android java Socket多文件发送

android java Socket多文件发送       

 

     

[html] view plaincopyprint?

1. for (int i =0;i <files.length; i++) { 
2.                 byte[] namebyte = files[i].getName().getBytes("UTF-8"); 
3.                 long size =files[i].length(); 
4.                 int nameLength = namebyte.length; 
5.                 fileChannel =new FileInputStream(files[i]).getChannel(); 
6.                 ByteBuffer buffer =ByteBuffer.allocate(1024); 
7.                 buffer.clear(); 
8.                 buffer.putInt(4+8+nameLength); 
9.                 buffer.putInt(nameLength); 
10.                 buffer.put(namebyte); 
11.                 buffer.putLong(size); 
12.                 buffer.flip(); 
13.                 while(buffer.hasRemaining()){ 
14.                     sc.write(buffer); 
15.                 } 
16.                 long count = 1024*1024; 
17.                 long read =0L; 
18.                 while(read < size){ 
19.                     if(size - read <count) 
20.                         count = size - read; 
21.                     read += fileChannel.transferTo(0+read, count, sc); 
22.                     System.out.println("read:"+read); 
23.                 } 
24.                 fileChannel.close(); 
25.                 if(i < files.length -1){ 
26.                     sc.write(ByteBuffer.wrap(new byte[]{1})); 
27.                     System.out.println(1); 
28.                 } 
29.                 else 
30.                     sc.write(ByteBuffer.wrap(new byte[]{0})); 
31.             } 

for (int i = 0;i < files.length; i++) {                byte[] namebyte = files[i].getName().getBytes("UTF-8");                long size = files[i].length();                int nameLength = namebyte.length;                fileChannel = new FileInputStream(files[i]).getChannel();                ByteBuffer buffer = ByteBuffer.allocate(1024);                buffer.clear();                buffer.putInt(4+8+nameLength);                buffer.putInt(nameLength);                buffer.put(namebyte);                buffer.putLong(size);                buffer.flip();                while(buffer.hasRemaining()){                    sc.write(buffer);                }                long count = 1024*1024;                long read = 0L;                while(read < size){                    if(size - read < count)                        count = size - read;                    read += fileChannel.transferTo(0+read, count, sc);                    System.out.println("read:"+read);                }                fileChannel.close();                if(i < files.length -1){                    sc.write(ByteBuffer.wrap(new byte[]{1}));                    System.out.println(1);                }                else                    sc.write(ByteBuffer.wrap(new byte[]{0}));            }

    接收方核心代码，由于发送的时候文件的信息，如：文件名和文件大小是分开发送的，所以接收的时候也是分开接收的，多个文件的时候接收方式一个一个接收的。

   

[html] view plaincopyprint?

1. private void parseHead(int headlength) { 
2.         buffer = ByteBuffer.allocate(headlength); 
3.         try { 
4.             while(buffer.position() < buffer.capacity()) 
5.               clientChannel.read(buffer); 
6.             buffer.flip(); 
7.             byte[] filenamebyte =new byte[buffer.getInt()]; 
8.             buffer.get(filenamebyte); 
9.             fileName =new String(filenamebyte,"UTF-8"); 
10.             fileSize = buffer.getLong(); 
11.         } catch (IOException e) { 
12.             e.printStackTrace(); 
13.         } 
14.     } 
15.  
16. private void parseBody(long size) { 
17.         long read = 0L; 
18.         long count = 8192; 
19.         FileChannel fileChannel =null; 
20.         try { 
21.             fileChannel =new FileOutputStream(path + fileName) 
22.                     .getChannel(); 
23.             System.out.println(fileName); 
24.             while (read < size) { 
25.                 if (size - read <count) 
26.                     count = size - read; 
27.                 read += fileChannel 
28.                         .transferFrom(clientChannel, 0 + read, count); 
29.             } 
30.  
31.         } catch (IOException e) { 
32.             e.printStackTrace(); 
33.         }finally{ 
34.             try { 
35.                 fileChannel.close(); 
36.             } catch (IOException e) { 
37.                 e.printStackTrace(); 
38.             } 
39.         } 
40.     } 

private void parseHead(int headlength) {        buffer = ByteBuffer.allocate(headlength);        try {            while(buffer.position() < buffer.capacity())              clientChannel.read(buffer);            buffer.flip();            byte[] filenamebyte = new byte[buffer.getInt()];            buffer.get(filenamebyte);            fileName = new String(filenamebyte,"UTF-8");            fileSize = buffer.getLong();        } catch (IOException e) {            e.printStackTrace();        }    }private void parseBody(long size) {        long read = 0L;        long count = 8192;        FileChannel fileChannel = null;        try {            fileChannel = new FileOutputStream(path + fileName)                    .getChannel();            System.out.println(fileName);            while (read < size) {                if (size - read < count)                    count = size - read;                read += fileChannel                        .transferFrom(clientChannel, 0 + read, count);            }        } catch (IOException e) {            e.printStackTrace();        }finally{            try {                fileChannel.close();            } catch (IOException e) {                e.printStackTrace();            }        }    }

好了，希望对你有所帮助，有事去了。不行的话留下邮箱，我发送源码给你。