servlettojsp.java

北大Java 语言程序设计 ppt课件及源码

/*	范例名称：JSP-Servlet页面调用
 * 	源文件名称：servletToJSP.java / hello.jsp / FromJspToServlet.jsp
 *	要  点：RequestDispatcher接口实例的取得 / forward()方法的参数
 */
 
import javax.servlet.*;
import javax.servlet.http.*;

public class ServletToJsp extends HttpServlet {

    public void doGet (HttpServletRequest request,
		       HttpServletResponse response) {

	try {
	    // Set the attribute and Forward to hello.jsp
	    request.setAttribute ("servletName", "servletToJsp");//此方法实用性很强

	    System.out.println("here is in the servlet.");
	    String uri="/hello.jsp";
		RequestDispatcher rd=getServletConfig().getServletContext().getRequestDispatcher(uri);
		rd.forward(request, response);
	} catch (Exception ex) {
	    ex.printStackTrace ();
	}
    }
}