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RecyclerView使用报错...   java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxxAct}: android.view.InflateException: Binary XML file line #170: Error inflating class android.support.v7.widget.RecyclerView ... Caused by: android.view.InflateException: Binary XML file line #170: Er ...
引入外部包 之后 android.support.v4.widget.DrawerLayout   alt+/ 无法提示代码
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:context="http://www.springframework.org/schema/context"

druid地址

github:   下载:https://github.com/AlibabaTech/druid 问题:https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98
转载 http://www.cnblogs.com/linjiqin/archive/2011/04/13/2014818.html   ORACLE有个高速缓冲的概念,这个高速缓冲就是存放执行过的SQL语句,那oracle在执行sql语句的时候要做很多工作,例如解析sql语句,估算索引利用率,绑定变量,读取数据块等等这些操作。假设高速缓冲里已经存储了执行过的sql语句,那就直接匹配执行了,少了步骤,自然就快了,但是经过测试会发现高速缓冲只对简单的表起作用,多表的情况完全没有效果,例如在查询单表的时候那叫一个快,但是假设连接多个表,就龟速了。最重要一点,ORACLE的高速缓冲是全字符匹 ...
Spring MVC does special care to upload file to server. It makes file upload an easy work for web application developers. Spring MVC library jar provides CommonsMultipartResolver class that makes special care to form submitted using “multipart/form-data” encode type. We can also specify max file siz ...
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