摘要: 引用自网站https://mp.weixin.qq.com/s/lIVSQozEgFgivy5yvOZkfg 关系型数据库的弊端,需要自定义列及列对应的类型,在后续业务的扩展中,或许需要扩展单个列的描述功能,如果能用好 JSON 数据类型,那就能打通关系型和非关系型数据的存储之间的界限,为业务提供更 阅读全文
posted @ 2022-02-25 10:53 sunjinwei123 阅读(121) 评论(0) 推荐(0)
摘要: package com.sun.test.Jsch; import com.jcraft.jsch.SftpProgressMonitor; import java.text.NumberFormat; import java.util.concurrent.ScheduledExecutorSer 阅读全文
posted @ 2020-12-29 10:40 sunjinwei123 阅读(336) 评论(0) 推荐(0)
摘要: package com.sun.test; import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; impo 阅读全文
posted @ 2020-12-29 10:37 sunjinwei123 阅读(144) 评论(0) 推荐(0)
摘要: public static Properties loadProps(String filePath){ Properties properties = new Properties(); try { InputStream in =new BufferedInputStream(new FileI 阅读全文
posted @ 2020-11-03 09:52 sunjinwei123 阅读(187) 评论(0) 推荐(0)
摘要: /* ztree的右键功能 */ div#rMenu { position:absolute; visibility:hidden; top:0; background-color: #555; text-align: left; padding: 2px; } div#rMenu a{ curso 阅读全文
posted @ 2020-09-27 14:52 sunjinwei123 阅读(311) 评论(0) 推荐(0)
摘要: package com.sun.test.thread; public class ABC_Synch { public static class ThreadPrinter implements Runnable { private String name; private Object prev 阅读全文
posted @ 2020-08-17 17:00 sunjinwei123 阅读(303) 评论(0) 推荐(0)
摘要: package com.sun.test.student; public class KMP算法 { public static int[] getNext(String ps) { char[] p = ps.toCharArray(); int[] next = new int[p.length 阅读全文
posted @ 2020-08-10 15:04 sunjinwei123 阅读(363) 评论(0) 推荐(0)
摘要: package com.sun.test; import java.util.Arrays; import java.util.Comparator; public class HeapTestmin<E>{ Comparator<E> comparator; int size; E[] eleme 阅读全文
posted @ 2020-08-05 11:10 sunjinwei123 阅读(398) 评论(0) 推荐(0)
摘要: public class Node { int value; Node left; Node right; public Node(int value){ this.value=value; } /** * 返回当前节点的高度 * @return */ public int hight(){ ret 阅读全文
posted @ 2020-06-04 09:43 sunjinwei123 阅读(179) 评论(0) 推荐(0)
该文被密码保护。 阅读全文
posted @ 2020-05-22 17:19 sunjinwei123 阅读(0) 评论(0) 推荐(0)