2019独角兽企业重金招聘Python工程师标准>>>

jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
    String path = request.getContextPath();
%>



    
    后台管理首页

    
    
    





    banner


    copyRight


    


    
        
            欢迎来到后台管理系统！

代码

实体类

package com.laolang.gongda.easyuistudy.domain;

import javax.persistence.*;


@Entity
@Table(name = "sys_menu")
public class SysMenu {

    @Id
    @GeneratedValue
    private Integer id;

    @Column(unique = true)
    private String text;

    private String state;

    @Column(name = "icon_cls")
    private String iconCls;

    private String url;

    private Integer nid;

    @Version
    private Integer version;
}

数据库操作

SysMenuRepository

package com.laolang.gongda.easyuistudy.repository;

import com.laolang.gongda.easyuistudy.domain.SysMenu;
import org.springframework.data.jpa.repository.JpaRepository;

import java.util.List;


public interface SysMenuRepository extends JpaRepository {

    public List findByNid( Integer nId );
}

SysMenuService

package com.laolang.gongda.easyuistudy.service;

import com.laolang.gongda.easyuistudy.domain.SysMenu;
import com.laolang.gongda.easyuistudy.repository.SysMenuRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
public class SysMenuService {

    @Autowired
    private SysMenuRepository sysMenuRepository;

    @Transactional(readOnly = true)
    public List findByNid( Integer nId ){
        return sysMenuRepository.findByNid(nId);
    }
}

controller

package com.laolang.gongda.easyuistudy.webadmin;


import com.laolang.gongda.easyuistudy.domain.SysMenu;
import com.laolang.gongda.easyuistudy.service.SysMenuService;
import com.laolang.gongda.easyuistudy.utils.JsonUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

@Controller
@RequestMapping(value="/admin/sysmenu")
public class SysMenuAdminController {


    @Autowired
    private SysMenuService sysMenuService;

    @RequestMapping(value="list",method = RequestMethod.POST,produces = "text/html")
    public String list( @RequestParam(value="id",required = false) Integer nId, HttpServletRequest request, HttpServletResponse response,Model model ) throws IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");
        response.setHeader("Cache-Control", "no-cache");
        PrintWriter out = response.getWriter();
        String jsonStr = null;
        Integer nid = nId == null ? 0 : nId;
        List menus = sysMenuService.findByNid(nid);

        jsonStr = JsonUtils.toJson(menus);
        out.print(jsonStr);
        out.flush();
        out.close();
        return null;


    }
}

运行效果

关于 icon

来源

推荐一个icon图标的网站：

http://www.iconfont.cn/

这个网站提供了很多图标，且不用登陆，免费使用，提供多种尺寸，文档完整

easyui 添加 icon

从 iconfont 下载图标的时候要下载16X16的，然后修改名字，话到 jquery-easyui-1.4.5\themes\icons 中，再修改 jquery-easyui-1.4.5\themes\icon.css 文件，就可以使用了

/* mine */
.icon-home{
    background:url('icons/home.png') no-repeat center center;
}

完整代码

http://git.oschina.net/laolang2016/easyui-study

121 项目 010 笔记向 easyui-study tree菜单

jsp

代码

实体类