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README
Apache-2.0

🐶背景:

  • 我们在写web项目的时候, > - 当大量的请求进来会导致我们数据库压力过大,
  • 所以我们需要加入缓存来减轻数据库的压力,但是现在市面上的很多缓存框架配置太复杂,
  • 所以该框架只需要一个@RedisCache注解就可以实现redis的缓存功能

在这里插入图片描述

所以该框架就叫simple-cache :简单的缓存

🐭介绍:

simple-cache 1.x 是使用redis作为数据库缓存系统,使用自定义注解配合Spring的Aop功能实现方法的缓存,使用restful风格支持get请求,根据请求的参数和key来分类唯一的请求key

🐹代码托管

Gitee

🐰安装

simple-cache 1.x 版本基于 JDK11,所以安装集成 simple-cache 1.x 要求如下:

  • JDK 11+
  • Maven or Gradle

Maven:

<dependency>
            <groupId>io.gitee.antopen</groupId>
            <artifactId>simple-cache</artifactId>
            <version>最新版本</version>
</dependency>

最新版本

🐺快速开始

快速开始实例项目

初始化工程

创建一个空的 Spring Boot 工程

 	<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.6</version>
        <relativePath/>
    </parent>

添加依赖

引入 spring-boot-starterspring-boot-starter-testsimple-cachespring-boot-starter-web 依赖:

 	<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>io.gitee.antopen</groupId>
            <artifactId>simple-cache</artifactId>
            <version>1.0.1</version>
        </dependency>

    </dependencies>

🐸配置

application.properties 配置文件中添加 redis 的相关配置:

server.port=8773

spring.redis.host=127.0.0.1
spring.redis.database=0
spring.redis.port=6379

在 Spring Boot 启动类中添加 @ComponentScan注解,扫描 com.masiyi本项目(例如:com.example)文件夹:

package com.example.springbootdemo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;

@SpringBootApplication
@ComponentScan({"com.masiyi","com.example"})
public class SpringbootdemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootdemoApplication.class, args);
    }

}

🐯编码

编写controller类 Test.java

package com.example.springbootdemo.controller;

import com.example.springbootdemo.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Description TODO
 * @Author masiyi
 * @Date 2022/12/21
 **/
@RestController
public class Test {

    @Autowired
    private TestService testService;

    /**
     * 不走缓存
     * @return string
     */
    @GetMapping("/testnocache")
    public String testnocache() {
        return testService.testnocache();
    }

    @GetMapping("/test")
    /**
     * 走缓存
     * @return string
     */
    public String test() {
        return testService.test();
    }
    
    /**
     * 缓存带参数方法
     * @return string
     */
    @GetMapping("/testParams")
    public Object testParams(@RequestParam String name,@RequestParam String sex) {
        return testService.testParams(name,sex);
    }


}

一共有三个方法,不走缓存方法走缓存方法缓存带参数方法

创建对应的service类

package com.example.springbootdemo.service;

import com.alibaba.fastjson.JSONObject;
import com.masiyi.simplecache.annotation.RedisCache;
import com.masiyi.simplecache.util.RedisUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Random;
import java.util.UUID;

/**
 * @Description TODO
 * @Author masiyi
 * @Date 2022/12/21
 **/
@Service
public class TestService {

    @Autowired
    RedisUtils redisUtils;

    @RedisCache(key = "test")
    public String test() {
        return UUID.randomUUID().toString();
    }

    public String testnocache() {
     	return UUID.randomUUID().toString();
    }

    @RedisCache(key = "testParams",expire = 100)
    public Object testParams(String name, String sex) {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put(name, UUID.randomUUID());
        jsonObject.put(sex, new Random().nextInt(2));
        return jsonObject;
    }

}

启动项目访问三个接口

http://localhost:8773/test

在这里插入图片描述 访问两次返回结果都是一样的

在这里插入图片描述 因为走了缓存

http://localhost:8773/testnocache

在这里插入图片描述 两次结果不一样

在这里插入图片描述

因为没有走缓存

http://localhost:8773/testParams?name=王富贵&sex=男

带参数访问

在这里插入图片描述

如果参数不相同,返回结果不相同,因为缓存的key不同

在这里插入图片描述 如果参数相同,返回结果则相同,因为缓存的key相同

在这里插入图片描述

🐨注解

本文将介绍 simple-cache 注解包相关类详解(更多详细描述可点击查看源码注释)

注解类包源码:👉 simple-cache-annotation

属性 类型 必须指定 默认值 描述
key string "" 缓存的key,可以自定义
expire long 86400秒(一天) 缓存的时间,可以自定义
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简介

自定义注解实现简单的缓存 展开 收起
Java
Apache-2.0
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