如何在java中将动态json键映射到post请求的对象。

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.12.5</version>
</dependency>

public class RequestObject {
    private String key1;
    private String key2;
    // 其他字段

    // 构造函数、getter和setter方法
}

import com.fasterxml.jackson.databind.ObjectMapper;

// ...

public void handlePostRequest(String json) {
    ObjectMapper objectMapper = new ObjectMapper();
    try {
        RequestObject requestObject = objectMapper.readValue(json, RequestObject.class);
        // 使用requestObject进行后续处理
    } catch (IOException e) {
        // 处理JSON解析异常
    }
}

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

// ...

public void sendPostRequest(String url, String json) {
    try {
        URL requestUrl = new URL(url);
        HttpURLConnection connection = (HttpURLConnection) requestUrl.openConnection();
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
        connection.setRequestProperty("Content-Type", "application/json");

        OutputStream outputStream = connection.getOutputStream();
        outputStream.write(json.getBytes());
        outputStream.flush();
        outputStream.close();

        // 处理响应
        // ...
    } catch (Exception e) {
        // 处理异常
    }
}