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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