Is the $ sign not recognized by Rhino Script Engine?

Question

I'm trying to call a javascript from my java class. Please find below my java code:

    File file = new File(".....js");
ScriptEngineManager factory = new ScriptEngineManager();
 // create a JavaScript engine
                                    ScriptEngine engine = factory.getEngineByExtension("js");
                                    engine.put("engine", engine);
                                    // evaluate JavaScript code from String
                                    try{
                                        engine.eval(new java.io.FileReader(file));
                                    } catch (FileNotFoundException e) {
                                        // TODO Auto-generated catch block
                                        e.printStackTrace();

                                    } catch (ScriptException e) {
                                        // TODO Auto-generated catch block
                                        e.printStackTrace();
                                    }

My javascript contains a dollar sign '$' ... So, I'm getting this error once I run my program:

javax.script.ScriptException: sun.org.mozilla.javascript.internal.EcmaError: ReferenceError: "$" is not defined. (<Unknown source>#4) in <Unknown source> at line number 4

Is '$' not defined as part of the javascript code? Does the Script engine don't recognize it? Thanks for any help.

This is my updated script:

    <script type="text/javascript" src="scripts/jquery.js"></script>;
<script type="text/javascript" src="scripts/jquery-ui.js"></script>;
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.10.1.min.js">

$.ajax({
                              type: 'POST',
                              url: "../ManageChannel",
                              data: "_country="+country+"&_featured="+featured+"&_webviewLink="+webviewLink+"&_name="+locationName,
                             success:function(data)
                             {
                                 if (data==2)

                                alert("RSS link is required");

                            else{
                                alert("Channel is successfully created!");
                                filePath=[];
                                window.location.href=window.location.href;


                            }

                                }});

Answer 1

Your example javascript looks like jquery code. Maybe you just need to import the jquery library ...

For how to deal with XMLHttpRequest in Rhino, see this Q&A: XMLHttpRequest in Rhino?.

As Joachim points out, jquery, the DOM APIs and XMLHttpRequest are not part of the ECMAScript specification.