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JBuilder2005所带JDK的版本是1.4.2_04-b05,其文件放在目录JBuilder_HOMEjdk1.4下，Tomcat的最新版本是5.0.27，其文件放在目录JBuilder_HOME hirdparty jakarta-tomcat-5.0.27下。下面首先给出给出了一个使用Tomcat环境下的数据库连接池Database Connection Pool (DBCP) 的例子。 1. File-New Project新建工程文件,输入工程文件名称myWeb和目录C:myWeb 2. Project-Project Properties设置工程文件的属性，选择Tomcat为服务器CopyRight owned by the original author.--(www.MegaEntry.com)
3. File-New新建Web Module（WAR） 输入Web Module的名称DBTest和目录DBTest 4. File-New新建JSP，输入jsp文件的名称test.jsp，产生test.jsp文件后修改test.jsp的内容MegaEntry - Social networking and discussion site!
Test.jsp:| ＜%@ page contentType= "text/html; charset=Big5 " %＞＜html＞＜head＞ MegaEntry - Social networking and discussion site! ＜title＞DB Test＜/title＞＜/head＞＜body＞ ＜% foo.DBTest tst = new foo.DBTest(); tst.init();CopyRight owned by the original author.--(www.MegaEntry.com) %＞ ＜h2＞Results＜/h2＞ Foo ＜%= tst.getFoo() %＞＜br/＞ Bar ＜%= tst.getBar() %＞＜/body＞＜/html＞ |
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将会生成一个名称为test的runtime configuration。 选Run-Configurations-Edit可修改runtime configuration，特别是可以指定服务器的端口号和是否自动搜索为被占用的端口。 5. File-New Class，输入类名DBTest和包名foo，产生DBTest.java文件后修改它的内容CopyRight owned by the original author.--(www.MegaEntry.com)
DBTest.java| package foo;import javax.naming.*;import javax.sql.*; MegaEntry - Social networking and discussion site! import java.sql.*;public class DBTest { String foo = "Not Connected "; int bar = -1; public void init() { try{CopyRight owned by the original author.--(www.MegaEntry.com) Context ctx = new InitialContext(); if(ctx == null ) throw new Exception( "Boom - No Context "); DataSource ds =(DataSource)ctx.lookup( "java:comp/env/jdbc/TestDB "); if (ds != null) { Connection conn = ds.getConnection();MegaEntry - Social networking and discussion site! if(conn != null) { foo = "Got Connection "+conn.toString(); Statement stmt = conn.createStatement(); ResultSet rst =stmt.executeQuery( "select id, foo, bar from testdata "); if(rst.next()) { foo=rst.getString(2);CopyRight owned by the original author.--(www.MegaEntry.com) bar=rst.getInt(3); } conn.close(); } } }catch(Exception e) {CopyRight owned by the original author.--(www.MegaEntry.com) e.printStackTrace(); } } public String getFoo() { return foo; } public int getBar() { return bar;}}CopyRight owned by the original author.--(www.MegaEntry.com) |
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| ＜?xml version= "1.0 " encoding= "UTF-8 "?＞＜web-app 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 " version= "2.4 "＞ ＜description＞MySQL Test App＜/description＞ ＜resource-ref＞ CopyRight owned by the original author.--(www.MegaEntry.com) ＜description＞DB Connection＜/description＞ ＜res-ref-name＞jdbc/TestDB＜/res-ref-name＞ ＜res-type＞javax.sql.DataSource＜/res-type＞ ＜res-auth＞Container＜/res-auth＞ ＜/resource-ref＞＜/web-app＞ |
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7. F9运行应用，myWeb目录中将会生成Tomcat子目录，其中包含了conf子目录， 在Tomcat_HOMEconfCatalinalocalhost目录中生成了DBTest.xml文件 8. 将myWebTomcatconf目录中的文件server8080.xml加入工程文件，修改server8080.xml的内容MegaEntry - Social networking and discussion site!
server8080.xml:| ＜?xml version= "1.0 " encoding= "UTF-8 "?＞＜Server debug= "0 " port= "8081 " shutdown= "SHUTDOWN "＞＜Service name= "Catalina "＞ CopyRight owned by the original author.--(www.MegaEntry.com) ＜Connector acceptCount= "10 " connectionTimeout= "60000 " debug= "0 " maxThreads= "75 " minSpareThreads= "5 " port= "8080 "/＞ ＜Engine debug= "0 " defaultHost= "localhost " name= "Catalina "＞ ＜Host appBase= "C:myWebTomcatwebapps " autoDeploy= "false " debug= "0 " deployXML= "false " name= "localhost " unpackWARs= "false "＞ ＜Context path= "/DBTest " docBase= "C:myWebDBTest " debug= "5 " reloadable= "true " crossContext= "true " workDir= "C:myWebTomcatworkDBTest "＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜Logger className= "org.apache.catalina.logger.FileLogger " prefix= "localhost_DBTest_log. " suffix= ".txt " timestamp= "true "/＞ ＜Resource name= "jdbc/TestDB " auth= "Container " type= "javax.sql.DataSource "/＞ ＜ResourceParams name= "jdbc/TestDB "＞ ＜parameter＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜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 handleCopyRight owned by the original author.--(www.MegaEntry.com) all of your db connections. Set to 0 for no limit. --＞ ＜parameter＞ ＜name＞maxActive＜/name＞ ＜value＞100＜/value＞ ＜/parameter＞MegaEntry - Social networking and discussion site! ＜!-- Maximum number of idle dB connections to retain in pool. Set to 0 for no limit. --＞ ＜parameter＞ ＜name＞maxIdle＜/name＞MegaEntry - Social networking and discussion site! ＜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.CopyRight owned by the original author.--(www.MegaEntry.com) --＞ ＜parameter＞ ＜name＞maxWait＜/name＞ ＜value＞10000＜/value＞ ＜/parameter＞ ＜!-- MySQL dB username and password for dB connections --＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜parameter＞ ＜name＞username＜/name＞ ＜value＞sa＜/value＞ ＜/parameter＞ ＜parameter＞ ＜name＞password＜/name＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜value＞topcomputer＜/value＞ ＜/parameter＞ ＜!-- Class name for mm.mysql JDBC driver --＞ ＜parameter＞ ＜name＞driverClassName＜/name＞ ＜value＞com.microsoft.jdbc.sqlserver.SQLServerDriver＜/value＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜/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.MegaEntry - Social networking and discussion site! --＞ ＜parameter＞ ＜name＞url＜/name＞ ＜value＞jdbc:microsoft:sqlserver://nt04:1433;DatabaseName=test＜/value＞ ＜/parameter＞＜/ResourceParams＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜/Context＞＜/Host＞＜/Engine＞＜/Service＞＜/Server＞ |
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10. 在SQL Server中建立数据库test，数据库表文件testdata creatTable.sql:| if exists (select * from dbo.sysobjects where id = object_id(N '[dbo].[testdata] ') and OBJECTPROPERTY(id, N 'IsUserTable ') = 1) MegaEntry - Social networking and discussion site! drop table [dbo].[testdata]GOCREATE TABLE [dbo].[testdata] ( [id] [int] NOT NULL , [foo] [varchar] (50) COLLATE Chinese_Taiwan_Stroke_CI_AS NULL ,CopyRight owned by the original author.--(www.MegaEntry.com) [bar] [int] NOT NULL ) ON [PRIMARY]GO |
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11. F9 12. 在c:myWebmulu中建立批处理文件startup.bat和shutdown.bat内容分别如下：CopyRight owned by the original author.--(www.MegaEntry.com)
startup.bat:| C:BorlandJBuilder2005jdk1.4injavaw -classpath "C:BorlandJBuilder2005 hirdpartyjakarta-tomcat-5.0.27inootstrap.jar;C:BorlandJBuilder2005jdk1.4lib ools.jar " "-Dcatalina.home=C:/Borland/JBuilder2005/thirdparty/jakarta-tomcat-5.0.27 " org.apache.catalina.startup.Bootstrap -config "C:myWebTomcatconfserver8080.xml " startShutdown.bat: MegaEntry - Social networking and discussion site! C:BorlandJBuilder2005jdk1.4injavaw -classpath "C:BorlandJBuilder2005 hirdpartyjakarta-tomcat-5.0.27inootstrap.jar;C:BorlandJBuilder2005jdk1.4lib ools.jar " "-Dcatalina.home=C:/Borland/JBuilder2005/thirdparty/jakarta-tomcat-5.0.27 " org.apache.catalina.startup.Bootstrap -config "C:myWebTomcatconfserver8080.xml " stop |
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2. 将DBTest.war拷贝到Tomcat_HOMEwebapps 3. 在Tomcat_HOMEconfCatalinalocalhost目录中建立文件DBTest.xmlDBTest.xmlMegaEntry - Social networking and discussion site!
| ＜!-- Context configuration file for the Tomcat Administration Web App$Id: admin.xml,v 1.2 2002/07/23 12:13:05 remm Exp $--＞ CopyRight owned by the original author.--(www.MegaEntry.com) ＜Context path= "/DBTest " docBase= "/DBTest " debug= "5 " reloadable= "true " crossContext= "true " workDir= "../work/DBTest "＞＜Logger className= "org.apache.catalina.logger.FileLogger " prefix= "localhost_DBTest_log. " suffix= ".txt " timestamp= "true "/＞＜Resource name= "jdbc/TestDB " auth= "Container " type= "javax.sql.DataSource "/＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜ResourceParams name= "jdbc/TestDB "＞ ＜parameter＞ ＜name＞factory＜/name＞ ＜value＞org.apache.commons.dbcp.BasicDataSourceFactory＜/value＞ ＜/parameter＞ ＜!--MegaEntry - Social networking and discussion site! 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＞MegaEntry - Social networking and discussion site! ＜value＞100＜/value＞ ＜/parameter＞ ＜!-- Maximum number of idle dB connections to retain in pool. Set to 0 for no limit. --＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜parameter＞ ＜name＞maxIdle＜/name＞ ＜value＞30＜/value＞ ＜/parameter＞ ＜!-- Maximum time to wait for a dB connection to become availableMegaEntry - Social networking and discussion site! 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＞MegaEntry - Social networking and discussion site! ＜/parameter＞ ＜!-- MySQL dB username and password for dB connections --＞ ＜parameter＞ ＜name＞username＜/name＞ ＜value＞sa＜/value＞ ＜/parameter＞MegaEntry - Social networking and discussion site! ＜parameter＞ ＜name＞password＜/name＞ ＜value＞topcomputer＜/value＞ ＜/parameter＞ ＜!-- Class name for mm.mysql JDBC driver --＞ ＜parameter＞CopyRight owned by the original author.--(www.MegaEntry.com) ＜name＞driverClassName＜/name＞ ＜value＞com.microsoft.jdbc.sqlserver.SQLServerDriver＜/value＞ ＜/parameter＞ ＜!-- The JDBC connection url for connecting to your MySQL dB. The autoReconnect=true argument to the url makes sure that theMegaEntry - Social networking and discussion site! 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:microsoft:sqlserver://nt04:1433;DatabaseName=test＜/value＞MegaEntry - Social networking and discussion site! ＜/parameter＞＜/ResourceParams＞＜/Context＞ |
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为什么不能生成war文件？ 在proterties for Web Module对话框中设置与Build有关的属性Build Web archive。 如何在Web应用中加入目录和文件？MegaEntry - Social networking and discussion site!
右击Module directory，在弹出的菜单中选择New-directory，输入目录名称；或右击拟在其中建立文件的目录，在弹出的菜单中选择New-File，选择文件类型，输入文件名。注意这样加入的文件只能是指定的文件类型。这样加入的目录和文件都会打包到war文件中。 如何加入其它类型的文件？ 可以将文件拷贝到指定的目录，在proterties for Web Module对话框中设置属性Content，选择include all classes and resources，这样也可以将加入的文件打包到war文件中。CopyRight owned by the original author.--(www.MegaEntry.com)
如何使用指定的JDK？ 选择菜单Tools-Configure-JDKs，在弹出的对话框中按New按钮，然后选择JDK的路径。 选择菜单Project-Project Properties，在弹出的对话框中选择加入的JDK。MegaEntry - Social networking and discussion site!
如何使用指定的Tomcat？ 选择菜单Enterprise-Configure Servers,在弹出的对话框中选择Tomcat5.0后按Copy按钮， 选择Copy产生的服务器Copy of Tomcat 5.0，选择Home DirectoryMegaEntry - Social networking and discussion site!
选择菜单Project-Project Properties，在弹出的对话框中设置属性server,选择加入的Tomcat服务器IE 6.0 or above is perfect |
ICP No.06021001