世界上本也不存在”银弹”，一套框架解决不了所有问题——月落
异常：
Invalid bound statement (not found): com.dream.ssm.mapper.ItemsMapperCustom.
问题：
找不到mapper，mapper.xml文件没有编译到应用服务器
解决：
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.tld</include>
<include>**/*.jsp</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.tld</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
因为在src/main/resources和src/main/java中都有mapper.xml文件，把上述代码加在pom.xml中的build中
