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发表时间：2009-10-14
最后修改：2009-10-14
Proxool连接池是sourceforge下的一个开源项目,这个项目提供一个健壮、易用的连接池，最为关键的是 <?xml version="1.0" encoding="UTF-8"?> <!-- the proxool configuration can be embedded within your own application's. Anything outside the "proxool" tag is ignored. --> <something-else-entirely> <proxool> <alias>mydata</alias> <driver-url> jdbc:mysql://localhost:3306/test </driver-url> <driver-class> org.gjt.mm.mysql.Driver </driver-class> <driver-properties> <property name="user" value="root" /> <property name="password" value="root" /> </driver-properties> <maximum-connection-count>10</maximum-connection-count> <house-keeping-test-sql> select CURRENT_DATE </house-keeping-test-sql> </proxool> </something-else-entirely> <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>ServletConfigurator</servlet-name> <servlet-class> org.logicalcobwebs.proxool.configuration.ServletConfigurator </servlet-class> <init-param> <param-name>xmlFile</param-name> <param-value>WEB-INF/proxool.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet> <servlet-name>Admin</servlet-name> <servlet-class> org.logicalcobwebs.proxool.admin.servlet.AdminServlet </servlet-class> </servlet> <servlet-mapping> <servlet-name>Admin</servlet-name> <url-pattern>/Admin</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
<%@ page import="java.sql.*"%>
<%@ page contentType="text/html;charset=GB2312"%>
<html>
<head>
<title>proxool测试</title>
</head>
<body>
<h2>
使用 Proxool Connection Pool,用xml文件配置
</h2>
<%
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
Class.forName("org.logicalcobwebs.proxool.ProxoolDriver");
conn = DriverManager.getConnection("proxool.mydata");
stmt = conn.createStatement();
out.println("<br />数据库连接成功<br /><br />");
String query = "select now()";
rs = stmt.executeQuery(query);
while (rs.next()) {
out.print(rs.getString(1) + "--OK<br />");
}
stmt.close();
conn.close();
} catch (SQLException sqle) {
out.println("sqle=" + sqle);
out.println("<br />数据库连接失败<br /><br />");
} finally {
if(stmt != null){
try {
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if(conn != null){
try {
conn.close();
out.println("<br />数据库关闭成功<br />");
} catch (SQLException e) {
e.printStackTrace();
out.println("数据库关闭失败<br />");
}
}
}
%>
</body>
</html>
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