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JavaTCP上傳圖片代碼實例

1.客戶端代碼

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public class UploadPicClient {
 public static void main(String[] args) throws UnknownHostException, IOException {
 // TODO Auto-generated method stub
 //1,創(chuàng)建客戶端socket
 Socket s = new Socket("localhost",10088);
 //2,讀取客戶端要上傳的圖片文件
 FileInputStream fis = new FileInputStream("D:\\workspace\\day2019.1.17\\lanjing.jpg");
 //3,獲取Socket輸出流，將讀到的圖片的數(shù)據(jù)發(fā)送到服務(wù)端
 OutputStream out = s.getOutputStream();
 byte[] buf = new byte[1021];
 int len =0;
 while((len=fis.read(buf))!=-1){
  out.write(buf,0,len);
 }
 //告訴服務(wù)端說：這邊的數(shù)據(jù)發(fā)送完畢讓服務(wù)端停止讀取
 s.shutdownOutput();
 //讀取服務(wù)端發(fā)回的內(nèi)容
 InputStream in = s.getInputStream();
 byte[] bufIn = new byte[1024];
 int lenIn = in.read(buf);
 String text = new String (buf,0,lenIn);
 System.out.println(text);
 //關(guān)閉資源
 fis.close();
 s.close();
 }
}

2.服務(wù)端代碼

public class UploadPicSever {
public static void main(String[] args) throws IOException {
 // TODO Auto-generated method stub
 //創(chuàng)建tcp的socket服務(wù)端
 ServerSocket ss = new ServerSocket(10088);
 //獲取客戶端
 Socket s = ss.accept();
 String ip = s.getInetAddress().getHostAddress();
 System.out.println(ip+".....connected");
 //讀取客戶端發(fā)來的數(shù)據(jù)
 InputStream in = s.getInputStream();
 //將讀取到的數(shù)據(jù)存儲到一個文件中。
 File dir = new File("D:\\workspace\\day2019.1.17");
 if(!dir.exists()){
 dir.mkdirs();
 }
 File file = new File(dir,"blue.jpg");
 FileOutputStream fos = new FileOutputStream(file);
 byte[] buf = new byte[1024];
 int len = 0;
 while ((len=in.read(buf))!=-1){
 fos.write(buf,0,len);
 }
 //獲取socket輸出流，將上傳成功字樣發(fā)送給客戶端
 OutputStream out = s.getOutputStream();
 out.write("上傳成功".getBytes());
 fos.close();
 s.close();
 ss.close();
}

上傳后和上傳前的圖片：

JavaTCP上傳圖片代碼實例