EZDML reverse engineering import database analysis practical operation tutorial

Import the data table model from the existing database for analysis , Also known as reverse engineering , It can be said that it is one of the most commonly used functions . Importing database is a standard function of all modeling tools , There is nothing to say , There is no need to write a special article ; however EZDML Make various supplements after importing 、 Analysis of this aspect is worth mentioning . Recently, I studied elder martial brother Octopus MES（ Manufacturing management system ）, This article takes this project as an example , Start from scratch EZDML Import database , And carry out corresponding analysis and treatment .

initialization

Since it starts from scratch , Let's also talk about initialization . Veterans can ignore this section .

Start with the pull code . Elder martial brother Octopus MES It's an open source project , The source address is ：

https://gitee.com/wangziyangyang/MES-Springboot
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direct git Clone locally ：

mes for java engineering , We use it idea Open import settings , And compile through . But I can't run at this time , Because the database is not ready ：

scripts for MYSQL Initialization script of database ：

I'm here MYSQL The database creates a mes user , And execute the initialization script , Create tables and import initial data （ Um. , Didn't understand idea this SQL How to execute the tool , I actually use EZDML Of SQL Tool execution ）：

And then put JAVA Modify the database connection configuration of the project , Let it connect to my local database ：

Then compile and run , notice “Tomcat started on port(s): 9090” It should have been started successfully ：

Open your browser and see ：

be familiar with LayUI Interface , It looks very kind ：

Initialization complete , Next, we start importing .

Import database

open EZDML（ I use it win64 edition ）, Connect to database ：

Connect successfully and list all tables ：

We all import ：

Complete the logical name of the table field

We observed that , Most of the imported tables and fields already have Chinese logical names , Only sp_order and sp_sys_department These two tables and some fields have no logical names . Let's add something to them .

sp_order Below is the work order number 、 Job description 、 Fields like planned time , Guess it should be the work order . Flipped in the system , There is a work order plan release module ：

Um. , It should be it , We call it “ Work order plan ” Well ：

sp_sys_department What is a watch ？ English is not easy to guess （ English is good, please cooperate, don't spoiled ）, Double click to open table properties , Click the pull-down menu on the top right to switch to “ data ” One column ：

Um. , We can see from the data , It's an organizational department , named “ Organization Department ” Well , And by the way, change the logical names of several fields ：

Some students may say that I can't see the Department data in my database ？ ok , These data are actually for the convenience of demonstration EZDML Temporarily generated , Not in the original project .

however , Demonstration , Don't dwell on unimportant details , The final result is shown in the figure below ：

Rebuild foreign key relationships

I don't know when to start , Big guys are popular in programming and don't build foreign keys . however , For our students who do design analysis , Relationship is very important , So before further analysis , We need to rebuild the foreign key connection .

I've tried to write scripts to automatically recognize foreign key associations , But the effect is not very good . So let's do it manually , Fortunately, the system table fields have comments , Reconstruction should not be difficult .

Let's look at these tables ：

sp_sys_user( User information sheet )
sp_sys_menu( System menu )
sp_sys_role( Role table )
sp_sys_role_menu( The menu table corresponding to the role )
sp_sys_user_role( User's corresponding role table )
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It seems to be related to user permissions , Let's make a copy of them , Right click the list tree on the left to create a new “ User permissions ” Model diagram , And paste ：

obviously , The corresponding role table of the user user_id and role_id Related to users and roles respectively , We select the user main table , Press and hold SHIFT Key to select the corresponding table of user roles user_id Field , Right click “ Connect ”：

Confirm the association in the pop-up window ：

Correlation results ：

User authority model

Next, continue to improve this model . Connect the roles , You can select the main table （ Role table ）、 From table fields （ Hold down SHIFT Click User's corresponding role table .role_id） after , Directly by Ctrl+W relation ：

Then do the same for the menu and role association table ：

Press F11 Hide the list tree , Then I adjusted my position , I think it's better to understand ：

Among them, users 、 role 、 The three menus are real tables , The other two are relational tables , We give three real watches different colors （ Selection table , Right click to set the entity color ）：

Go back to all tables , You can see the colors of these tables 、 There are relationships ：

however , I suddenly realized that , There is another one in the user information table dept_id（ department ID）, Obviously, it corresponds to the organization department table just now , I missed it . We copy the Department table to “ User permissions ” Model diagram , Set colors and associate to user table , The final results are as follows ：

Manufacturing model

Go back to all tables , Press F8 show thumbnail , Observe the remaining table objects ：

Except for the table at the beginning of master data , The rest should have something to do with production , We select these tables , Right click replication ：

Then build “ manufacturing ” Model , And paste ：

Similar to before , By observing the table structure and table data , We can roughly analyze the various relationships between the guess tables ：

The specific process will not be described in detail , Anyway, after a meal , give the result as follows ：

Execute “ Rearrange ”, The table with the most relationships will be placed in the middle , Tables that are not associated will be listed below ：

obviously , The basic material list is quite important , We color them all ：

Overall data structure analysis

We can see from the previous two sections , When analyzing, we need to organize the related table objects according to the function modules , Form multiple model diagrams . But in most cases, a general model diagram is still useful .

Let's go back to all the tables , And perform rearrangement ：

The rearrangement results are as follows ：

hold “ All tables ” Drag to the end （ I'm used to having all my watches at the back ）, Press F8 View thumbnails ：

The basic relationship is clear .

Generate WORD Outline design

This function can be used to generate various acceptance documents , It's also a daily operation , After all, the project schedule is not urgent , We may often get the documents after the project is completed and the acceptance is required . Yes, of course , If your projects are well documented , Or more people write documents than programs , And the level is still very high , There would be no such need . However, there is always a gap between reality and ideal , Some documents may be useless , But it is necessary for acceptance . Even if you write documents for yourself , It's probably a lot easier for the tool to generate one .

Execute menu “ Model | export ”, In the pop-up window, select the export type as WORD（ Be careful EZDML If you select an object, only the selected object will be imported , Export all without selection ）：

The results derived ：

It's basically an outline design ：

EZDML The export function of is basically generated by script , If necessary, you can modify it by yourself . export WORD The script template of is Templates In the catalog export_doc_html_xxx.ps_（ Um. , Yes , It's actually generating HTML Again into WORD）.

Generate EXCEL The data dictionary

Basically follow the export WORD The operation is almost , Only the export type is selected EXCEL. The results are as follows ：

export EXCEL The script template of is Templates In the catalog export_xls_xxx.ps_（ Um. , Also generate HTML Again into EXCEL, So there may be a warning when opening ）.

export Markdown Interface document

When exporting, you can choose Markdown file, export Markdown Format interface document , The results include model diagrams ：

The data dictionary ：

Add delete check interface ：

export Markdown The script template of is Templates In the catalog export_markdown.js_.

Generate standard data format

The top interface JSON Data is generated by default , It's ugly , For example, the system menu table ：

{
  "id": "7fed7caaa551658e",
  "code": "code1",
  "name": " Menu name 1",
  "url": " menu URL1",
  "parent_id": " Parent menu ID1",
  "grade": " Hierarchy 1",
  "sort_num": 846,
  "type": " type 1",
  "permission": " to grant authorization 1",
  "icon": " Menu icons 1",
  "descr": " describe 1",
  "create_time": "2022-07-08 00:08:06",
  "create_username": " founder 1",
  "update_time": "2022-07-10 00:08:06",
  "update_username": " Last updated by 1"
}
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It's very fake ？EZDML Can generate “ formal ” A little data , Let's double-click “ System menu ”, First look at its data in the database ：

You can see , It has regular data in the database . Point to the top right “ more ” The menu opens “ Interface ” Configuration page ：

For menu name , We set the generation type , Get from the database ：

EZDML Will execute the database SQL obtain （ Default access 500 strip , You can modify it yourself SQL）：

next step ：

direct “ determine ” complete , The menu name becomes very “ formal ” 了：

next , We're on the menu URL、 Menu icons are treated similarly ：

then , We put code、 Parent menu ID、 Hierarchy 、 The generation type is set to integer ：

give the result as follows ：

By observing the database , We found that the maximum level is no more than 3, The type basically does not exceed 1, So let's change the level 、 Data generation rules of type , Set the maximum and minimum values ：

For authorization fields , When we write documents, we usually set whether we can access them and read, write, add, delete, modify, and so on , This EZDML Templates are also provided ：

Last , Creator and updater , We set it to Chinese name ：

After such a setting , When we generate documents again , It looks much better ：

It looks much more professional , Will not give people batch “ Counterfeiting ” I feel it. ：

Generate interface prototype

this MES yes LayUI Of , Just right EZDML It can also generate LayUI Prototype interface , So let's make a simple comparison , Take the system menu as an example , This is MES System operation interface ：