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- // ============================================================================
- // stockquote.go — 股票行情
- //
- // 拉取腾讯行情、分时与日 K 数据;区分交易时段 / 休市刷新间隔。
- // ============================================================================
- package main
- import (
- "encoding/json"
- "fmt"
- "io"
- "net/http"
- "strconv"
- "strings"
- "time"
- "golang.org/x/text/encoding/simplifiedchinese" // 腾讯行情接口返回 GBK,需要转码
- "golang.org/x/text/transform"
- )
- // 行情接口地址
- const (
- quoteAPIURL = "https://qt.gtimg.cn/q=" // 实时行情
- minuteAPIURL = "https://web.ifzq.gtimg.cn/appstock/app/minute/query?code=" // 分时数据
- klineAPIURL = "https://web.ifzq.gtimg.cn/appstock/app/fqkline/get?param=" // 日 K 数据
- )
- // StockQuote 单只股票的行情快照,供前端「股市」页展示
- type StockQuote struct {
- Code string `json:"code"` // 带市场前缀的代码,如 sh600519
- Name string `json:"name"` // 股票名称
- Price float64 `json:"price"` // 当前价
- Change float64 `json:"change"` // 涨跌额
- ChangePercent float64 `json:"changePercent"` // 涨跌幅(%)
- Amount float64 `json:"amount"` // 成交额(万元)
- Time string `json:"time"` // 行情时间 HH:MM:SS
- }
- // MinutePoint 分时图上的一个点
- type MinutePoint struct {
- Time string `json:"time"` // HH:MM
- Price float64 `json:"price"` // 当前价
- Avg float64 `json:"avg"` // 均价
- }
- // MinuteChart 分时图数据
- type MinuteChart struct {
- Code string `json:"code"` // 股票代码
- PrevClose float64 `json:"prevClose"` // 昨收,作为分时基准线
- Points []MinutePoint `json:"points"` // 分时点序列
- }
- // KLineBar 日 K 的一根柱子
- type KLineBar struct {
- Date string `json:"date"` // 交易日
- Open float64 `json:"open"` // 开盘价
- Close float64 `json:"close"` // 收盘价
- High float64 `json:"high"` // 最高价
- Low float64 `json:"low"` // 最低价
- Volume float64 `json:"volume"` // 成交量(手)
- }
- // normalizeStockCode 规范化股票代码:纯数字自动补全市场前缀
- func normalizeStockCode(raw string) string {
- code := strings.ToLower(strings.TrimSpace(raw))
- if code == "" {
- return ""
- }
- if strings.HasPrefix(code, "sh") || strings.HasPrefix(code, "sz") || strings.HasPrefix(code, "bj") {
- return code // 已带前缀,直接使用
- }
- switch {
- case strings.HasPrefix(code, "6"), strings.HasPrefix(code, "5"), strings.HasPrefix(code, "9"):
- return "sh" + code // 沪市:60/68 等,也包含 5 开头基金、9 开头 B 股
- case strings.HasPrefix(code, "0"), strings.HasPrefix(code, "3"):
- return "sz" + code // 深市:00 主板、30 创业板
- case strings.HasPrefix(code, "4"), strings.HasPrefix(code, "8"):
- return "bj" + code // 北交所:43/83/87 等
- }
- return code
- }
- // fetchStockQuotes 从腾讯行情接口批量拉取股票行情
- func fetchStockQuotes(codes []string) ([]StockQuote, error) {
- if len(codes) == 0 {
- return []StockQuote{}, nil // 未配置股票时返回空列表
- }
- url := quoteAPIURL + strings.Join(codes, ",") // 批量查询,逗号分隔
- client := &http.Client{Timeout: 8 * time.Second}
- req, err := http.NewRequest(http.MethodGet, url, nil)
- if err != nil {
- return nil, err
- }
- req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64)") // 部分接口会校验 UA
- req.Header.Set("Referer", "https://gu.qq.com/")
- resp, err := client.Do(req)
- if err != nil {
- return nil, err
- }
- defer resp.Body.Close()
- // 腾讯接口为 GBK 编码,先整体转成 UTF-8 再解析
- body, err := io.ReadAll(transform.NewReader(resp.Body, simplifiedchinese.GBK.NewDecoder()))
- if err != nil {
- return nil, err
- }
- quotes := make([]StockQuote, 0, len(codes))
- for _, line := range strings.Split(string(body), ";") { // 每只股票一行,以分号分隔
- quote, ok := parseQuoteLine(line)
- if ok {
- quotes = append(quotes, quote)
- }
- }
- return quotes, nil
- }
- // parseQuoteLine 解析单行行情:v_sh600519="1~贵州茅台~600519~价格~...";
- func parseQuoteLine(line string) (StockQuote, bool) {
- line = strings.TrimSpace(line)
- idx := strings.Index(line, "=\"")
- if idx < 0 {
- return StockQuote{}, false
- }
- payload := strings.Trim(strings.TrimSpace(line[idx+2:]), `";`) // 去掉包裹的引号与分号
- fields := strings.Split(payload, "~")
- if len(fields) < 38 {
- return StockQuote{}, false // 字段不足,视为无效行
- }
- return StockQuote{
- Code: fields[2],
- Name: fields[1],
- Price: parseQuoteFloat(fields[3]),
- Change: parseQuoteFloat(fields[31]),
- ChangePercent: parseQuoteFloat(fields[32]),
- Amount: parseQuoteFloat(fields[37]), // 成交额,单位:万元
- Time: formatQuoteTime(fields[30]),
- }, true
- }
- // fetchMinuteChart 拉取分时数据:time 分值 price avg
- func fetchMinuteChart(code string) (MinuteChart, error) {
- chart := MinuteChart{Code: code, Points: []MinutePoint{}}
- // 先取报价,用「现价 - 涨跌额」得到昨收,作为分时基准线
- quote, err := fetchSingleQuote(code)
- if err != nil {
- return chart, err
- }
- chart.PrevClose = quote.Price - quote.Change
- var payload minutePayload
- if err := httpGetJSON(minuteAPIURL+code, &payload); err != nil {
- return chart, err
- }
- item, ok := payload.Data[code]
- if !ok {
- return chart, fmt.Errorf("未获取到 %s 的分时数据", code)
- }
- var totalVolume, totalAmount float64
- for _, line := range item.Data.Data {
- fields := strings.Fields(line) // 形如:0930 1349.99 1486 200608514.00
- if len(fields) < 4 {
- continue
- }
- price := parseQuoteFloat(fields[1])
- volume := parseQuoteFloat(fields[2]) // 成交量(手)
- amount := parseQuoteFloat(fields[3]) // 成交额(元)
- totalVolume += volume * 100 // 手 → 股
- totalAmount += amount // 累计成交额
- avg := 0.0
- if totalVolume > 0 {
- avg = totalAmount / totalVolume // 均价 = 累计成交额 / 累计成交量
- }
- chart.Points = append(chart.Points, MinutePoint{
- Time: fields[0][0:2] + ":" + fields[0][2:4], // HHMM → HH:MM
- Price: price,
- Avg: avg,
- })
- }
- return chart, nil
- }
- // fetchKLine 拉取日 K 数据(前复权),返回最近 count 根
- func fetchKLine(code string, count int) ([]KLineBar, error) {
- if count <= 0 {
- count = 120 // 默认 120 个交易日
- }
- url := fmt.Sprintf("%s%s,day,,,%d,qfq", klineAPIURL, code, count)
- var payload klinePayload
- if err := httpGetJSON(url, &payload); err != nil {
- return nil, err
- }
- item, ok := payload.Data[code]
- if !ok {
- return nil, fmt.Errorf("未获取到 %s 的日K数据", code)
- }
- rows := item.QfqDay // 前复权数据优先,没有则退回原始日线
- if len(rows) == 0 {
- rows = item.Day
- }
- bars := make([]KLineBar, 0, len(rows))
- for _, row := range rows {
- if len(row) < 6 {
- continue // 数据不完整则跳过
- }
- // 前 6 项为 [日期, 开, 收, 高, 低, 量] 字符串;除权信息等附加字段忽略
- vals := make([]string, 6)
- for i := 0; i < 6; i++ {
- if err := json.Unmarshal(row[i], &vals[i]); err != nil {
- vals[i] = "" // 字段非字符串时置空,交给 parseQuoteFloat 归零
- }
- }
- bars = append(bars, KLineBar{
- Date: vals[0],
- Open: parseQuoteFloat(vals[1]),
- Close: parseQuoteFloat(vals[2]),
- High: parseQuoteFloat(vals[3]),
- Low: parseQuoteFloat(vals[4]),
- Volume: parseQuoteFloat(vals[5]),
- })
- }
- return bars, nil
- }
- // fetchSingleQuote 取单只股票报价(用于分时基准线)
- func fetchSingleQuote(code string) (StockQuote, error) {
- quotes, err := fetchStockQuotes([]string{code})
- if err != nil {
- return StockQuote{}, err
- }
- if len(quotes) == 0 {
- return StockQuote{}, fmt.Errorf("未获取到 %s 的报价", code)
- }
- return quotes[0], nil
- }
- // httpGetJSON 发起 GET 请求并解析 JSON(腾讯 web 接口为 UTF-8)
- func httpGetJSON(url string, target any) error {
- client := &http.Client{Timeout: 8 * time.Second}
- req, err := http.NewRequest(http.MethodGet, url, nil)
- if err != nil {
- return err
- }
- req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64)")
- req.Header.Set("Referer", "https://gu.qq.com/")
- resp, err := client.Do(req)
- if err != nil {
- return err
- }
- defer resp.Body.Close()
- body, err := io.ReadAll(resp.Body)
- if err != nil {
- return err
- }
- return json.Unmarshal(body, target)
- }
- // minutePayload 分时接口的响应结构(按股票代码动态嵌套)
- type minutePayload struct {
- Data map[string]struct {
- Data struct {
- Data []string `json:"data"` // "HHMM 价格 成交量 成交额"
- } `json:"data"`
- } `json:"data"`
- }
- // klinePayload 日 K 接口的响应结构
- type klinePayload struct {
- Data map[string]struct {
- // 前复权 / 原始日线。每行前 6 项固定为 [日期, 开, 收, 高, 低, 量] 字符串,
- // 除权除息日会追加第 7 个对象字段(除权信息),故用 RawMessage 以兼容任意类型。
- QfqDay [][]json.RawMessage `json:"qfqday"`
- Day [][]json.RawMessage `json:"day"`
- } `json:"data"`
- }
- // parseQuoteFloat 解析浮点字段,失败时返回 0
- func parseQuoteFloat(raw string) float64 {
- value, err := strconv.ParseFloat(strings.TrimSpace(raw), 64)
- if err != nil {
- return 0
- }
- return value
- }
- // formatQuoteTime 将 20231028160001 格式化为 16:00:01
- func formatQuoteTime(raw string) string {
- if len(raw) < 14 {
- return raw
- }
- return raw[8:10] + ":" + raw[10:12] + ":" + raw[12:14]
- }
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