SQL注入防止-阿里云

sql注入的本质和如何防止sql注入问题

所谓SQL注入，就是通过把SQL命令插入到Web表单递交或输入域名或页面请求的查询字符串，最终达到欺骗服务器执行恶意的SQL命令。我们永远不要信任用户的输入，我们必须认定用户输入的数据都是不安全的，我们都需要对用户输入的数据进行过滤处理。以下实例中，输入的用户名必须为字母、数字及下划线的组合，且用户...

关于SQL注入，为何用占位符就可以防止注入额？

请教下各位前辈，为啥用字符串凭借就不能防止注入额？结果不都是拼接成SQL语句吗？

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更新时间 2022-09-07 14:36:27

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