我有一个简单的HTML服务器程序,可以在端口8000上侦听请求。我希望能够从服务器程序请求HTML文件,并将请求的HTML发送回浏览器。目前,服务器接收请求并从请求中解析所请求的文件名,甚至将html文件的内容打印到控制台。但是,当我尝试将HTML文件内容打印到连接的套接字(返回浏览器)时,没有任何反应;浏览器只是继续加载。
我的服务器类相对简单,只为每个连接创建此runnable类的实例RequestHandler:
package server;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
public class RequestHandler extends Thread {
Object block;
ServerSocket serverSocket;
BufferedReader socketReader;
PrintWriter socketWriter;
public RequestHandler(Object block, ServerSocket serverSocket){
this.block = block;
this.serverSocket = serverSocket;
}
@Override
public void run() {
try{
System.out.println("Waiting for request...");
Socket clientSocket = serverSocket.accept();
System.out.println("Connection made.");
synchronized(block){
System.out.print("Notifying server thread...");
block.notify();
System.out.println("...done");
System.out.println();
}
socketReader = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
socketWriter = new PrintWriter(clientSocket.getOutputStream(), true);
String input;
while((input = socketReader.readLine()) != null){
// System.out.println(input);
if(input.startsWith("GET")){
getResource(input);
}
}
}catch(IOException e){
System.out.println("IOException!");
e.printStackTrace();
}
}
public void getResource(String getRequest){
String[] parts = getRequest.split("\\s+");
String filename = parts[1].substring(1);
System.out.println(filename);
File resource = new File(filename);
sendResponse(resource);
}
public void sendResponse(File resource){
System.out.println(resource.getAbsolutePath());
Scanner fileReader;
try {
fileReader = new Scanner(resource);
while(fileReader.hasNext()){
String line = fileReader.nextLine();
System.out.println(line);
socketWriter.println(line);
}
} catch (FileNotFoundException e) {
System.out.println("File not found!");
e.printStackTrace();
}
}
}
答案 0 :(得分:3)
当您完成写入或从流中读取时,您应该始终做什么? (我知道你问题的答案,但我问这个问题,因为你把你的问题标记为“家庭作业”)