[httpclient] 3.x to 4.x

API 구조가 많이 바뀌었습니다.

계속 3.x 쓰다가 4.x 로 갈아 탈라고 wrapper class 만들다 보니 참고할 만한 내용이 필요해서 올려 봅니다.

http://hc.apache.org/httpcomponents-client-4.3.x/index.html

[요약]

- xxxMethod 는 Httpxxx

- http status code 는 httpresponse.getStatusLine().getStatusCode()

- response body content 는 httpresponse.getEntity().getContent()

로 바뀌었습니다.

httpclient 3.x to 4.x

http://debuguide.blogspot.in/2013/01/quick-guide-for-migration-of-commons.html

	Commons HttpClient 3.x	HttpComponents HttpClient 4.x
import	import org.apache.commons.httpclient.Credentials; import org.apache.commons.httpclient.Header; import org.apache.commons.httpclient.HostConfiguration; import org.apache.commons.httpclient.HttpClient; import org.apache.commons.httpclient. MultiThreadedHttpConnectionManager; import org.apache.commons.httpclient. UsernamePasswordCredentials; import org.apache.commons.httpclient.auth.AuthScope; import org.apache.commons.httpclient.methods.DeleteMethod; import org.apache.commons.httpclient.methods.GetMethod; import org.apache.commons.httpclient.methods.PostMethod;	import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpHost; import org.apache.http.HttpResponse; import org.apache.http.auth.AuthScope; import org.apache.http.auth.Credentials; import org.apache.http.auth.UsernamePasswordCredentials; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.conn.params.ConnRoutePNames; import org.apache.http.entity.ContentType; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils;
HttpClient	HttpClient client = new HttpClient(connectionManager);	DefaultHttpClient client = new DefaultHttpClient();
proxy configuration	client.getHostConfiguration().setProxy( proxyHost, proxyPort); client.getState().setAuthenticationPreemptive( true); Credentials cred = new  UsernamePasswordCredentials( proxyUser, proxyPassword); client.getState().setProxyCredentials( AuthScope.ANY_HOST, proxyHost, cred)	client.getCredentialsProvider(). setCredentials(  new AuthScope(proxyHost, proxyPort),  new UsernamePasswordCredentials( proxyUser, proxyPassword)); HttpHost proxy = new HttpHost(proxyHost proxyPort); client.getParams().setParameter( ConnRoutePNames.DEFAULT_PROXY, proxy);
POST	PostMethod post = new PostMethod(); post.setPath(url.getFile());	HttpPost post = new HttpPost(url.getFile());
POST Header	post.setRequestHeader(key, (String) headers.get(key));	post.addHeader(key, (String) headers.get(key));
POST Body	post.setRequestBody(message);	StringEntity messageEntity = new StringEntity( message,  ContentType.create("text/plain", "UTF-8"));       post.setEntity(messageEntity);
Execute POSt	client.executeMethod(post);	HttpHost targetHost = new HttpHost(url.getHost(), url.getPort(), url.getProtocol()); HttpResponse httpResponse = client.execute(targetHost, post);
Response Header	Header[] rspHeaders = post.getResponseHeaders();	Header[] rspHeaders = httpResponse.getAllHeaders();
Response Body	String responseMsg = post.getResponseBodyAsString()	StringBuffer buffer = new StringBuffer();       BufferedReader reader = new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent())); String dataLine = null; while((dataLine = reader.readLine()) != null){             buffer.append(dataLine); } String responseMsg =    buffer.toString();
GET	GetMethod getMethod = new GetMethod(); getMethod.setPath(url.getFile());	HttpGet httpGet = new HttpGet(url.getFile());
GET Header	getMethod.setRequestHeader(key, value);	httpGet.addHeader(key, value);
Execute GET	client.executeMethod(getMethod);	HttpHost targetHost = new HttpHost(url.getHost(), url.getPort(), url.getProtocol()); HttpResponse httpResponse = client.execute( targetHost, httpGet);