Python3用ReportLab生成pdf报表,不学何来惊喜?

在平时工作中,习惯了汇总与总结。汇总了相关数据后,经常会把总结内容制作成相关报表,以供领导审阅。每当见到领导发出啧啧的赞叹声时,我也就心满意足了。

可一想到,每次做的都是重复,寡淡无味的内容时,未免心里有了些许的失落,关键是领导每次都只是口头表扬两句,没有实际的行动,我想你知道我说的什么意思。

1

好在咱是程序员,可以用Python3中的ReportLab生成pdf报表,以解眼前的尴尬。若要获得ReportLab开发包的功能,需要在【终端】窗口,通过pip3 install reportlab命令进行安装,安装成功的截图在这。

2

不知你的领导是如何的,反正我的领导就喜欢看图文并茂的报表。记得有一次,实在没数据可用,我就放一张漂亮的女明星照在上面。你还别说,这招真管用,平时反馈很慢的领导,那次一看完就马上来找我了--直接劈头盖脸的把我骂了一顿,说我放的女明星是PS过的…。我一时语塞,不知怎么回答才好,只好埋下头,眼里含着泪,默默地敲出了以下代码。

from reportlab.pdfbase import pdfmetrics

from reportlab.pdfbase.ttfonts import TTFont

from reportlab.platypus import Table, SimpleDocTemplate, Paragraph

from reportlab.lib.pagesizes import letter

from reportlab.lib.styles import getSampleStyleSheet

from reportlab.lib import colors

from reportlab.graphics.charts.barcharts import VerticalBarChart

from reportlab.graphics.charts.legends import Legend

from reportlab.graphics.shapes import Drawing

 

 

# 注册字体

pdfmetrics.registerFont(TTFont('SimSun', 'SimSun.ttf'))

 

 

class Graphs:

    def __init__(self):

        pass

 

    # 绘制标题

    @staticmethod

    def draw_title():

        style = getSampleStyleSheet()

        ct = style['Normal']

        ct.fontName = 'SimSun'

        ct.fontSize = 18

        # 设置行距

        ct.leading = 50

        # 颜色

        ct.textColor = colors.green

        # 居中

        ct.alignment = 1

        # 添加标题并居中

        title = Paragraph('程序员的兴趣调查报告', ct)

        return title

 

    # 绘制内容

    @staticmethod

    def draw_text():

        style = getSampleStyleSheet()

        # 常规字体(非粗体或斜体)

        ct = style['Normal']

        # 使用的字体s

        ct.fontName = 'SimSun'

        ct.fontSize = 14

        # 设置自动换行

        ct.wordWrap = 'CJK'

        # 居左对齐

        ct.alignment = 0

        # 第一行开头空格

        ct.firstLineIndent = 32

        # 设置行距

        ct.leading = 30

        text = Paragraph('程序员,是互联网、移动互联网和即将到来的物联网时期的弄潮儿。'

                         '这群特立独行的人才,不知平时最喜欢什么?他们的兴趣真想让人一探究竟。'

                         '经过七七49天的调研,终于形成了一份不具备权威性的统计报告--《程序员2019年上半年兴趣调查报告》,现公布出来,以飨读者。', ct)

       return text

 

    # 绘制表格

    @staticmethod

    def draw_table(*args):

        col_width = 60

        style = [

            ('FONTNAME', (0, 0), (-1, -1), 'SimSun'),  # 字体

            ('BACKGROUND', (0, 0), (-1, 0), '#d5dae6'),  # 设置第一行背景颜色

            ('ALIGN', (0, 0), (-1, -1), 'CENTER'),  # 对齐

            ('VALIGN', (-1, 0), (-2, 0), 'MIDDLE'),  # 对齐

            ('GRID', (0, 0), (-1, -1), 0.5, colors.grey),  # 设置表格框线为grey色,线宽为0.5

        ]

        table = Table(args, colWidths=col_width, style=style)

        return table

 

    # 创建图表

    @staticmethod

    def draw_bar(bar_data=[], ax=[], items=[]):

        drawing = Drawing(500, 250)

        bc = VerticalBarChart()

        bc.x = 35

        bc.y = 100

        bc.height = 120

        bc.width = 350

        bc.data = bar_data

        bc.strokeColor = colors.black

        bc.valueAxis.valueMin = 0

        bc.valueAxis.valueMax = 100

        bc.valueAxis.valueStep = 10

        bc.categoryAxis.labels.dx = 8

        bc.categoryAxis.labels.dy = -10

        bc.categoryAxis.labels.angle = 20

        bc.categoryAxis.categoryNames = ax

        # 图示

        leg = Legend()

        leg.fontName = 'SimSun'

        leg.alignment = 'right'

        leg.boxAnchor = 'ne'

        leg.x = 465

        leg.y = 220

        leg.dxTextSpace = 10

        leg.columnMaximum = 3

        leg.colorNamePairs = items

        drawing.add(leg)

        drawing.add(bc)

        return drawing

 

 

if __name__ == "__main__":

    content = list()

    # 添加标题

    content.append(Graphs.draw_title())

    # 添加段落

    content.append(Graphs.draw_text())

    # 添加表格数据

    data = [('兴趣', '2019-1', '2019-2', '2019-3', '2019-4', '2019-5', '2019-6'),

            ('开发', 50, 80, 60, 35, 40, 45),

            ('编程', 25, 60, 55, 45, 60, 80),

            ('敲代码', 30, 90, 75, 80, 50, 46)]

    content.append(Graphs.draw_table(*data))

    # 添加图表

    b_data = [(50, 80, 60, 35, 40, 45), (25, 60, 55, 45, 60, 80), (30, 90, 75, 80, 50, 46)]

    ax_data = ['2019-1', '2019-2', '2019-3', '2019-4', '2019-5', '2019-6']

    leg_items = [(colors.red, '开发'), (colors.green, '编程'), (colors.blue, '敲代码')]

    content.append(Graphs.draw_bar(b_data, ax_data, leg_items))

    # 生成pdf文件

    doc = SimpleDocTemplate('report.pdf', pagesize=letter)

    doc.build(content)

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转载自blog.csdn.net/a_faint_hope/article/details/90313580