103 lines
2.0 KiB
Go
103 lines
2.0 KiB
Go
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package main
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import (
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"bytes"
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"fmt"
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"github.com/jung-kurt/gofpdf"
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"log"
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"net"
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"os/exec"
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"strings"
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)
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func printPDF() {
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cmd := exec.Command("powershell", "-ExecutionPolicy", "Bypass", "-File", "./print.ps1")
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var out bytes.Buffer
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var stderr bytes.Buffer
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cmd.Stdout = &out
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cmd.Stderr = &stderr
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// 运行命令
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err := cmd.Run()
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if err != nil {
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fmt.Println(fmt.Sprint(err) + ": " + stderr.String())
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return
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}
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fmt.Println("Output:", out.String())
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}
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func generatePDF(num string) {
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args := strings.Split(num, ",")
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pdf := gofpdf.NewCustom(&gofpdf.InitType{
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OrientationStr: "P",
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UnitStr: "mm",
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SizeStr: "A4",
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Size: gofpdf.SizeType{
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Wd: 80,
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Ht: 100,
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},
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FontDirStr: "",
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})
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pdf.AddUTF8Font("simhei", "", "./simhei.ttf")
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pdf.AddPage()
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pdf.SetFont("simhei", "", 24)
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pdf.SetXY(0, 0)
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pdf.CellFormat(60, 50, args[0], "", 0, "C", false, 0, "")
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pdf.SetFont("simhei", "", 100)
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pdf.SetXY(0, 25)
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pdf.CellFormat(60, 50, args[1], "", 0, "C", false, 0, "")
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err := pdf.OutputFileAndClose("./test.pdf")
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if err != nil {
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log.Fatalf("Failed to save PDF: %v", err)
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}
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fmt.Println("generate pdf success")
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}
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func handleConnection(conn net.Conn) {
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log.Printf("receive connection: %v", conn.RemoteAddr())
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defer func(conn net.Conn) {
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err := conn.Close()
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if err != nil {
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log.Fatalln(err)
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}
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}(conn)
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for {
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buf := make([]byte, 1024)
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n, err := conn.Read(buf)
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if err != nil {
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fmt.Println("服务器端的read err=", err)
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return
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}
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generatePDF(string(buf[:n]))
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printPDF()
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fmt.Printf("onMessage %s \n", string(buf[:n]))
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}
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}
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func main() {
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listener, err := net.Listen("tcp", ":8080")
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if err != nil {
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log.Fatalf("Failed to start server: %v", err)
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}
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defer func(listener net.Listener) {
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err := listener.Close()
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if err != nil {
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log.Fatalln(err)
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}
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}(listener)
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log.Println("Server started on :8080")
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for {
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conn, err := listener.Accept()
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if err != nil {
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log.Printf("Failed to accept connection: %v", err)
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continue
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}
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go handleConnection(conn)
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}
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}
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