Development language: Java
Java development tool: JDK1.8
Back-end framework: SpringBoot
Front-end: Developed using Vue technology
Database: MySQL5.7 combined with Navicat management tool
Server: Tomcat8.5
Development software: IDEA / Eclipse
Whether Maven project: Yes
Table of contents
1. Project Introduction
2. System functions
3. System project screenshots
3.1 Administrator
3.2Members
3.2 Network management
4. Core code
4.1 Login related
4.2 File upload
4.3 Packaging
1. Project Introduction
The Internet cafe management system uses network communication and computer information storage management, which has advantages that cannot be replaced by traditional methods. For example, the calculation and retrieval speed is extremely fast, the reliability is extremely high, the storage capacity is extremely large, the confidentiality is extremely good, the storage time is extremely long, and the cost is extremely low. In terms of work efficiency, it can be greatly improved, and there will also be good gains when extended to service levels. With the Internet, the management of all aspects of the Internet cafe management system is more scientific and systematic, more standardized and simpler.
2. System functions
This Internet cafe management system mainly includes three functional modules, namely administrator, member and network administrator.
(1) Administrator module: home page, personal center, member management, network management, product type management, product information management, purchased product information management, call network management, computer information management, user onboarding management, user offboarding management.
(2) Membership: homepage, personal center, product information management, purchased product management, call network management, computer information management, user onboarding management, and offboarding management.
(3) Network management: homepage, personal center, product information management, purchased product information management, call network management, computer information management, user login management, user disconnection management.
3. System project screenshots
3.1 Administrator
Administrators can add network management information in network management management and delete operations such as viewing details.
Administrators can add other types of product information to product types or delete product types.
Administrators can add new product information on the product information page and can also perform operations such as deleting and modifying it.
In the purchase information management, the administrator can check which member purchased our products
In computer information management, administrators can view computer information and modify computer information, prices, locations, etc.
3.2Members
When purchasing goods, members can view the product information they purchased and click Pay to pay.
Members can choose how they want to pay.
3.2 Network management
The network administrator has some authority of the administrator to serve users.
4. Core code
4.1 Login related
package com.controller;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.annotation.IgnoreAuth;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.entity.TokenEntity;
import com.entity.UserEntity;
import com.service.TokenService;
import com.service.UserService;
import com.utils.CommonUtil;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.ValidatorUtils;
/**
* 登录相关
*/
@RequestMapping("users")
@RestController
public class UserController{
@Autowired
private UserService userService;
@Autowired
private TokenService tokenService;
/**
* 登录
*/
@IgnoreAuth
@PostMapping(value = "/login")
public R login(String username, String password, String captcha, HttpServletRequest request) {
UserEntity user = userService.selectOne(new EntityWrapper().eq("username", username));
if(user==null || !user.getPassword().equals(password)) {
return R.error("账号或密码不正确");
}
String token = tokenService.generateToken(user.getId(),username, "users", user.getRole());
return R.ok().put("token", token);
}
/**
* 注册
*/
@IgnoreAuth
@PostMapping(value = "/register")
public R register(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
if(userService.selectOne(new EntityWrapper().eq("username", user.getUsername())) !=null) {
return R.error("用户已存在");
}
userService.insert(user);
return R.ok();
}
/**
* 退出
*/
@GetMapping(value = "logout")
public R logout(HttpServletRequest request) {
request.getSession().invalidate();
return R.ok("退出成功");
}
/**
* 密码重置
*/
@IgnoreAuth
@RequestMapping(value = "/resetPass")
public R resetPass(String username, HttpServletRequest request){
UserEntity user = userService.selectOne(new EntityWrapper().eq("username", username));
if(user==null) {
return R.error("账号不存在");
}
user.setPassword("123456");
userService.update(user,null);
return R.ok("密码已重置为：123456");
}
/**
* 列表
*/
@RequestMapping("/page")
public R page(@RequestParam Map params,UserEntity user){
EntityWrapper ew = new EntityWrapper();
PageUtils page = userService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.allLike(ew, user), params), params));
return R.ok().put("data", page);
}
/**
* 列表
*/
@RequestMapping("/list")
public R list( UserEntity user){
EntityWrapper ew = new EntityWrapper();
ew.allEq(MPUtil.allEQMapPre( user, "user"));
return R.ok().put("data", userService.selectListView(ew));
}
/**
* 信息
*/
@RequestMapping("/info/{id}")
public R info(@PathVariable("id") String id){
UserEntity user = userService.selectById(id);
return R.ok().put("data", user);
}
/**
* 获取用户的session用户信息
*/
@RequestMapping("/session")
public R getCurrUser(HttpServletRequest request){
Long id = (Long)request.getSession().getAttribute("userId");
UserEntity user = userService.selectById(id);
return R.ok().put("data", user);
}
/**
* 保存
*/
@PostMapping("/save")
public R save(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
if(userService.selectOne(new EntityWrapper().eq("username", user.getUsername())) !=null) {
return R.error("用户已存在");
}
userService.insert(user);
return R.ok();
}
/**
* 修改
*/
@RequestMapping("/update")
public R update(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
userService.updateById(user);//全部更新
return R.ok();
}
/**
* 删除
*/
@RequestMapping("/delete")
public R delete(@RequestBody Long[] ids){
userService.deleteBatchIds(Arrays.asList(ids));
return R.ok();
}
}
4.2 File upload
package com.controller;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.UUID;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.util.ResourceUtils;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.annotation.IgnoreAuth;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.entity.ConfigEntity;
import com.entity.EIException;
import com.service.ConfigService;
import com.utils.R;
/**
* 上传文件映射表
*/
@RestController
@RequestMapping("file")
@SuppressWarnings({
"unchecked","rawtypes"})
public class FileController{
@Autowired
private ConfigService configService;
/**
* 上传文件
*/
@RequestMapping("/upload")
public R upload(@RequestParam("file") MultipartFile file,String type) throws Exception {
if (file.isEmpty()) {
throw new EIException("上传文件不能为空");
}
String fileExt = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);
File path = new File(ResourceUtils.getURL("classpath:static").getPath());
if(!path.exists()) {
path = new File("");
}
File upload = new File(path.getAbsolutePath(),"/upload/");
if(!upload.exists()) {
upload.mkdirs();
}
String fileName = new Date().getTime()+"."+fileExt;
File dest = new File(upload.getAbsolutePath()+"/"+fileName);
file.transferTo(dest);
FileUtils.copyFile(dest, new File("C:\\Users\\Desktop\\jiadian\\springbootl7own\\src\\main\\resources\\static\\upload"+"/"+fileName));
if(StringUtils.isNotBlank(type) && type.equals("1")) {
ConfigEntity configEntity = configService.selectOne(new EntityWrapper().eq("name", "faceFile"));
if(configEntity==null) {
configEntity = new ConfigEntity();
configEntity.setName("faceFile");
configEntity.setValue(fileName);
} else {
configEntity.setValue(fileName);
}
configService.insertOrUpdate(configEntity);
}
return R.ok().put("file", fileName);
}
/**
* 下载文件
*/
@IgnoreAuth
@RequestMapping("/download")
public ResponseEntity download(@RequestParam String fileName) {
try {
File path = new File(ResourceUtils.getURL("classpath:static").getPath());
if(!path.exists()) {
path = new File("");
}
File upload = new File(path.getAbsolutePath(),"/upload/");
if(!upload.exists()) {
upload.mkdirs();
}
File file = new File(upload.getAbsolutePath()+"/"+fileName);
if(file.exists()){
/*if(!fileService.canRead(file, SessionManager.getSessionUser())){
getResponse().sendError(403);
}*/
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
headers.setContentDispositionFormData("attachment", fileName);
return new ResponseEntity(FileUtils.readFileToByteArray(file),headers, HttpStatus.CREATED);
}
} catch (IOException e) {
e.printStackTrace();
}
return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR);
}
}
4.3 Packaging
package com.utils;
import java.util.HashMap;
import java.util.Map;
/**
* 返回数据
*/
public class R extends HashMap {
private static final long serialVersionUID = 1L;
public R() {
put("code", 0);
}
public static R error() {
return error(500, "未知异常，请联系管理员");
}
public static R error(String msg) {
return error(500, msg);
}
public static R error(int code, String msg) {
R r = new R();
r.put("code", code);
r.put("msg", msg);
return r;
}
public static R ok(String msg) {
R r = new R();
r.put("msg", msg);
return r;
}
public static R ok(Map map) {
R r = new R();
r.putAll(map);
return r;
}
public static R ok() {
return new R();
}
public R put(String key, Object value) {
super.put(key, value);
return this;
}
}