<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[qq89444的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/qq89444</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; qq89444]]></copyright><item><title><![CDATA[MyBatis数组与集合判断非空和长度]]></title><link>https://blog.youkuaiyun.com/qq89444/article/details/109787609</link><guid>https://blog.youkuaiyun.com/qq89444/article/details/109787609</guid><author>qq89444</author><pubDate>Wed, 18 Nov 2020 21:40:20 +0800</pubDate><description><![CDATA[数组判断
参数object为数组Object[]时。先判断是否为null，不为null则判断数组长度object.length是否大于0即可。
	&lt;if test="object!=null and object.length&gt;0"&gt;
		&lt;yourSql&gt;
	&lt;/if&gt;

集合判断
参数object为集合List&lt;Object&gt;时，先判断是否为null，不为null则判断集合长度object.size()是否大于0即可。
	&lt;if test="o]]></description><category></category></item></channel></rss>