Invalid bound statement (not found): com.gec.mapper.UserMapper.selectById

当出现"Invalid bound statement (not found): com.gec.mapper.UserMapper.selectById"错误时，通常是由于以下几个问题导致的：

1. UserMapper.xml文件中没有配置名为"selectById"的statement。请检查UserMapper.xml文件中是否存在该方法的映射配置。

2. UserMapper.xml文件中的namespace路径错误。请确保namespace路径与Java接口的包路径一致。

3. UserMapper.xml文件中定义的每个statement的id错误。请检查是否正确配置了selectById方法的id。

4. UserMapper.xml文件中的parameterType路径错误。请确保parameterType的路径与Java实体类路径一致。

5. UserMapper.xml文件中的resultType路径错误。请确保resultType的路径与Java实体类路径一致。

请根据上述问题逐一检查并修复，以解决"Invalid bound statement (not found)"错误。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
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