我刚刚了解到Redis和Redisson。基本上我试图使用Redis来存储AcessTokens/RefreshTokens用于授权在我的应用程序。 所以我想存储具有到期时间的令牌。我使用Spring Data Redis来存储令牌,但没有Api会使Map中的每个条目过期。我遇到了这个帖子Spring Data Redis Expire Key,因此抬头看着Redisson。我尝试了一个简单的Maven Java项目来测试过期。 这里的pom.xml:已过期Redisson Keys仍在Redis Cli中可见
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bridgelabz</groupId>
<artifactId>redissonApp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>redissonApp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson</artifactId>
<version>3.3.0</version>
</dependency>
</dependencies>
</project>
下面是Token类
package com.bridgelabz.redissonApp;
public class Token {
private String accessToken;
private int id;
public Token() { }
public Token(String accessToken, int id) {
this.accessToken = accessToken;
this.id = id;
}
public String getAccessToken() {
return accessToken;
}
public void setAccessToken(String accessToken) {
this.accessToken = accessToken;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
@Override
public String toString() {
return "Token [accessToken=" + accessToken + ", id=" + id + "]";
}
}
这里是我的演示应用程序:
package com.bridgelabz.redissonApp;
import java.util.concurrent.TimeUnit;
import org.redisson.Redisson;
import org.redisson.api.LocalCachedMapOptions;
import org.redisson.api.RMapCache;
import org.redisson.api.RedissonClient;
import org.redisson.api.LocalCachedMapOptions.EvictionPolicy;
import org.redisson.config.Config;
public class App {
public static void main(String[] args) {
Config config = new Config();
config.useSingleServer().setAddress("127.0.0.1:6379");
// LocalCachedMapOptions localCachedMapOptions =
// LocalCachedMapOptions.defaults()
// .evictionPolicy(EvictionPolicy.LFU);
RedissonClient redisson = Redisson.create(config);
try {
RMapCache<Integer, Token> map = redisson.getMapCache("TestMap");
Token myToken = new Token("abc", 1);
map.put(1, myToken, 10, TimeUnit.SECONDS);
System.out.println("Stored value with key 1 is: " + map.get(1));
}
finally {
redisson.shutdown();
}
}
}
运行App.java后,我得到的输出我得到输出为:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Stored value with key 1 is: Token [accessToken=abc, id=1]
和公正的评论看跌期权代码,10秒钟后运行的应用程序给我的部分期望的结果:
LF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Stored value with key 1 is: null
但是当我运行Redis的-CLI我仍然在输出所获得的价值:
127.0.0.1:6379> hget TestMap 1
"\x00\x00\x00\x00\x00\x00\x00\x00H\x00\x00\x00\x00\x00\x00\x00{\"@class\":\"com.bridgelabz.redissonApp.Token\",\"accessToken\":\"abc\",\"id\":1}"
为什么不从redis中删除密钥?仅供参考:我的本地机器上的所有测试只包括redis。