tomcat5中配置
mysql数据源:
一、配置环境变量:
softe version:tomcat5.0.12/
mysql4.1.7/mysql_driver---
mysql-coector-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\tomcat5;
mysql在C:\Program Files\My
SQL\My
SQL Server 4.1
Path(在原来的基础上加上):
d:\myweb\tomcat5\bid:\myweb\jdk1.4;d:\myweb\
jdk1.4\bi
d:\myweb\tomcat5\common\lib\servlet-api.jar;C:\Program Files\
MySQL\MySQL Server4.1\bin
CLAATH:d:\myweb\tomcat5\common\lib\servlet-api.jar;d:\myweb\
tomcat5\common\lib\j-api.jar
JAVA_HOME:d:\myweb\jdk1.4
CATALINA_HOME:d:\myweb\tomcat5
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 forumd
create table member
(
id int,
name varchar(6)
);
然后插入两条测试数据如下:
iert into member values(1,"zhang");
iert 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:\myweb\mya
首先要将mysql的驱动程序放到d:\myweb\tomcat5\common\lib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:\tomcat5\conf\server.xml,找到结束标志,然后在之前加上如下语句:
<Context path="/mya" docBase="d:\myweb\mya" debug="0"
reloadable="true" >
<Resource name="jdbc/DBCoection"
auth="Container"
type="javax.sql.DataSource" />
<ResourceParams name="jdbc/DBCoection">
<arameter>
<ame>factory</name>
<value>org.apache.commo.dbcp.BasicDataSourceFactory</value>
</parameter>
<!-- Maximum number of dB coectio in pool. Make sure you
configure your mysqld max_coectio large enough to handle
all of your db coectio. Set to 0 for no limit.
-->
<arameter>
<ame>maxActive</name>
<value>10</value>
</parameter>
<!-- Maximum number of idle dB coectio to retain in pool.
Set to 0 for no limit.
-->
<arameter>
<ame>maxIdle</name>
<value>3</value>
</parameter>
<!-- Maximum time to wait for a dB coection 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 coection 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.
-->
<arameter>
<ame>maxWait</name>
<value>10000</value>
</parameter>
<!-- MySQL dB username and paword for dB coectio -->
<arameter>
<ame>username</name>
<value>root</value>
</parameter>
<arameter>
<ame>aword</name>
<value>1234</value>
</parameter>
<!-- Cla name for mm.mysql JDBC driver -->
<arameter>
<ame>driverClaame</name>
<value>com.mysql.jdbc.Driver</value>
</parameter>
<!-- The JDBC coection url for coecting to your MySQL dB.
The autoRecoect=true argument to the url makes sure that the
mm.mysql JDBC Driver will automatically recoect if mysqld closed the
coection. mysqld by default closes idle coectio after 8 hours.
-->
<arameter>
<ame>url</name>
<value>jdbc:mysql://localhost:3306/forumdb?autoRecoect=true</value>
</parameter>
</ResourceParamgt;
</Context>
再次提醒:一定要放在之前!
四、配置web.xml
web.xml位于d:\myweb\mya\WEB-INF下,也即是你的WEB里的web.xml。
同样用文本编辑器打开web.xml,然后加入如下语句(在
与之间)
<resource-ref>
<descriptiogt;DB Coectiolt;/descriptiogt;
<res-ref-name>jdbc/DBCoectiolt;/res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
五、编写测试j page。
在d:\myweb\mya\下编写一个dbtest.j,代码如下:
<%@ page import="java.io.*,java.util.*,java.sql.*,javax.sql.*,javax.naming.*"%>
<%@ page contentType="text/html;charset=GB2312"%>
<html>
<head>lt;title>DataSourse Coection Test</title>lt;/head>
<ody>
<%
try{
java.sql.Coection co
Statement stmt;
ResultSet r
Context ctx = new InitialContext();
DataSource ds=(DataSource)ctx.lookup("java:comp/env/jdbc/DBCoection");
con=ds.getCoection();
stmt=con.createStatement();
rs=stmt.executeQuery("select * from member");
while(rs.next()){
out.print(rs.getInt(1);
out.print(rs.getString(2));
}
rs.close();
stmt.close();
con.close();
}catch(Exception e){
out.print(e.getMeage());
}
%>
</body>
</html>
六、开始测试
运行tomcat.bat,打开IE在地址栏中输入:http://localhost:8080/mya/dbtest.j
如果能够看到看到如下数据,说明配置成功。