ajax做json拼接

来源：互联网发布：fast paxos java示例编辑：程序博客网时间：2024/05/27 16:41

[
    {
        "id": "100000",
        "menu": [
            {
                "text": "部门管理",
                "items": [
                    {
                        "id": "100006",
                        "text": "部门增加",
                        "href": "http://localhost:8080/RBAC/Department/Department_add.jsp"
                    },
                    {
                        "id": "100007",
                        "text": "部门维护",
                        "href": "http://localhost:8080/RBAC/selectDepartment"
                    }
                ]
            }
        ]
    },
    {
        "id": "100001",
        "menu": [
            {
                "text": "用户管理",
                "items": [
                    {
                        "id": "100008",
                        "text": "用户增加",
                        "href": "http://localhost:8080/RBAC/getDeptNameList"
                    },
                    {
                        "id": "100009",
                        "text": "用户维护",
                        "href": "http://localhost:8080/RBAC/selectUser"
                    }
                ]
            }
        ]
    },
    {
        "id": "100002",
        "menu": [
            {
                "text": "角色管理",
                "items": [
                    {
                        "id": "100010",
                        "text": "角色增加",
                        "href": "http://localhost:8080/RBAC/Role/role_add.jsp"
                    },
                    {
                        "id": "100011",
                        "text": "角色维护",
                        "href": "http://localhost:8080/RBAC/selectRole"
                    }
                ]
            }
        ]
    },
    {
        "id": "100003",
        "menu": [
            {
                "text": "菜单管理",
                "items": [
                    {
                        "id": "100012",
                        "text": "菜单增加",
                        "href": "http://localhost:8080/RBAC/selectFatherMenu"
                    },
                    {
                        "id": "100013",
                        "text": "菜单维护",
                        "href": "http://localhost:8080/RBAC/selectMenu"
                    }
                ]
            }
        ]
    },
    {
        "id": "100004",
        "menu": [
            {
                "text": "角色人员管理",
                "items": [
                    {
                        "id": "100014",
                        "text": "角色人员维护",
                        "href": "http://localhost:8080/RBAC/selectRoleUser"
                    }
                ]
            }
        ]
    },
    {
        "id": "100005",
        "menu": [
            {
                "text": "权限管理",
                "items": [
                    {
                        "id": "100015",
                        "text": "用户权限设置",
                        "href": "http://localhost:8080/RBAC/selectUserMenu"
                    },
                    {
                        "id": "100016",
                        "text": "部门权限设置",
                        "href": "http://localhost:8080/RBAC/selectDeptMenu"
                    },
                    {
                        "id": "100017",
                        "text": "角色权限设置",
                        "href": "http://localhost:8080/RBAC/selectRoleMenu"
                    }
                ]
            }
        ]
    }

]

在action

//处理一个ajax请求
   public void child(){
       String st = ser.child();

       //异步传值
       HttpServletResponse res=ServletActionContext.getResponse();
       res.setContentType("text/html;charset=utf-8");
       try {
           PrintWriter pw=res.getWriter();
           pw.print(st);
           pw.close();
       } catch (IOException e) {
           e.printStackTrace();
       }
   }

对这个文档做拼接在业务处理层

public String child() {
       List<TtMenu> menulist=dao.find("from TtMenu where fatherMenuId=1");
       JSONArray all = new JSONArray();
       JSONObject first_menu = new JSONObject();

       for(TtMenu mn:menulist){//一级菜单

           first_menu.put("id", mn.getMenuId());

           //拼一级菜单
           JSONArray first_arr = new JSONArray();
           //只放一个json（一级菜单）对象，包含二级菜单

           JSONObject first= new JSONObject();
           first.put("text", mn.getMenuName());

           JSONArray second_arr = new JSONArray();
           //拼二级菜单
           JSONObject second= new JSONObject();

           for(TtMenu m:mn.getChildMenu()){//二级菜单
               second.put("id",m.getMenuId() );
               second.put("text", m.getMenuName());
               second.put("href", m.getMenuValue());

               second_arr.add(second);
           }

           first.put("items", second_arr);
           first_arr.add(first);
           first_menu.put("menu", first_arr);
           all.add(first_menu);
       }

       return all.toString();

   }

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