从URL获取文件保存到本地的JAVA代码

<%@page import="java.net.*,java.io.*"%> "ZP^YU4m7  
<%! heC%x+~  
public boolean saveUrlAs(String photoUrl, String fileName) { BcWDe-o*  
//此方法只能用户HTTP协议 @8nU< q  
  try { m$H}W$  
    URL url = new URL(photoUrl); 9
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    HttpURLConnection connection = (HttpURLConnection) url.openConnection(); ~)MMv6}bw  
    DataInputStream in = new DataInputStream(connection.getInputStream()); /B2#j"8x  
    DataOutputStream out = new DataOutputStream(new FileOutputStream(fileName)); Nh@v}  
    byte[] buffer = new byte[4096]; bxX$Z7X4  
    int count = 0; y6YD aZgj4  
    while ((count = in.read(buffer)) > 0) { n:+j)7W  
    out.write(buffer, 0, count); S9WS"l9C}  
    } UQqn^2  
    out.close(); V4]5h}cy  
    in.close(); iey
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    return true; d@V;XC  
  } E[F %N&L  
  catch (Exception e) { e K8(u>G|  
    return false; }>{]%s  
  } fMwQ<
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} :-8N|KWgw  
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public String getDocumentAt(String urlString) { AJA15t lF  
//此方法兼容HTTP和FTP协议 k`vjYYYcr)  
  StringBuffer document = new StringBuffer(); 2@W< .P,  
  try { y`!J[?7Pg  
    URL url = new URL(urlString); iYQH
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    URLConnection conn = url.openConnection(); 6|e| eJe^  
    BufferedReader reader = new BufferedReader(new InputStreamReader(conn. f8\P
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      getInputStream())); 8QB[FH<b  
    String line = null; SW`P/@*[q  
    while ( (line = reader.readLine()) != null) { Di$H{Kg-  
    document.append(line + "\n"); vz (~+OuY  
    } .XXW:7M7A  
    reader.close(); 8 *T
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  } iT;}R,Y>;  
  catch (MalformedURLException e) { j18:AnE5`  
    System.out.println("Unable to connect to URL: " + urlString); aE1+% 6  
  } y>T!Mcl  
  catch (IOException e) { "zv~17E9W  
    System.out.println("IOException when connecting to URL: " + urlString); `tL'<}ZC@  
  } <d>% ]  
  return document.toString(); LzPKyJtm>  
} VB c*VGj  
%> 6@Y GR8)  
<% "fApVpA"aa  
//测试 %P9>90~^.  
String photoUrl = "String fileName = photoUrl.substring(photoUrl.lastIndexOf("/")); Rj{#,mktJ  
String filePath = "d:/ghost/"; \{nIqxb<  
boolean flag = saveUrlAs(photoUrl, filePath + fileName); WU>W.!WK_  
out.println("Run ok!\n<BR>Get URL file " + flag); \HD[ ?q
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