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RSS订阅原创 java双线程打印ABAB
main方法内，有两个实线程A和B，A线程只能打印“A”，B线程只能打印“B”，运行该方法后，打印结果为ABABABAB…，交替打印100次。利用join方法实现如下：public static void main(String[] args) throws InterruptedException{}...
2019-12-26 11:35:33
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原创 mysql中的trace用法及参数解释
trace工具用法：1 mysql> set session optimizer_trace=“enabled=on”,end_markers_in_json=on; ‐‐开启trace2 mysql> select * from employees where name > ‘a’ order by position;3 mysql> SELECT * FROM i...
2019-11-25 00:50:45
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原创 集群下利用redis实现分布式锁来保证只有一个服务器执行定时任务
利用redis的setnx定时分布式锁，核心代码如下：/** * 给key上锁，锁的时间长为seconds秒 * * @param key * @param seconds * @return */ public boolean setLock(String key, int seconds) { Jedis client = getJedis(); if (...
2019-11-18 12:12:16
1337
原创 用JAVA实现sse客户端
废话少说，直接上代码。sseClientpackage com.hyd.sse.client;import java.io.BufferedInputStream;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStream...
2019-10-08 15:07:58
6399
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libcom_err-devel-1.41.12-24.el6.x86_64.rpm
2019-10-08
libcom_err-1.41.12-24.el6.x86_64.rpm
2019-10-08
krb5-libs-1.10.3-65.el6.x86_64.rpm
2019-10-08
krb5-devel-1.10.3-65.el6.x86_64.rpm
2019-10-08
keyutils-libs-devel-1.4-5.el6.x86_64.rpm
2019-10-08
kernel-headers-2.6.32-754.17.1.el6.x86_64.rpm
2019-10-08
glibc-headers-2.12-1.212.el6_10.3.x86_64.rpm
2019-10-08
glibc-devel-2.12-1.212.el6_10.3.x86_64.rpm
2019-10-08
glibc-common-2.12-1.212.el6_10.3.x86_64.rpm
2019-10-08
glibc-2.12-1.212.el6_10.3.x86_64.rpm
2019-10-08
gcc-4.4.7-23.el6.x86_64.rpm
2019-10-08
e2fsprogs-libs-1.41.12-24.el6.x86_64.rpm
2019-10-08
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