android开发网络连接工具类(一)

网络连接工具类整理:

package com.gzcivil.utils;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EntityUtils;

import android.content.Context;

/**
 * 网络连接类
 * 
 * @author LiJinlun
 * 
 */
public class NetUtils {

    /**
     * 获取Json数据
     * 
     * @param param
     * @return
     */

    public static String post(Map<String, String> paramMap, String URL, Context context) {

        String result = null;
        HttpPost httpRequest = new HttpPost(URL);
        List<NameValuePair> params = new ArrayList<NameValuePair>();

        paramMap.put("machineCode", CommonUtil.GetMachineCode(context));
        paramMap.put("cid", CommonUtil.GetCid(context).toString());

        for (Map.Entry<String, String> param : paramMap.entrySet()) {
            params.add(new BasicNameValuePair(param.getKey(), param.getValue()));
        }
        // 打印去包日志
        LogUtils.d(SysUtils.LOG_TAG, "去包:" + URL + params.toString());
        HttpEntity httpEntity;
        HttpClient httpClient = null;
        try {
            httpEntity = new UrlEncodedFormEntity(params, "UTF-8");
            httpRequest.setEntity(httpEntity);
            httpClient = getHttpClient();
            HttpResponse httpResponse = httpClient.execute(httpRequest);

            int status = httpResponse.getStatusLine().getStatusCode();
            if (status == HttpStatus.SC_OK) {
                result = EntityUtils.toString(httpResponse.getEntity());
                // 打印回包日志
                LogUtils.d(SysUtils.LOG_TAG, "回包:" + result.toString());
                return result;
            }
        } catch (IOException e) {
            e.printStackTrace();
            return SysUtils.errorcode.ERROR_TIMEOUT + "";
        } finally {
            if (httpClient != null)
                httpClient.getConnectionManager().shutdown();
        }
        return null;
    }

    /**
     * get获取数据
     * 
     * @param url
     * @return
     */
    public static String get(String url) {
        // 打印去包日志
        LogUtils.d(SysUtils.LOG_TAG, "去包:" + url.toString());
        String result = null;
        HttpGet get = new HttpGet(url);
        HttpClient client = new DefaultHttpClient();
        try {
            HttpResponse response = client.execute(get);
            int status = response.getStatusLine().getStatusCode();
            if (status == HttpStatus.SC_OK) {
                result = EntityUtils.toString(response.getEntity(), "UTF-8");
                // 打印回包日志
                LogUtils.d(SysUtils.LOG_TAG, "回包:" + result.toString());
                return result;
            }
        } catch (IOException e) {
            e.printStackTrace();
            return SysUtils.errorcode.ERROR_TIMEOUT + "";
        } finally {
            client.getConnectionManager().shutdown();
        }
        return null;
    }

    public static HttpClient getHttpClient() {
        HttpParams httpParams = new BasicHttpParams();
        HttpConnectionParams.setConnectionTimeout(httpParams, 8 * 1000);
        HttpConnectionParams.setSoTimeout(httpParams, 8 * 1000);
        // HttpClientParams.setRedirecting(httpParams, true);
        HttpClient client = new DefaultHttpClient(httpParams);
        // client.getParams().setIntParameter( HttpConnectionParams.SO_TIMEOUT,
        // 8*1000); // 超时设置
        // client.getParams().setIntParameter(
        // HttpConnectionParams.CONNECTION_TIMEOUT, 8*1000);// 连接超时
        return client;
    }

}