91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package client
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"qd-sc/internal/config"
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"qd-sc/internal/model"
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"strings"
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)
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// AmapClient 高德地图客户端
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type AmapClient struct {
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baseURL string
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apiKey string
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cityName string
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httpClient *http.Client
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}
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// NewAmapClient 创建高德地图客户端
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func NewAmapClient(cfg *config.Config) *AmapClient {
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return &AmapClient{
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baseURL: cfg.Amap.BaseURL,
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apiKey: cfg.Amap.APIKey,
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cityName: cfg.City.Name,
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httpClient: NewHTTPClient(HTTPClientConfig{Timeout: cfg.Amap.Timeout, MaxIdleConns: 100, MaxIdleConnsPerHost: 50, MaxConnsPerHost: 0}),
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}
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}
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// SearchPlace 搜索地点，返回经纬度
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func (c *AmapClient) SearchPlace(keywords string) (*model.AmapPlaceResponse, error) {
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// 构建请求URL
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params := url.Values{}
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params.Set("key", c.apiKey)
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params.Set("keywords", keywords)
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params.Set("types", "190000") // 地名地址信息类型
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params.Set("city", c.cityName)
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params.Set("output", "JSON")
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reqURL := fmt.Sprintf("%s/place/text?%s", c.baseURL, params.Encode())
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resp, err := c.httpClient.Get(reqURL)
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if err != nil {
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return nil, fmt.Errorf("HTTP请求失败: %w", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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body, _ := io.ReadAll(resp.Body)
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return nil, fmt.Errorf("API返回错误状态码 %d: %s", resp.StatusCode, string(body))
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}
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var result model.AmapPlaceResponse
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if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
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return nil, fmt.Errorf("解析响应失败: %w", err)
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}
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if result.Status != "1" {
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return nil, fmt.Errorf("高德API返回错误: %s", result.Info)
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}
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return &result, nil
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}
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// GetLocationCoordinates 获取地点的经纬度坐标
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func (c *AmapClient) GetLocationCoordinates(keywords string) (latitude, longitude string, err error) {
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result, err := c.SearchPlace(keywords)
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if err != nil {
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return "", "", err
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}
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if len(result.Pois) == 0 {
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return "", "", fmt.Errorf("未找到地点: %s", keywords)
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}
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// 取第一个结果
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location := result.Pois[0].Location
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parts := strings.Split(location, ",")
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if len(parts) != 2 {
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return "", "", fmt.Errorf("解析坐标失败: %s", location)
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}
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// 高德返回的格式是"经度,纬度"
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longitude = parts[0]
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latitude = parts[1]
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return latitude, longitude, nil
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}
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