Javaee--bos Logistics Project 12: Roles, user management, using Ehcache cache, System menu according to the login display

1 Learn Plan

1. Role Management

N Add Role Features

N Role Paging Query

2. User Management

N Add User Features

N User Paged Query

3. Modify The authorization method in Realm (query database)

4. Use ehcache to cache permission data

N Add ehcache dependency

n Configuring the Cache Manager

5. Thesystem menu is displayed according to the login.

n Adjust page Ajax request Address

N Server-side Query menu data

2 Role Management2.1 Add a role feature2.1.1 Page Adjustments

first of all , to improve the pages/admin/function_add.jsp add permissions to the page, the drop-down box changed to Combotree

The format of his data is:

Code main Modifications Dao 's findAll method:

Function.hbm.xml modifying children for immediate loading

Added in Function.java , the successful implementation of the dropdown box modification

Then proceed to the next adjustment, open page:web-inf/pages/admin/role_add.jsp

First Step: Modify the page and use Ztree to check the effect (checkbox)

Step Two: Modify the request URL address of the Ajax method

Step three: Bind events for Save button, submit form

2.1.2 Service-Side implementation

Creating role Management Action,Service,Dao

Service Code:

Configure Struts.xml

2.2 Role Paging Query

Modify the URL address of the DataGrid in the role.jsp page

in the a paging Query method is provided in Roleaction:

3 User Management3.1 Add User

page: web-inf/pages/admin/userinfo.jsp

3.1.1 Page Adjustments

First step: Send Ajax requests, get role data, dynamically present role data in callback functions, show as checkbox

<tr> <td> Select role:</td> <td colspan= "3" id= "roletd" > <script type= "Text/javascript" >                               $(function(){                                   //after the page is loaded, send an AJAX request to get all the role data$.post (' Roleaction_listajax.action ',function(data) {//in the Ajax callback function, parse the JSON data and display it as a checkbox                                        for(vari=0;i<data.length;i++){                                           varID =data[i].id; varName =Data[i].name; $("#roleTD"). Append (' <input id= ' ' +id+ ' "type=" checkbox "Name=" Roleids "value=" ' +id+ ' "><label for=" ' +id+ ' " > ' +name+ ' </label> ');                               }                                   });                           }); </script> </td> </tr>

the Label's for property allows you to click on the text to trigger The Click event of the checkbox.

Step two: in Roleaction provides the Listajax method, queries all roles, returns JSON data

Step three: Bind events for Save button, submit form

3.1.2 Service-Side implementation

in the The add method is provided in useraction to save a user

Service Code:

Configure Struts.xml

3.2 Paging Query

First step: Modify the URL address of the DataGrid in the userlist.jsp page

in the data table, modify field, change from phone to role

Step two: in Paging Query method available in useraction

step three: in The getrolenames method is provided in the User class , and thegetbirthdaystring method

4 Modify The authorization method in Realm (query database)

in the Functiondao extension method, Query the corresponding permissions according to the user ID

5 using ehcache to cache permission data

Ehcache is a dedicated cache plugin that can cache Java objects and improve system performance.

L Ehcache provides the jar Package:

First step: introduce ehcache dependencies in the Pom.xml file

Step Two: Provide the ehcache configuration file in the project

Step Three: Configure the Cache Manager object in the spring configuration file and inject it to the Security Manager Object

6 The system menu is displayed dynamically based on the login.

First step: Modify The request address of the Ajax method in the index.jsp page

Step two: in The findmenu method is provided in the Action

step three: in methods available in Service

Dao Code:

Note: You need to The getpid method is provided in the Function class (for displaying the parent directory)

     Public String getpid () {        ifnull)            return "0";         return Parentfunction.getid ();    }

Javaee--bos Logistics Project 12: Roles, user management, using Ehcache cache, System menu according to the login display