java解析xml文件练习——通过应用包名获取应用图标即其他信息（基于魅族应用商店）

package jsouphtml;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public class GetPackageName {
	
	public static String[] getPackageName(String filename){
		String packagename[]=null;
		BufferedReader iStream=null;
		String line = null;
		File packagenames = new File(filename);//"D:\\packagenames.txt"
		try {
			StringBuffer content=new StringBuffer();
			iStream = new BufferedReader(new FileReader(packagenames));
			
			while ((line=iStream.readLine())!=null) {
				content.append(line.trim());
			}			
			packagename=content.toString().split(",");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			if(iStream!=null)
				try {
					iStream.close();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
		}
		return packagename;
	}
}

package jsouphtml;

import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.io.OutputStream;

import java.net.URL;
import java.net.URLConnection;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class MzTheme {

	public static void main(String[] args) {
		InputStream inputStream = null;
		OutputStream outputStream = null;
		try {
			String url = "http://app.flyme.cn/apps/public/detail?package_name=";
			
			String packagenames[] = GetPackageName.getPackageName("D:\\packagenames.txt");
			System.out.println(packagenames.length);
			for (int i =1;i<packagenames.length;i++) {
								
				System.out.println(i);				
				Document doc = Jsoup.connect(url +packagenames[i]).get();
				if(doc.getElementsByClass("mz_content mz_container clearfix").isEmpty()){
					Element cElement = doc.getElementById("theme_content");
					Elements imgs = cElement.getElementsByClass("app_img");									
					String src = imgs.first().attr("src");
					System.out.println(src);
					System.out.println(packagenames[i]);
					File icon = new File("D:\\icons\\" + packagenames[i] + ".png");//图标存放目录，可根据情况修改
					// 1.获取网址				
						
					URL u = new URL(src);
					// 2.打开连接				
					URLConnection conn = u.openConnection();
					// 3.获取输入流与写出流
					
					inputStream = conn.getInputStream();
					outputStream = new FileOutputStream(icon);
					// 4.将源代码写入内存(设置编码)
					byte[] b = new byte[2048];
					int len = 0;
					while ((len = inputStream.read(b)) != -1) {
						outputStream.write(b, 0, len);
		
					}
				}else{
					System.out.println(packagenames[i]+",No_Exit");
				}
			}

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			// 关闭I/o
			try {
				if (outputStream != null)
					outputStream.close();
				if (inputStream != null)
					inputStream.close();
			} catch (IOException e) {
				e.printStackTrace();
			}

		}
		

	}
	

}

package jsouphtml;

import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.io.OutputStream;

import java.net.URL;
import java.net.URLConnection;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class JsoupHtml {

	public static void main(String[] args) {
		InputStream inputStream = null;
		OutputStream outputStream = null;
		try {
			//String url = "http://app.flyme.cn/apps/public/detail?package_name=";
			//String url = "http://app.mi.com/details?id=";
			//String url ="http://www.wandoujia.com/apps/";
			String url = "http://sj.qq.com/myapp/detail.htm?apkName=";
			String packagenames[] = GetPackageName.getPackageName("D:\\packagenames.txt");
			System.out.println(packagenames.length);
			for (int i =1;i<packagenames.length;i++) {
				System.out.println(i);
				
				Document doc = Jsoup.connect(url +packagenames[i]).get();
				Element content = doc.getElementById("det-icon");				
				//Elements imgs = doc.getElementsByClass("app_img"); //魅族应用商店
				//Elements imgs = doc.getElementsByClass("yellow-flower");
				if(content.isBlock()){
				Elements imgs = doc.getElementsByTag("img");				
				String src = imgs.first().attr("src");
				System.out.println(src);
				System.out.println(packagenames[i]);
				File icon = new File("D:\\yingyongbao\\" + packagenames[i] + ".png");
				// 1.获取网址				
					
				URL u = new URL(src);
				// 2.打开连接				
				URLConnection conn = u.openConnection();
				// 3.获取输入流与写出流
				
				inputStream = conn.getInputStream();
				outputStream = new FileOutputStream(icon);
				// 4.将源代码写入内存(设置编码)
				byte[] b = new byte[2048];
				int len = 0;
				while ((len = inputStream.read(b)) != -1) {
					outputStream.write(b, 0, len);
	
				}
			}else{
					System.out.println(packagenames[i]+",No_Exit");
				}
			}

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally {
			// 关闭I/o
			try {
				if (outputStream != null)
					outputStream.close();
				if (inputStream != null)
					inputStream.close();
			} catch (IOException e) {
				e.printStackTrace();
			}

		}		

	}  

}

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