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mybatis+spring搭建web项目，输入中文参数进行where查询无法得到结果，什么原因？

我在用spring+mybatis开发时，有一个页面需要进行搜索，并且是中文参数，我是用mybatis的where标签进行查询，具体代码如下： select count(*) from account and idcard_no=#{idcard_no,jdbcType=...

处理一个web请求涉及很多数据库查询，那么将Tomcat配置成NIO线程模型会不会反而降低并发能力？

数据库查询会阻塞当前NIO线程，那么这个NIO线程在此期间就无法处理其它请求，造成了CPU浪费。这样的话是不是还不如BIO模型并发能力好？

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更新时间 2024-05-02 04:04:51

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Web应用防火墙（WAF）

适用于网站、H5、小程序等。全面应对被搜索引擎标识为危险；出现垃圾内容、恶意弹窗；域名劫持；Web应用漏洞；被挂马中毒；数据泄露；恶意注册灌水；被CC攻击导致Web应用崩溃或打不开；SQL注入、XSS跨站等攻击；爬虫等问题

降价20%详情

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产品促销

按量付费0元开通

基础版仅需980元/月

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混合云/多云方案发布

WAF3.0新版发布

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