<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[MapleTing的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/MapleTing</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; MapleTing]]></copyright><item><title><![CDATA[SpringBoot service 注入为null]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/114299418</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/114299418</guid><author>MapleTing</author><pubDate>Wed, 03 Mar 2021 09:23:34 +0800</pubDate><description><![CDATA[方法修饰符用的是private导致的！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！
...]]></description><category></category></item><item><title><![CDATA[HIVE列出两个日期之间的所有日期]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/107404065</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/107404065</guid><author>MapleTing</author><pubDate>Fri, 17 Jul 2020 11:16:53 +0800</pubDate><description><![CDATA[select 
    tmp.*, 
    t.*, 
    date_add(start_date, pos) as mid_date
from(
    select '1' as uid,
    '2020-07-01' as start_date, 
    '2020-07-17' as end_date 
)tmp
lateral view posexplode( split( space( datediff( end_date, start_date ) ), '' ) ) t as ]]></description><category></category></item><item><title><![CDATA[Java中String.split中.的问题]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/97243648</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/97243648</guid><author>MapleTing</author><pubDate>Thu, 25 Jul 2019 10:43:53 +0800</pubDate><description><![CDATA[例如如下代码：

String a="test.test";

String aa=a.split(".");

System.out.pringln(aa.length);

此时输出的值为 0，

此处需要修改成：

String aa=a.split("\\.");

就可以得到输出值 2.
...]]></description><category></category></item><item><title><![CDATA[HBase Master启动失败 报 master.HMaster: Failed to become active master 解决方法]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/95640624</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/95640624</guid><author>MapleTing</author><pubDate>Fri, 12 Jul 2019 17:53:01 +0800</pubDate><description><![CDATA[报错内容：

ERROR [Thread-21] master.HMaster: Failed to become active
master
java.lang.IllegalStateException: The procedure WAL relies on the ability to hsync for
proper operation during component failures...]]></description><category></category></item><item><title><![CDATA[hadoop启动之后没有Proxy服务]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/86606762</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/86606762</guid><author>MapleTing</author><pubDate>Wed, 23 Jan 2019 11:11:31 +0800</pubDate><description><![CDATA[使用hadoop2.9.2版本，服务启动正常，日志也没有看到错误信息。但是启动后hdfs dfs -ls和hdfs dfs -mkdir等操作均无法完成，只报Couldn't create proxy provider null的错误信息，在日志里面也没有看到什么错误提示。
在网上找了很久这个报错的内容很少，hdfs也重新格式化过了都没有用。

解决：
&lt;name&gt;dfs.client...]]></description><category></category></item><item><title><![CDATA[hadoop集群格式化namenode报错]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/86536133</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/86536133</guid><author>MapleTing</author><pubDate>Fri, 18 Jan 2019 10:54:03 +0800</pubDate><description><![CDATA[ 

STARTUP_MSG:   build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r 826afbeae31ca687bc2f8471dc841b66ed2c6704; compiled by 'ajisaka' on 2018-11-13T12:42Z
STARTUP_MSG:   java = 1.8.0_65
****...]]></description><category></category></item><item><title><![CDATA[Can't create session svn: Unable to connect to a repository at URL “...”的解决方案]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/80880187</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/80880187</guid><author>MapleTing</author><pubDate>Mon, 02 Jul 2018 09:35:08 +0800</pubDate><description><![CDATA[    Can't create sessionsvn: Unable to connect to a repository at URL '...'Cannot negotiate authentication mechanism查看Eclipse-&amp;gt;Windows-&amp;gt;Preferences-&amp;gt;Team-&amp;gt;SVN中SVN接口：Client属性为JavaHLM(JNI) 1...]]></description><category></category></item><item><title><![CDATA[javascript跨浏览器创建XMLHttpRequest]]></title><link>https://blog.youkuaiyun.com/MapleTing/article/details/8019493</link><guid>https://blog.youkuaiyun.com/MapleTing/article/details/8019493</guid><author>MapleTing</author><pubDate>Wed, 26 Sep 2012 09:14:26 +0800</pubDate><description><![CDATA[//定义xmlhttprequest对象
    var xmlrequest;
    //完成xmlhttprequest对象的初始化
    function createXMLHttpRequest() {
        if (window.XMLHttpRequest) {
            //DOM2浏览器
            xmlrequest = ne]]></description><category></category></item></channel></rss>