Pro Spring MVC: With Web Flow

Expert Spring MVC and Web Flow provides in-depth coverage of Spring MVC and Spring Web Flow, two highly customizable and powerful web frameworks brought to you by the developers and community of the Spring Framework. Spring MVC is a modern web application framework built upon the Spring Framework, and Spring Web Flow is a new project that compliments Spring MVC for building reusable web controller modules that encapsulate rich page navigation rules. Along with detailed analysis of the code and functionality, plus the first-published coverage of Spring Web Flow, this book includes numerous tips and tricks to help you get the most out of Spring MVC, Spring Web Flow, and web development in general. Spring MVC and Spring Web Flow are engineered with an important consideration for design patterns and expert object oriented programming techniques. This book explains not only the design decisions of the frameworks, but also how you can apply similar designs and techniques to your own code. This book takes great care in covering every inch of Spring MVC and Spring Web Flow to give you the complete picture. Along with all the best known features of these frameworks, youll discover some new hidden treasures. Youll also learn how to correctly and safely extend the frameworks to create customized solutions. From beginner to expert, this book is for anyone who wishes to write robust, modern, and useful web applications with the Spring Framework. Table of Contents Introduction Spring Fundamentals Spring MVC Application Architecture Jump into Spring MVC The Processing Pipeline The Controller Menagerie The View Layer Supported View Types Validation Testing Spring MVC Applications Introduction to Spring Web Flow Advanced Spring Web Flow

- Currently, many web application frameworks that available in the internet, we know from wikipedia that more than 20 java frameworks for developing web application. Frameworks is a developed base of related design or related architecture. A framework provides a set of libraries or classes that used by us to developing a web application, they will cooperate each others to accomplish certain tasks in the intended domain [SCHWABE 2001]. Decision makers can choose application frameworks that can be implemented in information system development. In this research writer will examine features in framework Java server faces, Struts, and Spring MVC with using ISO 9126 for getting criteria in choosing framework. This research will compare hierarchically with approaching Analytical Hierarchy Process (AHP). Finally, from the result of this research we got the best alternatif from Java framework. The best java framework is Java Framework Spring MVC in comparison of Java Framework Java Server Faces and Java Framework Struts. So, it is very clear that Java Framework Spring MVC is the best framework which supported in developing information system. Keyword : Framework, Java Server Faces, Spring MVC, ISO 9126, Analytical Hierarchy Process

Modern and Responsive Mobile-enabled Web Applications

Memory leaks in web applications are pervasive and difficult to debug. Leaks degrade responsiveness by increasing garbage collection costs and can even lead to browser tab crashes. Previous leak detection approaches designed for conventional applications are ineffective in the browser environment. Tracking down leaks currently requires intensive manual effort by web developers, which is often unsuccessful. This paper introduces BLEAK (Browser Leak debugger), the first system for automatically debugging memory leaks in web applications. BLEAK'S algorithms leverage the observation that in modern web applications, users often repeatedly return to the same (approximate) visual state (e.g., the inbox view in Gmail). Sustained growth between round trips is a strong indicator of a memory leak. To use BLEAK, a developer writes a short script (17-73 LOC on our benchmarks) to drive a web application in round trips to the same visual state. BLEAK then automatically generates a list of leaks found along with their root causes, ranked by return on investment. Guided by BLEAK, we identify and fix over 50 memory leaks in popular libraries and apps including Airbnb, AngularJS, Google Analytics, Google Maps SDK, and jQuery. BLEAK'S median precision is 100%; fixing the leaks it identifies reduces heap growth by an average of 94%, saving from 0.5MB to 8MB per round trip.

A review of works devoted to the University automation problems or Gale-Shapley algorithm using is carried out. The paper analyzes the organizational, information and communication components of the scientific director electing process. The drawbacks of the students distribution existing algorithms are highlighted, namely: a student is left without a scientific director; distribution blocking due to a teacher or student fault; teachers' quotas dynamic change during distribution. The following subsystem users groups (roles) are distinguished: student, graduate student, departments teachers, department head, laboratory assistant, dean, deputy dean, dean's office methodologist, rector, specialist of the general department. A modified scientific director election process (algorithm) is proposed. A mathematical model for these processes is described. An algorithm that allows automatically set priorities in questionnaires that are not completed by students / teachers has been developed. The Gale-Shapley algorithm is used for automatic pairing < scientific director; student>. In this case, the following conditions are met for the obtained set of pairs: each student must be assigned a scientific director; for scientific director, selected students number should be according to the workload. To test the approach proposed in the work, a corresponding subsystem consisting of a relational database and a web application was implemented. When creating a web application, the following were used: Spring Framework, Vaadin, Hibernate, RabbitMQ message broker, PostgreSQL DBMS, REST.

Dynamic web development still borrows heavily from its origins in CGI scripts: modern web applications are largely designed and developed as programs that happen to output HTML. This thesis proposes to investigate the idea taking a mockup-centric approach instead, in which self-contained, full page web mockups are the central artifact driving the application development process. In some cases, these mockups are sufficient to infer the dynamic application structure completely.This approach to mockup driven development is made possible by the development of a language the thesis develops, called Cascading Tree Sheets (CTS), that enables a mockup to be annotated with enough information so that many common web development tasks and workflows can be eliminated or vastly simplified. CTS describes and encapsulates a web page's design structure the same way CSS describes its styles. This enables mockups to serve as the input of a web application rather than simply a design artifact. Using this capability, I will study the feasibility and usability of mockup driven development for a range of novice and expert authorship tasks. The thesis aims to finish by demonstrating that the functionality of a domain-specific content management system can be inferred automatically from site mockups.

The main focus of Pro Web 2.0 Application Development with GWT is an analysis of a full-fledged Web 2.0 application called GWT College Bound. This book is for people who are looking to get beyond smal

Currently, many web application frameworks that available in the internet, we know from wikipedia that more than 20 java frameworks for developing web application. Frameworks is a developed base of related design or related architecture. A framework provides a set of libraries or classes that used by us to developing a web application, they will cooperate each others to accomplish certain tasks in the intended domain [SCHWABE 2001]. Decision makers can choose application frameworks that can be implemented in information system development. In this research writer will examine features in framework Java server faces, Struts, and Spring MVC with using ISO 9126 for getting criteria in choosing framework. This research will compare hierarchically with approaching Analytical Hierarchy Process (AHP). Finally, from the result of this research we got the best alternatif from Java framework. The best java framework is Java Framework Spring MVC in comparison of Java Framework Java Server Faces and Java Framework Struts. So, it is very clear that Java Framework Spring MVC is the best framework which supported in developing information system.

With the increase in the number and length of pipelines in China, pipeline damage accidents are increasing as well. Traditional methods do not allow real-time monitoring of pipelines. The development of the Internet of Things has promoted the monitoring techniques and the development of pipelines. But a problem arises as to how to deal with the huge data generated by monitoring systems. This paper proposes a real-time data visualization method for oil pipeline monitoring based on the Internet of Things. In this method, the measurement nodes of the sensing layer collect the pipeline data and transmit them to the server of the application layer through the network layer. A web application is built based on Spring MVC in the application layer of the Internet of Things to process the data through the interaction between the front and the back. The data visualization algorithm based on Echarts and AJAX is used to position the pipelines and the real-time situation of pipeline anomalies. The results show that with this method, the program runs faster and has higher monitoring efficiency, and the poor readability problem of the oil pipeline data is solved.

The purpose of the article is to study and analyze various components of the Full Stack JavaScript concept and to consider common problems and prospects for developing a prototype educational web application based on it. The research methods are the main methodological approaches and technological tools for the development of intelligent learning systems with elements of gamification based on the use of an appropriate multi-level ontological model. These methods include, in particular: systemic and comparative analyses to identify the features of creating scalable and high-performance web applications; the method of expert evaluation, which involves analyzing literature and information resources, conducting interviews and surveys of experts, as well as the processes of developing and testing scalable and high-performance web applications. The scientific novelty of the research is the analysis of modern technologies for the development of online educational process support platforms, the results of which can be used in the preparation of their e-learning support software product, which is a user’s assistant in the process of studying the relevant educational content, and may even become an independent unit – an online course. Conclusions. The paper investigates the existing views on the modern approach to the development of high-performance websites using the main components of the Full Stack JavaScript concept: Node.js, Express and MongoDB. The strengths and weaknesses of well-known e-learning support platforms are analyzed. This analysis led to the choice of the Full Stack JavaScript concept for the development of modern web applications. We used technologies such as HTML, CSS, and JavaScript for front-end development. For backend development, we used Node.js together with Express. The MongoDB database was used to store data (as documents). The proposed approach to developing a prototype of an educational web application has demonstrated the possibility of such an implementation of each component of Full Stack JavaScript when the web application provides minimalistic functions of an online learning platform, achieving the required level of both educational content and the level of competencies that users of the application can potentially obtain. The Full Stack JavaScript concept provides one of the best solutions for developing modern web applications, reducing the separation between frontend and backend and facilitating development flexibility. This allows you to create scalable and high-performance educational web applications using a single language. Considering the results of this analysis, a decision has been made to develop a prototype of an educational web application based on the Full Stack JavaScript concept that would provide minimalistic functions of an online learning platform.

The unprecedented increase in web-based services and digital systems has prompted the dire need for secure information transmission all over the global networks. Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols form the basis of web communication that will provide confidentiality, authenticity, and integrity of data communication between different systems. In this work, we have critically compared and contrasted Transport Layer Security (TLS) and Secure Socket Layer (SSL), considering their design architectures, cryptographic mechanisms, and operational performance in modern applications. We took advantage of recent literature, global best practices, and international standards such as IETF RFC 8446 (TLS 1.3) and NIST SP 800-52 Rev.2 to evaluate security capability, vulnerabilities, and the strategies for migrations. TLS 1.3 is now the basic standard due to its enhanced efficiency, lower latency of handshake, and better encryption through AEAD (Authenticated Encryption with Associated Data) algorithms; however, compatibility with legacy systems and inconsistencies in configuration pose serious challenges. We concluded by recommending the best practices for developers, system architects, and cybersecurity professionals to build robust, standards-compliant web applications

In this paper, the web application of geographic information system (GIS) integrated with file uploading module was designed to achieve a better performance for interactive map applications. The B/S archtechture was used for the design of WebGIS system based on Spring Framework, providing features for adding and updating geospatial data as well as attribute information through the web. The novel design of map data visualization offers powerful web map applications, including features of spatial information storage and files uploading based on distributed archtechture. The successful result indicates that the enhancement of spatial analysis and data visualization based on WebGIS will support a feasible and flexible approach for interactive map applications and bring considerable economic benefits.

This paper describes AnnaBot, one of the first tools to verify correct use of Annotation-based metadata in the Java programming language. These Annotations are a standard Java 5 mechanism used to attach metadata to types, methods, or fields without using an external configuration file. A binary representation of the Annotation becomes part of the compiled “.class” file, for inspection by another component or library at runtime. Java Annotations were introduced into the Java language in 2004 and have become widely used in recent years due to their introduction in the Java Enterprise Edition 5, the Hibernate object-relational mapping API, the Spring Framework, and elsewhere. Despite that, mainstream development tools have not yet produced a widely-used verification tool to confirm correct configuration and placement of annotations external to the particular runtime component. While most of the examples in this paper use the Java Persistence API, AnnaBot is capable of verifying anyannotation-based API for which “claims”—description of annotation usage—are available. These claims can be written in Java or using a proposed Domain-Specific Language, which has been designed and a parser (but not the code generator) have been written.

Developers are extracted from 17 open-source projects from GitHub. Projects are chosen that use the java programming language, the Spring framework and Maven/Gradle build tools. Along with these developers, 24 software engineering metrics are extracted for each of them. These metrics are either calculated by analyzing the source code or relative to project management metadata. Each of these developers then are manually searched for in professional social media such as LinkedIn or Twitter to be labeled with their experience level in their project. Outliers are statistically detected and manually re-assigned when needed. The resulting dataset contains 703 anonymized developers qualified by their 24 project-related software engineering metrics and labeled for their experience. It is suitable for empirical software engineering studies that need to connect developers’ level of experience to tangible software engineering metrics.

The article is devoted to the Firebase platform developed by Google and its capabilities for creating modern mobile and web applications. It hosts key Firebase components such as cloud databases (Real time Database), user authentication, cloud storage, hosting and analytics. Particular attention is paid to the continued use of Firebase, which includes ease of integration, support for real-time data synchronization and scalability.