为什么这样修改新密码错误？？

我的JSP页面是这样的：
<form action="PasswordUpdate.jsp" method="post">
          <table cellSpacing=1 cellPadding=3 width=100% bgColor=#999999 border=0>
            <tr align=middle bgColor=#ffffff>
              <td width="160" align="right">请输入旧密码:&nbsp;&nbsp;&nbsp;</td>
              <td align="left"><input name="oldPassword" type="password" id="oldPassword"></td>
            </tr>
           
            <tr>
              <td  align=right bgColor=#ffffff height=26>密 码:&nbsp;&nbsp;&nbsp;</td>
              <td  align=left bgColor=#ffffff>
                <input name="newPassword" type="password" id="newPassword"></td>
            </tr>
            <tr>
              <td  align=right bgColor=#ffffff height=26>确认密码:&nbsp;&nbsp;&nbsp;</td>
              <td align=left bgColor=#ffffff>
                <input name="rePassword" type="password" id="rePassword"></td>
            </tr>
            <tr align="center" bgcolor="#FFFFFF">
              <td colspan="2"><input type="submit" name="Submit2" value="修改"></td>
            </tr>
          </table>
</form>



修改密码页面是这样的：
<%
ApplicantUserService userService = new ApplicantUserService();
ApplicantUser user = new ApplicantUser();
String password=(String) request.getParameter("rePassword");
user.setPasswd(password);
if(userService.updateUserBaseByUserName(user)) {
%>
<script language="JavaScript">
window.location.replace("Detail.jsp");
</script>
<%
}
else {
throw new Exception("更新出错");
}
%>

为什么回出错呢？报异常：
异常信息如下所示
com.ibatis.dao.client.DaoException: Failed to update - id [updateUserByUserName] - parameterObject [com.szxr.domain.ApplicantUser@ed32c4]. Cause: com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred in com/szxr/persistence/sqlmapdao/sql/ApplicantUser.xml. --- The error occurred while applying a parameter map. --- Check the updateUserByUserName-InlineParameterMap. --- Check the parameter mapping for the 'email' property. --- Cause: java.sql.SQLException: 无效的列类型 Caused by: java.sql.SQLException: 无效的列类型 Caused by: com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred in com/szxr/persistence/sqlmapdao/sql/ApplicantUser.xml. --- The error occurred while applying a parameter map. --- Check the updateUserByUserName-InlineParameterMap. --- Check the parameter mapping for the 'email' property. --- Cause: java.sql.SQLException: 无效的列类型 Caused by: java.sql.SQLException: 无效的列类型