- Web programming. JSP
Содержание
- 2. CLIENT-SERVER Client Server Protocol
- 3. CLIENT-SERVER Protocol is HTTP Client sends HTTP request Server generates HTTP response Data are returned as
- 4. HTTP Hypertext transfer protocol Resources are identified by URI or URL Command consists of header and
- 5. HTTP REQUEST
- 6. HTTP REQUEST
- 7. HTTP REQUEST
- 8. HTTP RESPONSE
- 9. HTTP RESPONSE My First Heading My first paragraph.
- 10. WEB SERVER Apache Tomcat Jetty GlassFish WebLogic WebSphere WildFly
- 11. WEB SERVER
- 12. HTML
- 13. WEB SERVER Java servlets Java server pages(JSP) Web sockets
- 14. JAVA SERVLET Java component that runs inside web server Web server loads and destroys servlets Receives
- 15. JAVA SERVLET
- 16. SERVLET CONTAINER Interacts with Java servlets Manages lifecycle of the servlet Maps URL to particular servlets
- 17. APACHE TOMCAT Developed by Apache Software Foundation Includes web server(Coyote), servlet container(Catalina) and JSP engine(Jasper) Requires
- 18. JSP Adds dynamic content to web pages Designed in 1999 Introduced JSTL(JSP standard tag library) Introduced
- 19. JSP
- 20. JSP Client sends HTTP request to the server Server recognized HTTP request and forwards to to
- 21. SAMPLE JSP Dynamic HTML Hello World!
- 22. SAMPLE JSP out.println(" Your IP address is " + request.getRemoteAddr()); String userAgent = request.getHeader("user-agent"); out.println(“ ”
- 23. JAVA BEANS Plain Java objects No-argument public constructors Setter and getter for each field May receive
- 24. JAVA BEANS public class Product implements Serializable { private int id; public Product() {} public int
- 25. JSP ARCHITECTURE
- 26. MVC
- 27. MVC Model contains application data and business rules View contains representation of the data Controller sends
- 28. JSP ARCHITECTURE
- 29. JSP VARIABLES application config out pageContext request response session
- 30. HTTPSERVLETREQUEST String getParameter(String name) Enumeration getParameterNames() String[] getParameterValues(String name) String getServerName() String getRemoteAddr() String getHeader(String name);
- 31. HTTPSERVLETRESPONSE encodeURL(String) sendRedirect(String) getHeader(String) getContentType() getOutputStream() getCharacterEncoding()
- 32. HTTP SESSION Provides way to identify a user who requests web server Identifies user Has time
- 33. HTTPSESSION getAttribute(String) getId() getServletContext() invalidate() removeAttribute(String) setAttribute(String, Object)
- 34. DIRECTIVES Provides web server with information it needs to handle JSP request Executes before compilation page
- 35. PAGE DIRECTIVE
- 36. INCLUDE DIRECTIVE
- 37. ACTIONS Executing while processing HTTP request forward include param useBean getProperty text setProperty
- 38. FORWARD ACTION
- 39. INCLUDE ACTION
- 40. USEBEAN ACTION class=“org.hillel.it.service.ServiceImpl“ /> Product product = service.getProduct(id) %>
- 42. Скачать презентацию
CLIENT-SERVER
Client
Server
Protocol
CLIENT-SERVER
Client
Server
Protocol
CLIENT-SERVER
Protocol is HTTP
Client sends HTTP request
Server generates HTTP response
Data are returned
CLIENT-SERVER
Protocol is HTTP
Client sends HTTP request
Server generates HTTP response
Data are returned
HTTP
Hypertext transfer protocol
Resources are identified by URI or URL
Command consists of
HTTP
Hypertext transfer protocol
Resources are identified by URI or URL
Command consists of
HTTP REQUEST
HTTP REQUEST
HTTP REQUEST
HTTP REQUEST
HTTP REQUEST
HTTP REQUEST
HTTP RESPONSE
HTTP RESPONSE
HTTP RESPONSE
My First Heading
My first paragraph.
HTTP RESPONSE
My First Heading
My first paragraph.
WEB SERVER
Apache Tomcat
Jetty
GlassFish
WebLogic
WebSphere
WildFly
WEB SERVER
Apache Tomcat
Jetty
GlassFish
WebLogic
WebSphere
WildFly
WEB SERVER
WEB SERVER
HTML
HTML
WEB SERVER
Java servlets
Java server pages(JSP)
Web sockets
WEB SERVER
Java servlets
Java server pages(JSP)
Web sockets
JAVA SERVLET
Java component that runs inside web server
Web server loads and
JAVA SERVLET
Java component that runs inside web server
Web server loads and
JAVA SERVLET
JAVA SERVLET
SERVLET CONTAINER
Interacts with Java servlets
Manages lifecycle of the servlet
Maps URL to
SERVLET CONTAINER
Interacts with Java servlets
Manages lifecycle of the servlet
Maps URL to
APACHE TOMCAT
Developed by Apache Software Foundation
Includes web server(Coyote), servlet container(Catalina) and
APACHE TOMCAT
Developed by Apache Software Foundation
Includes web server(Coyote), servlet container(Catalina) and
JSP
Adds dynamic content to web pages
Designed in 1999
Introduced JSTL(JSP standard tag
JSP
Adds dynamic content to web pages
Designed in 1999
Introduced JSTL(JSP standard tag
JSP
JSP
JSP
Client sends HTTP request to the server
Server recognized HTTP request and
JSP
Client sends HTTP request to the server
Server recognized HTTP request and
SAMPLE JSP
<%@page language="java" contentType="text/html"%>
Dynamic HTML
Hello World!
SAMPLE JSP
<%@page language="java" contentType="text/html"%>
Hello World!
SAMPLE JSP
<%
out.println("
Your IP address is " + request.getRemoteAddr());
String userAgent = request.getHeader("user-agent");
out.println(“
”
SAMPLE JSP
<%
out.println("
Your IP address is " + request.getRemoteAddr());
String userAgent = request.getHeader("user-agent");
out.println(“
”
JAVA BEANS
Plain Java objects
No-argument public constructors
Setter and getter for each field
May
JAVA BEANS
Plain Java objects
No-argument public constructors
Setter and getter for each field
May
JAVA BEANS
public class Product implements Serializable {
private int id;
public
JAVA BEANS
public class Product implements Serializable {
private int id;
public
JSP ARCHITECTURE
JSP ARCHITECTURE
MVC
MVC
MVC
Model contains application data and business rules
View contains representation of the
MVC
Model contains application data and business rules
View contains representation of the
JSP ARCHITECTURE
JSP ARCHITECTURE
JSP VARIABLES
application
config
out
pageContext
request
response
session
JSP VARIABLES
application
config
out
pageContext
request
response
session
![HTTPSERVLETREQUEST String getParameter(String name) Enumeration getParameterNames() String[] getParameterValues(String name) String](/_ipx/f_webp&q_80&fit_contain&s_1440x1080/imagesDir/jpg/9575/slide-29.jpg)
HTTPSERVLETREQUEST
String getParameter(String name)
Enumeration getParameterNames()
String[] getParameterValues(String name)
String getServerName()
String getRemoteAddr()
String getHeader(String name);
String getMethod();
String
HTTPSERVLETREQUEST
String getParameter(String name)
Enumeration
String[] getParameterValues(String name)
String getServerName()
String getRemoteAddr()
String getHeader(String name);
String getMethod();
String
HTTPSERVLETRESPONSE
encodeURL(String)
sendRedirect(String)
getHeader(String)
getContentType()
getOutputStream()
getCharacterEncoding()
HTTPSERVLETRESPONSE
encodeURL(String)
sendRedirect(String)
getHeader(String)
getContentType()
getOutputStream()
getCharacterEncoding()
HTTP SESSION
Provides way to identify a user who requests web server
Identifies
HTTP SESSION
Provides way to identify a user who requests web server
Identifies
HTTPSESSION
getAttribute(String)
getId()
getServletContext()
invalidate()
removeAttribute(String)
setAttribute(String, Object)
HTTPSESSION
getAttribute(String)
getId()
getServletContext()
invalidate()
removeAttribute(String)
setAttribute(String, Object)
DIRECTIVES
Provides web server with information it needs to handle JSP request
Executes
DIRECTIVES
Provides web server with information it needs to handle JSP request
Executes
PAGE DIRECTIVE
<%@page language="java" contentType="text/html"%>
<%@page import="java.util.ArrayList"%>
<%@page import="java.util.*“ %>
<%@page import=“org.hillel.it.model.Product, org.hillel.it.model.Order“ %>
PAGE DIRECTIVE
<%@page language="java" contentType="text/html"%>
<%@page import="java.util.ArrayList"%>
<%@page import="java.util.*“ %>
<%@page import=“org.hillel.it.model.Product, org.hillel.it.model.Order“ %>
INCLUDE DIRECTIVE
<%@include file=“header.jsp“ %>
INCLUDE DIRECTIVE
<%@include file=“header.jsp“ %>
ACTIONS
Executing while processing HTTP request
forward
include
param
useBean
getProperty
text
setProperty
ACTIONS
Executing while processing HTTP request
forward
include
param
useBean
getProperty
text
setProperty
FORWARD ACTION
FORWARD ACTION
INCLUDE ACTION
INCLUDE ACTION
USEBEAN ACTION
service.getProduct(id) %>
USEBEAN ACTION
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