JAVA使用socket发送数据，服务端接收到的数据总是不一致，不明白哪里错了，请大神指点！

客户端：
package test;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.security.PublicKey;
public class SocketClient {
public static byte[] varout = "987654321hijklmn".getBytes() ;
public static byte[] varout1 = {'1','2','3','4','5','6','7','8','9'} ;
public static byte[] varout2 = {'a','b','c','d','e','f','g'} ;
public static void main(String[] args) {
Socket socket = null;
try {
socket = new Socket("127.0.0.1", 8000);
socket.setSoTimeout(100000);
OutputStream out1 = socket.getOutputStream();
out1.write(varout);
out1.write(varout1);
out1.write(varout2);
out1.flush();
out1.close();
}
catch (Exception e){
e.printStackTrace();
}
finally {
try{
socket.close();
}
catch (Exception e){
e.printStackTrace();
}
}
}
}
服务端：
package test;

import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Socket;
import java.net.ServerSocket;
public class SocketServer {
public static void main(String[] args) {
try {
ServerSocket serverSocket2 = new ServerSocket(8000);
while(true){
Socket s2 = serverSocket2.accept();
InputStream in = s2.getInputStream();
s2.setSoTimeout(10000);
//使用InputStream.read(var1)接收数据
byte[] var1 = new byte[10000];
while(in.read(var1) !=-1){
System.out.println(in.read(var1));
System.out.println(new String(var1));
}
System.out.println("结束："+new String(var1));
}
}
catch (Exception e){
e.printStackTrace();
}
}
}
服务端接收的结果：

https://blog.csdn.net/yiluxiangqian7715/article/details/50173573/

while(in.read(var1) !=-1){
    System.out.println(in.read(var1));
    System.out.println(new String(var1));
}

这里有问题，while(in.read(var1)!=-1这个时候，已经把流的数据读进var1了，所以你再读一遍就是-1

服务端这么改写：

while(in.read(var1) !=-1){
System.out.println(new String(var1));
}

收回之前说的，不是server端读取部分的问题，关键是java.io.OutputStream#write(byte[])调用后就会立即发送到server，所以你的示例代码相当于发送了三次请求。，server接收时有时一次接收到了所有的字符串，有时分了两次/三次接收到，由于没有清空var1，所以甚至会出现abcdefg89hijklmn这种结果。

server端的读取部分改成

byte[] var1 = new byte[10000];
int i = in.read(var1);
while (i != -1) {
    System.out.println(i);
    System.out.println(new String(var1));
    i = in.read(var1);
}