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怎样在tomcat5中配置mysql数据源

 2007-07-26 10:57:59 来源:WEB开发网   
核心提示:一、配置环境变量:softe version:tomcat5.0.12/mysql4.1.7/mysql_driver---mysql-connector-java-3.1.4-beta-bin.jarmysql驱动程序可从www.mysql.com官方网站下载路径:tomcat5在d:mywebomcat5;mysq

一、配置环境变量:

softe version:tomcat5.0.12/mysql4.1.7/mysql_driver---
mysql-connector-java-3.1.4-beta-bin.jar

mysql驱动程序可从www.mysql.com官方网站下载

路径:

tomcat5在d:myweb  omcat5;
mysql在C:Program FilesMySQLMySQL Server 4.1

Path(在原来的基础上加上):

d:myweb  omcat5in;d:mywebjdk1.4;d:myweb
jdk1.4in;
d:myweb  omcat5commonlibservlet-api.jar;C:Program Files
MySQLMySQL Server4.1in
CLASSPATH:d:myweb  omcat5commonlibservlet-api.jar;d:myweb
tomcat5commonlibjsp-api.jar
JAVA_HOME:d:mywebjdk1.4
CATALINA_HOME:d:myweb  omcat5

二、建立测试数据库

在mysql中建立一个forumdb数据库,同时创建一个表member如下:

create database forumdb;
create table member
(
id int,
name varchar(6)
);

然后插入两条测试数据如下:

insert into member values(1,"zhang");
insert into member values(2,"wang");

至此,数据库准备完毕。

三、配置server.xml

注:我的web在d:mywebmyapps

首先要将mysql的驱动程序放到d:myweb  omcat5commonlib下面,一定要放".jar"的文件,如是".zip"的文件直接改为.jar即可。

用文本编辑器打开D:  omcat5confserver.xml,找到结束标志,然后在之前加上如下语句:

<Context path="/myapps" docBase="d:mywebmyapps" debug="0"
reloadable="true" >
 <Resource name="jdbc/DBConnection"
        auth="Container"
        type="javax.sql.DataSource" />
 <ResourceParams name="jdbc/DBConnection">
  <parameter>
   <name>factory</name>
   <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
  </parameter>
  <!-- Maximum number of dB connections in pool. Make sure you
     configure your mysqld max_connections large enough to handle
     all of your db connections. Set to 0 for no limit.
     -->
  <parameter>
   <name>maxActive</name>
   <value>10</value>
  </parameter>
  <!-- Maximum number of idle dB connections to retain in pool.
     Set to 0 for no limit.
     -->
  <parameter>
   <name>maxIdle</name>
   <value>3</value>
  </parameter>
  <!-- Maximum time to wait for a dB connection to become available
     in ms, in this example 10 seconds. An Exception is thrown if
     this timeout is exceeded. Set to -1 to wait indefinitely.
    Maximum time to wait for a dB connection to become available
     in ms, in this example 10 seconds. An Exception is thrown if
     this timeout is exceeded. Set to -1 to wait indefinitely.
     -->
  <parameter>
   <name>maxWait</name>
   <value>10000</value>
  </parameter>
  <!-- MySQL dB username and password for dB connections -->
  <parameter>
   <name>username</name>
   <value>root</value>
  </parameter>
  <parameter>
   <name>password</name>
   <value>1234</value>
  </parameter>
  <!-- Class name for mm.mysql JDBC driver -->
  <parameter>
    <name>driverClassName</name>
    <value>com.mysql.jdbc.Driver</value>
  </parameter>
  <!-- The JDBC connection url for connecting to your MySQL dB.
     The autoReconnect=true argument to the url makes sure that the
     mm.mysql JDBC Driver will automatically reconnect if mysqld closed the
     connection. mysqld by default closes idle connections after 8 hours.
     -->
  <parameter>
   <name>url</name>
   <value>jdbc:mysql://localhost:3306/forumdb?autoReconnect=true</value>
  </parameter>
 </ResourceParams>
</Context>

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