httpClient 发送post请求 携带四个参数 String domainId,String tableName,String date,String keyword

可以使用以下代码来发送带参数的POST请求：

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HttpClientExample {
    public static void main(String[] args) throws IOException {
        String url = "http://example.com/api";
        HttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost(url);

        // 设置请求参数
        String domainId = "exampleDomainId";
        String tableName = "exampleTableName";
        String date = "2022-01-01";
        String keyword = "exampleKeyword";
        String requestParams = "{\"domainId\":\"" + domainId + "\",\"tableName\":\"" + tableName + "\",\"date\":\"" + date + "\",\"keyword\":\"" + keyword + "\"}";
        httpPost.setEntity(new StringEntity(requestParams));

        // 发送请求
        HttpResponse response = httpClient.execute(httpPost);
        HttpEntity entity = response.getEntity();

        // 处理响应
        String responseString = EntityUtils.toString(entity);
        System.out.println(responseString);
    }
}

这个例子使用了Apache HttpComponents库，所以需要在项目中添加以下依赖：

<dependencies>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.13</version>
    </dependency>
</dependencies>