问题描述 报空指针异常,但是我debug到对象是有值的,执行查询方法就报错,错误信息如下: 5C java.lang.NullPointerException at net.shop.services.manage.account.impl.AccountServiceImpl.selectCount(AccountServiceImpl.java:44) at net.shop.web.action.manage.account.AccountAction.unique(AccountActi
问题描述 查询数据库报错,错误提示如下,代码如下 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '? and sex=?' at line 1 解决方案 在执行 rs = pstat.executeQuery(sql); 之前 将sql打印出来,System.out.print
问题描述 新手,求教!我在整合struts与fckeditor是报错的错误如下,求高手解答 The server didn't send back a proper XML response. Please contact your system administrator. ** XML request error: There is no Action mapped for namespace /FCKeditor/editor/filemanager/browser/default/con