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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();

}

}

}

}