DefaultHttpClient型は非推奨です
Eclipse IDEはnew DefaultHttpClient
で警告を要求し、このクラスを非推奨としてマークします。
package com.example.web.controller; import org.apache.http.Header; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; public class WebCrawler { public static void main(String[] args) throws Exception { HttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet("/"); HttpResponse response = client.execute(request); //... } }
溶液
ソースコードに飛び込み、このコメントを参照してください。
DefaultHttpClient.java
* @deprecated (4.3) use {@link HttpClientBuilder}. */ @ThreadSafe @Deprecated public class DefaultHttpClient extends AbstractHttpClient { //...
これを解決するには、HttpClientBuilder
を使用します。
package com.hostingcompass.web.controller; import org.apache.http.Header; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.HttpClientBuilder; public class WebCrawler { public static void main(String[] args) throws Exception { HttpClient client = HttpClientBuilder.create().build(); HttpGet request = new HttpGet("/"); HttpResponse response = client.execute(request); //... } }