python调用高德API查询两点间的路线规划

采用的是python+Flask

功能说明

输入设置：

在起点/终点输入框中输入位置

选择出行方式（步行/骑行/驾车）

路线规划：

点击"规划路线"按钮获取路线

地图显示规划路线（蓝色线条）

显示起点（绿色）和终点（红色）标记

右侧显示路线距离和预计时间

交互功能：

地图支持缩放、拖动

可切换不同出行方式重新规划

整体实现效果如图：

文件结构：

/project-root
├── app.py # Flask主程序
├── config.py # 配置文件
├── templates
│ └── index.html # 前端页面
└── static
└── style.css # 样式文件

1. 配置文件 (config.py)

# 填入从高德地图获取的API Key
AMAP_WEB_API_KEY = '你的Web服务API Key'  # 用于后端API调用
AMAP_JS_API_KEY = '你的JavaScript API Key'  # 用于前端地图显示

2. Flask主程序 (app.py)

from flask import Flask, render_template, request, jsonify
import requests
import config

app = Flask(__name__)

# 高德API端点
AMAP_GEOCODE_API = "https://restapi.amap.com/v3/geocode/geo"
AMAP_ROUTE_API = {
   
    "walking": "https://restapi.amap.com/v3/direction/walking",
    "driving": "https://restapi.amap.com/v3/direction/driving",
    "bicycling": "https://restapi.amap.com/v4/direction/bicycling"
}

# 出行方式映射
MODE_MAPPING = {
   
    "walking": "walking",
    "bicycling": "bicycling",
    "driving": "driving"
}


def geocode_address(address):
    """将地址转换为坐标"""
    params = {
   
        "key": config.AMAP_WEB_API_KEY,
        "address": address,
        "output": "JSON"
    }
    response = requests.get(AMAP_GEOCODE_API, params=params)
    result = response.json()

    print(f"地理编码响应: {
     result}")  # 调试日志

    if result.get("status") == "1" and result.get("geocodes"):
        location = result["geocodes"][0]["location"]
        return location
    return None


@app.route('/')
def index():
    return render_template('index.html', js_api_key=config.AMAP_JS_API_KEY)


@app.route('/get_route', methods=['POST'])
def get_route():
    data = request.json
    start_address = data['start']
    end_address = data['end']
    mode = MODE_MAPPING.get(data['mode'], 'walking')

    # 地理编码：将地址转换为坐标
    start_location = geocode_address(start_address)
    end_location = geocode_address(end_address)

    print(f"起点坐标: {
     start_location}, 终点坐标: {
     end_location}")  # 调试日志

    if not start_location or not end_location:
        return jsonify({
   
            "status": "error",
            "message": "地址解析失败，请检查输入"
        })

    # 构建请求参数
    params = {
   
        "key": config.AMAP_WEB_API_KEY,
        "origin": start_location,
        "destination": end_location
    }

    try:
        # 获取对应模式的API URL
        url = AMAP_ROUTE_API[mode]

        print(f"请求URL: {
     url}")
        print(f"请求参数: {
     params}")

        response = requests.get(url, params=params)
        result = response.json()

        print(f"高德API响应: {
     result}")  # 调试日志

        # 处理骑行API的响应
        if mode == "bicycling":
            if result.get("errcode") == 0 and result.get("data", {
   }).get("paths"):
                path_info = result["data"]["paths"][0]

                # 解析坐标点 - 骑行数据包含多个steps，每个step有polyline
                points = []
                for step in path_info["steps"]:
                    if "polyline" in step and step["polyline"]:
                        polyline = step["polyline"