Java Http（application/x-www-form-urlencoded）post请求方式代码示例

好的，以下是Java Http的application/x-www-form-urlencoded的post请求方式的代码示例：

import java.net.*;
import java.io.*;

public class HttpPostRequest {
    public static void main(String[] args) throws Exception {
        String url = "http://example.com/api";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // 设置post请求方式
        con.setRequestMethod("POST");

        // 设置请求头信息
        con.setRequestProperty("User-Agent", "Mozilla/5.0");
        con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
        con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        // 设置post请求参数
        String urlParameters = "param1=value1&param2=value2&param3=value3";

        // 发起post请求
        con.setDoOutput(true);
        OutputStream os = con.getOutputStream();
        os.write(urlParameters.getBytes());
        os.flush();
        os.close();

        // 获取响应内容
        int responseCode = con.getResponseCode();
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // 打印响应内容
        System.out.println(response.toString());
    }
}

希望对您有所帮助！