Contact at the end of the article to obtain the source code

Development language: Java

Framework: ssm

JDK version: JDK1.8

Server: tomcat7

Database: mysql 5.7/8.0

Database tool: Navicat11

Development software: eclipse/myeclipse/idea

Maven package: Maven3.3.9

Browser: Google Chrome

Small program framework: uniapp

Small program development software: HBuilder X

Small program running software: WeChat developer

1. Introduction

The social development is changing with each passing day, and the use of computer applications to realize the data management function is considered to be very complete. However, with the advent of the mobile Internet, the processing of information is no longer subject to geographical restrictions, and the processing of information is timely and efficient, which is loved by people. Therefore, major Internet manufacturers are aiming at the trend of mobile Internet to carry out major layouts. After years of great waves, various mobile operating systems have been launched, and the current market share is the highest. WeChat applet.

The development of a new crown pneumonia service reservation WeChat applet has three roles: administrator, hospital, and user. Both the administrator and the hospital can log in on the background webpage. The administrator functions include personal center, hospital management, user management, epidemic prevention measure management, vaccine information management, nucleic acid detection management, vaccine appointment management, nucleic acid appointment management, vaccination information management, and test results Administration, system administration. Hospitals can register and log in, manage vaccine information and nucleic acid testing information, review vaccine appointment information and nucleic acid appointment information, and view vaccination information and test results. Users can register and log in on the WeChat applet, make appointments for vaccine and nucleic acid inspections, and view vaccination information and test results. The COVID-19 service reservation WeChat applet server uses the website background developed in Java to receive and process the json data imported from the WeChat applet. The database uses the MySQL database as data storage. In this way, users can use it conveniently and quickly, and all business processes are performed through the same background, and the background can be deployed according to the amount of concurrency, and hardware and software can be used to cooperate, satisfying the interactive processing of data, and allowing users to store data more efficiently. Safe, more convenient to get data. the

2. System function structure

On the basis of the determined function modules of the administrator, each function of the administrator is designed, and the detailed modules of the administrator function are determined. The drawn administrator function structure is shown in the figure below.

3. Realization of WeChat mini-program functions

3.1 Homepage

After the WeChat applet enters the correct account password, it will enter the homepage display interface by default. The homepage mainly has a carousel image, a search box, and the navigation below as the main components. the

3.2 Vaccine Information

The user can click on the vaccine information to see the vaccine information interface. There is a search bar, and users can click on a certain vaccine information to view it. the

3.3 Vaccine appointment

Users can make vaccine reservations for vaccines. the

3.4 mine

The main thing in my account is to log out. Click the small gear to choose to log out of the current account. You can make an appointment for vaccine and nucleic acid inspections, and you can view vaccination information and test results. the

Fourth, the administrator background function realization

4.1 User Management

Administrators can add, modify, delete, and query user information. the

4.2 Hospital Management

Administrators can add, modify, delete, and query hospital information. the

4.3 Management of epidemic prevention measures

Administrators can add, modify, delete, and query information on epidemic prevention descriptions. the

4.4 Vaccine Information Management

Hospitals can add, modify, delete and query vaccine information. the

5. Part of the core code

5.1 Main code of login system

/**
	 * Log in
	 */
	@IgnoreAuth
	@RequestMapping(value = "/login")
	public R login(String username, String password, String captcha, HttpServletRequest request) {
		YonghuEntity user = yonghuService.selectOne(new EntityWrapper<YonghuEntity>().eq("yonghuzhanghao", username));
		if(user==null || !user.getMima().equals(password)) {
			return R.error("Account or password is incorrect");
		}
		
		String token = tokenService.generateToken(user.getId(), username,"yonghu",  "user" );
		return R.ok().put("token", token);
	}

5.2 Upload file key code

@RequestMapping("/upload")
	public R upload(@RequestParam("file") MultipartFile file,String type) throws Exception {
		if (file.isEmpty()) {
			throw new EIException("Upload file cannot be empty");
		}
		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);
		/**
  		 * If you use idea or eclipse to restart the project and find that the previously uploaded pictures or files are missing, comment out the following line of code
   		 * Please replace the following "D:\springbootq33sd\src\main\resources\static\upload" with the upload path of your local project,
 		 * And the project path cannot have special characters such as Chinese and spaces
 		 */
//		FileUtils.copyFile(dest, new File("D:\springbootq33sd\src\main\resources\static\upload"+"/"+fileName)); /** Please change the path after Remove the //comment at the front of the line **/
		if(StringUtils.isNotBlank(type) && type.equals("1")) {
			ConfigEntity configEntity = configService.selectOne(new EntityWrapper<ConfigEntity>().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);
	}