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java 常用工具类,作为 apache-commons的补充

There is a newer version: 5.3.2302

package com.centit.support.network;

import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpResponseException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

/**
 * copy from {@link org.apache.http.impl.client.BasicResponseHandler}
 *
 * @author Daniel Qian
 */
public class Utf8ResponseHandler implements ResponseHandler {

    public static final ResponseHandler INSTANCE = new Utf8ResponseHandler();

    @Override
    public String handleResponse(final HttpResponse response) throws IOException {
        final StatusLine statusLine = response.getStatusLine();
        final HttpEntity entity = response.getEntity();
        if (statusLine.getStatusCode() >= 300) {
            EntityUtils.consume(entity);
            throw new HttpResponseException(statusLine.getStatusCode(), "Error Code : " +
                String.valueOf(statusLine.getStatusCode()) + ", " + statusLine.getReasonPhrase() + "。");
        }
        return entity == null ? null : EntityUtils.toString(entity, Consts.UTF_8);
    }

}