httpclient发送post请求 参数 integer

发送 POST 请求时，可以通过设置请求体来传递参数。如果参数是整数类型，可以将其转换为字符串类型并设置到请求体中。以下是使用 Apache HttpClient 发送带有整数参数的 POST 请求的示例代码：

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;

public class HttpClientPostExample {

    public static void main(String[] args) throws Exception {
        CloseableHttpClient httpClient = HttpClients.createDefault();

        // 设置请求参数
        List<NameValuePair> params = new ArrayList<>();
        params.add(new BasicNameValuePair("param1", "123"));

        // 构建请求体
        HttpEntity entity = new StringEntity("param1=123", ContentType.APPLICATION_FORM_URLENCODED);

        // 构建请求 URI
        URI uri = new URIBuilder()
                .setScheme("http")
                .setHost("example.com")
                .setPath("/api")
                .build();

        // 构建 POST 请求
        HttpPost httpPost = new HttpPost(uri);
        httpPost.setEntity(entity);

        // 执行请求
        CloseableHttpResponse response = httpClient.execute(httpPost);
        try {
            HttpEntity responseEntity = response.getEntity();
            String result = EntityUtils.toString(responseEntity);
            System.out.println(result);
        } finally {
            response.close();
        }
    }
}

在上面的示例代码中，我们将整数参数设置为字符串类型，并将其放入请求体中。在构建请求体时，我们使用了 ContentType.APPLICATION_FORM_URLENCODED 类型，该类型表示请求体中包含 URL 编码的表单参数。在执行请求后，我们将响应结果转换为字符串并打印出来。