При компиляции в ide NetBeens 6.7 следующего исходника сервлета index.java | Код |
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author initmax
*/
public class index extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
/* TODO output your page here
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet index</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet index at " + request.getContextPath () + "</h1>");
out.println("</body>");
out.println("</html>");
*/
} finally {
out.close();
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
getServletContext().getRequestDispatcher("/hello.jsp").forward(request, response);
// processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
|
И исходника JSP | Код |
<html>
<head>
<title>
Hello World Sample
</title>
</head>
<body>
<h1>
<%
String name = request.getParameter("name");
if (name == null || name.length() == 0) {
%>
Hello, world !
<% } else {
%>
Hello, world ! I'm <%= name%>
<%
}
%>
</h1>
</body>
</html>
|
получаю в каталоге Tomcat 6.0\work\Catalina\localhost\JDBCServlet\org\apache\jsp hello_jsp.class hello_jsp.java index_jsp.class index_jsp.java если просмотреть hello_jsp.java получим такой вот листинг | Код |
package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
public final class hello_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
private static final JspFactory _jspxFactory = JspFactory.getDefaultFactory();
private static java.util.List _jspx_dependants;
private javax.el.ExpressionFactory _el_expressionfactory;
private org.apache.AnnotationProcessor _jsp_annotationprocessor;
public Object getDependants() {
return _jspx_dependants;
}
public void _jspInit() {
_el_expressionfactory = _jspxFactory.getJspApplicationContext(getServletConfig().getServletContext()).getExpressionFactory();
_jsp_annotationprocessor = (org.apache.AnnotationProcessor) getServletConfig().getServletContext().getAttribute(org.apache.AnnotationProcessor.class.getName());
}
public void _jspDestroy() {
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
PageContext _jspx_page_context = null;
try {
response.setContentType("text/html");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write("<html>\n");
out.write(" <head>\n");
out.write(" <title>\n");
out.write(" Hello World Sample\n");
out.write(" </title>\n");
out.write(" </head>\n");
out.write("\n");
out.write(" <body>\n");
out.write(" <h1>\n");
out.write(" ");
String name = request.getParameter("name");
if (name == null || name.length() == 0) {
out.write("\n");
out.write(" Hello, world !\n");
out.write(" ");
} else {
out.write("\n");
out.write(" Hello, world ! I'm ");
out.print( name);
out.write("\n");
out.write(" ");
}
out.write("\n");
out.write(" </h1>\n");
out.write(" </body>\n");
out.write("</html>\n");
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
try { out.clearBuffer(); } catch (java.io.IOException e) {}
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
_jspxFactory.releasePageContext(_jspx_page_context);
}
}
}
|
Получается компилятор слепил во едино сервлет index.java и JSP hello.jsp а так же добавил переменные private static final JspFactory _jspxFactory = JspFactory.getDefaultFactory(); private static java.util.List _jspx_dependants; private javax.el.ExpressionFactory _el_expressionfactory; private org.apache.AnnotationProcessor _jsp_annotationprocessor; Вопрос в том что за самостоятельность такая? это ИДЕ NetBeans при компиляции постарался? от куда были взяты не писаные мной переменные.... Другими словами можно ли расписать процесс сборки полученного класса. И пару слов о трансляции в байт-код тоже хотелось бы услышать  |
Я такого в коде не писал... Сборка листинга с несколькольких сервлет 
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