import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

// 地址
// private static final String URL = "https://voice.hupu.com/nba/2176298.html";
// 獲取img標(biāo)簽正則
private static final String IMGURL_REG = "<img.data-original=(.?)[^>]?>";
// 獲取src路徑的正則
// private static final String IMGSRC_REG = "[a-zA-z]+://[^\s]";
private static final String IMGSRC_REG = "[a-zA-z]+://[^\s]*";
private static final String Download_path = "/Users/yangjunchao/imgdownload/";
public static void main(String[] args) {
// for (long id = 55467; id <= 55467; id++) {
// try {
// System.out.println(id);
// String url = "http://tieba.baidu.com/p/51970"+id;
// System.out.println(url);
// Main cm = new Main();
// //獲得html文本內(nèi)容
// String HTML = cm.getHtml(url);
// //獲取圖片標(biāo)簽
// List<String> imgUrl = cm.getImageUrl(HTML);
// //獲取圖片src地址
// List<String> imgSrc = cm.getImageSrc(imgUrl);
// //下載圖片
// cm.Download(imgSrc);
//
// } catch (Exception e) {
// System.out.println("發(fā)生錯(cuò)誤");
// System.out.println(e);
// }
// }
// }
try {
String url = "http://588ku.com/beijing/0-0-pxnum-0-8-0-0-0-1/?h=bd&sem=1";
System.out.println(url);
Main cm = new Main();
//獲得html文本內(nèi)容
String HTML = cm.getHtml(url);
//獲取圖片標(biāo)簽
List<String> imgUrl = cm.getImageUrl(HTML);
//獲取圖片src地址
List<String> imgSrc = cm.getImageSrc(imgUrl);
//下載圖片
cm.Download(imgSrc);
} catch (Exception e) {
System.out.println("發(fā)生錯(cuò)誤");
System.out.println(e);
}
}
//獲取HTML內(nèi)容
private String getHtml(String url)throws Exception{
URL url1=new URL(url);
URLConnection connection=url1.openConnection();
InputStream in=connection.getInputStream();
InputStreamReader isr=new InputStreamReader(in);
BufferedReader br=new BufferedReader(isr);
String line;
StringBuffer sb=new StringBuffer();
while((line=br.readLine())!=null){
sb.append(line,0,line.length());
sb.append('\n');
}
br.close();
isr.close();
in.close();
return sb.toString();
}
//獲取ImageUrl地址
private List<String> getImageUrl(String html){
Matcher matcher=Pattern.compile(IMGURL_REG).matcher(html);
List<String>listimgurl=new ArrayList<String>();
while (matcher.find()){
listimgurl.add(matcher.group());
}
return listimgurl;
}
//獲取ImageSrc地址
private List<String> getImageSrc(List<String> listimageurl){
List<String> listImageSrc=new ArrayList<String>();
for (String image:listimageurl){
Matcher matcher=Pattern.compile(IMGSRC_REG).matcher(image);
while (matcher.find()){
listImageSrc.add(matcher.group().substring(0, matcher.group().length()-1));
}
}
return listImageSrc;
}
//下載圖片
private void Download(List<String> listImgSrc) {
try {
//開始時(shí)間
Date begindate = new Date();
for (String url : listImgSrc) {
//開始時(shí)間
Date begindate2 = new Date();
String imageName = url.substring(url.lastIndexOf("/") + 1, url.length());
URL uri = new URL(url);
InputStream in = uri.openStream();
FileOutputStream fo = new FileOutputStream(new File(Download_path+imageName));
byte[] buf = new byte[1024];
int length = 0;
System.out.println("開始下載:" + url);
while ((length = in.read(buf, 0, buf.length)) != -1) {
fo.write(buf, 0, length);
}
in.close();
fo.close();
System.out.println(imageName + "下載完成");
//結(jié)束時(shí)間
Date overdate2 = new Date();
double time = overdate2.getTime() - begindate2.getTime();
System.out.println("耗時(shí)：" + time / 1000 + "s");
}
Date overdate = new Date();
double time = overdate.getTime() - begindate.getTime();
System.out.println("總耗時(shí)：" + time / 1000 + "s");
} catch (Exception e) {
System.out.println("下載失敗");
System.out.println(e);
}
}
}