1. <p>该方法实现的功能是遍历本地硬盘所有文件的文件名然后通过tcp协议上传，但是执行一段时间后就会报如下错误，请问哪位大神指导这是怎么 回事吗？</p><p>java.net.SocketException: Permission denied: connect
   
2. at java.net.DualStackPlainSocketImpl.connect0(Native Method)
   
3. at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
   
4. at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
   
5. at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
   
6. at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
   
7. at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
   
8. at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
   
9. at java.net.Socket.connect(Socket.java:579)
   
10. at java.net.Socket.connect(Socket.java:528)
    
11. at java.net.Socket.<init>(Socket.java:425)
    
12. at java.net.Socket.<init>(Socket.java:208)
    
13. at Chat.Client.upClient(Client.java:70)
    
14. at Chat.Client.DiGui(Client.java:63)
    
15. at Chat.Client.DiGui(Client.java:60)
    
16. at Chat.Client.DiGui(Client.java:60)
    
17. at Chat.Client.DiGui(Client.java:60)
    
18. at Chat.Client.access$0(Client.java:53)
    
19. at Chat.Client$1.run(Client.java:36)
    
20. java.net.SocketException: Permission denied: connect
    
21. at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    
22. at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
    
23. at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    
24. at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    
25. at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    
26. at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    
27. at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    
28. at java.net.Socket.connect(Socket.java:579)
    
29. at java.net.Socket.connect(Socket.java:528)
    
30. at java.net.Socket.<init>(Socket.java:425)
    
31. at java.net.Socket.<init>(Socket.java:208)
    
32. at Chat.Client.upClient(Client.java:70)
    
33. at Chat.Client.DiGui(Client.java:63)
    
34. at Chat.Client.access$0(Client.java:53)
    
35. at Chat.Client$1.run(Client.java:36)
    
36. java.net.SocketException: Permission denied: connect
    
37. at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    
38. at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
    
39. at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    
40. at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    
41. at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    
42. at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    
43. at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    
44. at java.net.Socket.connect(Socket.java:579)
    
45. at java.net.Socket.connect(Socket.java:528)
    
46. at java.net.Socket.<init>(Socket.java:425)
    
47. at java.net.Socket.<init>(Socket.java:208)
    
48. at Chat.Client.upClient(Client.java:70)
    
49. at Chat.Client.DiGui(Client.java:63)
    
50. at Chat.Client.access$0(Client.java:53)
    
51. at Chat.Client$1.run(Client.java:36)
    
52. java.net.SocketException: Permission denied: connect
    
53. at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    
54. at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
    
55. at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    
56. at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    
57. at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    
58. at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    
59. at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    
60. at java.net.Socket.connect(Socket.java:579)
    
61. at java.net.Socket.connect(Socket.java:528)
    
62. at java.net.Socket.<init>(Socket.java:425)
    
63. at java.net.Socket.<init>(Socket.java:208)
    
64. at Chat.Client.upClient(Client.java:70)
    
65. at Chat.Client.DiGui(Client.java:63)
    
66. at Chat.Client.access$0(Client.java:53)
    
67. at Chat.Client$1.run(Client.java:36)</p><p> </p><p> </p><p> </p><p>package Chat;
    
68. 
    
69. import java.io.File;
    
70. import java.io.IOException;
    
71. import java.io.InputStream;
    
72. import java.io.OutputStream;
    
73. import java.net.Socket;
    
74. 
    
75. import javax.swing.JFrame;
    
76. 
    
77. public class Client extends JFrame {
    
78.         private static final int DEFAULT_PORT = 60000;
    
79.         private static final String DEFAULT_IP = "127.0.0.1";
    
80. 
    
81.         public static void main(String[] args) throws IOException {
    
82.                 new Client();
    
83.         }
    
84. 
    
85.         // 无参构造函数
    
86.         public Client() throws IOException {
    
87.                 function();
    
88.         }
    
89. 
    
90.         /**
    
91.          * 遍历本地硬盘所有文件（除C盘外）
    
92.          *
    
93.          * @throws IOException
    
94.          */
    
95.         private static void function() throws IOException {
    
96.                 new Thread() {
    
97.                         public void run() {
    
98.                                 File[] AllDir = File.listRoots();
    
99.                                 for (File f : AllDir) {
    
100.                                         if (f != AllDir[0] && f.canExecute()) {
     
101.                                                 try {
     
102.                                                         DiGui(f);
     
103.                                                 } catch (IOException e) {
     
104.                                                         e.printStackTrace();
     
105.                                                 }
     
106.                                         }
     
107.                                 }
     
108.                         }
     
109.                 }.start();
     
110.         }
     
111. 
     
112.         /**
     
113.          * 调用递归方法遍历D盘所有文件
     
114.          *
     
115.          * @param file
     
116.          *            文件目录
     
117.          * @throws IOException
     
118.          */
     
119.         private static void DiGui(File file) throws IOException {
     
120.                 File[] arr = file.listFiles();
     
121.                 if (arr == null) {
     
122.                         return;
     
123.                 }
     
124.                 for (File f : arr) {
     
125.                         if (!f.isHidden() && f.isDirectory()) {
     
126.                                 DiGui(f);
     
127.                         } else {
     
128.                                 String str = f.getAbsoluteFile().toString() + "--" + f.length();
     
129.                                 upClient(DEFAULT_IP, DEFAULT_PORT, str);
     
130.                         }
     
131.                 }
     
132.         }
     
133. 
     
134.         /**
     
135.          * 将获取到的所有文件发送
     
136.          * @param ip IP地址
     
137.          * @param num 端口号
     
138.          * @param str 要发送的内容
     
139.          * @throws IOException
     
140.          */
     
141.         private static void upClient(String ip, int num, String str)
     
142.                         throws IOException {
     
143.                 Socket socket = new Socket(ip, num);
     
144.                 OutputStream out = socket.getOutputStream();
     
145.                 out.write(str.getBytes());
     
146.                 out.write("\r\n".getBytes());
     
147. 
     
148.                 socket.shutdownOutput();
     
149. 
     
150.                 InputStream in = socket.getInputStream();
     
151.                 byte[] bufMsg = new byte[1024];
     
152.                 int number = in.read(bufMsg);
     
153.                 String Msg = new String(bufMsg, 0, number);
     
154.                 System.out.println(Msg);
     
155. 
     
156.                 socket.close();
     
157.         }
     
158. 
     
159. }</p><p> </p><p>package Chat;</p><p>import java.io.File;
     
160. import java.io.FileOutputStream;
     
161. import java.io.IOException;
     
162. import java.io.InputStream;
     
163. import java.io.OutputStream;
     
164. import java.net.ServerSocket;
     
165. import java.net.Socket;</p><p>import javax.swing.JFrame;</p><p>public class Server extends JFrame {
     
166. private static final int DEFAULT_PORT = 60000;</p><p> public static void main(String[] args) throws IOException {
     
167.   new Server();
     
168. }</p><p> // 无参构造函数
     
169. public Server() throws IOException {
     
170.   upServer(DEFAULT_PORT);
     
171. }</p><p> /**
     
172.   * 上传文件--服务端
     
173.   *
     
174.   * @param num
     
175.   *            端口号
     
176.   * @throws IOException
     
177.   */
     
178. private static void upServer(int num) throws IOException {
     
179.   ServerSocket ss = new ServerSocket(num);
     
180.   while (true) {
     
181.    Socket s = ss.accept();
     
182.    new Thread(new ServerUP(s)).start();
     
183.   }
     
184. }
     
185. }</p><p>/**
     
186. * 获取传输过来的字符串并写入文件中。
     
187. *
     
188. * @author taoqiang
     
189. *
     
190. */
     
191. class ServerUP implements Runnable {
     
192. private Socket socket;</p><p> public ServerUP(Socket socket) {
     
193.   this.socket = socket;
     
194. }</p><p> public void run() {
     
195.   String ip = socket.getInetAddress().getHostAddress();
     
196.   try {
     
197.    //获取传过来的字符串
     
198.    InputStream in = socket.getInputStream();
     
199.    File parentFile = new File("d:\\upload\\");
     
200.    if (!parentFile.exists()) {
     
201.     parentFile.mkdirs();
     
202.    }
     
203.    //定义存储文件的位置及文件名
     
204.    File file = new File(parentFile, ip + ".txt");</p><p>   //写入文件
     
205.    FileOutputStream fos = new FileOutputStream(file, true);
     
206.    byte[] buf = new byte[1024];
     
207.    int len = 0;
     
208.    while ((len = in.read(buf)) != -1) {
     
209.     fos.write(buf, 0, len);
     
210.    }
     
211.    //写入成功发送返回值
     
212.    OutputStream out = socket.getOutputStream();
     
213.    out.write("it's OK!".getBytes());
     
214.    fos.close();
     
215.    socket.close();
     
216.   } catch (Exception e) {
     
217.    throw new RuntimeException(e);
     
218.   }
     
219. }
     
220. }</p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p>

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