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江苏个人网站备案,成都微网站建设,吴忠网页设计,网站开发属于什么模式TCP连接发送文件 服务端为java#xff0c;客户端也为java。#xff08;实际场景中客户端和服务端可以为C#xff09;。 使用TCP连接发送文件需要注意#xff1a; 规定好双方的协议#xff0c;即发送端要怎么发送#xff0c;接收端要怎么接收 一、java服务端 public cla…TCP连接发送文件服务端为java客户端也为java。实际场景中客户端和服务端可以为C。使用TCP连接发送文件需要注意规定好双方的协议即发送端要怎么发送接收端要怎么接收一、java服务端publicclassTCPServer{privatestaticfinalintPORT8081;privatestaticfinalStringFILE_PATHC:\\Users\\Wasond\\Desktop\\11.zip;// 待发送的 100MB 文件privatestaticfinallongCHUNK_SIZE1024*1024;// 1MB 分块publicstaticvoidmain(String[]args){// SpringApplication.run(FileServerApplication.class, args);newThread(()-{try(ServerSocketserverSocketnewServerSocket(PORT)){System.out.println(Server started on port PORT);while(true){SocketclientSocketserverSocket.accept();newThread(()-sendFile(clientSocket)).start();}}catch(IOExceptione){e.printStackTrace();}}).start();}privatestaticvoidsendFile(SocketclientSocket){try(java.io.FileInputStreamfileInputStreamnewjava.io.FileInputStream(FILE_PATH);DataOutputStreamoutnewDataOutputStream(clientSocket.getOutputStream())){longfileSizenewjava.io.File(FILE_PATH).length();out.writeLong(fileSize);// 先发送文件大小客户端用于进度计算byte[]buffernewbyte[(int)CHUNK_SIZE];intbytesRead;longtransferred0;while(transferredfileSize){intchunkSize(int)Math.min(CHUNK_SIZE,fileSize-transferred);bytesReadfileInputStream.read(buffer,0,chunkSize);if(bytesRead-1)break;// 文件读取完毕// 发送分块数据out.writeInt(bytesRead);// 发送当前块实际大小out.write(buffer,0,bytesRead);transferredbytesRead;}System.out.println(File sent successfully. Total bytes: transferred);}catch(IOExceptione){e.printStackTrace();}finally{try{clientSocket.close();}catch(IOExceptione){e.printStackTrace();}}}}二、java客户端importjava.io.*;importjava.net.Socket;publicclassTCPClient{privatestaticfinalStringSERVER_HOSTlocalhost;privatestaticfinalintSERVER_PORT8081;privatestaticfinalStringOUTPUT_FILEC:\\Users\\Wasond\\Desktop\\777.zip;publicstaticvoidmain(String[]args){try(SocketsocketnewSocket(SERVER_HOST,SERVER_PORT);DataInputStreaminnewDataInputStream(socket.getInputStream());FileOutputStreamfosnewFileOutputStream(OUTPUT_FILE)){// 1. 读取文件总大小longfileSizein.readLong();System.out.println(Receiving file (size: fileSize bytes));// 2. 分块接收并写入本地文件longreceived0;while(receivedfileSize){intchunkSizein.readInt();// 读取当前块大小byte[]buffernewbyte[chunkSize];// in.readFully(buffer); // 确保读取完整块// 替换 in.readFully(buffer) 为更安全的读取方式intbytesRead0;while(bytesReadchunkSize){intresultin.read(buffer,bytesRead,chunkSize-bytesRead);if(result-1){thrownewIOException(Unexpected end of stream);}bytesReadresult;}fos.write(buffer);receivedchunkSize;// 打印进度可选System.out.printf(Progress: %.2f%%\n,(received*100.0/fileSize));}System.out.println(File received and saved to OUTPUT_FILE);}catch(IOExceptione){e.printStackTrace();}}}