //访问控制层,获取数据。 $(document).ready(function(){ var url="${pageContext.request.contextPath}/menu/findZtree"; $.getJSON(url,{},function(nodes){ //alert(nodes); console.log(JSON.stringify(nodes)); zNodes=nodes; $.fn.zTree.init($("#treeDemo"), setting, zNodes); }) }); </SCRIPT> </HEAD> <BODY> <div class="content_wrap"> <div class="zTreeDemoBackground left"> <ul id="treeDemo" class="ztree"></ul> </div> </div> </BODY> </HTML>
后台
ztree所需实体类
package com.shp.dev.common; public class Ztree { private String id; private String pId; private String name; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getpId() { return pId; } public void setpId(String pId) { this.pId = pId; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Ztree() { } public Ztree(String id, String pId, String name) { this.id = id; this.pId = pId; this.name = name; } @Override public String toString() { return "Ztree{" + "id='" + id + '\'' + ", pId='" + pId + '\'' + ", name='" + name + '\'' + '}'; } }
dao接口
package com.shp.dev.menu.dao; import com.shp.dev.menu.pojo.Menu; import java.util.List; public interface MenuDao { List<Menu> queryAll(); }
dao的实现类
package com.shp.dev.menu.dao; import com.shp.dev.menu.pojo.Menu; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import java.util.List; @Repository("menuDao") public class MenuDaoImpl implements MenuDao{ @Autowired private SessionFactory sessionFactory; @Override public List<Menu> queryAll() { return sessionFactory.getCurrentSession().createQuery("from Menu").list(); } }
业务接口
package com.shp.dev.menu.service; import com.shp.dev.menu.pojo.Menu; import java.util.List; public interface MenuService { List<Menu> queryAll(); }
业务实现层
package com.shp.dev.menu.service; import com.shp.dev.menu.dao.MenuDao; import com.shp.dev.menu.pojo.Menu; import com.shp.dev.role.dao.RoleDao; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List; @Service("menuService") public class MenuServiceImpl implements MenuService{ //@Transactional(readOnly = true)//只读事务 // @Transactional(rollbackFor = Exception.class)//启动事务,所有异常都回滚 @Autowired private MenuDao menuDao; @Override @Transactional(readOnly = true)//只读事务 public List<Menu> queryAll() { return menuDao.queryAll(); } }
控制层
package com.shp.dev.menu.web; import com.shp.dev.common.Ztree; import com.shp.dev.menu.pojo.Menu; import com.shp.dev.menu.service.MenuService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import java.util.ArrayList; import java.util.List; @Controller @RequestMapping("/menu") public class MenuController { @Autowired private MenuService menuService; @RequestMapping("/findZtree") @ResponseBody // 返回json对象 public List<Ztree> findZtree(){ List<Ztree> menus=new ArrayList<Ztree>(); List<Menu> query = menuService.queryAll(); for (Menu m : query) { menus.add(new Ztree(m.getId(),m.getParent_id(),m.getName())); } return menus; } }
总结
以上所述是小编给大家介绍的spring+srpingmvc+hibernate实现动态ztree生成树状图,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对我们网站的支持!
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