Java tutorial
/** * Copyright 2009-2018 Wudao Software Studio(wudaosoft.com) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.wudaosoft.net.httpclient; import java.io.IOException; import java.nio.charset.Charset; import org.apache.http.Consts; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.ResponseHandler; import org.apache.http.entity.ContentType; import org.apache.http.util.EntityUtils; /** * @author Changsoul.Wu */ public class StringResponseHandler implements ResponseHandler<String> { @Override public String handleResponse(HttpResponse response) throws ClientProtocolException, IOException { int status = response.getStatusLine().getStatusCode(); if (status >= 200 && status < 300) { HttpEntity entity = response.getEntity(); Charset charset = ContentType.getOrDefault(entity).getCharset(); if (charset == null) { charset = Consts.UTF_8; } return entity != null ? EntityUtils.toString(entity, charset) : ""; } else { throw new ClientProtocolException("Unexpected response status: " + status); } } }