用python生成mysql数据库结构文档

pip install pymysql
pip install document

# -*- coding: utf-8 -*-
import pymysql
from docx import Document
from docx.shared import Pt
from docx.oxml.ns import qn

db = pymysql.connect(host='127.0.0.1', #数据库服务器IP
                         port=3306,
                         user='root',
                         passwd='123456',
                         db='test_db') #数据库名称)
#根据表名查询对应的字段相关信息
def query(tableName):
    #打开数据库连接
    cur = db.cursor()
    sql = "select b.COLUMN_NAME,b.COLUMN_TYPE,b.COLUMN_COMMENT from (select * from infORMation_schema.`TABLES`  where TABLE_SCHEMA='test_db') a right join(select * from information_schema.`COLUMNS` where TABLE_SCHEMA='test_db_test') b on a.TABLE_NAME = b.TABLE_NAME where a.TABLE_NAME='" + tableName+"'"
    cur.execute(sql)
    data = cur.fetchall()
    cur.close
    return data
#查询当前库下面所有的表名，表名：tableName；表名+注释(用于填充至word文档)：concat(TABLE_NAME,'(',TABLE_COMMENT,')')
def queryTableName():
    cur = db.cursor()
    sql = "select TABLE_NAME,concat(TABLE_NAME,'(',TABLE_COMMENT,')') from information_schema.`TABLES`  where TABLE_SCHEMA='test_db_test'"
    cur.execute(sql)
    data = cur.fetchall()
    return data
#将每个表生成word结构，输出到word文档
def generateWord(singleTableData,document,tableName):
    p=document.add_paragraph()
    p.paragraph_format.line_spacing=1.5 #设置该段落 行间距为 1.5倍
    p.paragraph_format.space_after=Pt(0) #设置段落 段后 0 磅
    #document.add_paragraph(tableName,style='ListBullet')
    r=p.add_run('\n'+tableName)
    r.font.name=u'宋体'
    r.font.size=Pt(12)
    table = document.add_table(rows=len(singleTableData)+1, cols=3,style='Table Grid')
    table.style.font.size=Pt(11)
    table.style.font.name=u'Calibri'
    #设置表头样式
    #这里只生成了三个表头，可通过实际需求进行修改
    for i in ((0,'NAME'),(1,'TYPE'),(2,'COMMENT')):
        run = table.cell(0,i[0]).paragraphs[0].add_run(i[1])
        run.font.name = 'Calibri'
        run.font.size = Pt(11)
        r = run._element
        r.rPr.rFonts.set(qn('w:eastAsia'), '宋体')
    
    for i in range(len(singleTableData)):
        #设置表格内数据的样式
        for j in range(len(singleTableData[i])):
            run = table.cell(i+1,j).paragraphs[0].add_run(singleTableData[i][j])
            run.font.name = 'Calibri'
            run.font.size = Pt(11)
            r = run._element
            r.rPr.rFonts.set(qn('w:eastAsia'), '宋体')
        #table.cell(i+1, 0).text=singleTableData[i][1]
        #table.cell(i+1, 1).text=singleTableData[i][2]
        #table.cell(i+1, 2).text=singleTableData[i][3]
    

if __name__ == '__main__':
    #定义一个document
    document = Document()
    #设置字体默认样式
    document.styles['Normal'].font.name = u'宋体'
    document.styles['Normal']._element.rPr.rFonts.set(qn('w:eastAsia'), u'宋体')
    #获取当前库下所有的表名信息和表注释信息
    tableList = queryTableName()
    #循环查询数据库，获取表字段详细信息，并调用generateWord，生成word数据
    #由于时间匆忙，我这边选择的是直接查询数据库，执行了100多次查询，可以进行优化，查询出所有的表结构，在代码里面将每个表结构进行拆分
    for singleTableName in tableList:
        data = query(singleTableName[0])
        generateWord(data,document,singleTableName[1])
    #保存至文档
    document.save('数据库设计.docx')