springBoot三分钟轻松撩到redis

背景

最近在工作中接触并简单使用了redis缓存技术，本来以为会很难，至少让你的项目（我使用的是springboot项目）配置并使用起来还是so easy，但是要用好那就要另当别论了。

开发环境参数

intellij+jdk-8+spring-boot-1.5.3（不要忘了本地下载redis-server）

代码

1、创建spring-boot项目（参考：http://blog.csdn.net/xyc_csdn/article/details/67672198），创建项目（项目名称为redis）时记得勾选上web和redis两个依赖项；

2、项目创建完成后，在你的java代码包的根路径下创建包controller，注意controller包和RedisApplication属于同级，然后在controller包下创建类RedisController.java。目录结构如下：

3、进行编码

• RedisApplication.java

package com.xyc.redis;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.nio.charset.Charset;

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

    @Bean
    public JedisConnectionFactory redisConnectionFactory() {
        /**
         * 使用JedisConnectionFactory的默认配置，可根据具体需求调整
         * this.hostName = "localhost";
         * this.port = 6379;
         * this.timeout = 2000;
         * this.usePool = true;
         * this.useSsl = false;
         * this.poolConfig = new JedisPoolConfig();
         * this.dbIndex = 0;
         * this.convertPipelineAndTxResults = true;
         */
        return new JedisConnectionFactory();
    }

    @Bean
    public RedisTemplate redisTemplate() {
        RedisTemplate redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory());
        redisTemplate.setKeySerializer(new StringRedisSerializer(Charset.forName("UTF8")));
        return redisTemplate;
    }
}

• RedisController.java

package com.xyc.redis.controller;

import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

/**
 * Created by xyc on 2017/6/2 0002.
 */
@RestController
@RequestMapping("/redis")
public class RedisController {
     
    @Resource
    private RedisTemplate redisTemplate;
    private static final String KEY = "KEY";

    @RequestMapping("/index")
    public String index() {
        return "hello redis";
    }

    @RequestMapping("/set")
    public String set(@RequestParam String value) {
        this.redisTemplate.opsForValue().set(KEY, value);
        return "set value success";
    }

    @RequestMapping("/get")
    public String get() {
        String value = (String) this.redisTemplate.opsForValue().get(KEY);
        if (value == null) {
            return "get value failed";
        }
        return "the value is " + value;
    }
}

测试

• 首先测试controller是否可以正常访问
  

• 再测试是否可以将值放进redis
  

• 最后测试是否可以将值从redis中取出
  

GitHub

https://github.com/xiayongchao/redis