package com.lanbao;
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import com.alibaba.fastjson.JSONObject;
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import org.apache.commons.collections.MapUtils;
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import org.jeecg.modules.dry.vo.SocketMsgVo;
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import org.junit.Test;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.net.Socket;
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import java.nio.channels.SocketChannel;
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import java.util.HashMap;
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import java.util.Map;
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public class SocketTest {
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public static void main(String[] args) {
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Map<String, Integer> mapA = new HashMap<>();
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mapA.put("apple", 10);
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mapA.put("banana", 20);
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mapA.put("orange", 30);
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mapA.put("hah", 30);
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Map<String, Integer> mapB = new HashMap<>();
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mapB.put("apple", 10);
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mapB.put("pineapple", 40);
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mapB.put("dd", 40);
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// 检查 mapB 中缺少的键
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// 检查 mapB 中缺少的键
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mapA.keySet().stream()
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.filter(key -> !mapB.containsKey(key))
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.forEach(key -> System.out.println("Map B 中缺少的键: " + key));
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}
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@Test
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public void test(){
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}
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}
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