用jaxb 实现 xml转java对象技术

package com.pojo; import java.io.BufferedReader; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Unmarshaller; import com.dao.LogisticDao; import com.daoimpl.LogisticDaoImpl; public class Info { /*** * 返回 URLConnection 对象 * @return */ public static URLConnection getResult() { final String key = "e72b55700c01dc06"; final String com = "yuantong"; final String nu = "6274373481"; final String show = "1"; final String muti = "1"; final String order = "desc"; URLConnection connection = null; URL url = null; try { url= new URL("http://api.kuaidi100.com/api?id="+key+"&com="+com+"&nu="+nu+"&show="+show+"&muti="+muti+"&order="+order+""); //建立URL对象，并实例化为url，获得要抓取的网页地址 } catch (MalformedURLException e1) { e1.printStackTrace(); } try { //发送请求，读取查询结果 connection = url.openConnection(); } catch (IOException e1) { e1.printStackTrace(); } return connection; } /** * 返回读取的 StringBuilder字符串 * @return */ public static String getResponse() { @SuppressWarnings("unused") String builderStr = ""; String line; StringBuilder builder = new StringBuilder(); URLConnection connection = getResult(); try { connection.connect(); } catch (IOException e1) { e1.printStackTrace(); } BufferedReader reader = null; //BufferedReader对象，并实例化为reader，这里的utf-8是要抓取的网页编码格式 try { reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),"utf-8")); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } try { while((line = reader.readLine()) != null) { builder.append(line); } } catch (IOException e) { e.printStackTrace(); } return builderStr = builder.toString(); } public static File file_put_contents(String file_name,InputStream is) { File file=new File(file_name); OutputStream os=null; try { os=new FileOutputStream(file); byte buffer[]=new byte[4*1024]; int len = 0; while((len = is.read(buffer)) != -1){ os.write(buffer,0,len); } os.flush(); } catch(Exception e){ e.printStackTrace(); } finally{ try{ os.close(); } catch(Exception e){ e.printStackTrace(); } } return file; } public static InfoResult unmarshallerByJaxb() throws JAXBException, IOException { InfoResult infoResult = null; JAXBContext jc = JAXBContext.newInstance(InfoResult.class); Unmarshaller unmarshaller = jc.createUnmarshaller(); //InputStream inputStream =getResult().getInputStream(); //file_put_contents("e:/111.xml", inputStream); infoResult = (InfoResult) unmarshaller.unmarshal(getResult().getInputStream()); //inputStream.close(); return infoResult; } public static void main(String[] args) { getResponse(); System.out.println(getResponse()); try { System.out.println(unmarshallerByJaxb()); System.out.println(unmarshallerByJaxb().getData().get(0).getContext()); LogisticDao log = new LogisticDaoImpl(); InfoResult info = log.queryInfo("yuantong", "6274373481"); System.out.println(info.getData().size()); } catch (JAXBException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }