获取淘宝商品分类详情API，抓取淘宝全品类目API接口分享(代码展示、参数说明）

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.Charset;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.PrintWriter;
import java.net.URLConnection;
public class Example {
  private static String readAll(Reader rd) throws IOException {
    StringBuilder sb = new StringBuilder();
    int cp;
    while ((cp = rd.read()) != -1) {
      sb.append((char) cp);
    }
    return  sb.toString();
  }
  public static JSONObject postRequestFromUrl(String url, String body) throws IOException, JSONException {
    URL realUrl = new URL(url);
    URLConnection conn = realUrl.openConnection();
    conn.setDoOutput(true);
    conn.setDoInput(true);
    PrintWriter out = new PrintWriter(conn.getOutputStream());
    out.print(body);
    out.flush();
    InputStream instream = conn.getInputStream();
    try {
      BufferedReader rd = new BufferedReader(new InputStreamReader(instream, Charset.forName("UTF-8")));
      String jsonText = readAll(rd);
      JSONObject json = new JSONObject(jsonText);
      return json;
    } finally {
      instream.close();
    }
  }
  public static JSONObject getRequestFromUrl(String url) throws IOException, JSONException {
    URL realUrl = new URL(url);
    URLConnection conn = realUrl.openConnection();
    InputStream instream = conn.getInputStream();
    try {
      BufferedReader rd = new BufferedReader(new InputStreamReader(instream, Charset.forName("UTF-8")));
      String jsonText = readAll(rd);
      JSONObject json = new JSONObject(jsonText);
      return json;
    } finally {
      instream.close();
    }
  }
  public static void main(String[] args) throws IOException, JSONException {
    // 请求示例 url 默认请求参数已经URL编码处理
    String url = "https://vx-15870092527.cn/taobao/cat_get/?key=<您自己的apiKey>&secret=<您自己的apiSecret>&cid=16";
    JSONObject json = getRequestFromUrl(url);
    System.out.println(json.toString());
  }
}