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DownloadImg.java
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import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class DownloadImg {
public static void writeImgEntityToFile(HttpEntity imgEntity,String fileAddress) {
File storeFile = new File(fileAddress);
FileOutputStream output = null;
try {
output = new FileOutputStream(storeFile);
if (imgEntity != null) {
InputStream instream;
instream = imgEntity.getContent();
byte b[] = new byte[8 * 1024];
int count;
while ((count = instream.read(b)) != -1) {
output.write(b, 0, count);
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
output.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
System.out.println("获取Bing图片地址中……");
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet("http://cn.bing.com/");
CloseableHttpResponse response = null;
try {
response = httpClient.execute(httpGet);
Pattern p = Pattern.compile("g_img=\\{url:.*\\.jpg");
Matcher m = p.matcher(EntityUtils.toString(response.getEntity()));
String address = null;
if (m.find()) {
address = m.group().split("'")[1].split("'")[0];
} else {
System.exit(0);
}
System.out.println("图片地址:" + address);
System.out.println("正在下载……");
HttpGet getImage = new HttpGet(address);
CloseableHttpResponse responseImg = httpClient.execute(getImage);
HttpEntity entity = responseImg.getEntity();
writeImgEntityToFile(entity,"/home/geekgao/图片/BingImg/" + dateFormat.format(new Date()) + ".jpg");
System.out.println("下载完毕.");
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
httpClient.close();
response.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}