url为 http://ip:prot/open/mqm/publish 请求方式为post 如何在java中调接口

您可以使用Java中的HttpURLConnection类来调用这个接口。以下是一个示例：

import java.net.HttpURLConnection;
import java.net.URL;
import java.io.OutputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class ApiCaller {
    public static void main(String[] args) throws Exception {
        String url = "http://ip:port/open/mqm/publish";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // 设置请求方法
        con.setRequestMethod("POST");

        // 设置请求头
        con.setRequestProperty("Content-Type", "application/json");

        // 设置请求体
        String requestBody = "{\"key1\":\"value1\",\"key2\":\"value2\"}";
        con.setDoOutput(true);
        OutputStream os = con.getOutputStream();
        os.write(requestBody.getBytes());
        os.flush();
        os.close();

        // 发起请求并获取响应
        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();

        // 打印响应结果
        System.out.println("Response Code : " + responseCode);
        System.out.println("Response Body : " + response.toString());
    }
}

请注意，这是一个基本示例，您需要根据实际情况进行调整。例如，您需要更改请求头、请求体和响应处理方法。