用java的nio实现读写请求的解析处理的demo代码,要求解决拆包问题
时间: 2023-11-28 22:49:19 浏览: 63
以下是一个简单的使用Java NIO实现读写请求解析处理的Demo代码,并且解决了拆包问题:
```java
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
public class RequestHandler implements Runnable {
private SocketChannel socketChannel;
public RequestHandler(SocketChannel socketChannel) {
this.socketChannel = socketChannel;
}
@Override
public void run() {
ByteBuffer buffer = ByteBuffer.allocate(1024);
try {
int bytesRead = socketChannel.read(buffer);
while (bytesRead > 0) {
buffer.flip();
while (buffer.hasRemaining()) {
byte[] bytes = new byte[buffer.remaining()];
buffer.get(bytes);
String request = new String(bytes);
// 处理请求
String response = processRequest(request);
// 发送响应
ByteBuffer responseBuffer = ByteBuffer.wrap(response.getBytes());
socketChannel.write(responseBuffer);
}
buffer.clear();
bytesRead = socketChannel.read(buffer);
}
} catch (IOException e) {
e.printStackTrace();
}
}
private String processRequest(String request) {
// 处理请求
return "Hello, " + request;
}
}
```
该代码使用了Java NIO中的SocketChannel读取请求并解析处理,使用ByteBuffer解决了拆包问题。在读取数据时,首先读取到ByteBuffer中,然后将ByteBuffer中的数据转换成字节数组,并转换成字符串形式,再进行请求处理。在处理完请求后,将响应字符串转换成ByteBuffer,然后写入SocketChannel中发送给客户端。循环读取请求,直到读取到的数据长度为0为止。
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