Java/Servlets/Include
Содержание
Servlet include
<source lang="java">
import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class IncludeServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Include Servlet</title>");
out.println("</head>");
out.println("<body>");
out.println("Welcome To Our Universe
"); out.println("Imagine the rest of the page here.
");
//Include the copyright information
RequestDispatcher dispatcher = request.getRequestDispatcher("/CopyRight");
dispatcher.include(request, response);
out.println("</body>");
out.println("</html>");
out.close();
}
}
</source>
Servlet Multiple Include
<source lang="java">
import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class MultipleInclude extends HttpServlet {
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
java.io.IOException {
response.setContentType("text/html");
java.io.PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Multiple Includes</title>");
out.println("</head>");
out.println("<body>");
out.println("Hello from Level 1
"); out.println("This text is displayed at Level 1.");
RequestDispatcher dispatcher = request.getRequestDispatcher("/Level4");
dispatcher.include(request, response);
out.println("</body>");
out.println("</html>");
out.close();
}
} // here is another servlet import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class Level4 extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, java.io.IOException {
java.io.PrintWriter out = response.getWriter();
out.println("Hello from another doGet
"); out.println("Hello from another doGet.");
}
} /*
<servlet>
<servlet-name>MultipleInclude</servlet-name>
<servlet-class>MultipleInclude</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MultipleInclude</servlet-name>
<url-pattern>/MultipleInclude</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Level4</servlet-name>
<servlet-class>Level4</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Level4</servlet-name>
<url-pattern>/Level4</url-pattern>
</servlet-mapping>
- /
</source>
