java http请求demo
时间: 2023-05-19 08:05:30 浏览: 58
以下是一个简单的 Java HTTP 请求示例:
```java
import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class HttpDemo {
public static void main(String[] args) {
try {
URL url = new URL("http://example.com/api");
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("GET");
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println(response.toString());
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
}
}
```
这个示例使用了 `HttpURLConnection` 类来发送 HTTP GET 请求,并读取响应内容。你可以根据需要修改请求方法、请求头、请求体等内容。