javascript和JQuery焦点图和代码特效大全
当前最流行的开源CMS网站系统大全
当前位置:主页 > 编程开发 > JAVA技术 >

Java读取网上静态文件资源

来源:IT技术网编辑:一页书发布于:2013-08-15人围观Java文件资源读取网上

Java读取网上静态文件资源,具体代码如下:
public class ResourceLoader {
 
private static final int BUFFER_SIZE = 1024;
 
public void loadResourceIntoFile(String urlStr, String file)
throws IOException {
URL url = null;
URLConnection con = null;
InputStream in = null;
FileOutputStream out = null;
 
try {
url = new URL(urlStr);
con = url.openConnection();
File targetFile = new File(file);
long curLength = targetFile.length();
if (curLength > 0)
con.setRequestProperty("RANGE", "bytes=" + curLength);
 
con.connect();
long totalLength = con.getHeaderFieldLong("Content-Length", 0);
System.out.println("total length:" + totalLength);
in = con.getInputStream();
out = new FileOutputStream(targetFile, true);
if (totalLength > 0) {
int len;
byte[] buffer = new byte[BUFFER_SIZE];
while ((len = in.read(buffer)) != -1) {
out.write(buffer);
}
}
out.flush();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
out.close();
in.close();
}
 
}
}
 

Java,文件,资源,相关的文章
有时间的话来看看IT界的突发事件