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用hibernate操作数据库时，由于字段名称设置问题导致报错_MySQL

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Release： 2016-06-01 13:07:19
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Hibernate

用ssh框架写的一个小项目，创建的表里边有几个int型的列，在往数据库里添加和往外读取的时候总是出错。

在网上查了一下之后发现int型的值如果想在数据库保存为null就得映射为Integer。如果映射为int，默认存储的是0.

然后修改成Integer映射的，结果读取不出错了，可是添加依然出错，简直崩溃。。。

幸运的是，我想到了将hibernate转化成的sql语句放在了mysql中直接执行了一下，发现也报错，这个时候我突然意识到，应该是语句的问题，根据报的错误号（1064），在网上搜了一下，发现是因为有字段名字是mysql的保留字，改完名字程序立马复活了。

记录一下，别再被这错误坑了。。。

source：php.cn
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