使用Go解析.ini配置文件格式的操作教程

# 系统配置
[server]
host = 127.0.0.1
port = 8080

[database]
user = root
password = 123456
dbname = testdb

package main

import (
    "bufio"
    "fmt"
    "os"
    "strings"
)

func parseINI(filePath string) (map[string]map[string]string, error) {
    config := make(map[string]map[string]string)
    var currentSection string

    file, err := os.Open(filePath)
    if err != nil {
        return nil, err
    }
    defer file.Close()

    scanner := bufio.NewScanner(file)

    for scanner.Scan() {
        line := strings.TrimSpace(scanner.Text())

        // 忽略注释和空行
        if line == "" || strings.HasPrefix(line, "#") || strings.HasPrefix(line, ";") {
            continue
        }

        // 处理 section
        if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
            currentSection = strings.TrimSpace(line[1 : len(line)-1])
            config[currentSection] = make(map[string]string)
        } else {
            // 处理 key=value
            parts := strings.SplitN(line, "=", 2)
            if len(parts) == 2 && currentSection != "" {
                key := strings.TrimSpace(parts[0])
                value := strings.TrimSpace(parts[1])
                config[currentSection][key] = value
            }
        }
    }

    if err := scanner.Err(); err != nil {
        return nil, err
    }

    return config, nil
}

func main() {
    iniPath := "config.ini"
    config, err := parseINI(iniPath)
    if err != nil {
        fmt.Println("解析失败:", err)
        return
    }

    // 打印解析结果
    for section, kv := range config {
        fmt.Println("[" + section + "]")
        for key, value := range kv {
            fmt.Printf("%s = %s\n", key, value)
        }
        fmt.Println()
    }
}

[server]
host = 127.0.0.1
port = 8080

[database]
user = root
password = 123456
dbname = testdb