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JSP操作MySQL数据库实例讲解

Jun 07, 2016 pm 05:40 PM
jsp tomcat

JSP操作MySQL数据库实例讲解一:概述在开始介绍之前先谈谈为什么要写这片文章,个人认为作为一个运维工程师,我们要熟悉的知识网络,不仅仅要限于点知识的掌握,

 JSP操作MySQL数据库实例讲解

一:概述

        在开始介绍之前先谈谈为什么要写这片文章,个人认为作为一个运维工程师,我们要熟悉的知识网络,香港空间,不仅仅要限于点知识的掌握,比如linux系统,web服务器的搭建,数据库等等,还要熟悉这些点组成的网络,确切的说,点之间的是怎么相互影响的,点与点之间怎么相互操作等等,比如在某个点出现问题时,我们可以系统的分析,最终查找到问题的根源。那么在web前端的JSP程序(或者PHP,ASP等)是怎么通过中间的程序与后台的数据库建立起一条线(这里我们暂且将JSP,tomcat,mysql称为一条所谓的线),怎么通信,怎么相互影响,这里涉及的内容太多了,限于个人水平有恨,仅介绍一下JSP怎么通过tomcat,美国空间,连接后台的mysql数据库。

二:拓扑图

实验环境:Centos5.8(kernel 2.6.18)+tomcat5.5+mysql5.0 

三:JSP连接MySQL

  • mysql数据库服务器的搭建-->详见
  •    注:服务器的搭建不是本文的重点

      这里先介绍一下前端的JSP页面和Tomcat连接的相关知识点,香港虚拟主机,这里谈谈个人的理解,首先JSP程序和tomcat通信要通过tomcat提供的连接池,tomcat可以在连接池中设置最大数量的连接,提供给JSP程序连接,连接池中的连接可以动态的释放与回收。但是连接池中提供的连接数要小于Mysql连接池的数量。

      tomcat配置连接池

    type="javax.sql.DataSource"

    tomcat5.5参数解释:

    在web应用程序的目录下创建WEB-INF/web.xml,并添加如下内容

    JSP连接数据库的用户

    JSP测试页面

    四:测试

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