go pdf支持中文

爱被打了一巴掌 2023-02-25 07:07 16阅读 0赞

### go支持中文的pdf包，终于找到了，然后记录下呗~~~ ###

1.      温馨提示：
        字体 ：C:/websocket/simkai.ttf 去你电脑拷贝下字体过来就行了
2.    文件C:/websocket/dog.txt,我这是读取舔狗日记的文本内容然后输入到pdf里面,然后你懂的，不想这个麻烦你直接在DogString赋值就行了
3.    图片 C:/websocket/logo\_dog.png是给pdf盖个章

参考代码：

package main
    
    import (
    	"bufio"
    	"fmt"
    	"github.com/tiechui1994/gopdf"
    	"github.com/tiechui1994/gopdf/core"
    	"io"
    	"os"
    	"strings"
    )
    
    var (
    	DogString string
    	FontType 	= "黑体"
    	titleFont   = core.Font{Family: FontType, Size: 22}
    	contentFont = core.Font{Family: FontType, Size: 14}
    )
    
    //处理换行符号,不处理的话pdf会有问题的哦
    func Br2N(s string)(newString string){
    	s = strings.ReplaceAll(s,"<br>"," \n")
    	s = strings.ReplaceAll(s,"<br >"," \n")
    	s = strings.ReplaceAll(s,"\r\n"," \n")
    	newString = strings.ReplaceAll(s,"<br />"," \n")
    
    	newString = s
    	return newString
    }
    
    func main(){
    
    	wFile,fErr:=os.OpenFile("C:/websocket/dog.txt",os.O_RDWR|os.O_CREATE,0666)
    	if fErr!=nil{
    		fmt.Println(fErr)
    	}
    	defer wFile.Close()
    
    	reader:=bufio.NewReader(wFile)
    
    	dog :=  make([]string,99999)
    
    
    	for{
    		readString,rerror:=reader.ReadString('\n')//读取到换行就结束
    		if rerror==io.EOF{
    			break//io.EOF表示文件的末尾
    		}
    
    		//输出内容
    		//fmt.Println(readString)
    		dog = append(dog, readString)
    		DogString = DogString+"<br>"+readString
    	}
    
    	r := core.CreateReport()
    	font1 := core.FontMap{
    		FontName: FontType,
    		FileName: "C:/websocket/simkai.ttf",
    	}
    
    	r.SetFonts([]*core.FontMap{&font1})
    	r.SetPage("A4", "P")
    
    
    	r.RegisterExecutor(core.Executor(content), core.Detail)//内容
    
    	//r.FisrtPageNeedHeader = true//需要页眉
    	//r.RegisterExecutor(core.Executor(PDF_header), core.Header)//页眉
    
    	r.FisrtPageNeedFooter = true//需要页脚
    	r.RegisterExecutor(core.Executor(PDF_footer), core.Footer)//页脚
    
    	r.Execute("666.pdf")//生成的pdf文件名称
    }
    
    func content(report *core.Report){
    	var (
    		lineSpace = 1.0
    		lineHight = 16.0
    	)
    
    	//title := gopdf.NewDivWithWidth(415, lineHight, lineSpace, report)
    	title := gopdf.NewSpan(22, 0, report)
    	title.VerticalCentered()
    	title.SetFont(titleFont)//标题的字体
    	title.SetFontColor("0,0,0")//黑色
    	err := title.HorizontalCentered().SetContent("舔狗日志合集 \n\n").GenerateAtomicCell()
    	if err!=nil{
    		fmt.Println("content_title:",err)
    	}
    
    	//加入图片,图片不能是gif,gif会解析出错的
    	qrcodeFile := "C:/websocket/logo_dog.png"
    	im := gopdf.NewImageWithWidthAndHeight(qrcodeFile, 125, 35, report)//125*35px
    	im.SetMargin(core.Scope{Left: 260, Top: -20})
    	logoErr:=im.GenerateAtomicCell()
    	if logoErr!=nil{
    		fmt.Println("content_logo:",logoErr)
    	}
    
    	text := Br2N(DogString)//内容
    	content := gopdf.NewDivWithWidth(415, lineHight, lineSpace, report)
    
    	//	return
    	content.SetFontColor("0,0,0")//黑色
    	pdfConnectErr := content.SetFont(contentFont).SetContent(text).GenerateAtomicCell()
    	if pdfConnectErr!=nil{
    		fmt.Println("pdfConnectErr:",pdfConnectErr)
    	}
    	report.SetMargin(0, 3)
    
    	//内容后面加入图片
    	logo := "C:/websocket/wang.png"
    	im2  := gopdf.NewImageWithWidthAndHeight(logo, 70, 70, report)
    	im2.SetMargin(core.Scope{Left: 415, Top:30})
    	logo2Err:=im2.GenerateAtomicCell()
    	if logo2Err!=nil{
    		fmt.Println("content_logo2:",logo2Err)
    	}
    
    }
    
    func PDF_footer(report *core.Report) {
    	//content := fmt.Sprintf("第 %v / {#TotalPage#} 页", report.GetCurrentPageNo())
    	content := fmt.Sprintf("%v / {#TotalPage#}", report.GetCurrentPageNo())
    
    	footer := gopdf.NewSpan(10, 0, report)
    	//footer.VerticalCentered()
    	footer.SetFont(contentFont)
    	footer.SetFontColor("169,169,169")//深灰色
    	err := footer.HorizontalCentered().SetContent(content).GenerateAtomicCell()
    	if err!=nil{
    		fmt.Println("PDF_footer:",err)
    	}
    }
    func PDF_header(report *core.Report) {
    	content := "~~~~~~~~~~~~~~~这是页眉~~~~~~~~~~~~~~~"
    	header := gopdf.NewSpan(10, 0, report)
    	//header.VerticalCentered()
    	header.SetFont(contentFont)
    	header.SetFontColor("169,169,169")//深灰色
    	header.SetBorder(core.Scope{Top: 15})
    	err := header.HorizontalCentered().SetContent(content).GenerateAtomicCell()
    	if err!=nil{
    		fmt.Println("PDF_header:",err)
    	}
    }

**最后效果差不多就这样吧，位置自己调试，调到最合适的位置就好看了吧....**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3NTE3Mzc3_size_16_color_FFFFFF_t_70][]

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