How do I call a method using queryparam in java?

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Javascript

Java

REST

servlet

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I have a client-server web app using Java and JavaScript. I would like to call a path "delete" from a method deleteBook using queryParam. I've searched the Internet, but I'm not sure how to do this. The called method was supposed to delete a book from the database, but it doesn't. The problem lays in a method deleteBook (I have difficulties with calling a method).

What I have tried:

I came up with the following code. Would you please correct this one line of code for me?

public void deleteBook(Integer bookID) 
    {
       root.queryParam("delete","").queryParam("deleted_book_id",bookID).request().get();
    }

And here's the called method:

@GET
    @Path("delete")
    @Consumes(MediaType.APPLICATION_JSON)
    public void deleteBook(@DefaultValue("-1") @QueryParam("deleted_book_id") Integer deletedBookID)
    {
      getBookContext().removeBook(deletedBookID);
    }