结构图
设置环境变量JAVA_HOME
然后在`Path`变量中添加“%JAVA_HOME%\bin%JAVA_HOME%\jre\bin”
path
使用url统一资源定位符，前提是需要有访问文件的权限。
import java.io.File
import java.net.URL
import org.apache.commons.io.FileUtils
public class DownloadURLFile {
/**
* @param args
*/
public static void main(String[] args) {
String res = downloadFromUrl("http://images.17173.com/2010/www/roll/201003/0301sohu01.jpg","d:/")
System.out.println(res)
}
public static String downloadFromUrl(String url,String dir) {
try {
URL httpurl = new URL(url)
String fileName = getFileNameFromUrl(url)
System.out.println(fileName)
File f = new File(dir + fileName)
FileUtils.copyURLToFile(httpurl, f)
} catch (Exception e) {
e.printStackTrace()
return "Fault!"
}
return "Successful!"
}
public static String getFileNameFromUrl(String url){
String name = new Long(System.currentTimeMillis()).toString() + ".X"
int index = url.lastIndexOf("/")
if(index > 0){
name = url.substring(index + 1)
if(name.trim().length()>0){
return name
}
}
return name
}
}
