With the rapid growth of the demand for the Internet, the traditional network has faced with various problems. SDN technology provides a new type of network architecture which is decoupled from the data plane and control plane, providing a new solution for the development of the internet. This paper presents a method using the Openflow controller and Dijkstra algorithm to solve the optimal path searching problem in the procedure of data forwarding.

Spatial autocorrelation index reflects the degree of the correlation between the geographical elements. Based on random grayscale, this paper completes the calculation of all kinds of spatial autocorrelation index with the aid of computer technology. Moreover, it analyzes the calculation results and validates each index in detecting aggregation ability.

Based on the people’s need of intelligent window, this article expatiates on the working principle and the circuit structure of intelligent window controller in detail, which is the union of the technology of digital logical circuit and motor speed regulation. This circuit is simply, reliable and low in cost, which solves the problems of complex function, low practicability and high cost in the exiting technology, in order to meeting with the need of common people.

This paper mainly studies the structure and characteristics of teacher information level in university. Taking Suzhou Chien-shiung Institute of Technology as an example, according to the survey results, we make a survey and analysis of the level of information. We develop targeted information level training program according to different levels of evaluation, so as to build a comprehensive evaluation system of teacher information level.

In recent years, collaborative learning has been the hot spot of education systems at home and abroad. In this paper, three kinds of collaborative learning mode used in programming education courses are discussed and their influence on teaching organization and students' abilities improvement are analyzed. The practice has proved that the application of collaborative learning in programming education courses is active and effective.

The attack and defense work of the local area network is the key to build a healthy and reliable network information environment. Firstly, the characteristics of LAN are described; then the security testing of attack and defense of LAN is analyzed from vulnerability scanning, firewall usage and security equipment construction. It improves the LAN security index, assuring its smooth operation.

Password security is an important part of Web application security. With ASP.NET technology, this paper discusses how to set up a secure password and storage password in detail, and puts forward the corresponding solution.

The properties, attributes and reflection are very important features of C#. However, they are difficult to understand and use. This paper briefly describes their principles and mechanisms from the perspective of practical application with concrete examples.

Based on Excel table of the campus one-stop service system, this paper mainly introduces the interactive examples of batch data import and export of Excel table with PHPExcel class, and summarizes some methods, techniques and notes of PHPExcel class. For the actual project, the batch data operation of Excel table has signed and guiding significance.

This thesis maps the method call relation to a dynamic network, extracts the hierarchical structure and core vertices of the original network based on K-core decomposition, analyzes the dynamic network by 2 norm of the matrix theory, considers the characteristics of the monitoring data and the change of software status. We design a real-time updated visual interface. It achieves good experimental results to verify the validity of the prediction model, and gives the further expansion of this model.

With the development of society, the total amount of library is orders of magnitude increase, people faced a large number of books and literature don’t know how to choice, and the traditional book retrieval technology is not to provide readers with the active and personalized search results. Recommendation system is an intelligent system, it is the user to the target object selection, evaluation of large amounts of information through specific algorithms for processing, according to the processing results in the formation of recommendation list is recommended to the user, in order to provide decision-making reference. This article will study and discuss the collaborative filtering recommendation system based on classification.

This paper mainly introduces the application of electronic scanning in the material error proofing. It expounds the related issues and measures of promoting material error proofing using electronic barcode scanning.

This paper introduces the conception and operation steps of cursor. It analyzes how to use a cursor to update data based on multi-table, and explains the use of cursor by specific case.

With the increasing scale of college students, how to make use of the network teaching environment and design the online question answering system which is in line with the college teaching is a problem worthy of study. This paper analyzes the problems of traditional question answering system in colleges and universities, designs a system based on Struts2 and Spring, and focuses on the functions of the system design, database design and the realization method of key points.

As a kind of renewable clean energy, biogas is widely used in rural areas, but its security has become an important issue of the promotion. In recent years, the monitoring of the operation and management of biogas project has become an important problem in the industry. The Internet of Things is a new kind of information technology, which can be based on the sensing technology, the sensor network real-time access to all kinds of data, and can play an important role in the operation of biogas project monitoring. However, in recent years, from the research and practice, we can find that the actual operation of the biogas project monitoring system is still in the primary stage of research. In this paper, based on the actual needs of the operation and management of the Agricultural Bureau of Beijing Agricultural Bureau, the intelligent monitoring system for the operation and management of biogas project is designed and realized. The practical results show that the system has good application effect.

This paper makes a research on the teaching reform of Access Database Application for non computer major in colleges and universities. This paper studies the teaching contents, teaching methods, teaching management mode and performance evaluation methods, thus puts forward the teaching method of project oriented teaching. The students study the contents of the course by grouping, which can improve the students' DIY ability, independent learning ability, creative thinking ability and team cooperation ability, and effectively improve the teaching quality.

China's higher vocational education still exist many problems. The educational methods and educational model are traditional, which don’t keep pace with the times, resulting in the slow development of education. Aiming at these problems, this paper explores the problems and countermeasures in higher vocational computer teaching to provide reference for teachers.

Aiming at the problems of traditional teaching such as taking teaching as center, the evaluation method being simple, and the dominant position of students in the study being ignored, this paper analyzes the characteristics of students in vocational colleges, discusses how to ensure the students' pre-class learning, practice, practice in class, assessment and so on. It presents a method applying the flipped classroom in theWindows curriculum in vocational colleges.