jsp中对mysql赋值问题
- WBOYOriginal
- 2016-06-06 09:43:38967browse
mysqljsp语法
rs=sql.executeQuery("select * from user where username='"+username+"'");
这句话是在mysql中查找username的值为jsp中string变量username的值的记录。为啥要加这么多引号还有加号呢 不是很明白啊。求高手解答
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：mysql-如何利用C#和socket做出一个聊天室Next article：mysql-jsp链接Mysql数据库,代码问题、求指导