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。