当时，我们也好生郁闷，这到底怎么回事，我们亲自测试后台添加任意的产品或者文字都能成功，偏偏他就不行，在网站搜索了相关的如“Ewebeditor 不能添加到数据库”，似乎找到了一点答案，因Ewebeditor自身没对单引号过滤，导致了添加不到数据库的问题。于是乎，我们把编辑器换成了fckeditor，可是还是不行，那是Ewebeditor及fckeditor自带的不完善导致的吗？为什么一个简单的单引号会引发不能添加到数据库呢，想到这里，我们想到了分析下入库代码，我们采用的是SQL=insert into product(title,content) values(' " &request("title")& "' ,' "&request("content")& " ' )的写法，于是我们找到客户当时COPY进编辑器里的内容，发现，果然这内容中包括有单引号，原来，正是由于客户提交到编辑器里的内容中含有单引号，导致我们的SQL语句变化了，相当于原来是SQL=insert into product(title,content) values('内容' ,'内容' )变成了SQL=insert into product(title,content) values(' 内容' ,' 内容'' ) ,我们细看就知道，就因为这content里多了个单引号，SQL语句发生的严重的写法错误，但是，我们也奇怪，既然他写法错误，为什么SQL语句不给出错误提示呢，竟然也会提示操作成功，想到这里，我们想到了2003年那几年，普遍的小黑客喜欢用的'or'='or'的后台入侵法，是乎正是利用了SQL执行时，没过滤单引号的BUG，导致SQL怎么执行，结果都返回真，呵呵，没想到，原以为写程序尽量图个简单明了，也是个错啊。好了，问题找到了，以后，凡是SQL入库前，我们都把字段过滤后再传值，就不会再出这样的问题了，下面是一个非常完善的SQL安全过滤函数，大家直接拿去就可以调用了。
实现代码如下：
Function HTMLEncode(Str)
If Isnull(Str) Then
HTMLEncode = ""
Exit Function
End If
Str = Replace(Str,Chr(0),"", 1, -1, 1)
Str = Replace(Str, """", """, 1, -1, 1)
Str = Replace(Str,"<","<", 1, -1, 1)
Str = Replace(Str,">",">", 1, -1, 1)
Str = Replace(Str, "script", "script", 1, -1, 0)
Str = Replace(Str, "SCRIPT", "SCRIPT", 1, -1, 0)
Str = Replace(Str, "Script", "Script", 1, -1, 0)
Str = Replace(Str, "script", "Script", 1, -1, 1)
Str = Replace(Str, "object", "object", 1, -1, 0)
Str = Replace(Str, "OBJECT", "OBJECT", 1, -1, 0)
Str = Replace(Str, "Object", "Object", 1, -1, 0)
Str = Replace(Str, "object", "Object", 1, -1, 1)
Str = Replace(Str, "applet", "applet", 1, -1, 0)
Str = Replace(Str, "APPLET", "APPLET", 1, -1, 0)
Str = Replace(Str, "Applet", "Applet", 1, -1, 0)
Str = Replace(Str, "applet", "Applet", 1, -1, 1)
Str = Replace(Str, "[", "[")
Str = Replace(Str, "]", "]")
Str = Replace(Str, """", "", 1, -1, 1)
Str = Replace(Str, "=", "=", 1, -1, 1)
Str = Replace(Str, "'", "''", 1, -1, 1)
Str = Replace(Str, "select", "select", 1, -1, 1)
Str = Replace(Str, "execute", "execute", 1, -1, 1)
Str = Replace(Str, "exec", "exec", 1, -1, 1)
Str = Replace(Str, "join", "join", 1, -1, 1)
Str = Replace(Str, "union", "union", 1, -1, 1)
Str = Replace(Str, "where", "where", 1, -1, 1)
Str = Replace(Str, "insert", "insert", 1, -1, 1)
Str = Replace(Str, "delete", "delete", 1, -1, 1)
Str = Replace(Str, "update", "update", 1, -1, 1)
Str = Replace(Str, "like", "like", 1, -1, 1)
Str = Replace(Str, "drop", "drop", 1, -1, 1)
Str = Replace(Str, "create", "create", 1, -1, 1)
Str = Replace(Str, "rename", "rename", 1, -1, 1)
Str = Replace(Str, "count", "count", 1, -1, 1)
Str = Replace(Str, "chr", "chr", 1, -1, 1)
Str = Replace(Str, "mid", "mid", 1, -1, 1)
Str = Replace(Str, "truncate", "truncate", 1, -1, 1)
Str = Replace(Str, "nchar", "nchar", 1, -1, 1)
Str = Replace(Str, "char", "char", 1, -1, 1)
Str = Replace(Str, "alter", "alter", 1, -1, 1)
Str = Replace(Str, "cast", "cast", 1, -1, 1)
Str = Replace(Str, "exists", "exists", 1, -1, 1)
Str = Replace(Str,Chr(13),"<br>", 1, -1, 1)
HTMLEncode = Replace(Str,"'","''", 1, -1, 1)
End Function
以上就是【Ewebeditor及fckeditork单引号问题的解决方法】的全部内容了,欢迎留言评论进行交流!