Question

我想用Body执行HTTP DELETE请求。我正在使用Spring Framework。

为了做到这一点，我必须做以下修改：

RestTemplate _deleteManager;
_deleteManager = new RestTemplate();
_deleteManager.setRequestFactory(new HttpComponentsClientHttpRequestFactory() {
    protected HttpUriRequest createHttpRequest(HttpMethod httpMethod, URI uri) {
        if (HttpMethod.DELETE == httpMethod) {
            return new HttpEntityEnclosingDeleteRequest(uri);
        }
        return super.createHttpRequest(httpMethod, uri);
    }
});

public static class HttpEntityEnclosingDeleteRequest extends HttpEntityEnclosingRequestBase {
    public HttpEntityEnclosingDeleteRequest(final URI uri) {
        super();
        setURI(uri);
    }

    @Override
    public String getMethod() {
        return "DELETE";
    }
}

然后我使用_deleteManager拨打电话

_deleteManager.exchange(url, HttpMethod.DELETE, requestEntity, ResponseClass.class);

这是正常的，但代码HttpUriRequest和HttpEntityEnclosingRequestBase被标记为已弃用。

我应该使用哪种替代方案？我在网上搜索但找不到任何东西。

编辑：或者一个简单的答案显示如何使用正文执行DELETE请求就足够了。

谢谢

Answer 1

选项A）使用Unirest

Unirest.delete("http://url.example.com").body("request-body").asString();

那就是它。

选项B）如果您不想使用此库，请使用Apache HttpClient，它是Java中使用最广泛的http库。但是，您需要创建一个用于删除的小类，并使用body来工作：

import java.net.URI;
import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
public class HttpDeleteWithBody extends HttpEntityEnclosingRequestBase {
    public static final String METHOD_NAME = "DELETE";
    public String getMethod() {
        return METHOD_NAME;
    }
    public HttpDeleteWithBody(final String uri) {
        super();
        setURI(URI.create(uri));
    }
}

并通过以下方式使用：

HttpDeleteWithBody request = new HttpDeleteWithBody(url);
request.addHeader("accept-encoding", "gzip"); //add some headers if you like
request.setEntity(new StringEntity(body, "UTF-8"));
HttpClient httpClient = HttpClients.createDefault();
HttpResponse response = httpClient.execute(request);

Answer 2

检查6.0的官方更改日志中的related topic。所以你应该使用HttpURLConnection类。

一个例子：

URL url = new URL("your_url");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
try {
    urlConnection.setRequestMethod("DELETE");
    urlConnection.setDoOutput(true);
    // Maybe you should set the request properties here too, but it depends on your body.

    OutputStreamWriter osw = new OutputStreamWriter(urlConnection.getOutputStream());
    osw.write("this_is_the_body");
    osw.flush();

    int HttpResult = urlConnection.getResponseCode(); 
    if(HttpResult == HttpURLConnection.HTTP_OK) {
        InputStream is = new BufferedInputStream(urlConnection.getInputStream());
        // Handle the response.
    } else {
        // ...
    }
}
finally {
    urlConnection.disconnect();
}

使用正文删除请求（不使用不推荐的HttpEntity）

2 个答案: