SpringBoot2.x整合redis实战讲解
SpringBoot2.x整合redis实战讲解
简介：使用springboot-starter整合reids实战
1、官网：https://docs.spring.io/spring-boot/docs/2.1.0.BUILD-SNAPSHOT/reference/htmlsingle/#boot-features-redis
集群文档：https://docs.spring.io/spring-data/data-redis/docs/current/reference/html/#cluster
2、springboot整合redis相关依赖引入
3、相关配置文件配置
#=========redis基础配置=========
spring.redis.database=0
spring.redis.host=127.0.0.1
spring.redis.port=6390
# 连接超时时间 单位 ms（毫秒）
spring.redis.timeout=3000
#=========redis线程池设置=========
# 连接池中的最大空闲连接，默认值也是8。
spring.redis.pool.max-idle=200
#连接池中的最小空闲连接，默认值也是0。
spring.redis.pool.min-idle=200
# 如果赋值为-1，则表示不限制；pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。
spring.redis.pool.max-active=2000
# 等待可用连接的最大时间，单位毫秒，默认值为-1，表示永不超时
spring.redis.pool.max-wait=1000
4、常见redistemplate种类讲解和缓存实操(使用自动注入)
1、注入模板
@Autowired
private StirngRedisTemplate strTplRedis
2、类型String，List,Hash,Set,ZSet
对应的方法分别是opsForValue()、opsForList()、opsForHash()、opsForSet()、opsForZSet()
package net.leon.base_project.controller;
import net.leon.base_project.domain.JsonData;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/api/v1/redis")
public class RdisTestController {
@Autowired
private StringRedisTemplate redisTpl; //jdbcTemplate
@GetMapping(value="add")
public Object add(){
//opsForValue : Returns the operations performed on simple values (or Strings in Redis terminology).
redisTpl.opsForValue().set("name", "leon2018");
return JsonData.buildSuccess();
}
@GetMapping(value="get")
public Object get(){
String value = redisTpl.opsForValue().get("name");
return JsonData.buildSuccess(value);
}
}
Redis
Redis is a cache, message broker, and richly-featured key-value store. Spring Boot offers basic auto-configuration for the Lettuce and Jedis client libraries and the abstractions on top of them provided by Spring Data Redis.
There is a spring-boot-starter-data-redis “Starter” for collecting the dependencies in a convenient way. By default, it uses Lettuce. That starter handles both traditional and reactive applications.
![[Tip]](http://img.e-com-net.com/image/info8/674cefb2752f49ef874c9e578a01910b.jpg){kind=small} |
| we also provide a |
Connecting to Redis
You can inject an auto-configured RedisConnectionFactory, StringRedisTemplate, or vanilla RedisTemplate instance as you would any other Spring Bean. By default, the instance tries to connect to a Redis server at localhost:6379. The following listing shows an example of such a bean:
@Component
public class MyBean {
private StringRedisTemplate template;
@Autowired
public MyBean(StringRedisTemplate template) {
this.template = template;
}
// ...
} |
| You can also register an arbitrary number of beans that implement |
If you add your own @Bean of any of the auto-configured types, it replaces the default (except in the case of RedisTemplate, when the exclusion is based on the bean name, redisTemplate, not its type). By default, if commons-pool2 is on the classpath, you get a pooled connection factory.
Maven configuration
Add the Maven dependency:
org.springframework.data
spring-data-redis
${version}.RELEASE
If you’d rather like the latest snapshots of the upcoming major version, use our Maven snapshot repository and declare the appropriate dependency version.
package net.leon.base_project.domain;
import java.io.Serializable;
/**
* 功能描述：响应结果类
*/
public class JsonData implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private Integer code; // 状态码 0 表示成功，1表示处理中，-1表示失败
private Object data; // 数据
private String msg;// 描述
public JsonData() {
}
public JsonData(Integer code, Object data, String msg) {
this.code = code;
this.data = data;
this.msg = msg;
}
// 成功，传入数据
public static JsonData buildSuccess() {
return new JsonData(0, null, null);
}
// 成功，传入数据
public static JsonData buildSuccess(Object data) {
return new JsonData(0, data, null);
}
// 失败，传入描述信息
public static JsonData buildError(String msg) {
return new JsonData(-1, null, msg);
}
// 失败，传入描述信息,状态码
public static JsonData buildError(String msg, Integer code) {
return new JsonData(code, null, msg);
}
// 成功，传入数据,及描述信息
public static JsonData buildSuccess(Object data, String msg) {
return new JsonData(0, data, msg);
}
// 成功，传入数据,及状态码
public static JsonData buildSuccess(Object data, int code) {
return new JsonData(code, data, null);
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
@Override
public String toString() {
return "JsonData [code=" + code + ", data=" + data + ", msg=" + msg
+ "]";
}
}