android 服务器端 xml解析

package com.xueandorid.xml.util; import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; public class HttpDownloader { private URL url = null; public String download(String urlStr){ StringBuffer sb = new StringBuffer(); String line = null; BufferedReader bfr = null; try { url = new URL(urlStr); HttpURLConnection urlConn =(HttpURLConnection)url.openConnection(); bfr = new BufferedReader(new InputStreamReader(urlConn.getInputStream())); while((line=bfr.readLine())!=null){ sb.append(line); } } catch (Exception e) { e.printStackTrace(); }finally{ try { bfr.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); } /** * * @param urlStr * @param path * @param fileName * @return * -1：表示下载文件出错 * 0：表示下载文件成功 * 1：表示文件已经存在 */ public int download(String urlStr,String path,String fileName){ InputStream input = null; FileUtil fileUtil = new FileUtil(); if(fileUtil.isFileExist(path+fileName)){ return 1; }else{ try { url = new URL(urlStr); HttpURLConnection urlConn =(HttpURLConnection) url.openConnection(); input = urlConn.getInputStream(); File resultFile = fileUtil.writeToSDFromInput(path, fileName, input); if(resultFile==null){ return -1; } } catch (Exception e) { e.printStackTrace(); return -1; }finally{ try { input.close(); } catch (IOException e) { e.printStackTrace(); } } return 0; } } }