Sunil Chandurkar wrote:
> Hello All..
>
> Though i'm working on servlets from couple of months
> i'm getting confused between doGet and doPost whenever i'm trying to do
>Applet-Servlet Communication.
>
> My Problem is :
>
> On particular event my Applet is sending one string to Servlet and inresponse
>servlet is sending one Vector to applet.
> If i will keep on performing Applet - Servlet communication,hardly i can perform 2-3
>transactions.
> On 4th request from applet to servlet .. my browser gets hung.
> I have written entire code in doPost of servlet.
>
> I am very much confused where shall i write the code on servlet side in doGet or in
>doPost.. and one more thing.. i have tried by writing code into doGet also.
>
> I have already visited lots of sites from where i could get this solution.. and
>according to their samples. i did everything. but still problem is there only.
>
> If anybody is having perfect solution on this Applet-Servlet communication please
>let me know...
>
> Regards
> Sunil
> [...]
haha :-) I think I know a little about it, I find it is interesting :-) but I am
not sure, the following is just as a reference:
* I use:
- standalone Java Appllication: JDK1.3 + winnt40
- Servlet: jakarta-tomcat-4.0-b1(standalone, JDK1.3, winnt40)
* I guess Applet-Servlet communication is similar with Application-Servlet
communication.
* normally, it is Appllication-side who starts one Appllication-Servlet communication:
* client First Read style:
in Appllication-side, if we first Read something from Servlet, then no matter
we will continue to Write something to Servlet or not, doGet will be
invoked
* client First Write style:
in Appllication side, if we first Write something to Servlet, then:
- if we don't continue to Read somwthing from Servlet, then neither doGet
now doPost will be invoked :-)
- if we continue to Read something from Servlet, then doPost will be invoked :-)
- if we want to Write something, we need: uc.setDoOutput(true), otherwise I
got a java.net.ProtocalException
*
- if we want to Read something, we need: uc.setDoInput(true), otherwise I
got a java.net.ProtocalException
- if we want to Write something, we need: uc.setDoOutput(true), otherwise I
got a java.net.ProtocalException
* we can use both URLConnection and HttpURLConnection. but I remember
HttpURLConnection is not in NN4.7 and IE4.x(perhaps I remember wrong)
Bo
Mar.28, 2001
