从网络下载一张图片代码,Java代码库,德仔网

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【Java】从网络下载一张图片
作者:要饭的 / 发布于2012/3/6/ 478
目前只具有下载一张图片的功能，会再加入批量下载和重命名的功能的，并且源文件和目标文件名都要从数据库中提取
<div>package com.seo.util;</div>
<div></div>
import java.io.FileNotFoundException;</div>
import java.io.FileOutputStream;</div>
import java.io.IOException;</div>
import java.io.InputStream;</div>
import java.net.MalformedURLException;</div>
import java.net.URL;</div>
import java.net.URLConnection;</div>
<div></div>
<div>public class GetImages {</div>
<div></div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span>/**</div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span> * @param args</div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span> */</div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span>public static void main(String[] args) {</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>// TODO Auto-generated method stub</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>GetImages getImages = new GetImages();</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>getImages.getImage();</div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span>}
<div><span class="Apple-tab-span" style="white-space:pre">	</span></div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span>public void getImage(){</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>String targetImage = "http://127.0.0.1/20091231notice.jpg";</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>URL url = null;</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>FileOutputStream outfile = null;</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>InputStream infile = null;</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>URLConnection con = null;</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>byte [] buffer = null;</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span></div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>try {</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>url = new URL(targetImage);</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>outfile = new FileOutputStream("test.jpg", true);</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>con = url.openConnection();</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>infile = con.getInputStream();</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>buffer = new byte[1024];</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>while(infile.read(buffer, 0, 1024) != -1){</div>
<div><span class="Apple-tab-span" style="white-space:pre">				</span>outfile.write(buffer);</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>}
<div><span class="Apple-tab-span" style="white-space:pre">			</span>//infile.read(buffer, 0, fileLenght);</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>//outfile.write(buffer, 0, fileLenght);</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>System.out.println("image save ok");</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>infile.close();</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>outfile.close();</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>} catch (MalformedURLException e) {</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>// TODO Auto-generated catch block</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>e.printStackTrace();</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>} catch (FileNotFoundException e) {</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>// TODO Auto-generated catch block</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>e.printStackTrace();</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>} catch (IOException e) {</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>// TODO Auto-generated catch block</div>
<div><span class="Apple-tab-span" style="white-space:pre">			</span>e.printStackTrace();</div>
<div><span class="Apple-tab-span" style="white-space:pre">		</span>}
<div><span class="Apple-tab-span" style="white-space:pre">	</span>}
<div></div>
<div>}
<div></div>
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