Spring Boot 学习笔记--整合Redis

1.新建Spring Boot项目

添加spring-boot-starter-data-redis依赖

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

本文会根据StringRedisTemplate、RedisTemplate这两个模板来介绍，其中StringRedisTemplate继承自RedisTemplate，只能操作键值都是String类型的数据。在实际开发中建议使用RedisTemplate<K,V>。

查询源码可知RedisTemplate默认使用JdkSerializationRedisSerializer序列化，而StringRedisTemplate则使用StringRedisSerializer。

2.配置redis

在application.properties中配置如下：

 ########################################################
 ###Redis (RedisConfiguration)
 ########################################################
 spring.redis.database=1
 spring.redis.host=127.0.0.1
 spring.redis.port=6379
 spring.redis.password=
 spring.redis.pool.max-idle=8
 spring.redis.pool.min-idle=0
 spring.redis.pool.max-active=8
 spring.redis.pool.max-wait=-1
 spring.redis.timeout=5000

3.编写代码

　　1.创建model

 package com.haq.entity;

 import java.io.Serializable;

 /**
  * Created by on 2017/2/24.
  */
 public class User implements Serializable {

     private static final long serialVersionUId = 1L;

     private String id;
     private String name;

     public User(){
         super();
     }

     public String getId() {
         return id;
     }

     public void setId(String id) {
         this.id = id;
     }

     public String getName() {
         return name;
     }

     public void setName(String name) {
         this.name = name;
     }

     @Override
     public String toString() {
         return "User{" +
                 "id='" + id + '\'' +
                 ", name='" + name + '\'' +
                 '}';
     }
 }

　　2.创建RedisService

 package com.haq.common.redis;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.data.redis.core.ValueOperations;
 import org.springframework.stereotype.Service;

 import javax.annotation.Resource;

 /**
  * Created by on 2017/3/1.
  */
 @Service
 public class RedisService {

     @Autowired
     StringRedisTemplate stringRedisTemplate;

     @Resource(name = "stringRedisTemplate")
     ValueOperations<String, String> valOpsStr;

     @Autowired
     RedisTemplate<Object, Object> redisTemplate;

     @Resource(name = "redisTemplate")
     ValueOperations<Object, Object> valOpsObj;

     /**
      * 根据指定key获取String
      * @param key
      * @return
      */
     public String getStr(String key){
         return valOpsStr.get(key);
     }

     /**
      * 设置Str缓存
      * @param key
      * @param val
      */
     public void setStr(String key, String val){
         valOpsStr.set(key,val);
     }

     /**
      * 删除指定key
      * @param key
      */
     public void del(String key){
         stringRedisTemplate.delete(key);
     }

     /**
      * 根据指定o获取Object
      * @param o
      * @return
      */
     public Object getObj(Object o){
         return valOpsObj.get(o);
     }

     /**
      * 设置obj缓存
      * @param o1
      * @param o2
      */
     public void setObj(Object o1, Object o2){
         valOpsObj.set(o1, o2);
     }

     /**
      * 删除Obj缓存
      * @param o
      */
     public void delObj(Object o){
         redisTemplate.delete(o);
     }

 }

　　3.创建RedisController

 package com.haq.web;

 import com.haq.common.redis.RedisService;
 import com.haq.entity.User;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;

 /**
  * Created by on 2017/3/1.
  */
 @RestController
 @RequestMapping("/redis")
 public class RedisController {

     @Autowired
     RedisService redisService;

     /**
      * 设置Str缓存
      * @param key
      * @param val
      * @return
      */
     @RequestMapping(value = "setStr")
     public String setStr(String key, String val){
         try {
             redisService.setStr(key, val);
             return "success";
         } catch (Exception e){
             e.printStackTrace();
             return "error";
         }
     }

     /**
      * 根据key查询Str缓存
      * @param key
      * @return
      */
     @RequestMapping(value = "getStr")
     public String getStr(String key){
         return redisService.getStr(key);
     }

     /**
      * 根据key产出Str缓存
      * @param key
      * @return
      */
     @RequestMapping(value = "delStr")
     public String delStr(String key){
         try {
             redisService.del(key);
             return "success";
         } catch (Exception e){
             return "error";
         }
     }

     /**
      * 设置obj缓存
      * @param key
      * @param user
      * @return
      */
     @RequestMapping(value = "setObj")
     public String setObj(String key, User user){
         try {
             redisService.setObj(key, user);
             return "success";
         } catch (Exception e){
             e.printStackTrace();
             return "error";
         }
     }

     /**
      * 获取obj缓存
      * @param key
      * @return
      */
     @RequestMapping(value = "getObj")
     public Object getObj(String key){
         return redisService.getObj(key);
     }

     /**
      * 删除obj缓存
      * @param key
      * @return
      */
     @RequestMapping(value = "delObj")
     public Object delObj(String key){
         try {
             redisService.delObj(key);
             return "success";
         } catch (Exception e){
             e.printStackTrace();
             return "error";
         }
     }

 }

4.运行测试

1.StringRedisTemplate

http://127.0.0.1:8080/redis/setStr?key=aa&val=name

http://127.0.0.1:8080/redis/getStr?key=aa

http://127.0.0.1:8080/redis/delStr?key=aa

2.RedisTemplate

http://127.0.0.1:8080/redis/setObj?key=aa&id=1&name=test

http://127.0.0.1:8080/redis/getObj?key=aa

http://127.0.0.1:8080/redis/delObj?key=aa

以上地址都能通过测试，在这里就不一一截图了

后记

可以直接使用redistemplate来保存string类型，不过使用redis client看起来就不太直观，因为JdkSerializationRedisSerializer是使用二进制形式存储数据。

最后希望大家有问题能多多指教，O(∩_∩)O谢谢