java腾讯经纬度转高德

在Java中，将腾讯经纬度转换为高德经纬度可以使用第三方库进行实现。以下是一个例子：

首先，你需要导入第三方库"org.apache.commons.codec.digest"和"gson"，这些库都可以通过Maven或Gradle进行引入。

使用以下代码片段来进行经纬度的转换：

import org.apache.commons.codec.binary.Hex;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;

public class TencentToAmapConverter {
    private static final String KEY = "your_amap_key";
    private static final String SECRET = "your_amap_secret";

    public static void main(String[] args) {
        double tencentLng = 113.937255;
        double tencentLat = 22.539111;
        String location = tencentLng + "," + tencentLat;

        String sig = generateSignature(location);
        try {
            String response = HttpRequest.sendGet("https://restapi.amap.com/v3/assistant/coordinate/convert",
                    "locations=" + location + "&coordsys=tencent&output=json&key=" + KEY + "&sig=" + sig);
            JsonObject convertedLocation = JsonParser.parseString(response)
                    .getAsJsonObject().get("locations").getAsJsonArray().get(0).getAsJsonObject();
            double amapLng = convertedLocation.get("lng").getAsDouble();
            double amapLat = convertedLocation.get("lat").getAsDouble();

            System.out.println("腾讯经纬度: " + tencentLng + ", " + tencentLat);
            System.out.println("高德经纬度: " + amapLng + ", " + amapLat);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String generateSignature(String location) {
        String rawData = "/v3/assistant/coordinate/convert?coordsys=tencent&locations=" + location + "&output=json&key="
                + KEY + SECRET;
        return sha1Hex(rawData);
    }

    private static String sha1Hex(String rawData) {
        try {
            MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
            byte[] digest = messageDigest.digest(rawData.getBytes(StandardCharsets.UTF_8));
            return new String(Hex.encodeHex(digest, false));
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return "";
        }
    }
}

class HttpRequest {
    public static String sendGet(String url, String params) throws IOException {
        // 省略实现细节，可以使用HttpURLConnection或OkHttp等进行发送网络请求
        return "";
    }
}

这段代码将腾讯经纬度转换为高德经纬度，并通过在高德开放平台上申请的key来进行签名，确保安全性。请替换代码中的"your_amap_key"和"your_amap_secret"为你在高德开放平台上获得的key和secret。