The Cookie class in Java represents HTTP cookies and allows servlets to create, read, and modify cookies. Cookies can store small amounts of user data on the client side and are commonly used for session tracking or storing user preferences. The Cookie class implements methods for getting and setting the name, value, domain, path, expiration, and other properties of a cookie. Servlets can use cookies to pass user-specific data between an HTML form and a servlet.
Connect.Tech- Aqueduct: A server-side framework in Dartstable|kernel
A look at the Dart programming language and its new server-side framework, aqueduct. This talk will introduce the fundamentals of the Dart programming language and the tools and knowledge necessary to immediately get started building web server applications in aqueduct.
Connect.Tech- Aqueduct: A server-side framework in Dartstable|kernel
A look at the Dart programming language and its new server-side framework, aqueduct. This talk will introduce the fundamentals of the Dart programming language and the tools and knowledge necessary to immediately get started building web server applications in aqueduct.
J2EE : Java servlet and its types, environmentjoearunraja2
The server-side extensions are nothing but the technologies that are used to create dynamic Web pages. Actually, to provide the facility of dynamic Web pages, Web pages need a container or Web server. To meet this requirement, independent Web server providers offer some proprietary solutions in the form of APIs (Application Programming Interface).
These APIs allow us to build programs that can run with a Web server. In this case, Java Servlet is also one of the component APIs of Java Platform Enterprise Edition (nowadays known as – ‘Jakarta EE’) which sets standards for creating dynamic Web applications in Java.
Today we all are aware of the need to create dynamic web pages i.e. the ones that can change the site contents according to the time or can generate the content according to the request received by the client. If you like coding in Java, then you will be happy to know that using Java there also exists a way to generate dynamic web pages and that way is Java Servlet. But before we move forward with our topic let’s first understand the need for server-side extensions.
Servlets are the Java programs that run on the Java-enabled web server or application server. They are used to handle the request obtained from the web server, process the request, produce the response, and then send a response back to the web server. Servlet is faster than CGI as it doesn’t involve the creation of a new process for every new request received.
Servlets, as written in Java, are platform independent.
Removes the overhead of creating a new process for each request as Servlet doesn’t run in a separate process. There is only a single instance that handles all requests concurrently. This also saves the memory and allows a Servlet to easily manage the client state.
It is a server-side component, so Servlet inherits the security provided by the Web server.
The API designed for Java Servlet automatically acquires the advantages of the Java platforms such as platform-independent and portability. In addition, it obviously can use the wide range of APIs created on Java platforms such as JDBC to access the database.
Many Web servers that are suitable for personal use or low-traffic websites are offered for free or at extremely cheap costs eg. Java servlet. However, the majority of commercial-grade Web servers are rather expensive, with the notable exception of Apache, which is free.
The Servlet Container
Servlet container, also known as Servlet engine, is an integrated set of objects that provide a run time environment for Java Servlet components. In simple words, it is a system that manages Java Servlet components on top of the Web server to handle the Web client requests.
Services provided by the Servlet container:
Network Services: Loads a Servlet class. The loading may be from a local file system, a remote file system or other network services. The Servlet container provides the network services over which the request and response are sent.
Level Up Your Integration Testing With TestcontainersVMware Tanzu
Traditional approaches to integration testing—using shared, local, or in-memory databases—fall short for today's modern developer.
Developers today are building cloud native distributed microservices and taking advantage of a rich variety of backing services. This explosion of applications and backing services introduces new challenges in creating the necessary environments for integration testing. To be useful and effective, these environments must be easy to create and they must resemble production as closely as possible. New solutions are needed to make this need a reality.
Enter Testcontainers!
Testcontainers is a Java library that supports JUnit tests and makes it incredibly easy to create lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
In this talk, you will learn when and how to use Testcontainers. We will cover the fundamentals and walk through a step-by-step example using a Spring Boot application that we build from scratch. As a bonus, we'll highlight some new features in Spring Boot 3.0 along the way!
jQuery Makes Writing JavaScript Fun Again (for HTML5 User Group)Doris Chen
Get frustrated by cross-browser incompatibility? Hate to develop application using JavaScript? jQuery is a powerful JavaScript library that can enhance your websites regardless of your background. jQuery is fast, lean, simple and hugely expandable, enabling you to build compelling web applications quickly and easily. In this session, we will start with a quick introduction of jQuery, illustrate what’s so good about jQuery, and demonstrate step by step how to develop jQuery Ajax application efficiently with database, web services, OData, NetFlix and ASP.NET MVC. Microsoft is now shipping, supporting, and contributing to jQuery, with ASP.NET and Visual Studio. New features which will be available in the next release of jQuery such as globalization, templating and data-linking will be introduced in the session as well.
Web testing with selenium and by quontra solutionsQUONTRASOLUTIONS
Quontra Solutions provides Selenium Testing online training by Real time IT experts. Selenium is having good demand in the market. Our Selenium online training Instructors are very much experienced and highly qualified and dedicated.
Our Selenium online training program is job oriented. After completion of Selenium training with us you should be able to work on any kind of project. After completion of Selenium online training our dedicated team will be supporting you.
J2EE : Java servlet and its types, environmentjoearunraja2
The server-side extensions are nothing but the technologies that are used to create dynamic Web pages. Actually, to provide the facility of dynamic Web pages, Web pages need a container or Web server. To meet this requirement, independent Web server providers offer some proprietary solutions in the form of APIs (Application Programming Interface).
These APIs allow us to build programs that can run with a Web server. In this case, Java Servlet is also one of the component APIs of Java Platform Enterprise Edition (nowadays known as – ‘Jakarta EE’) which sets standards for creating dynamic Web applications in Java.
Today we all are aware of the need to create dynamic web pages i.e. the ones that can change the site contents according to the time or can generate the content according to the request received by the client. If you like coding in Java, then you will be happy to know that using Java there also exists a way to generate dynamic web pages and that way is Java Servlet. But before we move forward with our topic let’s first understand the need for server-side extensions.
Servlets are the Java programs that run on the Java-enabled web server or application server. They are used to handle the request obtained from the web server, process the request, produce the response, and then send a response back to the web server. Servlet is faster than CGI as it doesn’t involve the creation of a new process for every new request received.
Servlets, as written in Java, are platform independent.
Removes the overhead of creating a new process for each request as Servlet doesn’t run in a separate process. There is only a single instance that handles all requests concurrently. This also saves the memory and allows a Servlet to easily manage the client state.
It is a server-side component, so Servlet inherits the security provided by the Web server.
The API designed for Java Servlet automatically acquires the advantages of the Java platforms such as platform-independent and portability. In addition, it obviously can use the wide range of APIs created on Java platforms such as JDBC to access the database.
Many Web servers that are suitable for personal use or low-traffic websites are offered for free or at extremely cheap costs eg. Java servlet. However, the majority of commercial-grade Web servers are rather expensive, with the notable exception of Apache, which is free.
The Servlet Container
Servlet container, also known as Servlet engine, is an integrated set of objects that provide a run time environment for Java Servlet components. In simple words, it is a system that manages Java Servlet components on top of the Web server to handle the Web client requests.
Services provided by the Servlet container:
Network Services: Loads a Servlet class. The loading may be from a local file system, a remote file system or other network services. The Servlet container provides the network services over which the request and response are sent.
Level Up Your Integration Testing With TestcontainersVMware Tanzu
Traditional approaches to integration testing—using shared, local, or in-memory databases—fall short for today's modern developer.
Developers today are building cloud native distributed microservices and taking advantage of a rich variety of backing services. This explosion of applications and backing services introduces new challenges in creating the necessary environments for integration testing. To be useful and effective, these environments must be easy to create and they must resemble production as closely as possible. New solutions are needed to make this need a reality.
Enter Testcontainers!
Testcontainers is a Java library that supports JUnit tests and makes it incredibly easy to create lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
In this talk, you will learn when and how to use Testcontainers. We will cover the fundamentals and walk through a step-by-step example using a Spring Boot application that we build from scratch. As a bonus, we'll highlight some new features in Spring Boot 3.0 along the way!
jQuery Makes Writing JavaScript Fun Again (for HTML5 User Group)Doris Chen
Get frustrated by cross-browser incompatibility? Hate to develop application using JavaScript? jQuery is a powerful JavaScript library that can enhance your websites regardless of your background. jQuery is fast, lean, simple and hugely expandable, enabling you to build compelling web applications quickly and easily. In this session, we will start with a quick introduction of jQuery, illustrate what’s so good about jQuery, and demonstrate step by step how to develop jQuery Ajax application efficiently with database, web services, OData, NetFlix and ASP.NET MVC. Microsoft is now shipping, supporting, and contributing to jQuery, with ASP.NET and Visual Studio. New features which will be available in the next release of jQuery such as globalization, templating and data-linking will be introduced in the session as well.
Web testing with selenium and by quontra solutionsQUONTRASOLUTIONS
Quontra Solutions provides Selenium Testing online training by Real time IT experts. Selenium is having good demand in the market. Our Selenium online training Instructors are very much experienced and highly qualified and dedicated.
Our Selenium online training program is job oriented. After completion of Selenium training with us you should be able to work on any kind of project. After completion of Selenium online training our dedicated team will be supporting you.
3. Purpose
• The Cookie provides an easy way for servlets to
read, create and manipulate HTTP-style cookies,
which allow servlets to store small amounts of data
on the client.
• Cookies are generally used for session tracking
or storing small amounts of user-specific
configuration information.
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 3
4. Class summary
public class Cookie implements java.lang.Cloneable {
//constructor
public Cookie(String name,String value)l
//instance methods
public Object Clone();
public String getComment();
public String getDomain();
public String getMaxAge();
public String getName();
public String getPath();
public String getSecure();
public String getValue();
public String getVersion();
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 4
5. Class summary
public void setComment(String purpose);
public void setDomain(String pattern);
public void setMaxAge(int Expiry);
public void setPath(String uri);
public void setSecure(boolean flag);
public void setDomain(String pattern);
public void setValue(String newValue);
public void setVersion(int v);
}
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 5
6. Class summary
• Cookie()
Constructs a new cookie with a initial name and value
• clone()
To return a copy of object(duplicate cookie)
• getComment()
Returns comments associated with cookie
• getDomain()
Returns domain limitation associated with cookie
• getMaxAge()
Returns max age allowed for this cookie
• getPath
Returns path limitation for this servlet
• getSecure()
Returns true if the cookie requires a secure connection, false
otherwise
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 6
7. • getName()
Returns name of the cookie
• getValue()
Returns value of the cookie in String format
• getVersion()
Returns version of the cookie
• setComment()
Sets the comment field of the cookie
• setDomain()
Specifies domain restriction pattern
• setMaxAge()
Specifies the maximum age of the cookie
• setPath()
Specifies path for cookie
• setSecure()
The secure flag indicates whether the cookie should be sent only over a secure
channel, such as SSL
• setValue()
Assigns new value to a cookie
• setVersion()
Servlets can send and receive cookies formatted to match either Netscape persistent
cookies or the newer
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 7
8. Sample servlet to implement cookie
• cookiesform.html
<html>
<head><title>Cookies</title></head>
<body>
<form action="http://localhost:8080/lalitha/cookie">
Enter name
<input type="text" name="t1"/><br>
Enter qualification
<input type="text" name="t2"/><br>
<input type="submit" name="submit" value="Submit"/>
</form>
</body>
</html>
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 8
9. • cookie.java
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class cookie extends HttpServlet {
public void doGet(HttpServletRequest req,
HttpServletResponse res)
throws IOException, ServletException
{
res.setContentType("text/html");
PrintWriter out = res.getWriter();
String name=req.getParameter("t1");
String qual=req.getParameter("t2");
Cookie c=new Cookie(name,qual);
res.addCookie(c);
out.println("cookies are added");
}
}
10/31/2012 R.V.S.Lalitha.,M.Tech(Ph.D) 9