Java网络编程:HTTP请求响应实例
在Java中,我们可以使用Apache HttpClient库来发送HTTP请求并接收响应。以下是一个简单的HTTP GET请求响应的实例:
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
public class HttpRequestExample {
public static void main(String[] args) {
// 创建HttpClient实例
CloseableHttpClient httpClient = HttpClients.createDefault();
try {
// 创建HttpGet请求对象
HttpGet httpGet = new HttpGet("http://example.com/api/data"); // 替换为实际URL
// 执行HTTP请求,获取响应
HttpResponse response = httpClient.execute(httpGet);
if (response.getStatusLine().getStatusCode() == 200) {
System.out.println("Response received successfully:");
System.out.println(response.toString());
} else {
System.out.println("Failed to receive response. Status code: " + response.getStatusLine().getStatusCode());
}
} finally {
// 关闭HttpClient连接
httpClient.close();
}
}
}
在这个示例中,我们创建了一个HTTP GET请求,然后发送到指定的URL。如果响应状态码为200(成功),我们就打印出响应内容。
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