I successfully published the web service in ubunbu 8 (remote) and vista64 (local) and invoked them for testing.

python 2.5, zsi 2.1 (other zsi version may be different)

step1. create helloDBfetch.wsdl, it is almost as same as hello wold.

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://www.example.org/helloDBfetch/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="helloDBfetch" targetNamespace="http://www.example.org/helloDBfetch/">
  <wsdl:message name="helloDbfetchRequest">
    <wsdl:part name="fetchDataReturn" type="xsd:string"/>
  </wsdl:message>
  <wsdl:message name="helloDbfetchResponse">
    <wsdl:part name="helloDbfetchResponse" type="xsd:string"/>
  </wsdl:message>
  <wsdl:portType name="helloDBfetch">
    <wsdl:operation name="helloDbfetch">
      <wsdl:input message="tns:helloDbfetchRequest"/>
      <wsdl:output message="tns:helloDbfetchResponse"/>
    </wsdl:operation>
  </wsdl:portType>
  <wsdl:binding name="helloDBfetchSOAP" type="tns:helloDBfetch">
    <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
    <wsdl:operation name="helloDbfetch">
      <soap:operation soapAction="http://www.example.org/helloDBfetch/NewOperation"/>
      <wsdl:input>
        <soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://www.example.org/helloDBfetch/" use="encoded"/>
      </wsdl:input>
      <wsdl:output>
        <soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="http://www.example.org/helloDBfetch/" use="encoded"/>
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>
  <wsdl:service name="helloDBfetch">
    <wsdl:port binding="tns:helloDBfetchSOAP" name="helloDBfetchSOAP">
      <soap:address location="http://localhost:8080/"/>
    </wsdl:port>
  </wsdl:service>
</wsdl:definitions>

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step2. run wsdl2py helloDBfetch.wsdl, generated 3 .py files (helloDBfetch_client.py, helloDBfetch_server.py, helloDBfetch_types.py), I put them under a folder called helloDBfetch, and also create a empty __init__.py in the folder to make it a package.

step3. create service implementation code: helloDBimpl.py

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# make sure the path to helloDBfetch_server.py is correct, and import it

from helloDBfetch.helloDBfetch_server import * 

from ZSI.ServiceContainer import AsServer # have to import this
# class name can be anything, but has to be sub class of helloDBfetch, which is defined in helloDBfetch_server.py

class myhelloDBfetchServices(helloDBfetch): 
    # Make WSDL available for HTTP GET
    _wsdl = "".join(open("helloDBfetch.wsdl").readlines())
    def soap_helloDbfetch(self,ps, **kw): #rewrite the soap_helloDbfetch method of helloDBfetch of helloDBfetch_server.py
        try:#use the method from class helloDBfetch in helloDBfetch_server.py
            request, response = helloDBfetch.soap_helloDbfetch(self, ps, **kw)
#_helloDbfetchResponse and _fetchDataReturn are defined in the helloDBfetch_server.py  
         response._helloDbfetchResponse="Hello "+request._fetchDataReturn
        except Exception, e:
            print str(e)
        return request, response 
--------------------------------------------------------------------------

step4. create server code: helloDBserver.py

----------------------------------------------------------------------------

from ZSI.ServiceContainer import AsServer
from helloDBimpl import myhelloDBfetchServices #have to import the service class you defined
from ZSI import dispatch
if __name__ == "__main__":
    port = 8080
#service name has to be as same as the class name in helloDBimpl.py
    AsServer(port,(myhelloDBfetchServices('helloDBfetch'),))

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testing: local in vista64

run the helloDBserver.py

you can open a browser check the wsdl file: http://localhost:8080/helloDBfetch?wsdl

to invoke this web service, I use SoapUI (a free GUI service client, you can download it for free: http://www.soapui.org/), then just open the soapUI and create a new project, type in the project name and the URL of the wsdl file, it will generate a sample request for you, double click the sample request, in the popup window you will see the soap message, just replace the ? with any string you want, e.g. lalal, click the send arrow button, you will see the returned string is “hello lalal” inside the soap message.

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testing: remote in ubuntu 8

upload all files in your ubuntu machine: helloDBfetch.wsdl, helloDBimpl.py, helloDBserver.py and the whole fold: helloDBfetch

run helloDBserver.py in ubuntu 8

the URL of the wsdl is : http://yourUbuntuComputerIP:8080/helloDBfetch?wsdl

still use SoapUI to invoke it, but the URL should changed to the new one, another thing is the generated wsdl file in the binding/location=…., it give the machine name, other than the real ip, in localhost, it does not matter, but remotely invoke the web service, you have to change the endpoint of the request in soapUI to the real ip of ubuntu machine other than the machine name, otherwise soapUi can not find your ubuntu machine. I do not know how to make it automatically use ip in the wsdl, so I have to manually change it when I use soapUI invoke it.

+++++++++++++++++++++++++++++++++++

one wired thing I find is, in the helloDBimpl.py, the last line of code

return response | this works in the ubuntu 8

return request, response | this works in vista64

otherwise it returns error:

#return response, in vista, error: 'helloDbfetchResponse' object is not iterable
#return request, response, in ubuntu, error: type object tuple has no typecode

安装双操作系统win和ubuntu后，如果从ubuntu登入，ubuntu能自动识别WIN的分区。但是Ubuntu默认的locale是UTF8, 所以WIN分区里的文件名全是显示问号或者是其它乱码。要想正确显示，就要修改一下/etc/fstab文件。在hda1,hda5,hda6等这几行里的 Default 后边加上‘,utf8′.不要将引号也加上啊，呵呵。重启机器看一下，应 该能正确显示了。

用gedit打开在windows导出来的IE收藏夹bookmark.htm，另存为UTF-8编码即可，然后用firefox书签导入功能就没有问题了！

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用firefox打开win导出的ie收藏夹bookmark.htm，然后“页面另存为”，然后用firefox书签导入功能就可以了！
原因很简单，firefox另存的时候自动把编码换为utf-8了，所以成功

Gedit中文显示设置
在Applications菜单上点右键，选择Edit Menu.在Main Menu的对话框中勾选System Tools－－Configuration Editor，并从Applications菜单中开启。
依次开启 /apps/gedit-2/preferences/encodings/双击右侧auto_detected,在弹出对话框中点选Add，添加Values值为GB2312,确定后选中，点选Up按钮将其移至第一位。

上面这个方法需要将GBK置顶才能用gedit带开gbk格式文档，但是这样会把其他格式的文档处理成乱码，一个比较友好的方法是，在打开文件时，在Charater Coding下拉菜单里选择"Add or Remove..."，然后添加GBK或GB18030

转贴：

http://jakeyoon.com/2008/11/19/enable-vino-vnc-server-for-login-manager-gdm-in-ubuntu/

ubuntu 8.04 comes with vnc remote desktop, but user has to login then the vnc service starts. if anyone remotely reboots then remote desktop doesn’t work anymore. Here is the way to use remote desktop (ubuntu 8 built in vnc) without user login.

不需要用户登录就可以使用ubuntu8自带的远程桌面程序vnc，避免了每次远程重启机子后远程桌面程序vnc无法使用的情况。

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Enable Vino VNC Server for Login Manager (GDM) in Ubuntu

I have been a big fan for Remote Desktop in Windows XP/Server/Vista platform because you get a native display resolution of your client monitor and file/printer share is supported; however, for Windows 2000 or linux distributions, I do not have the option.  There is an alternate option for Windows 2000 or linux distribution which is VNC.

For Windows platform, it looks like RealVNC and UltraVNC are the most popular ones while linux has many different VNC servers.

In this example, I would like to introduce a way to enable a built-in Vino VNC server for Ubuntu distribution.

1. After logging into Ubuntu, open up Remote Desktop option (System -> Preferences -> Remote Desktop)

2. Check “Allow other users to view your desktop” and “Allow other users to control your desktop” - this is to let others, others would be me in my case, take control of this machine

3. Uncheck “Ask you for confirmation” - when VNC is connected, VNC server will ask for a confirmation to local user.  In my case, this machine will not have a local logged user since it does not have a monitor

4. If possible, assign a password - Having a password should be better than not having one even though VNC still lacks encryption and strong authentication

At this point, VNC server is just enabled with some settings; however, Vino server does not start until a user logs in.  This means that Vino server is not running at User Login screen - where a user types username and password.  In my case, this was not feasible since the machine will not have a monitor (nor keyboard/mouse).

5. Edit /etc/gdm/Init/Default - this gets run when gdm starts (at Login Screen)

emacs /etc/gdm/Init/Default

6. Add the following line right before exit 0 at the end of the file - Vino server runs when gdm starts up

/usr/lib/vino/vino-server &

Vino server starts up when gdm starts up; however, when username and password is typed in, gdm kill this vino-server meaning VNC connection will be terminated.  To prevent this,

7. Edit /etc/gdm/gdm.conf with your favorite text editor

emacs /etc/gdm/gdm.conf

8. Find a commented option KillInitClients=true.  Uncomment it and change it to false and save it. - this prevents vino-server from being killed right after login

KillInitClients=false

Now, you should be able to connect to the machine using VNC

转贴：http://www.alterego7.com/2008/04/getting-projectors-to-work-in-ubuntu.html

1. Connect the projector to your laptop.
2. Do this in command line.

sudo dpkg-reconfigure xserver-xorg

3. Just press Enter through every screen.
4. Restart X for the changes to take effect by pressing CTRL + ALT + BACKSPACE.
5. Log in again as you always do.
6. And finally, the projector will automagically display your Ubuntu desktop and you can show off your desktop effects to your co-workers.

使用 Google Web Toolkit、Apache Derby 和 Eclipse 构建 Ajax 应用程序

http://www.ibm.com/developerworks/cn/opensource/os-ad-gwt/