我正试图让android使用php页面从我的web服务器下载一个zip文件。
如果我使用zip文件的静态链接进行下载,效果会很好,但我尝试使用以下代码的php文件进行下载:
function file_list($d,$x){
foreach(array_diff(scandir($d,1),array('.','..')) as $f)if(is_file($d.'/'.$f)&&(($x)?ereg($x.'$',$f):1))$l[]=$f;
return $l;
}
$arr = file_list("../download/",".zip");
$filename = $arr[0];
$filepath = "../download/".$arr[0];
if(!file_exists($filepath)){
die('Error: File not found.');
} else {
// Set headers
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$filename");
header("Content-Type: application/zip");
header("Content-Transfer-Encoding: binary");
readfile($filepath);
}
如果我在浏览器中访问php文件,它会下载zip,非常棒!
现在,在Android端,它像预期的那样下载,但zip的名称是getZip.php(php文件名),文件大小是22。
这是在Android 上进行下载的代码
int count;
try {
downloadCoords();
URL url = new URL(aurl[0]);
URLConnection conexion = url.openConnection();
conexion.connect();
int lengthOfFile = conexion.getContentLength();
Log.d("ANDRO_ASYNC", "Length of file: " + lengthOfFile);
File f = new File(Environment.getExternalStorageDirectory().getAbsolutePath());
if(!f.isDirectory()){
f.mkdirs();
}
Uri u = Uri.parse(url.toString());
File uf = new File(""+u);
zipname = uf.getName();
Log.d("ANDRO_ASYNC", "Zipname: " + zipname);
File zipSDCARD = new File(Environment.getExternalStorageDirectory().getAbsolutePath()+zipname);
if(!zipSDCARD.isFile()){
Log.d("zipSDCARD.isFile()","false");
InputStream input = new BufferedInputStream(url.openStream());
OutputStream output = new FileOutputStream("/sdcard/" + zipname);
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
publishProgress(""+(int)((total*100)/lengthOfFile));
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
}
successDownload = true;
} catch (Exception e) {
successDownload = false;
Log.e("Error","DownloadZip",e);
}
需要做的是,正确地获取zipname和ziplength。
提前谢谢。
好吧,我使用php解决了这个问题,并使用以下脚本将zip的链接动态写入屏幕:
function file_list($d,$x){
foreach(array_diff(scandir($d,1),array('.','..')) as $f)if(is_file($d.'/'.$f)&&(($x)?ereg($x.'$',$f):1))$l[]=$f;
return $l;
}
$arr = file_list("../download/",".zip");
$filename = $arr[0];
$filepath = "http://".$_SERVER['SERVER_NAME']."/download/".$arr[0];
print($filepath);
然后在android上,我使用BufferedReader正确获取链接:
private String getZipURL(){
String result = "";
InputStream is = null;
try{
String url = ZipURL;
HttpPost httppost = new HttpPost(url);
HttpParams httpParameters = new BasicHttpParams();
int timeoutConnection = 3000;
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
int timeoutSocket = 3000;
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
DefaultHttpClient httpclient = new DefaultHttpClient(httpParameters);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("getZipURL", "Error in http connection "+e.toString());
return null;
}
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "'n");
}
is.close();
result=sb.toString();
return result;
}catch(Exception e){
Log.e("convertZipURL", "Error converting result "+e.toString());
return null;
}
}
这看起来可能是错误的,但它如我所愿。我发布了代码,这样我就可以为有同样问题的人找到解决方法。谢谢