André Warnier wrote:
qingtao peng wrote:
I have built the apache-tomcat-7.0.32 server on my computer.My
operating system is Windows7.I have written an Applet and compiled it
.The source code of the Applet is as follow :
...
This compiled Applet has been embedded in a HTML file named with
DbApplet.htm.
The source code of the Servlet is as follow :
...
I have started the apache-tomcat-7.0.32 server ,then I have typed the
network address of DbApplet.htm in the address field of the browser.I
click on the button in the Applet,but receive
java.io.FileNotFoundException error.The error is
java.io.FileNotFoundException:
http://localhost:8080/Servlet/DbServlet.Where do I place DbServlet ?
That is, which directory do I place under in apache-tomcat-7.0.32.
What is the network address of this Servlet .I thank for helps.
Hi.
Simplify the problem.
1) In your HTML page, there is the tag that retrieves the applet from
the server. What is the URL from which the applet is being retrieved ?
2) if it is like "/Servlet/DbServlet", then the .jar file in which your
compiled applet is embedded, should be in the directory
"(tomcat-install-dir)/webapps/Servlet/".
3) if it is indeed a .jar file, then it should be the file
"(tomcat-install-dir)/webapps/Servlet/DbServlet.jar"
and you should be able to retrieve it if you enter the following URL in
your browser's URL bar : "http://localhost:8080/Servlet/DbServlet.jar";
(The browser will probably ask you where to save that file, it will not
run it in this case).
Note: when the browser has retrieved your HTML page from the server, it
sees the applet tag in the HTML page. It then makes another request to
the server, to retrieve the applet from the server in exactly the same
way as if this was for example an image from an <img> tag.
It is only after it has retrieved the applet, that the browser will
activate its Java run-time machine, to actually run the applet.
-------
Sorry, it looks like I misunderstood the issue above.
From what you write, it seems that the applet is being loaded by the browser - since you
can click on "it's button".
So you are getting a "java.io.FileNotFoundException error". Where do you get that error
message ? in the browser page returned by the server when you click on the applet button ?
If so, then it is your servlet (on the server side) that is getting that error.
And then /you/ have to find out why it is getting that error.
There would be nothing wrong with Tomcat. It is your application which makes
the error happen.
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