在Maven工程下Spring和Mybatis整合出现Invalid bound statement (not found):错误

工程下mapper.xml和mapper.java都存在切名称都对应

我习惯将mapper的xml和java都放在中的同一目录下

网上看了各种办法均失败

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="mapper">
    <select id="findUserByIdMapper" parameterType="int" resultType="ssm.po.User">
        select *from user where id=#{id}
    </select>
</mapper>

这是改之前的代码，问题出在<mapper namespace="mapper"> 原来mapper代理开发的xml文件中namespace不能乱写，必须用对应mapper.java的全路径，也就是Ctrl要点的进去.

 因为用的是Maven构建，在pom.xml的<build></build>标签中添加如下代码即可

                <resources> 
            <resource> 
                <directory>src/main/java</directory> 
                <includes> 
                    <include>**/*.properties</include> 
                    <include>**/*.xml</include> 
                </includes> 
                <filtering>false</filtering> 
            </resource> 
            <resource> 
                <directory>src/main/resources</directory> 
                <includes> 
                    <include>**/*.properties</include> 
                    <include>**/*.xml</include> 
                </includes> 
                <filtering>false</filtering> 
            </resource> 
        </resources>             

问题解决！