实例介绍
【实例简介】
【实例截图】
【核心代码】
import java.util.HashMap; import java.util.Iterator; import java.util.Map; import org.apache.http.Header; import org.apache.http.HttpHost; 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.conn.params.ConnRoutePNames; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.CoreConnectionPNames; import org.apache.http.params.HttpProtocolParams; import org.apache.http.util.EntityUtils; import android.os.Handler; import android.os.Message; import android.util.Log; import android.widget.Toast; import com.baidu.lbs.duanzu.DemoApplication; import com.baidu.lbs.duanzu.MainActivity; /** * 百度云检索使用类 * @author Lu.Jian * */ public class LBSCloudSearch { private static String mTAG = "NetWorkManager"; //百度云检索API URI private static final String SEARCH_URI_NEARBY = "http://api.map.baidu.com/geosearch/v2/nearby?"; private static final String SEARCH_URI_LOCAL = "http://api.map.baidu.com/geosearch/v2/local?"; public static final int SEARCH_TYPE_NEARBY = 1; public static final int SEARCH_TYPE_LOCAL = 2; private static int currSearchType = 0; //云检索公钥 private static String ak = "A4749739227af1618f7b0d1b588c0e85"; private static String geotable_id = "30960"; private static int TIME_OUT = 12000; private static int retry = 3; private static boolean IsBusy = false; /** * 云检索访问 * @param filterParams 访问参数,key为filter时特殊处理。 * @param handler 数据回调Handler * @param networkType 手机联网类型 * @return */ public static boolean request(final int searchType,final HashMap<String, String> filterParams,final Handler handler, final String networkType) { if (IsBusy || filterParams == null) return false; IsBusy = true; new Thread() { public void run() { int count = retry; while (count > 0){ try { //根据过滤选项拼接请求URL String requestURL = ""; if(searchType == -1){ //沿用上次搜索保存的search type if(currSearchType == SEARCH_TYPE_NEARBY){ requestURL = SEARCH_URI_NEARBY; }else if(currSearchType == SEARCH_TYPE_LOCAL){ requestURL = SEARCH_URI_LOCAL; } }else{ if(searchType == SEARCH_TYPE_NEARBY){ requestURL = SEARCH_URI_NEARBY; }else if(searchType == SEARCH_TYPE_LOCAL){ requestURL = SEARCH_URI_LOCAL; } currSearchType = searchType; } requestURL = requestURL "&" "ak=" ak "&geotable_id=" geotable_id; String filter = null; Iterator iter = filterParams.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry = (Map.Entry) iter.next(); String key = entry.getKey().toString(); String value = entry.getValue().toString(); if(key.equals("filter")){ filter = value; }else{ if(key.equals("region") && currSearchType == SEARCH_TYPE_NEARBY){ continue; } requestURL = requestURL "&" key "=" value; } } if(filter != null && !filter.equals("")){ //substring(3) 为了去掉"|" 的encode "%7C" requestURL = requestURL "&filter=" filter.substring(3); } Log.d("DuanZuLog", "request url:" requestURL); HttpGet httpRequest = new HttpGet(requestURL); HttpClient httpclient = new DefaultHttpClient(); httpclient.getParams().setParameter( CoreConnectionPNames.CONNECTION_TIMEOUT, TIME_OUT); httpclient.getParams().setParameter( CoreConnectionPNames.SO_TIMEOUT, TIME_OUT); HttpProtocolParams.setUseExpectContinue(httpclient.getParams(), false); if(networkType.equals("cmwap")){ HttpHost proxy = new HttpHost("10.0.0.172", 80, "http"); httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy); }else if(networkType.equals("ctwap")){ HttpHost proxy = new HttpHost("10.0.0.200", 80, "http"); httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy); } HttpResponse httpResponse = httpclient.execute(httpRequest); int status = httpResponse.getStatusLine().getStatusCode(); if ( status == HttpStatus.SC_OK ) { String result = EntityUtils.toString(httpResponse .getEntity(), "utf-8"); Header a = httpResponse.getEntity().getContentType(); Message msgTmp = handler.obtainMessage(MainActivity.MSG_NET_SUCC); msgTmp.obj = result; msgTmp.sendToTarget(); break; } else { httpRequest.abort(); Message msgTmp = handler.obtainMessage(MainActivity.MSG_NET_STATUS_ERROR); msgTmp.obj = "HttpStatus error"; msgTmp.sendToTarget(); } } catch (Exception e) { Log.e("DuanZuLog", "网络异常,请检查网络后重试!"); e.printStackTrace(); } count--; } if ( count <= 0 && handler != null){ Message msgTmp = handler.obtainMessage(MainActivity.MSG_NET_TIMEOUT); msgTmp.sendToTarget(); } IsBusy = false; } }.start(); return true; } }
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