Spring boot 入门学习5. 使用Redis

pom.xml

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

application.properties

spring.redis.database=0
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=

controller

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

import javax.annotation.Resource;

import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.xundh.demo.model.User;


@RequestMapping("user")
@Controller
public class UserController {

    @Resource
    private RedisTemplate<String,String> redisTemplate;

    @Resource
    private StringRedisTemplate stringRedisTemplate;

    @RequestMapping("/test")
    public String test(){
        redisTemplate.opsForValue().set("name","myvalue");
        String name = (String)redisTemplate.opsForValue().get("name");
        System.out.println(name);
        // 删除 
        redisTemplate.delete(name);

        stringRedisTemplate.opsForValue().set("name", "newvalue");
        name = stringRedisTemplate.opsForValue().get("name");
        System.out.println(name);
        return "/user/test";
    }
}

resources/templates/user/test.html 空页面

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
  <head>
    <title>test.html</title>

    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->

  </head>

  <body>
    This is my HTML page. <br />
  </body>
</html>

运行测试，控制台输出：

myvalue
newvalue

stringRedisTemplate常用操作

stringRedisTemplate.opsForValue().set("test", "100",60*10,TimeUnit.SECONDS);//向redis里存入数据和设置缓存时间  

stringRedisTemplate.boundValueOps("test").increment(-1);//val做-1操作  

stringRedisTemplate.opsForValue().get("test")//根据key获取缓存中的val  

stringRedisTemplate.boundValueOps("test").increment(1);//val +1  

stringRedisTemplate.getExpire("test")//根据key获取过期时间  

stringRedisTemplate.getExpire("test",TimeUnit.SECONDS)//根据key获取过期时间并换算成指定单位  

stringRedisTemplate.delete("test");//根据key删除缓存  

stringRedisTemplate.hasKey("546545");//检查key是否存在，返回boolean值  

stringRedisTemplate.opsForSet().add("red_123", "1","2","3");//向指定key中存放set集合  

stringRedisTemplate.expire("red_123",1000 , TimeUnit.MILLISECONDS);//设置过期时间  

stringRedisTemplate.opsForSet().isMember("red_123", "1")//根据key查看集合中是否存在指定数据  

stringRedisTemplate.opsForSet().members("red_123");//根据key获取set集合

Spring boot 入门学习5. 使用Redis

pom.xml

application.properties

controller

resources/templates/user/test.html 空页面

stringRedisTemplate常用操作

猜你喜欢