求助加散分tomcat+mysql 200分
疯了,一天都没搞出来
redhat linux 9.0
tomcat 4.1
mysql 5.0.24
mysql-connector-java-3.0.17-ga-bin.jar
系统一直在websphere下和jboss上跑,现在想在tomcat下面跑
版本就是上边的了
server.xml更改如下,注视掉的就是试过没有用的
<Context path="/XXXX" docBase="XXXX" debug="5" reloadable="true" crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger" prefix="localhost_DBTest_log." suffix=".txt" timestamp="true"/>
<Resource name="jdbc/qts" auth="Container" type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/qts">
<parameter>
<name>factory</name>
<value>com.mysql.jdbc.jdbc2.optional.MysqlDataSourceFactory</value>
<!--<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>100</value>
</parameter>
<!-- Maximum number of idle dB connections to retain in pool.
Set to 0 for no limit.
-->
<parameter>
<name>maxIdle</name>
<value>30</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.
-->
<parameter>
<name>maxWait</name>
<value>10000</value>
</parameter>
<!-- MySQL dB username and password for dB connections -->
<parameter>
<name>username</name>
<value>sa</value>
</parameter>
<parameter>
<name>password</name>
<value>sa</value>
</parameter>
<!-- Class name for mm.mysql JDBC driver
<parameter>
<name>driverClassName</name>
<value>org.gjt.mm.mysql.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>driverClassName</name>
<value>com.mysql.jdbc.Driver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:mysql://127.0.0.1:3306/goldview?autoReconnect=true</value>
</parameter>
</ResourceParams>
</Context>
web.xml增加
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/qts</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
test.jsp
<%@ page contentType="text/html; charset=GBK"%>
<%@ page import="java.sql.*,javax.sql.DataSource,javax.naming.*"%>
<html>
<head><title>test.jsp</title></head>
<body bgcolor="#ffffff">
<h1>test Tomcat</h1>
<%
try
{
Context initCtx=new InitialContext();
out.println("1<br>");
DataSource ds = (DataSource)initCtx.lookup("java:comp/env/jdbc/qts");
out.println("2<br>");
out.println(ds.toString());
out.println("<br>");
Connection conn=ds.getConnection();
out.println("3<br>");
out.println("data from database:<br>");
Statement stmt=conn.createStatement();
out.println("4<br>");
ResultSet rs =stmt.executeQuery("select id, foo, bar from testdata");
while(rs.next())
{
out.println(rs.getInt("id"));
out.println(rs.getString("foo"));
out.println(rs.getString("bar"));
}
rs.close();
stmt.close();
}
catch(Exception e)
{
out.println("e.printStackTrace();<br>");
e.printStackTrace();
}
%>
</body>
</html>
死活出不来数据,郁闷了