使用java rmi协议将文本文件内容解析到客户端窗口？

我是RMI技术新手，在用户连接到RMI服务器后，一直在努力将文件内容解析到客户端命令窗口

问题是我可以读取文件，但它只读取第一行，而不读取文件的其余内容。有人可以查看我的代码，看看我哪里错了

接口 远程对象 RMI服务器 RMI客户端 当前结果 预期结果 客户窗口上每次应出现一个问题，当他/她回答第一个问题时，出现第二个问题，然后出现第三个问题，以及回答正确问题的最终分数

例如，在客户端窗口：
请选择正确答案
问题1：布拉拉拉？
1:A
2:b
3:c
输入：a

请选择正确答案
问题2：布拉拉拉？
1:A
2:b
3:c
输入：b
....

最终得分2分，可能3分

---

再见

您的while循环中有一个返回-确保只有一个迭代将以这种方式处理。。。 试试这个：

String content = "";
while(true){
   String line = br.readLine();
    if(line == null) break;
    content += line;
}
return content;

---

您在while循环中有一个返回-确保只有一个迭代将以这种方式处理。。。 试试这个：

String content = "";
while(true){
   String line = br.readLine();
    if(line == null) break;
    content += line;
}
return content;

---

@塞巴斯蒂安-谢谢，你知道如何一次读一个问题吗？只要新读的一行不是以“Q”开头就可以。但我通常建议使用数据库来实现这些目的。。。（如果我的答案对你有用，你能接受这个答案吗？Thx！）@Sebatian-谢谢你，你知道如何一次阅读一个问题吗？只要新阅读的一行不是以“Q”开头就可以阅读。但我通常建议使用数据库来实现这些目的。。。（如果我的答案对你有用，你能接受这个答案吗？谢谢！）

 /**
 * The purpose of this class is to implement the server. 
 * This class will have a main() method that:-
 * 1- creates an instance(object of remote object) of the remote object implementation,
 * 2- then exports the remote object
 * 3- then register the remote object with a Java RMI registry
 * */

    import java.rmi.registry.LocateRegistry;
    import java.rmi.registry.Registry;
    import java.rmi.server.UnicastRemoteObject;

//RMI Server
public class HelloServer {

public HelloServer() {
}

public static void main(String[] args) {
    try {

        //Create an instance of the remote object
        //here remoteObj is an instance of remote object 'HelloImpl'
        HelloImpl remoteObj = new HelloImpl();

        //To Export the remote object, we will use 'UnicastRe...exportObject(remoteObj, TCPPortNo)' method
        //When you export a remote object, you make that object available to accept incoming calls from clients
        //If you pass a zero to the method, the default TCP port number 1099 is used.
        //Note that the exportObject() method will return a stub, which is a term used to describe a proxy class
        //The stub class is a key to make remote object available for remote invocation
        RemoteInterface stub = (RemoteInterface) UnicastRemoteObject
                .exportObject(remoteObj, 0);
        // Bind the remote object's stub in the registry
        // create a registry instance, this will get me the handle to the registry
        Registry registry = LocateRegistry.getRegistry();
        registry.rebind("nameOfRObj", stub); // here we bind an instance of the object in the registry 
        System.out.println("Hello Server is ready to listen...");

    } catch (Exception e) {
        System.err.println("Server exception thrown" + e.toString());
        e.printStackTrace();
    }
}

  }

 import java.rmi.registry.LocateRegistry;
 import java.rmi.registry.Registry;
 import java.util.ArrayList;
 import java.util.List;


 public class HelloClient {

public HelloClient(){}

public static void main(String[] args){

    //String mood = inProfit() ? "happy" : "sad";
    //if args length is lessthan 1, then assign the value localHost to field hostName
    //otherwise, assign args[0] thats passed to hostName
    String hostName = (args.length < 1) ? "localHost" : args[0];
    try {
        //Locate a host from the registry mechanism.
        Registry registry = LocateRegistry.getRegistry(hostName);
        //look up the remote object by its name
        RemoteInterface stub = (RemoteInterface) registry.lookup("nameOfRObj"); 



        String name = stub.sayHello("Betty");
        System.out.println("Got info from server: " + " " + name);

        List<String> list =  new ArrayList<String>();
        list.add(stub.displayQuestions());

        for(String line : list)
        System.out.println("Content" + line);

    } catch (Exception e) {
        System.out.println("Client exception thrown: " + e.toString());
        e.printStackTrace();
    }
}

}

Questions database:
Q1: (A + B)*(A+B)
1. A*A + B*B
2. A*A +A*B + B*B
3. A*A +2*A*B + B*B  
Q2: (A + B)*(A - B)
1. A*A + 2*B*B
2. A*A - B*B 
3. A*A -2*A*B + B*B
Q3: sin(x)*sin(x) + cos(x)*cos(x)
1. 1 
2. 2
3. 3

D:\rmi>java HelloClient
Got info from server:  Hello: Betty
ContentQuestions database:

String content = "";
while(true){
   String line = br.readLine();
    if(line == null) break;
    content += line;
}
return content;