2021SC@SDUSC

This article focuses on the page code module module-page Introduction and analysis , Make it clear module-page Module architecture and purpose of each sub module , Then analyze the first sub module in detail module-page-model.

Catalog

One 、module-page The module overview

1.1 JPress framework

1.2 module-page Corresponding functions

Two 、module-page Module architecture

2.1 module-page-model

2.2 module-page-web

2.3 module-page-service

2.4 module-page-service-provider

3、 ... and 、module-page-model Module analysis

3.1 Add dependency

3.2 BaseSinglePage

3.3 SinglePage

Four 、 summary

---

One 、module-page The module overview

1.1 JPress framework

JPress Is powerful , Including articles 、 page 、 product 、 Functions of each module related to users . It can be seen from the architecture diagram that , Page module code module-page by JPress An important part of ,module-page And jpress-template Combination of modules , Allows us to quickly develop templates , Create a personal technology blog 、 Marketing Interface 、 The company's official website, etc .

1.2 module-page Corresponding functions

The function corresponding to the page module code is page management 、 newly build 、 Comment on 、 Set up functions .

• Page management ： Provides access to published 、 draft 、 Batch operation of dustbin interface .

• newly build ： Based on the existing template , Be able to write the content simply , Form a perfect interface , You can set SEO And so on .

• Comment on ： Provide batch management of all comments on published articles .

• Set up ： Provide the setting of comment function 、 Relevant settings of comment notice .

Two 、module-page Module architecture

module-page It contains four sub modules ：

<modules>
        <module>module-page-model</module>
        <module>module-page-web</module>
        <module>module-page-service</module>
        <module>module-page-service-provider</module>
    </modules>

2.1 module-page-model

• module-page-model Is the entity class module of the page , Defined the page 、 Related variables of comments and their get and set Method .

2.2 module-page-web

• Realize the interactive interface and function realization .

2.3 module-page-service

• Define database operations model Related interfaces , For example, delete according to the page primary key Model、 Add or update Model Data etc. .

2.4 module-page-service-provider

• The underlying the JFinal、Jboot Related technology , Operation on Database Model Implementation of related interfaces .
• Define thread implementation Runnable Interface , use JFinal Number of visits to technology update pages .

3、 ... and 、module-page-model Module analysis

Contains abstract classes BaseSinglePage、 His subclass SinglePage, And abstract classes BaseSinglePageComment、 His subclass SinglePageComment.

3.1 Add dependency

The main dependencies of this module are Jboot, And Jboot Based on JFinal complete MVC + ORM Supported development , Therefore, both are the main framework of development . The second is the need jpress-commons Tool class 、jpress-core The functional core class consists of two modules .

<dependencies>

        <dependency>
            <groupId>io.jboot</groupId>
            <artifactId>jboot</artifactId>
        </dependency>

        <dependency>
            <groupId>io.jpress</groupId>
            <artifactId>jpress-commons</artifactId>
        </dependency>
        <dependency>
            <groupId>io.jpress</groupId>
            <artifactId>jpress-core</artifactId>
        </dependency>

    </dependencies>

3.2 BaseSinglePage

Inherit JbootModel, and JbootModel Inherited from jfinal.plugin.activerecord.Model, Realization IBean Interface .

• Defines the basic properties of a page and its properties get and set Method .
• Model yes ActiveRecord One of the most important components in , It acts as MVC In the pattern Model part .
• One Model Corresponding to a piece of data in the database .
• BaseSinglePage By inheritance Model, There are many convenient ways to operate the database . be based on ActiveRecord Of Model There is no need to define properties , There is no need to define getter、setter Method , There is no need to XML To configure , There is no need to Annotation To configure , Greatly reduces the amount of code .
• stay BaseSinglePage in , Defines the corresponding attributes in the database table set and get Method . The code example is as follows ：

/**
     *  Primary key ID
     */
	public void setId(java.lang.Long id) {
		set("id", id);
	}
/**
     *  Primary key ID
     */
	public java.lang.Long getId() {
		return getLong("id");
	}

BaseSinglePageComment And BaseSinglePage The implementation side of is the same , Just different functions , Defines the basic attributes of a comment and its get and set Method .

3.3 SinglePage

Inherit BaseSinglePage<M extends BaseSinglePage<M>>.

• Use @Table annotation , Specify the corresponding database table name as single_page, And its parent class BaseSinglePage Medium set and get Method is used as the relevant data in the operation table . Table is defined as follows ：

• The above fields are the settings of relevant parameters of a page . Page html The code is based on text The form is stored in content in .
• Define page state ： Release （ normal ）、 draft 、 dustbin .
• Override some methods of the parent class , Define the variables and acquisition methods of the new page .

public String getHtmlView() {
        return StrUtil.isBlank(getStyle()) ? "page.html" : "page_" + getStyle().trim() + ".html";
    }

    public String getUrl() {
        return UrlUtils.getUrl("/", StrUtil.isNotBlank(getSlug()) ? getSlug() : getId());
    }

    public String getUrlWithPageNumber(int pageNumber) {
        if (pageNumber <= 1) {
            return getUrl();
        }

SinglePageComment And SinglePage Is implemented in the same way , Just different functions , It also rewrites some methods of the parent class , Variables that define the status of new comments , And how to change the comment status .

Four 、 summary

This article mainly analyzes module-page The architecture and of module-page-model Module code analysis , It is found that... Is used in this project jboot, Encapsulates the Jfinal, Adopted JFinal As the core ,JPress It's also benefited from JFinal Flexible architecture . So in the later code analysis , Yes JFinal Mastering is a necessary way to analyze code .