java web开发 环境准备 Lomboz+struts+Sqlserver2k+tomcat

1. 环境准备

1.1. 软件安装

1． 先到以下网站下载相应软件
l Eclipse (Lomboz): http://lomboz.objectweb.org/downloads/download.php
l tomcat: http://tomcat.apache.org/download-55.cgi
l SQL Server 2000 SP4:
英文版：
http://www.microsoft.com/downloads/details.aspx?FamilyID=8e2dfc8d-c20e-4446-99a9-b7f0213f8bc5&DisplayLang=en
中文版：
http://www.microsoft.com/downloads/details.aspx?FamilyID=8e2dfc8d-c20e-4446-99a9-b7f0213f8bc5&DisplayLang=zh-cn
l SQL Server 2000 Driver for JDBC Service Pack 3
http://www.microsoft.com/downloads/details.aspx?FamilyID=07287b11-0502-461a-b138-2aa54bfdc03a&DisplayLang=en
l Struts: http://struts.apache.org/download.cgi　
2． 安装SQL Server 2000
1. 安装SQL Server 2000
2. 安装SQL Server 2000 SP4
3． 安装Eclipse：解压Eclipse包即可
4． 安装tomcat
1. 安装Tomcat
2. 复制SQL Server 2000 Driver for JDBC的驱动包msbase.jar, mssqlserver.jar, msutil.jar到${Tomcat}/common/lib目录
5． 安装Struts，解压struts包即可

1.2. 测试环境

1.2.1. 测试Tomcat

1. 运行${Tomcat}/bin/tomcat.exe
2. 打开http://127.0.0.1:8080/ ，如果出现tomcat的欢迎界面，那么就运行成功了。

1.2.2. 在Eclipse中设置Tomcat

1. 打开Windows/Preferences选择项
2. 在Web Services/Server and Runtime中选择Tomcat Server

3. 在Server/Installed Runtimes中加入Tomcat Server

1.2.3. 测试SQL Server的连接

1. 运行以下代码
import java.sql.DriverManager;

public class SqlserverConnect {
private java.sql.Connection con = null;
private final String url = "jdbc:microsoft:sqlserver://";
private final String serverName= "127.0.0.1";
private final String portNumber = "1433";
private final String databaseName= "db_library";
private final String userName = "libuser";
private final String password = "libuser";
// Informs the driver to use server a side-cursor,
// which permits more than one active statement
// on a connection.
private final String selectMethod = "cursor";

// Constructor
public SqlserverConnect(){}

private String getConnectionUrl(){
//return url+serverName+":"+portNumber;
return url+serverName+":"+portNumber+";databaseName="+databaseName+";selectMethod="+selectMethod+";";
}

private java.sql.Connection getConnection(){
try{
//Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
DriverManager.registerDriver(new com.microsoft.jdbc.sqlserver.SQLServerDriver());
con = java.sql.DriverManager.getConnection(getConnectionUrl(),userName,password);
if(con!=null) System.out.println("Connection Successful!");
}catch(Exception e){
e.printStackTrace();
System.out.println("Error Trace in getConnection() : " + e.getMessage());
}
return con;
}

/*
Display the driver properties, database details
*/

public void displayDbProperties(){
java.sql.DatabaseMetaData dm = null;
java.sql.ResultSet rs = null;
try{
con= this.getConnection();
if(con!=null){
dm = con.getMetaData();
System.out.println("Driver Information");
System.out.println("/tDriver Name: "+ dm.getDriverName());
System.out.println("/tDriver Version: "+ dm.getDriverVersion ());
System.out.println("/nDatabase Information ");
System.out.println("/tDatabase Name: "+ dm.getDatabaseProductName());
System.out.println("/tDatabase Version: "+ dm.getDatabaseProductVersion());
System.out.println("Avalilable Catalogs ");
rs = dm.getCatalogs();
while(rs.next()){
System.out.println("/tcatalog: "+ rs.getString(1));
}
rs.close();
rs = null;
closeConnection();
}else System.out.println("Error: No active Connection");
}catch(Exception e){
e.printStackTrace();
}
dm=null;
}

private void closeConnection(){
try{
if(con!=null)
con.close();
con=null;
}catch(Exception e){
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception
{
SqlserverConnect myDbTest = new SqlserverConnect();
myDbTest.displayDbProperties();
}
}

如果出现以下运行结果，则运行成功。
Connection Successful!
Driver Information
Driver Name: SQLServer
Driver Version: 2.2.0040

Database Information
Database Name: Microsoft SQL Server
Database Version: Microsoft SQL Server 2000 - 8.00.2039 (Intel X86)
May 3 2005 23:18:38
Copyright (c) 1988-2003 Microsoft Corporation
Personal Edition on Windows NT 5.1 (Build 2600: Service Pack 2)

Avalilable Catalogs
catalog: db_library
catalog: master
catalog: msdb
catalog: Northwind
catalog: pubs
catalog: tempdb

1.2.4. 测试Struts

1． 在Lomboz里新建一个Dynamic Web Project。

2． 在Project Facets中勾选Struts，其他步骤按照提示选择即可。

3． 建立以下类：
GetParameterForm：
package cn.ac.ict;
import org.apache.struts.action.ActionForm;

public class GetParameterForm extends ActionForm{
private String valuw="null";
private String pass="null";

public GetParameterForm() {
}
public void setValu(String s) {
valuw = s;
}
public String getValu() {
return valuw;
}
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
}

ShowAction
package cn.ac.ict;

import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.*;
import org.apache.struts.util.*;

public final class ShowAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
Locale locale = getLocale(request);
MessageResources messages = getResources(request);
HttpSession session = request.getSession();
GetParameterForm userform = (GetParameterForm) form;
// if (userform.getValu().equals("success")) {
System.out.println("userform.getValu():"+userform.getValu());
System.out.println("userform.getPass():"+userform.getPass());
if (userform.getValu().equals("ben")& userform.getPass().equals("grace")) {
return (mapping.findForward("success"));
} else {
return (mapping.findForward("fail"));
}
}
}

4． 建立以下JSP文件
index.jsp
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.util.*,java.sql.*,java.text.*,java.io.*"%>

<form name="form1" method="post" action="showinput.do">
输入ben和grace将返回到"success"页面，否则返回到"fail"页面<br>
<br>
input:<input type="text" name="valu"><br>
password:<input type="text" name="pass">
<input type="submit"
value="submit"></form>
<br>
<a href="success.do">success</a>
<br>
<a href="fail.do">fail</a>

success.jsp
<%@ page contentType="text/html;charset=gb2312"%>

success!

fail.jsp
<%@ page contentType="text/html;charset=gb2312"%>

fail!

5． 配置Struts-config.xml
<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<!-- ========== Form Bean Definitions =================================== -->
<form-beans>
<form-bean name="GetParameterForm" type="cn.ac.ict.GetParameterForm"/>
</form-beans>

<!-- ========== Global Forward Definitions ============================== -->
<global-forwards>
<forward name="success" path="/success.do"/>
<forward name="fail" path="/fail.do"/>
</global-forwards>

<!-- ========== Action Mapping Definitions ============================== -->
<action-mappings>
<action path="/showinput"
type="cn.ac.ict.ShowAction"
name="GetParameterForm"
scope="request"
input="/index.jsp" >
<forward
name="success"
path="/success.jsp"/>
<forward
name="fail"
path="/fail.jsp"/>
</action>
</action-mappings>

</struts-config>

6． 配置Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" 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"> <display-name>
firstStruts</display-name>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>
org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
7． 运行项目

8． 如果出现以下画面输入用户名和密码后转到success画面则为成功

1.2.5. Web连接数据库

1． 建立一个Web项目如1.2.4“测试Struts”中所示
2． 在Tomcat设置数据库数据源。
运行Web项目后Lomboz会在package Explorer中加入“Server”文件夹，打开该文件夹中的Server.xml，在Web项目的Context参数中加入Datasource的设置。

<Context docBase="jdbcsample" path="/jdbcsample" reloadable="true"
source="org.eclipse.jst.j2ee.server:jdbcsample">
<Resource name="jdbc/libdatasource" auth="Container" type="javax.sql.DataSource" driverClassName="com.microsoft.jdbc.sqlserver.SQLServerDriver" url="jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=db_library"
username="libuser" password="libuser" maxActive="20" maxIdle="10"
maxWait="-1" />
</Context>
3． 建立以下类
TomcatConnectionAction
package cn;
import com.microsoft.jdbc.sqlserver.SQLServerDriver;
import org.apache.commons.dbcp.BasicDataSourceFactory;
import javax.servlet.http.*;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import org.apache.struts.action.*;
import java.sql.*;
import java.util.ArrayList;
import javax.sql.DataSource;

public class TomcatConnectionAction extends Action {
private DataSource datasource;
protected Connection conn = null;
public ArrayList customerList = new ArrayList();
private final static String SUCCESS = "success";
private final static String FAIL = "fail";

public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

java.sql.Connection myConnection;
try {
String JNDIName = "java:comp/env/jdbc/libdatasource";
InitialContext ctx = new InitialContext();
Object objref = ctx.lookup(JNDIName);
datasource = (DataSource) PortableRemoteObject.narrow(objref,
DataSource.class);
conn = datasource.getConnection();
}catch(Exception ex){ex.printStackTrace();return (mapping.findForward(FAIL));}
return (mapping.findForward(SUCCESS));
}
}

4． 建立以下JSP文件
index.jsp
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.util.*,java.sql.*,java.text.*,java.io.*"%>

<br>
<a href="connect_tomcat.do">connect database by Tomcat</a>

5． 配置Struts-config.xml
<?xml version="1.0" encoding="ISO-8859-1" ?>
<struts-config>
<action-mappings>
<action path="/connect_tomcat" type="cn.TomcatConnectionAction"
scope="request" input="/index.jsp">
<forward name="success" path="/success.jsp" />
<forward name="fail" path="/fail.jsp" />
</action>
</action-mappings>
</struts-config>

6． 配置Web.xml如1.2.4的配置一样
7． 运行Web项目，如果点击“connect database by Tomcat”连接后转向success则成功