55 lines
1.4 KiB
Java
Executable File
55 lines
1.4 KiB
Java
Executable File
package com.akaxin.site.business.cache;
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import java.util.concurrent.TimeUnit;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.google.common.cache.Cache;
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import com.google.common.cache.CacheBuilder;
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/**
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* 缓存websession，过期1分钟
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*
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* @author Sam{@link an.guoyue254@gmail.com}
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* @since 2018-05-07 19:25:38
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*/
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public class WebSessionCache {
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private static final Logger logger = LoggerFactory.getLogger(WebSessionCache.class);
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/**
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* 最大数量1000个 最长过期时间1分钟
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*
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*/
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private static Cache<String, String> webSessCache = CacheBuilder.newBuilder().maximumSize(1000)
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.expireAfterWrite(60, TimeUnit.SECONDS).build();
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public static String getSiteUserId(String sessionId) {
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String siteUserId = webSessCache.getIfPresent(sessionId);
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if (StringUtils.isNotEmpty(siteUserId)) {
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webSessCache.invalidate(sessionId);
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}
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return siteUserId;
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}
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public static void putWebAuthSession(String sessionId, String siteUserId) {
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webSessCache.put(sessionId, siteUserId);
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}
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public static void main(String[] args) {
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webSessCache.put("101", "hello world!");
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String hello = getSiteUserId("101");
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System.out.println("hello = " + hello);
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String hello2 = getSiteUserId("101");
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System.out.println("hello = " + hello2);
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String hello3 = getSiteUserId("1012");
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System.out.println("hello = " + hello3);
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}
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}
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