一般这个问题是由于用了工具自动生成*.hbm.xml文件 而发生的错误,一开始你的程序是好的,但是在你换了台机器,访问的数据库有变化时(也许用到里面的表都没有变动),可能就会出现org.hibernate.exception.SQLGrammarException:Could not execute JDBC batch update的问题解决办法是把*.hbm.xml文件的 schema=" " 改为现在对应的用户
User.hbm.xml
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.wbj.pojo.User" table="user" catalog="bbs" schema="sinoest">
<id name="id" type="java.lang.Integer">
<column name="Id" />
<generator class="increment" />
</id>
<property name="username" type="java.lang.String">
<column name="username" length="20" />
</property>
<property name="password" type="java.lang.String">
<column name="password" length="20" />
</property>
<property name="quanxian" type="java.lang.String">
<column name="quanxian" length="2" />
</property>
</class>
</hibernate-mapping>
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