java解析嵌套xml

主題代碼

package xml;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Iterator;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

public class domain {
    static String username;

    public static String xml() {
        try {

            SAXReader reader = new SAXReader();
            reader.setEncoding("utf-8");
            // xml文件地址
            File f = new File("c://new.xml");
            Document doc = reader.read(f);
            // Document doc = reader.read(is);
            domain j1 = new domain();
            Element rootElt = doc.getRootElement(); // 獲取根節點
            // System.out.println("根節點：" + rootElt.getName()); // 拿到根節點的名稱
            Iterator bbbb = rootElt.elementIterator("places"); // /國家
            // 遍歷bbbb節點
            while (bbbb.hasNext()) {
                Element recordEless = (Element) bbbb.next();
                Iterator cccc = recordEless.elementIterator("places"); // 城市
                while (cccc.hasNext()) {

                    Element itemEle = (Element) cccc.next();
                    Iterator dddd = itemEle.elementIterator("places");// 景點
                    while (dddd.hasNext()) {
                        Element tableItem = (Element) dddd.next();
                        username = tableItem.elementTextTrim("id"); // id
                        // System.out.println("username:" + username);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return username;
    }

    /**
     * 將圖片寫入到磁盤
     * 
     * @param img
     *            圖片數據流
     * @param fileName
     *            文件保存時的名稱
     */
    public static void writeImageToDisk(byte[] img, String fileName) {
        try {
            File file = new File("C:\\" + fileName);
            FileOutputStream fops = new FileOutputStream(file);
            fops.write(img);
            fops.flush();
            fops.close();
            System.out.println("圖片已經寫入到C盤");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 根據地址獲得數據的字節流
     * 
     * @param strUrl
     *            網絡連接地址
     * @return
     */
    public static byte[] getImageFromNetByUrl(String strUrl) {
        try {
            URL url = new URL(strUrl);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(5 * 1000);
            InputStream inStream = conn.getInputStream();// 通過輸入流獲取圖片數據
            byte[] btImg = readInputStream(inStream);// 得到圖片的二進制數據
            return btImg;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 從輸入流中獲取數據
     * 
     * @param inStream
     *            輸入流
     * @return
     * @throws Exception
     */
    public static byte[] readInputStream(InputStream inStream) throws Exception {
        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len = 0;
        while ((len = inStream.read(buffer)) != -1) {
            outStream.write(buffer, 0, len);
        }
        inStream.close();
        return outStream.toByteArray();
    }

}

測試代碼

package xml;

public class test {
    public static void main(String[] args) {
        domain domain = new domain();

        int i;
        for (i = 0; i < 10; i++) {

        }
        String url = "http://www.sunhotels.net/SunHotels.net/HotelInfo/hotelImage.aspx?id="
                + domain.xml();

        // String url = "http://www.baidu.com/img/baidu_sylogo1.gif";
        byte[] btImg = domain.getImageFromNetByUrl(url);
        if (null != btImg && btImg.length > 0) {
            System.out.println("讀取到：" + btImg.length + " 字節");
            String fileName = domain.xml() + ".gif";
            domain.writeImageToDisk(btImg, fileName);
        } else {
            System.out.println("沒有從該連接獲得內容");
        }
    }
}