java的httpget调用formdata

Java的HttpGet通常用于发送HTTP GET请求，而FormData通常是用于发送HTTP POST请求的一种数据格式。因此，HttpGet通常不会直接涉及到FormData的调用。

当需要使用Java发送HTTP POST请求，并携带FormData时，通常会使用HttpClient库。下面是一个使用HttpClient发送带有FormData的HTTP POST请求的示例代码：

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class HttpClientExample {
    public static void main(String[] args) {
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost("http://example.com/submit");

        // 设置FormData参数
        List<NameValuePair> formData = new ArrayList<>();
        formData.add(new BasicNameValuePair("name", "John"));
        formData.add(new BasicNameValuePair("age", "25"));

        try {
            httpPost.setEntity(new UrlEncodedFormEntity(formData));

            HttpResponse response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();

            String responseString = EntityUtils.toString(entity);
            System.out.println("Response: " + responseString);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

以上代码演示了如何使用HttpClient库发送HTTP POST请求，并在请求中携带FormData。请注意，为了运行该代码，您需要先添加HttpClient库的依赖。