java - Java 中带有主体的 cURL GET 请求

Question

我有以下 curl 请求:

curl -X GET http://hostname:4444/grid/api/hub -d '{"configuration":["slotCounts"]}'

它返回一个 JSON 对象。

如何在 Java 中发出此类请求并获得响应？我试过这个:

URL url = new URL("http://hostname:4444/grid/api/hub -d '{\"configuration\":[\"slotCounts\"]}'");

    try (BufferedReader reader = new BufferedReader(new InputStreamReader(
            url.openStream(), "UTF-8"))) {
        for (String line; (line = reader.readLine()) != null;) {
            System.out.println(line);
        }
    }

但它返回一个异常:

Caused by: java.io.IOException: Server returned HTTP response code: 400 for URL: http://hostname:4444/grid/api/hub -d '{"configuration":["slotCounts"]}'

Answer 1

根据评论，我自己解决了。

private static class HttpGetWithEntity extends
        HttpEntityEnclosingRequestBase {
    public final static String METHOD_NAME = "GET";

    @Override
    public String getMethod() {
        return METHOD_NAME;
    }
} 

private void getslotsCount() throws IOException,
        URISyntaxException {

    HttpGetWithEntity httpEntity = new HttpGetWithEntity();
    URL slots = new URL("http://hostname:4444/grid/api/hub");

    httpEntity.setURI(pendingRequests.toURI());

    httpEntity
            .setEntity(new StringEntity("{\"configuration\":[\""
                    + PENDING_REQUEST_COUNT + "\"]}",
                    ContentType.APPLICATION_JSON));
    HttpClient client = HttpClientBuilder.create().build();
    HttpResponse response = client.execute(getPendingRequests);
    BufferedReader rd = new BufferedReader(new InputStreamReader(response
            .getEntity().getContent()));

    // At this point I can just get the response using readLine()
    System.out.println(rd.readLine());

}