172 lines
3.3 KiB
Go
172 lines
3.3 KiB
Go
package main
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import (
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"bufio"
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"encoding/hex"
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"fmt"
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"io"
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"log"
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"net"
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"os"
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"path/filepath"
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"strings"
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"time"
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"unicode/utf8"
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"weatherstation/config"
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"weatherstation/model"
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)
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type UTF8Writer struct {
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w io.Writer
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}
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func NewUTF8Writer(w io.Writer) *UTF8Writer {
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return &UTF8Writer{w: w}
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}
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func (w *UTF8Writer) Write(p []byte) (n int, err error) {
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if utf8.Valid(p) {
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return w.w.Write(p)
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}
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s := string(p)
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s = strings.ToValidUTF8(s, "<22>")
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return w.w.Write([]byte(s))
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}
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func setupLogger() {
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logDir := "log"
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if _, err := os.Stat(logDir); os.IsNotExist(err) {
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os.MkdirAll(logDir, 0755)
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}
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currentTime := time.Now()
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logFileName := filepath.Join(logDir, fmt.Sprintf("%s.log", currentTime.Format("2006-01-02")))
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logFile, err := os.OpenFile(logFileName, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
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if err != nil {
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log.Fatalf("无法创建日志文件: %v", err)
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}
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bufferedWriter := bufio.NewWriter(logFile)
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utf8Writer := NewUTF8Writer(bufferedWriter)
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go func() {
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for {
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time.Sleep(1 * time.Second)
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bufferedWriter.Flush()
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}
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}()
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multiWriter := io.MultiWriter(os.Stdout, utf8Writer)
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log.SetOutput(multiWriter)
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log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
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}
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func main() {
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setupLogger()
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cfg := config.GetConfig()
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err := model.InitDB()
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if err != nil {
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log.Fatalf("初始化数据库失败: %v", err)
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}
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defer model.CloseDB()
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addr := fmt.Sprintf(":%d", cfg.Server.UDPPort)
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conn, err := net.ListenPacket("udp", addr)
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if err != nil {
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log.Fatalf("无法监听UDP端口 %d: %v", cfg.Server.UDPPort, err)
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}
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defer conn.Close()
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log.Printf("UDP服务器已启动，监听端口 %d...", cfg.Server.UDPPort)
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buffer := make([]byte, 2048)
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for {
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n, addr, err := conn.ReadFrom(buffer)
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if err != nil {
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log.Printf("读取数据错误: %v", err)
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continue
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}
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rawData := buffer[:n]
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data := string(rawData)
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log.Printf("从 %s 接收到 %d 字节数据", addr.String(), n)
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weatherData, err := model.ParseWeatherData(data)
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if err != nil {
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log.Printf("解析数据失败: %v", err)
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hexDump := hexDump(rawData)
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log.Printf("原始码流(十六进制):\n%s", hexDump)
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asciiDump := asciiDump(rawData)
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log.Printf("ASCII码:\n%s", asciiDump)
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continue
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}
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log.Println("成功解析气象站数据:")
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log.Println(weatherData)
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err = model.SaveWeatherData(weatherData, data)
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if err != nil {
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log.Printf("保存数据到数据库失败: %v", err)
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} else {
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log.Printf("数据已成功保存到数据库")
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}
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}
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}
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func hexDump(data []byte) string {
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var result strings.Builder
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for i := 0; i < len(data); i += 16 {
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end := i + 16
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if end > len(data) {
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end = len(data)
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}
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chunk := data[i:end]
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hexStr := hex.EncodeToString(chunk)
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for j := 0; j < len(hexStr); j += 2 {
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if j+2 <= len(hexStr) {
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result.WriteString(strings.ToUpper(hexStr[j : j+2]))
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result.WriteString(" ")
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}
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}
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result.WriteString("\n")
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}
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return result.String()
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}
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func asciiDump(data []byte) string {
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var result strings.Builder
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for i := 0; i < len(data); i += 64 {
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end := i + 64
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if end > len(data) {
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end = len(data)
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}
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chunk := data[i:end]
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for _, b := range chunk {
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if b >= 32 && b <= 126 {
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result.WriteByte(b)
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} else {
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result.WriteString(".")
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}
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}
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result.WriteString("\n")
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}
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return result.String()
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}
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