package downloadimg;
import java.awt.image.BufferedImage;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
/**
* @author Cytosine
* @thanks BreakShadow
* get CAPTCHA Img URL's API:https://passport.baidu.com/v2/?reggetcodestr
* The CAPTCHA Img'url is "https://passport.baidu.com/cgi-bin/genimage?"add verifystr that get by above API.
*/
public class DownloadImgWithoutType {
public static void main(String args[]){
for(int i=0;i<1000;i++){
String path="D:\\test\\"; //Please replace your path where you want to save it of my basicPath.
BufferedImage bi=httpsGetImg(httpsGetImgURL());
if(bi==null){
System.out.println("bi==null");
}else{
File f=new File(path+i+".png");
try {
ImageIO.write(bi, "png", f);
} catch (IOException ex) {
Logger.getLogger(DownloadImgWithoutType.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
public static String httpsGetImgURL(){
StringBuffer requestResult=new StringBuffer();
BufferedReader bufferedReader=null;
try{
SSLContext ssl=SSLContext.getInstance("TLS");
ssl.init(null, new TrustManager[]{cytoX509TrustManager}, null);
URL url=new URL("https://passport.baidu.com/v2/?reggetcodestr");
HttpsURLConnection conn=(HttpsURLConnection)url.openConnection();
conn.setSSLSocketFactory(ssl.getSocketFactory());
conn.setRequestMethod("GET");
conn.setDoOutput(true);
conn.connect();
bufferedReader=new BufferedReader(new InputStreamReader(conn.getInputStream()));
}catch(Exception ex){
ex.printStackTrace();
}
try{
String line;
while((line=bufferedReader.readLine())!=null){
requestResult.append(line);
}
bufferedReader.close();
}catch(Exception ex){
ex.printStackTrace();
}
String all=requestResult.toString();
String[] spl=all.split("'");
String verifystr=spl[3];
String result="https://passport.baidu.com/cgi-bin/genimage?"+verifystr;
return result;
}
public static BufferedImage httpsGetImg(String url){
BufferedInputStream bufferedInputStream=null;
ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();
try{
SSLContext ssl=SSLContext.getInstance("TLS");
ssl.init(null, new TrustManager[]{cytoX509TrustManager}, null);
URL realURL=new URL(url);
HttpsURLConnection conn=(HttpsURLConnection)realURL.openConnection();
conn.setSSLSocketFactory(ssl.getSocketFactory());
conn.setRequestMethod("GET");
conn.connect();
bufferedInputStream=new BufferedInputStream(conn.getInputStream());
}catch(Exception ex){
ex.printStackTrace();
}
try{
int b;
while((b=bufferedInputStream.read())!=-1){
byteArrayOutputStream.write(b);
}
bufferedInputStream.close();
}catch(Exception ex){
ex.printStackTrace();
}
byte[] imgData=byteArrayOutputStream.toByteArray();
ByteArrayInputStream in=new ByteArrayInputStream(imgData);
BufferedImage result=null;
try {
result = ImageIO.read(in);
} catch (IOException ex) {
Logger.getLogger(DownloadImgWithoutType.class.getName()).log(Level.SEVERE, null, ex);
}
return result;
}
//https证书
private static X509TrustManager cytoX509TrustManager=new X509TrustManager(){
public X509Certificate[] getAcceptedIssuers(){
return null;
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
};
}
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