1. AdminUsers Module – Changesin Web-Layerto use Spring MVC
Overview
In this module following functions willbe coveredinREL.
1. Show Users List
2. Add New User
3. Edit Existing User
4. Save Changespost Editing
5. Delete Existing User
Module functions in Sample Application:
The users module inthe sample applicationwill support the followingfunctions exposedbythe listed URLs.
# URL Method Description
1
/admin/users/view/{id}
/admin/users/view
GET
Gets the list of users inthis
REL application
2 /admin/users/new GET
Shows the UI to adda new
user.
3 /admin/users/edit/{id} GET
Show the UI to edit the
info of existing user.
4 /admin/users/delete/{id} POST Deletes the existing user.
5 /admin/users/save POST
Saves the informationof
new andexisting user.
Controller – UserController.java
Create a newfile 'web/ UserController.java'. This class handlesthe "/adminUsers/*" requests.
package com.pearson.rel.webapp.controller;
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 com.pearson.rel.model.User;
@Controller
@RequestMapping(value="/adminUsers")
public classUsersController {
@RequestMapping(value="/view",method= RequestMethod.GET)
public String view(User user) {
return "userList";
}
@RequestMapping(value="/addNew",method= RequestMethod.GET)
public String addNew(Modelmodel,User user) {
return "userForm";
}
@RequestMapping(value="/edit/{userName}",method= RequestMethod.GET)
public String edit(Model model,User user){
model.addAttribute("userForm",new User());
return "userForm";
}

2. @RequestMapping(value="/delete",method = RequestMethod.POST)
public String delete(Model model,User user){
return "userList";
}
@RequestMapping(value="/save",method= RequestMethod.POST)
public String save(Modelmodel,User user) {
return "userForm";
}
}
Models & Services
(1) Model: Due to simplicityof requests, noadditional model needs to be added.
(2) Service: No changesat the servicesare required.
Subtasks
(1) Validations :
a. To check User withthe same name alreadyexists
b. To validate the “password” and“confirm password” fields match.
c. Validate mandatoryfields.
New functionality - Bulk Import from Spreadsheet
Overview:
Bulk Import from SpreadSheet: New linkwill be providedadjacent to “Addnew User” onview page. Using this link ,user can
import multiple admin users from XLS. After performing the validations, users would be addedto the database.
Steps Involved:
1. After clickingon link “BulkImport from SpreadSheet ” a newpage willget openas follows:
2. On UploadSpreadsheet : Uploaded data from XLS will be shown inJquerydata-gridas shownbelow:

3. 3. After all the validations are validated, onclick of “Save” buttonnew adminusers will be savedin “appUser” table in
Relational database.
4. After saving indatabase, updatedstatus of the user will be shownas follows:
Module Functions:
# URL Method Description
1 /adminUsers/downloadTemplate GET
Downloads a newXLS
template to enter the user
records
2 /adminUsers/uploadSpreadSheet POST
Uploads the XLS file and
show the records inData
Grid on UI.
3 /adminUsers/saveAllUsers POST
Saves allthe validated
users in datatbase.
4 /adminUsers/editSheetUser POST
Edits the selecteduser in
the data grid.
5 /adminUsers/deleteSheetUser POST
Deletes the selecteduser
from the grid
Controller Changes – UserController.java
New functions will be added in UserController to achieve the above functionality is as follows:
@RequestMapping(value="/downloadTemplate",method= RequestMethod.GET)
public String downloadTemplate(Model model,User user) {
return "downloadTemplate";
}
@RequestMapping(value="/uploadSpreadSheet",method= RequestMethod.POST)
public String uploadSpreadSheet(Model model,User user) {
return "jsonView";
}
@RequestMapping(value="/saveAllUsers",method= RequestMethod.POST)
public String saveAllUsers(Model model,User user) {

4. return "successUsers";
}
@RequestMapping(value="/editSheetUser",method= RequestMethod.POST)
public String editSheetUser(Model model,User user) {
return "jsonView";
}
@RequestMapping(value="/deleteSheetUser",method= RequestMethod.POST)
public String deleteSheetUser(Model model,User user) {
return "jsonView";
}
Models & Services
(1) Model: No additionalmodel needs to be added.
(2) Service: Service that requires modification: service/UserManager.java.
(3) Helper: A new Helper class that needs to be added:web/BulkImportUserHelper”.