最近项目中需要客户端和Socket互相传递数据时候需要相互传递图片所以做下总结以免以后忘记,也希望给大家带来帮助。
先上客户端的代码:
根据图片名称上传照相机中单个照片(此方法为自己封装)
参数所代表的是照片的路径。
private void upload(String path) {
int length = 0;
byte[] sendBytes = null;
Socket socket = null;
DataOutputStream dos = null;
FileInputStream fis = null;
try {
try {
socket = new Socket(ip,duankou);
dos = new DataOutputStream(socket.getOutputStream());
File file = new File(filename);
fis = new FileInputStream(file);
sendBytes = new byte[1024];
while ((length = fis.read(sendBytes, 0, sendBytes.length)) > 0) {
dos.write(sendBytes, 0, length);
dos.flush();
}
} finally {
if (dos != null)
dos.close();
if (fis != null)
fis.close();
if (socket != null)
socket.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
注:在android Activity调用此方法的时候一定要开一个子线程去调用(网络访问在主线程中是android中一个标志性的错误!!!!)
接下来是服务端的代码,测试使用新建一个java类即可
public class Receiver implements Runnable {
public static void main(String[] args) {
try {
final ServerSocket server = new ServerSocket(3333);
Thread th = new Thread(new Runnable() {
public void run() {
while (true) {
try {
System.out.println("开始监听...");
Socket socket = server.accept();
System.out.println("有链接");
receiveFile(socket);
} catch (Exception e) {
}
}
}
});
th.run(); // 启动线程运行
} catch (Exception e) {
e.printStackTrace();
}
}
public void run() {
}
public static void receiveFile(Socket socket) {
byte[] inputByte = null;
int length = 0;
DataInputStream dis = null;
FileOutputStream fos = null;
try {
try {
dis = new DataInputStream(socket.getInputStream());
fos = new FileOutputStream(new File("./cc.jpg"));
inputByte = new byte[1024];
System.out.println("开始接收数据...");
while ((length = dis.read(inputByte, 0, inputByte.length)) > 0) {
System.out.println(length);
fos.write(inputByte, 0, length);
fos.flush();
}
System.out.println("完成接收");
} finally {
if (fos != null)
fos.close();
if (dis != null)
dis.close();
if (socket != null)
socket.close();
}
} catch (Exception e) {
}
}
}
最后可以在java项目的根目录下看有没有成功了。