JAVA调用第三方get请求接口
时间: 2023-07-19 21:35:32 浏览: 51
可以使用Java的HttpURLConnection类或者Apache的HttpClient库来调用第三方get请求接口。下面是HttpURLConnection的示例代码:
```
import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class HttpGetRequest {
public static void main(String[] args) {
try {
URL url = new URL("https://api.example.com/data");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
int responseCode = connection.getResponseCode();
System.out.println("Response Code : " + responseCode);
BufferedReader in = new BufferedReader(new InputStreamReader(connection.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());
}
}
}
```
在这个例子中,我们创建了一个URL对象,然后使用HttpURLConnection类打开连接。我们设置请求方法为GET,然后获取响应的状态码和响应内容。最后,我们将响应内容输出到控制台。
如果你想使用Apache的HttpClient库,可以参考以下代码:
```
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
public class HttpGetRequest {
public static void main(String[] args) {
try {
HttpClient client = HttpClientBuilder.create().build();
HttpGet request = new HttpGet("https://api.example.com/data");
HttpResponse response = client.execute(request);
System.out.println("Response Code : " + response.getStatusLine().getStatusCode());
String responseString = EntityUtils.toString(response.getEntity(), "UTF-8");
System.out.println(responseString);
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
}
}
```
在这个例子中,我们创建了一个HttpClient实例,然后创建一个HttpGet请求对象。我们使用HttpClient实例执行HttpGet请求,并获取响应。最后,我们将响应内容输出到控制台。