( 60分 ) 补充代码。微信接收的消息类型多样,如文本、语音、转账等。下面代码模拟微信完成不同类型消息的接收处理过程,输出效果如下: 请分析代码,补充标号处缺失的代码。类图如下: 代码如下:
时间: 2024-05-15 18:17:18 浏览: 13
```java
import java.util.Scanner;
// Message类,代表微信消息
class Message {
private String type;
private String content;
public Message(String type, String content){
this.type = type;
this.content = content;
}
public String getType(){
return type;
}
public void setType(String type){
this.type = type;
}
public String getContent(){
return content;
}
public void setContent(String content){
this.content = content;
}
}
// MessageHandler接口,定义了处理微信消息的方法
interface MessageHandler {
void handle(Message message);
}
// TextMessageHandler类,处理文本消息
class TextMessageHandler implements MessageHandler{
public void handle(Message message) {
System.out.println("处理文本消息:" + message.getContent());
}
}
// VoiceMessageHandler类,处理语音消息
class VoiceMessageHandler implements MessageHandler {
public void handle(Message message) {
System.out.println("处理语音消息:" + message.getContent());
}
}
// TransferMessageHandler类,处理转账消息
class TransferMessageHandler implements MessageHandler {
public void handle(Message message) {
System.out.println("处理转账消息:" + message.getContent());
}
}
// MessageReceiver类,用于接收微信消息并交给对应的处理器去处理
class MessageReceiver {
private MessageHandler textMessageHandler;
private MessageHandler voiceMessageHandler;
private MessageHandler transferMessageHandler;
public MessageReceiver(){
textMessageHandler = new TextMessageHandler();
voiceMessageHandler = new VoiceMessageHandler();
transferMessageHandler = new TransferMessageHandler();
}
public void receive(Message message){
String messageType = message.getType();
switch (messageType){
case "text":
textMessageHandler.handle(message); // 标号1
break;
case "voice":
voiceMessageHandler.handle(message); // 标号2
break;
case "transfer":
transferMessageHandler.handle(message); // 标号3
break;
default:
System.out.println("无法处理的消息类型:" + messageType);
}
}
}
// Main类,用于测试微信消息的接收和处理
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
MessageReceiver receiver = new MessageReceiver();
while (true){
System.out.println("请输入消息类型(text/voice/transfer):");
String type = scanner.nextLine();
System.out.println("请输入消息内容:");
String content = scanner.nextLine();
Message message = new Message(type, content);
receiver.receive(message);
}
}
}
```
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