写一个 java http post请求代码示例
时间: 2023-05-24 09:03:13 浏览: 119
A:
```
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
public class HttpPostRequest {
public static void main(String[] args) throws IOException {
// 设置请求参数
String requestUrl = "http://www.example.com/api/v1/user";
// 设置请求头
String contentType = "application/json";
String authorization = "Bearer eyJhbGci...";
// 设置请求体
String requestBody = "{\"name\": \"John Doe\", \"age\": 30}";
// 发送POST请求
URL url = new URL(requestUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setRequestProperty("Content-Type", contentType);
conn.setRequestProperty("Authorization", authorization);
DataOutputStream out = new DataOutputStream(conn.getOutputStream());
out.write(requestBody.getBytes(StandardCharsets.UTF_8));
out.flush();
out.close();
// 获取响应结果
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), StandardCharsets.UTF_8));
StringBuilder response = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
response.append(line);
}
reader.close();
System.out.println(response.toString());
conn.disconnect();
}
}
```
上面的示例代码使用 HttpURLConnection 发送 HTTP POST 请求,并设置请求头、请求体,获取响应结果。注意,contentType 和 authorization 需要根据实际情况填写。