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System introduction:
In the Internet age, as the development of network systems continues to mature and improve, people’s lives have also undergone great changes. While people are pursuing a higher material life, they are also thinking about how to improve their spiritual connotation. To be promoted, and reading is a very important way for people to obtain spiritual enjoyment. In order to meet the requirement that people can read books anytime and anywhere as long as there is an Internet connection, a 4S store reservation maintenance system was developed.
This article mainly describes the specific development process of the 4S store reservation maintenance system. Based on the SSM framework, Vue technology and MYSQL database are used to make the 4S store reservation maintenance system have good stability and security. This design focuses on elaborating the 4S store reservation maintenance system from the aspects of system overview, system analysis, system design, database design, system testing and summary. Users can query their favorite information through the 4S store reservation maintenance system.
The 4S store reservation maintenance system is not only capable of stable operation, fast and convenient operation, simple and clear interface, but also has complete functions and strong practicality.
The system structure design is like a tree structure. A trunk has many branches. Large tasks are equivalent to the trunk, and small tasks are equivalent to branches. Only after the requirements analysis information is clear can we ensure that each small task can achieve its goals. For the preliminary The designed system is then continuously optimized, and finally a concrete and realistic system structure is obtained.
The administrator function module and the user function module are the two major parts of the 4S store reservation maintenance system. The system structure is shown in Figure 4-2.
When the program is handed over to the user for use, the operation flow chart of the program needs to be provided, so that the user can easily understand the specific working steps of the program. Nowadays, the operation process of the program has a general standard, that is, first submit the login data through the login page, After the program is verified correctly, the user can operate the corresponding function on the program function operation area page.
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Program operation flow chart
Function screenshot:
5.1 User information management
Figure 5.1 shows the user information management page. The functions provided to administrators on this page are: user information query management, user information can be deleted, user information can be modified, and user information can be added.
The conditions for fuzzy query on user names were also carried out
Figure 5.1 User information management page
5.2 Vehicle Information Management
Figure 5.2 shows the vehicle information management page. The functions provided to administrators on this page are: view published vehicle information data, modify vehicle information, invalidate vehicle information and delete it, and also blur the name of vehicle information. Query vehicle information, information type query and other conditions.
Figure 5.2 Vehicle information management page
5.3 Appointment maintenance management
Figure 5.3 shows the scheduled maintenance management page. The functions provided to administrators on this page include: querying conditions based on scheduled maintenance, and adding, modifying, querying, etc. for scheduled maintenance.
Figure 5.3 Scheduled maintenance management page
5.1 Announcement Information Management
Figure 5.4 shows the announcement information management page. The functions provided to administrators on this page include: adding, modifying, querying operations, etc. based on announcement information.
Figure 5.4 Announcement information management page
Code implementation:
/**
* Login related
*/
@RequestMapping("users")
@RestController
public class UserController{
@Autowired
private UserService userService;
@Autowired
private TokenService tokenService;
/**
* Log in
*/
@IgnoreAuth
@PostMapping(value = "/login")
public R login(String username, String password, String role, HttpServletRequest request) {
UserEntity user = userService.selectOne(new EntityWrapper<UserEntity>().eq("username", username));
if(user != null){
if(!user.getRole().equals(role)){
return R.error("Permissions are abnormal");
}
if(user==null || !user.getPassword().equals(password)) {
return R.error("Account or password is incorrect");
}
String token = tokenService.generateToken(user.getId(),username, "users", user.getRole());
return R.ok().put("token", token);
}else{
return R.error("Account or password or permissions are incorrect");
}
}
/**
* register
*/
@IgnoreAuth
@PostMapping(value = "/register")
public R register(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
if(userService.selectOne(new EntityWrapper<UserEntity>().eq("username", user.getUsername())) !=null) {
return R.error("User already exists");
}
userService.insert(user);
return R.ok();
}
/**
* quit
*/
@GetMapping(value = "logout")
public R logout(HttpServletRequest request) {
request.getSession().invalidate();
return R.ok("Exit successfully");
}
/**
* reset Password
*/
@IgnoreAuth
@RequestMapping(value = "/resetPass")
public R resetPass(String username, HttpServletRequest request){
UserEntity user = userService.selectOne(new EntityWrapper<UserEntity>().eq("username", username));
if(user==null) {
return R.error("Account does not exist");
}
user.setPassword("123456");
userService.update(user,null);
return R.ok("Password has been reset to: 123456");
}
/**
* list
*/
@RequestMapping("/page")
public R page(@RequestParam Map<String, Object> params,UserEntity user){
EntityWrapper<UserEntity> ew = new EntityWrapper<UserEntity>();
PageUtils page = userService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.allLike(ew, user), params), params));
return R.ok().put("data", page);
}
/**
* information
*/
@RequestMapping("/info/{id}")
public R info(@PathVariable("id") String id){
UserEntity user = userService.selectById(id);
return R.ok().put("data", user);
}
/**
* Get the user's session user information
*/
@RequestMapping("/session")
public R getCurrUser(HttpServletRequest request){
Integer id = (Integer)request.getSession().getAttribute("userId");
UserEntity user = userService.selectById(id);
return R.ok().put("data", user);
}
/**
* save
*/
@PostMapping("/save")
public R save(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
if(userService.selectOne(new EntityWrapper<UserEntity>().eq("username", user.getUsername())) !=null) {
return R.error("User already exists");
}
userService.insert(user);
return R.ok();
}
/**
* Revise
*/
@RequestMapping("/update")
public R update(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
userService.updateById(user);//Update all
return R.ok();
}
/**
* delete
*/
@RequestMapping("/delete")
public R delete(@RequestBody Integer[] ids){
userService.deleteBatchIds(Arrays.asList(ids));
return R.ok();
}
}
Paper reference:
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