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jboss配置 mysql数据库连接池实例
1 :配置:
jdk 1.5
jboss4.0.4
mysql5.0
myeclipse 4.1
2: 建立数据库:
create database test;
use test;
drop table if exists `test`;
create table `test` (
`test_id` int(11) not null auto_increment,
`test_name` varchar(45) not null default '',
`test_password` varchar(45) not null default '',
primary key (`test_id`)
) engine=innodb default charset=latin1;
insert into `test` values (1,'test','test'),(2,'test2','test');
3:copy mysql的jdbc驱动放到jboss-4.0.4/server/default/lib
可到mysql网站下载www.mysql.com
4:在 jboss-4.0.4/server/default/deploy下新建文件mysql-ds.xml
可从jboss-4.0.4/docs/examples/jca copy 修改
想配置多个连接池只要多加一个<local-tx-datasource></local-tx-datasource>
其中内容如下:
<?xml version="1.0" encoding="utf-8"?>
<!-- $id: mysql-ds.xml,v 1.3.2.3 2006/02/07 14:23:00 acoliver exp $ -->
<!-- datasource config for mysql using 3.0.9 available from:
http://www.mysql.com/downloads/api-jdbc-stable.html
-->
<datasources>
<local-tx-datasource>
<jndi-name>test</jndi-name>
<connection-url>jdbc:mysql://127.0.0.1:3306/test</connection-url><!?test为数据库名-->
<driver-class>com.mysql.jdbc.driver</driver-class>
<user-name>root</user-name><!?用户名以下相同-->
<password>xxxxxxxx</password><!?密码以下相同-->
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.mysqlexceptionsorter</exception-sorter-class-name>
<!-- should only be used on drivers after 3.22.1 with "ping" support
<valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.mysqlvalidconnectionchecker</valid-connection-checker-class-name>
-->
<!-- sql to call when connection is created
<new-connection-sql>some arbitrary sql</new-connection-sql>
-->
<!-- sql to call on an existing pooled connection when it is obtained from pool - mysqlvalidconnectionchecker is preferred for newer drivers
<check-valid-connection-sql>some arbitrary sql</check-valid-connection-sql>
-->
<!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
<metadata>
<type-mapping>mysql</type-mapping>
</metadata>
</local-tx-datasource>
</datasources>
5:修改jboss-4.0.4/server/default/conf/ standardjaws.xml
<jaws>
<datasource>java:/test</datasource>
<type-mapping>mysql</type-mapping>
.....
</jaws>
修改jboss-4.0.4/server/default/conf/ standardjbosscmp-jdbc.xml
<jbosscmp-jdbc>
<defaults>
<datasource>java:/test</datasource>
<datasource-mapping>mysql</datasource-mapping>
</defaults>
</jbosscmp-jdbc>
修改jboss-4.0.4/server/default/conf/ login-config.xml
<application-policy name = "mysqldbrealm">
<authentication>
<login-module code =
"org.jboss.resource.security.configuredidentityloginmodule"
flag = "required">
<module-option name ="principal">test</module-option>
<module-option name ="username">root</module-option>
<module-option name ="password">xxxxxxxx</module-option>
<module-option name ="managedconnectionfactoryname">
jboss.jca:service=localtxcm,name=test
</module-option>
</login-module>
</authentication>
</application-policy>
6:myeclispe 新建web project 命名为:usetest
新建java类databaseconn.java
package com.db;
import java.sql.*;
import javax.naming.*;
import javax.sql.datasource;
public class databaseconn {
public static synchronized connection getconnection() {
try {
context envctx = new initialcontext();
datasource ds = (datasource) envctx.lookup("java:/test");
return ds.getconnection();
} catch (sqlexception e) {
system.out.println("数据源配置发生错误" + e.tostring());
return null;
} catch (namingexception e2) {
system.out.print("数据源配置" + e2.tostring());
return null;
}
}
public static void close(resultset rs, statement st, connection conn) {
try {
if (rs != null)
rs.close();
} catch (sqlexception ex) {
}
;
try {
if (st != null)
st.close();
} catch (sqlexception ex) {
}
;
try {
if (conn != null)
conn.close();
} catch (sqlexception ex) {
}
;
}
}
7:新建jsp页面:myjsp.jsp
<%@ page language="java" import="java.util.*" pageencoding="gb2312"%>
<%@ page import="java.sql.*"%>
<%@ page import="com.db.*"%>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en">
<html>
<head>
<title>my jsp 'myjsp.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%
connection conn = databaseconn.getconnection();
statement stmt=conn.createstatement();
resultset rs=stmt.executequery("select * from test");
while(rs.next())
{
out.println(rs.getint("test_id"));
out.println(rs.getstring("test_name"));
out.println(rs.getstring("test_password"));
}
databaseconn.close(rs,stmt,conn);
%>
</body>
</html>
8 :部署web project
9:重新启动服务器
10:访问: http://127.0.0.1:8080/usetest/myjsp.jsp
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