The logical process of implementing a full-featured online questionnaire survey system in Java

With the development of the Internet, more and more companies, schools and organizations need to conduct questionnaire surveys to collect user feedback, understand market demand, surveyor satisfaction, etc. In this case, a full-featured online questionnaire survey system can be implemented through Java programming to make the questionnaire survey more convenient and efficient. This article will introduce the logical process of implementing an online questionnaire system in Java.

1. System requirements analysis

Before developing an online questionnaire system, we need to conduct a system requirements analysis to clarify the functions and characteristics of the system. First of all, this system needs to be able to implement functions such as creating questionnaires, editing questionnaires, sending questionnaires, collecting questionnaire results, data statistics and analysis, etc. Secondly, the system should support multiple questionnaire types and question types, such as single-choice questions, multiple-choice questions, fill-in-the-blank questions, etc. In addition, the system should have a good user experience, with a simple and friendly interface and simple and clear operation.

2. Database design

Subsequently, we need to design the database to store the questionnaire and result data. The system can use relational databases, such as MySQL, Oracle, etc., to store information such as questionnaires, questions and answers in different tables. You can design the following table:

Questionnaire table questionnaire

##create_timedatetime

Field name	Type
id	int
name	varchar
description	varchar
creator	varchar

Question formquestion

Field nameTypeidintquestion_typeintquestion_descvarchar##options##questionnaire_idintAnswer table answer

varchar

Field nameTypeidintquestionnaire_idintquestion_idint answervarcharanswer_timedatetime

3. System Architecture Design

When designing the system architecture, we can use the MVC (Model-View-Controller) pattern to divide the system into three models: model, view and controller. part. The model is used to represent data and business logic, the view is used to display data, and the controller is used to handle user interaction and business logic. Specifically, you can design the following classes:

Model

• Questionnaire: Questionnaire model, including id, name, description, creator, createTime and other attributes
• Question : Question model, including attributes such as id, questionType, questionDesc, options, etc.
• Answer: Answer model, including attributes such as id, questionnaireId, questionId, answer, answerTime, etc.

View

• Index: Home page view, displaying the questionnaire list and create questionnaire button
• QuestionnaireList: Questionnaire list view, displaying the created questionnaire and edit and delete buttons
• QuestionnaireEdit: Questionnaire editing View, displays questionnaires and questions through forms, and provides buttons for save, publish, cancel, etc.
• QuestionnaireDetail: Questionnaire details view, displays questionnaires and questions, and provides submit buttons
• AnswerList: Answer list view, Display answer list and export button
• DataAnalysis: Data analysis view, display statistical and analytical data of questionnaire results, such as histograms, pie charts, etc.

Controller

• IndexController: Control the display of the homepage and the operation of creating questionnaires
• QuestionnaireController: Control the creation, editing, publishing, deletion and answering of questionnaires
• AnswerController: Control the query and answer of answers Export and other operations
• DataAnalysisController: Control operations such as data statistics and analysis

4. Data transmission design

When implementing data transmission, we You can adopt the RESTful (Representational State Transfer) architectural style and use the HTTP protocol for data transmission and interaction. Specifically, the following API can be designed:

• GET /questionnaire: Get a list of questionnaires
• POST /questionnaire: Create a questionnaire
• GET /questionnaire/{id} ：Get questionnaire details
• PUT /questionnaire/{id}：Update questionnaire
• DELETE /questionnaire/{id}：Delete questionnaire
• GET /answer?questionnaireId={questionnaireId }&questionId={questionId}: Query answer list
• GET /dataanalysis: Get data analysis results

5. System development implementation

Completed After the above design, we can proceed with system development and implementation. First of all, you can choose to use some popular Java Web frameworks, such as Spring, Spring Boot, Struts, etc., to simplify the development process. Secondly, you can choose to use some front-end technologies, such as Bootstrap, jQuery, Vue, etc., to improve the user experience and interface effect. Finally, you can go through steps such as debugging, testing, and deployment to ensure that the system operates properly and meets business needs.

In short, Java can implement a full-featured online questionnaire survey system, making questionnaire surveys more convenient and efficient through steps such as system requirements analysis, database design, system architecture design, data transmission design and system development implementation.

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