“软件导致连接中止：recv failed”的原因

Question

我找到了一个客户端/服务器代码，我收到了这个错误：

java.net.SocketException：软件导致连接中止：recv failed

服务器代码：

import java.net.*;
import java.lang.*;
import java.io.*;

public class Server{

//port number should be more than 1024

public static final int PORT = 1025;

public static void main( String args[]) throws IOException
{
 ServerSocket sersock = null;
 Socket sock = null;
 System.out.println(" Wait !! ");

 try
 {
  //  Initialising the ServerSocket
  sersock =  new ServerSocket(PORT);

  // Gives the Server Details Machine name, Port number

  System.out.println("Server Started  :"+sersock);

  try
  {

   // makes a socket connection to particular client after 
   // which two way communication take place

   sock = sersock.accept();

   System.out.println("Client Connected  :"+ sock);

   // Receive message from client i.e Request from client

   BufferedReader ins = new BufferedReader(new InputStreamReader(sock.getInputStream()));
   // Send message to the client i.e Response

   PrintStream ios = new PrintStream(sock.getOutputStream());
   ios.println("Hello from server");
   ios.close();

   // Close the Socket connection 

    sock.close();

    }
    catch(SocketException se)
    {
    System.out.println("Server Socket problem  "+se.getMessage());
    }
    catch(Exception e)
    {
    System.out.println("Couldn't start " 
                  + e.getMessage()) ;     
    }               

 // Usage of some methods in Socket class

  System.out.println(" Connection from :  " + 
  sock.getInetAddress());

 }finally{} // main 

}
}// Server class

客户端代码：

import java.lang.*;
import java.io.*;
import java.net.*;
import java.net.InetAddress;


public class client
{
 public static void main(String args[])
 {
 Socket sock=null;
 DataInputStream dis=null;
 PrintStream ps=null;
 System.out.println(" Trying to connect");

 try 
 {
 // to get the ip address of the  server by the name

 InetAddress ip =InetAddress.getByName
 ("localhost");

 // Connecting to the port 1025 declared in the Serverclass
 // Creates a socket with the server bind to it.

  sock= new Socket(ip,1025);
  ps= new PrintStream(sock.getOutputStream());
  ps.println(" Hi from client");
  BufferedReader is = new BufferedReader(new InputStreamReader(sock.getInputStream()));
  System.out.println(is.readLine());

 }
 catch(SocketException e)
 {
  System.out.println("SocketException " + e);
 }
 catch(IOException e)
 {
  System.out.println("IOException " + e);
 }

  // Finally closing the socket from the client side

 finally
 {
 try
  {
   sock.close();
  }
  catch(IOException ie)
  {
   System.out.println(" Close Error   :" + 
   ie.getMessage());
  }               
 }  // finally 

} // main 
}   // Class Client

服务器代码给出以下输出：

C:\WorkStation\Testcserver\src>java 服务器 等待 ！！ 服务器已启动：ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=1025] 客户端连接：Socket[addr=/127.0.0.1,port=56143,localport=1025] 连接来自：/127.0.0.1 C:\WorkStation\Testcserver\src>

客户端代码给出以下输出：

C:\WorkStation\testClient\src>java 客户端 尝试连接 SocketException java.net.SocketException：软件导致连接中止：recv 失败的

    C:\WorkStation\testClient\src>java client
 Trying to connect
java.net.SocketException: Software caused connection abort: recv failed
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:150)
        at java.net.SocketInputStream.read(SocketInputStream.java:121)
        at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
        at java.io.InputStreamReader.read(InputStreamReader.java:184)
        at java.io.BufferedReader.fill(BufferedReader.java:154)
        at java.io.BufferedReader.readLine(BufferedReader.java:317)
        at java.io.BufferedReader.readLine(BufferedReader.java:382)
        at client.main(client.java:30)

Answer 1

服务器不等待来自客户端的任何数据，当服务器退出时，连接将被关闭。

在服务器代码中添加ins.readLine()，如下所示：

// Receive message from client i.e Request from client

BufferedReader ins = new BufferedReader(new InputStreamReader(sock.getInputStream()));
System.out.println(ins.readLine());

Answer 2

就我而言，它与客户端身份验证有关。 当我尝试从 Java 代码访问 SOAP API 而不设置 keystore/keystorePassword 并且从堆栈跟踪中我们无法确定身份验证存在问题时，它发生在我身上。

在调用 SOAP API 之前添加了以下几行之后，它按预期工作。

System.setProperty("javax.net.ssl.keyStoreType", "Your Cert Type");
System.setProperty("javax.net.ssl.keyStore", "Your cert path");
System.setProperty("javax.net.ssl.keyStorePassword", "Password");

Answer 3

有一些与防火墙相关的问题。请关闭防火墙，否则，将您的互联网连接到 wifi/个人 wifi。这些解决方案对我有用。