Springboot框架整合添加redis缓存功能

2024-04-02 19:04:59 616人浏览安东尼

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摘要

目录一：安装Redis二：添加Redis依赖三：添加Redis配置信息四：创建RedisConfigurer五：创建Redis常用方法六：接口测试Hello大家好，本章我们添加red

一：安装Redis

因本人电脑是windows系统，从https://GitHub.com/ServiceStack/redis-windows下载了兼容windows系统的redis

下载后直接解压到自定义目录，运行cmd命令，进入到这个文件夹，在这个文件夹下运行下面命令，启动redis服务器

redis-server redis.windows.conf

运行下面命令进行测试：redis-cli

二：添加Redis依赖


<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-redis</artifactId>
   <version>1.4.5.RELEASE</version>
</dependency>

然后鼠标右键选择Maven→Reimport进行依赖下载

三：添加Redis配置信息

在application.properties中添加

spring.redis.host=127.0.0.1

spring.redis.port=6379

spring.redis.timeout=0

spring.redis.passWord=

四：创建RedisConfigurer


package com.example.demo.core.configurer;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.cache.annotation.CachinGConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import redis.clients.jedis.JedisPoolConfig;


@Configuration
@EnableCaching   //开启缓存
public class RedisConfigurer extends CachingConfigurerSupport {

    @Bean
    @ConfigurationProperties(prefix="spring.redis")
    public JedisPoolConfig getRedisConfig(){
        JedisPoolConfig config = new JedisPoolConfig();
        return config;
    }

    @Bean
    @ConfigurationProperties(prefix="spring.redis")
    public JedisConnectionFactory getConnectionFactory(){
        JedisConnectionFactory factory = new JedisConnectionFactory();
        JedisPoolConfig config = getRedisConfig();
        factory.setPoolConfig(config);
        return factory;
    }


    @Bean
    public RedisTemplate<?, ?> getRedisTemplate(){
        RedisTemplate<?,?> template = new StringRedisTemplate(getConnectionFactory());
        return template;
    }
}

五：创建Redis常用方法

RedisService


package com.example.demo.service;

import java.util.List;


public interface RedisService {

    
    boolean set(String key, String value);

    
    String get(String key);

    
    boolean expire(String key, long expire);

    
    <T> boolean setList(String key, List<T> list);

    
    <T> List<T> getList(String key, Class<T> clz);

    
    long lpush(String key, Object obj);

    
    long rpush(String key, Object obj);

    
    String lpop(String key);

    
    long del(final String key);
}

RedisServiceImpl


package com.example.demo.service.impl;

import com.alibaba.fastJSON.jsON;
import com.example.demo.service.RedisService;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;


@Service
public class RedisServiceImpl implements RedisService {

    @Resource
    private RedisTemplate<String, ?> redisTemplate;

    @Override
    public boolean set(final String key, final String value) {
        boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
            @Override
            public Boolean doInRedis(RedisConnection connection) throws DataAccessException {
                RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
                connection.set(serializer.serialize(key), serializer.serialize(value));
                return true;
            }
        });
        return result;
    }

    @Override
    public String get(final String key){
        String result = redisTemplate.execute(new RedisCallback<String>() {
            @Override
            public String doInRedis(RedisConnection connection) throws DataAccessException {
                RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
                byte[] value =  connection.get(serializer.serialize(key));
                return serializer.deserialize(value);
            }
        });
        return result;
    }

    @Override
    public long del(final String key){
        long result = redisTemplate.execute(new RedisCallback<Long>() {
            @Override
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
                long value =  connection.del(serializer.serialize(key));
                return value;
            }
        });
        return result;
    }

    @Override
    public boolean expire(final String key, long expire) {
        return redisTemplate.expire(key, expire, TimeUnit.SECONDS);
    }

    @Override
    public <T> boolean setList(String key, List<T> list) {
        String value = JSON.toJSONString(list);
        return set(key,value);
    }

    @Override
    public <T> List<T> getList(String key,Class<T> clz) {
        String json = get(key);
        if(json!=null){
            List<T> list = JSON.parseArray(json, clz);
            return list;
        }
        return null;
    }

    @Override
    public long lpush(final String key, Object obj) {
        final String value = JSON.toJSONString(obj);
        long result = redisTemplate.execute(new RedisCallback<Long>() {
            @Override
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
                long count = connection.lPush(serializer.serialize(key), serializer.serialize(value));
                return count;
            }
        });
        return result;
    }

    @Override
    public long rpush(final String key, Object obj) {
        final String value = JSON.toJSONString(obj);
        long result = redisTemplate.execute(new RedisCallback<Long>() {
            @Override
            public Long doInRedis(RedisConnection connection) throws DataAccessException {
                RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
                long count = connection.rPush(serializer.serialize(key), serializer.serialize(value));
                return count;
            }
        });
        return result;
    }

    @Override
    public String lpop(final String key) {
        String result = redisTemplate.execute(new RedisCallback<String>() {
            @Override
            public String doInRedis(RedisConnection connection) throws DataAccessException {
                RedisSerializer<String> serializer = redisTemplate.getStringSerializer();
                byte[] res =  connection.lPop(serializer.serialize(key));
                return serializer.deserialize(res);
            }
        });
        return result;
    }


}

六：接口测试

创建RedisController


package com.example.demo.controller;

import com.example.demo.core.ret.RetResponse;
import com.example.demo.core.ret.RetResult;
import com.example.demo.service.RedisService;
import org.springframework.WEB.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;


@RestController
@RequestMapping("redis")
public class RedisController {

    @Resource
    private RedisService redisService;

    @PostMapping("/setRedis")
    public RetResult<String> setRedis(String name) {
        redisService.set("name",name);
        return RetResponse.makeOKRsp(name);
    }

    @PostMapping("/getRedis")
    public RetResult<String> getRedis() {
        String name = redisService.get("name");
        return RetResponse.makeOKRsp(name);
    }


}

输入Http://localhost:8080/redis/setRedis

输入http://localhost:8080/redis/getRedis

项目地址

码云地址：https://gitee.com/beany/mySpringBoot

GitHub地址：https://github.com/MyBeany/mySpringBoot

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