末尾获取源码
开发语言:nodejs
框架:Express
数据库:MySQL5.7数据库工具:Navicat 11
开发软件:Hbuilder / VS code
浏览器:edge / 谷歌
目录
疫情大数据展示与政策查询系统利用网络沟通、计算机信息存储管理,有着与传统的方式所无法替代的优点。比如计算检索速度特别快、可靠性特别高、存储容量特别大、保密性特别好、可保存时间特别长、成本特别低等。在工作效率上,能够得到极大地提高,延伸至服务水平也会有好的收获。
本疫情大数据展示与政策查询系统主要包括两大功能模块,即用户功能模块和管理员功能模块、用户模块。
(1)管理员模块:系统中的核心用户是管理员,管理员登录后,通过管理员来管理后台系统。主要功能有:首页、个人中心、用户管理、求助信息管理、捐赠信息管理、疫情信息管理、系统管理。
(2)用户:首页、个人中心、求助信息管理、捐赠信息管理、疫情信息管理。
-
- 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();
- }
- }
- 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<byte[]> 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<byte[]>(FileUtils.readFileToByteArray(file),headers, HttpStatus.CREATED);
- }
- } catch (IOException e) {
- e.printStackTrace();
- }
- return new ResponseEntity<byte[]>(HttpStatus.INTERNAL_SERVER_ERROR);
- }
-
- }
- 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;
- }
- }