网址 - 文件未发现异常 [英] URL - File not found exception

问题描述

我试图从特定URL的形象，但它把我的异常。文件未发现异常。如果我尝试从我的浏览器中打开的网址，我可以看到图像。请帮忙。下面是我的code。谢谢你。

 字符串fileURL =htt​​p://sposter.smartag.my/images/KFC_Voucher.jpg;
字符串文件名=caldophilus.jpg;
网址U =新的URL（fileURL）;
HttpURLConnection的C =（HttpURLConnection类）u.openConnection（）;
c.setRequestMethod（GET）;
c.setDoOutput（真正的）;
c.connect（）;
文件根= Environment.getExternalStorageDirectory（）;
FileOutputStream中F =新的FileOutputStream（新文件（根目录，文件名））;
InputStream的X = c.getInputStream（）;
INT大小= x.available（）;
BYTE B [] =新的字节[尺寸]
x.read（B）;
f.write（B）;
f.flush（）;
f.close（）;
 

解决方案

我尝试这一点，其做工精细。谢谢你。

 网​​址URL =新的URL（fileURL）;
URLConnection的体conexion = url.openConnection（）;
conexion.connect（）;
INT lenghtOfFile = conexion.getContentLength（）;
Log.d（ANDRO_ASYNC的Lenght文件：+ lenghtOfFile）;
的InputStream输入=新的BufferedInputStream（url.openStream（））;
的OutputStream输出=新的FileOutputStream（/ SD卡/ caldophilus.jpg）;
字节的数据[] =新的字节[1024];
总长= 0;
而（（计数= input.read（数据））！=  -  1）{
共有+ =计数;
output.write（数据，0，计数）;
}
output.flush（）;
output.close（）;
input.close（）;
 

I'm trying to get a image from particular URL but it throw me an exception. File not found exception. If i try to open the url from my browser, i can see the images. Please help. Below is my code. Thanks.

String fileURL = "http://sposter.smartag.my/images/KFC_Voucher.jpg";
String FILENAME = "caldophilus.jpg";
URL u = new URL(fileURL);
HttpURLConnection c = (HttpURLConnection) u.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
File root = Environment.getExternalStorageDirectory();
FileOutputStream f = new FileOutputStream(new File(root, FILENAME));
InputStream x=c.getInputStream();
int size=x.available();
byte b[]= new byte[size];
x.read(b);
f.write(b);
f.flush();
f.close();

解决方案

i try this and its work fine. Thanks.

URL url = new URL(fileURL);
URLConnection conexion = url.openConnection();
conexion.connect();
int lenghtOfFile = conexion.getContentLength();
Log.d("ANDRO_ASYNC", "Lenght of file: " + lenghtOfFile);
InputStream input = new BufferedInputStream(url.openStream());
OutputStream output = new FileOutputStream("/sdcard/caldophilus.jpg");
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();

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