<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[w_loglin的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/w_loglin</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; w_loglin]]></copyright><item><title><![CDATA[java输出一个数组的所有排列形式(全排序)]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/115128535</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/115128535</guid><author>w_loglin</author><pubDate>Tue, 23 Mar 2021 16:16:47 +0800</pubDate><description><![CDATA[public static void prem(char[] buf,int start,int end){
if(start==end){//输出排列好的数组
for(char c:buf){
System.out.print©;
}
System.out.println();
}else{
for(int i=start;i&lt;=end;i++){
System.out.println(“i:”+i);
char temp=buf[start];//前后元素交换
buf[start]=buf[i];]]></description><category></category></item><item><title><![CDATA[mysql的优化and数据库的三范式]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/106716527</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/106716527</guid><author>w_loglin</author><pubDate>Fri, 12 Jun 2020 15:24:57 +0800</pubDate><description><![CDATA[1、数据库三范式是什么？
第一范式：列不可再分
第二范式：有主键，且非主键字段依赖于主键字段
第三范式：非主键字段不能互相依赖
一、数据库表结构优化：
1、大表拆小表：
a)表结构字段比较多的表拆分成两个表，常用字段放在一个表，不常用字段放在另一个表。
b)表中数据量特别大，按照时间、状态等明显特征数据进行拆封成多个表。
2、多对多查询时把用到的数据列放在一个中间表中，改成对单标的查询
3、适当增加冗余字段来提高查询效率
二：列优化
1、列的类型和长度进行要精确
2、适当在查询列中增加索引来提高查询效率
索]]></description><category></category></item><item><title><![CDATA[redis的存储操作]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/106076312</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/106076312</guid><author>w_loglin</author><pubDate>Tue, 12 May 2020 14:52:18 +0800</pubDate><description><![CDATA[redis的存储操作

]]></description><category></category></item><item><title><![CDATA[api多对多关系与fegin的一边配置]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/106072163</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/106072163</guid><author>w_loglin</author><pubDate>Tue, 12 May 2020 11:16:12 +0800</pubDate><description><![CDATA[api配置多对多关系…

]]></description><category></category></item><item><title><![CDATA[jpa的动态查询与分页的java写发和vue的写发]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/106062985</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/106062985</guid><author>w_loglin</author><pubDate>Mon, 11 May 2020 21:24:54 +0800</pubDate><description><![CDATA[jpa的查询与分页 java代码分页的vue的写发

]]></description><category></category></item><item><title><![CDATA[vue中cookie的写发与获取操作]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105980256</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105980256</guid><author>w_loglin</author><pubDate>Thu, 07 May 2020 19:57:41 +0800</pubDate><description><![CDATA[这边是login中登录进去获取用户名和密码
上边定义一个user对象来获取对象 获取login中传入的操作
然后可以在vue页面操作和传入后台java进行操作  id

]]></description><category></category></item><item><title><![CDATA[jpa的代码操作整理]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105942613</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105942613</guid><author>w_loglin</author><pubDate>Wed, 06 May 2020 01:18:28 +0800</pubDate><description><![CDATA[entity层整理操作
Repository层操作实现

]]></description><category></category></item><item><title><![CDATA[ider图片上传然后和vue的图片上传]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105808163</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105808163</guid><author>w_loglin</author><pubDate>Tue, 28 Apr 2020 10:37:22 +0800</pubDate><description><![CDATA[首先有这个导入d盘的小工具吧
这是图片上传的controller层的代码 可以做程工具类直接拖进ider
这边是vue的上传图片的地方action些图片上传的http地址
这边是图片上传的方法
这个是图片显示 显示图片

...]]></description><category></category></item><item><title><![CDATA[用户登录和项目部署]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105778566</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105778566</guid><author>w_loglin</author><pubDate>Sun, 26 Apr 2020 22:12:58 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[好从努西]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105698978</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105698978</guid><author>w_loglin</author><pubDate>Thu, 23 Apr 2020 08:27:39 +0800</pubDate><description><![CDATA[public Order getUserFallbackMethod(Integer id){
Order order = orderService.getOrderById(id);
order.setUsername("固定值 ");
return order;
}
@HystrixCommand(fallbackMethod = "getUserFallbackMethod")
@Reque...]]></description><category></category></item><item><title><![CDATA[dubbo 支持的协议  dubbo协议的详情]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105577010</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105577010</guid><author>w_loglin</author><pubDate>Fri, 17 Apr 2020 11:47:30 +0800</pubDate><description><![CDATA[dubbo 支持的协议：
1、dubbo 协议 (默认)
2、rmi
3、hessian
4、http
5、webservice
6、thrift
7、memcached
8、redis
dubbo协议是dubbo默认的协议 ， 它的特点如下：
连接个数：单连接
连接方式：长连接
传输协议：TCP
传输方式：NIO异步传输
序列化：Hessian二进制序列化
适用范围：传入传出参数数据包较小（建议...]]></description><category></category></item><item><title><![CDATA[扇叶类页面vue的写法]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105503228</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105503228</guid><author>w_loglin</author><pubDate>Tue, 14 Apr 2020 07:46:49 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[自己使数据管理方便以后操作]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105501182</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105501182</guid><author>w_loglin</author><pubDate>Mon, 13 Apr 2020 23:59:08 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[写项目的Vue和el使用双拼接]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105501169</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105501169</guid><author>w_loglin</author><pubDate>Mon, 13 Apr 2020 23:58:04 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[声明日志对象和枚举的写发]]></title><link>https://blog.youkuaiyun.com/w_loglin/article/details/105501094</link><guid>https://blog.youkuaiyun.com/w_loglin/article/details/105501094</guid><author>w_loglin</author><pubDate>Mon, 13 Apr 2020 23:51:57 +0800</pubDate><description><![CDATA[声明日志对象

List item


这是Enum枚举的写发

]]></description><category></category></item></channel></rss>