这样写会阻塞在下面那一行,而调整位置后成功时什么问题,在我的理解中这一行的声明只要出现在使用之前就可以了。望解答,感谢
客户端上传文件程序
Socket socket = new Socket("127.0.0.1", 8888);
File file = new File("D:\\1610\\android素材\\bg04.jpg");
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());
**ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());** //阻塞在这一行?我把这一行放在下面时该程序就运行成功,这之间有什么关系吗?希望大神解答,感谢!!!!
System.out.println(file.getName());
oos.writeUTF(file.getName());
oos.writeLong(file.length());
byte[] arr = new byte[1024];
int len;
while((len = bis.read(arr)) != -1){
oos.write(arr,0,len);
oos.flush();
}
// 上面那一行放在该位置
System.out.println("1111");
if(ois.readUTF().equals("下载成功")){
System.out.println("文件上传成功");
ois.close();
oos.close();
bis.close();
socket.close();
}
服务端接受文件代码块
ServerSocket serverSocket = new ServerSocket(8888);
System.out.println("服务器已启动...");
while (true) {
Socket socket = serverSocket.accept();
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
//这个位置
String fileName=ois.readUTF();
long extent = ois.readLong();
System.out.println(extent);
File file = new File("D:/TestFile");
if (file.isDirectory()) {
System.out.println("文件夹已存在");
} else {
file.mkdirs();
}
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file.getAbsolutePath() +"/"+ fileName));
BufferedWriter bw = new BufferedWriter(new FileWriter("down.log",true));
_**ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());**_//或者是我把这一行放在上面位置也能成功
byte[] arr = new byte[1024];
int len;
long total = 0;
while ((len = ois.read(arr)) != -1) {
bos.write(arr, 0, len);
total += len;
bw.write("当前已下载" + (total * 100) / extent + "%"
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
bw.newLine();
bw.flush();
if (total == extent) {
oos.writeUTF("下载成功");
break;
}
}
System.out.println("下载成功");
oos.close();
bw.close();
bos.close();
ois.close();
socket.close();
}