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IFrame 中的Cookie问题

Posted by 夏泽民 Apr 4, 2022

在一个应用(domain: A)的某个page中, 通过IFrame的方式嵌入另一个应用(domain: B)的某个页面. 当两个应用的domain 不一样时, 在被嵌入的页面中不允许使用cookie(即使用cookie实现的session会失效). 在XP SP2和IE6之后，从安全性角度考虑，默认状态下不允许在iframe里使用跨站点cookie。

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Domain-Driven-design

Posted by 夏泽民 Apr 4, 2022

DDD 全程是 Domain-Driven Design，中文叫领域驱动设计，是一套应对复杂软件系统分析和设计的面向对象建模方法论。

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Count

Posted by 夏泽民 Apr 4, 2022

lastic search(简称es)中常用的search api，但有时候我们不需要满足条件的原始文档数据，而是需要返回符合条件的文档数，类似于mysql的select count(*)查询条数，es中进行count查询的api的endpoint为”_count”，

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CodeMirror

Posted by 夏泽民 Apr 4, 2022

CodeMirror is a versatile text editor implemented in JavaScript for the browser. It is specialized for editing code, and comes with over 100 language modes and various addons that implement more advanced editing functionality. Every language comes with fully-featured code and syntax highlighting to help with reading and editing complex code.

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varchar长度和explain varchar 长度

Posted by 夏泽民 Mar 26, 2022

1、 char长度固定， 即每条数据占用等长字节空间；适合用在身份证号码、手机号码等定。

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