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A little assistant for teenagers' physiological health knowledge based on wechat applet (free source code + project introduction + operation introduction + operation screenshot + Thesis)

2022-07-01 05:34:00 【Code garden of Azhou】

Technology Architecture

Back end ：JDK1.8+SingBoot+SpringMVC

front end ：WXML+WXSS +css +js

database ：MySQL

Function module

The front desk user :

The user login
Personal center
Psychological assessment
Customer service
Encyclopedia of adolescent physical health

Backstage Administrator ：

Registration Management
Psychological evaluation management
User management
Knowledge management of adolescent health encyclopedia

Code display ：

wx.getUserProfile({
			desc: ' It is used to improve the membership information ',
			success: (res) => {
				var sessionKey = app.globalData.sessionKey;
				console.log("userInfo", res.userInfo)
				app.globalData.userInfo = res.userInfo
				this.setData({
					'userInfo': res.userInfo,
					'hiddenName': true
				})
				wx.request({
					url: 'http://localhost:8080/wx/getUserInfo',
					header: {
						"accept": "*/*",
						'Content-Type': 'application/x-www-form-urlencoded',
					},
					data: {
						'encryptedData': res.encryptedData,
						'iv': res.iv,
						'sessionKey': sessionKey,
					},
					method: 'POST',
					success(res) {
						console.log("userInfo:", res)

					}
				})
			}

package com.azhou.code.aop;

import com.azhou.code.annotations.Limit;
import com.azhou.code.common.exception.MyException;
import com.google.common.collect.Maps;
import com.google.common.util.concurrent.RateLimiter;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.util.Map;

/**
 * @description:  Current limiting aop
 * @author: azhou
 * @Create: 2022-05-29 12:40
 */

@Slf4j
@Aspect
@Component
public class LimitAop {

    private final Map<String, RateLimiter> limiterMap = Maps.newConcurrentMap();

    @Around("@annotation(com.azhou.code.annotations.Limit)")
    public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        Method method = methodSignature.getMethod();
        //  take limit Annotations 
        Limit limit = method.getAnnotation(Limit.class);
        if (limit != null) {
            // key effect ： Different interfaces , Different flow control 
            String key = limit.key();
            RateLimiter rateLimiter = null;
            //  Verify whether the cache hits key
            if (!limiterMap.containsKey(key)) {
                //  Create token bucket 
                rateLimiter = RateLimiter.create(limit.permitsPerSecond());
                limiterMap.put(key, rateLimiter);
                log.debug(" New token bucket ={}, Capacity ={}", key, limit.permitsPerSecond());
            }
            rateLimiter = limiterMap.get(key);
            //  Take the token 
            boolean acquire = rateLimiter.tryAcquire(limit.timeout(), limit.timeunit());
            //  Can't get orders , Directly return the exception prompt 
            if (!acquire) {
                log.warn(" Token bucket ={}, Failed to get token ", key);
                throw new MyException(limit.msg());
            }
        }
        return joinPoint.proceed();
    }


}