HttpServletRequest cannot be resolved can you help?

Question

Hi all I have imported the following import javax.servlet.http.*;

I want to get the preferred language Browser

HttpServletRequest request = ServletActionContext.getRequest();
Locale userPreferredLocale = request.getLocale();

I get an error HttpServletRequest cannot be resolved.

Can somebody help me and give me a step by step instruction if possible. I am not a java developer but a .net one and just fixing a bug.

thanks a lot

Answer 1

It looks like you're using Struts2. There are two ways to access the HttpServletRequest object

1. Change your Struts action to implement the ServletRequestAware interface - this is the preferred method
2. The method you have shown above

Given that (1) is the preferred method, I suggest you try this instead, more details here.

Update: Based on the comment you've added it seems like you're not actually using Struts. You're using .Net on the server side and a Java Applet on the client-side. If that is the case, there's no point in trying to use the Servlet or Struts2 APIs, as they are server-side only

Given that you already know how to get the user's preferred language on the .Net server-side, I don't understand why you don't just do that?

Answer 2

The javax.servlet.http package is part of the servlet API. The relevant jars can be found in JEE containers (such as Sun's Glassfish) or stand-alone servlet containers (like Apache's Tomcat). Essentially, these are Java web servers.

In order to compile code that depends on it, you will have to add the servlet library to your dependencies. Exactly how that is done depends on the tools you are using.

Are you building a web application? (Is the expected output a .war or .ear file?) Does the source come bundled with a build.xml (probably an Ant build), any pom.xml files (probably a Maven build) or any .project/.classpath files (probably an Eclipse project)?

---

The scenario is this. Asp.net 1.1 having a javaapplet on a page calling a webservice. Javaapplet should detect the user preferred language in .net you do HttpContext.Current.Request.UserLanguages[0] so i asked and apparently in java the equivalent is request.getLocale();

OK, ignore what I said above. To get the Locale in an Applet, I imagine you would just use:

Locale userLocale = Locale.getDefault();

On a Java web server, you would use request.getLocale() to pick up the user's locale from the HTTP request. Applets run on the client.

Answer 3

When you compile the source you will need to add the jar containing the servlet class to the classpath. One way to do this is with the -cp flag:

javac -classpath lib/servlet.jar MyClass.java

Answer 4

To get the Locale inside an Applet, use the inherited getLocale() method.

Example:

public class MyApplet extends Applet {
    public void doStuff() {
        Locale locale = getLocale();
        // Now you can work with that.
    }
}