com.zyf.bike.suzhou.utils.HttpOperation.java Source code

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Here is the source code for com.zyf.bike.suzhou.utils.HttpOperation.java

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/*
 *   Copyright (c) 2012 Robot
 *   
 *   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.zyf.bike.suzhou.utils;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

public class HttpOperation {

    public static final String TAG = "HttpOperation";

    /**
     * Http Get?(?)
     * @param url
     * @return
     */
    public static String doGetString(String url) {
        byte[] data = doGetBase(url, 3);
        if (data != null) {
            String re = new String(data);
            Logger.d("", "[Response]:" + re);
            return re;
        } else {
            return null;
        }
    }

    /**
     * Http Get??
     * @param url
     * @param testnum ?
     * @return
     */
    public static byte[] doGetBase(String url, int testnum) {
        if (testnum < 0) {
            return null;
        }
        try {
            //HttpClient    
            HttpClient httpclient = new DefaultHttpClient();
            //POST  
            HttpGet get = new HttpGet(url);
            HttpResponse response = httpclient.execute(get);
            int code = response.getStatusLine().getStatusCode();
            if (code == HttpStatus.SC_OK) {
                //?
                return EntityUtils.toByteArray(response.getEntity());
            } else if (code == HttpStatus.SC_NOT_FOUND || code == HttpStatus.SC_FORBIDDEN
                    || code == HttpStatus.SC_METHOD_NOT_ALLOWED) {
                //403 ?
                //404 ??
                //405 ??
                return null;
            } else {
                //??
                doGetBase(url, testnum--);
            }
        } catch (Exception e) {
            Logger.e(TAG, e.getMessage(), e);
        }
        return null;
    }
}