需要生成结构如下

代码搞起

package com;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;

import org.hibernate.type.PrimitiveByteArrayBlobType;

import com.alibaba.fastjson.JSONObject;
import com.sun.javafx.collections.MappingChange.Map;
import com.sun.org.apache.xerces.internal.xs.ShortList;

public class Test {
	private static List<String> list=new ArrayList<>();
	static {
		list.add("你好");
		list.add("你好呀！");
		list.add("你好吗？");
		list.add("你好吗？你在干嘛！");
		list.add("你好呀！你在干嘛？");
	}
	public static void getNode(HashMap<Node,List<String>> nodeMap) {
		for (Entry<Node, List<String>> entry : nodeMap.entrySet()) {
			Node node = entry.getKey();
			List<String> valueList = entry.getValue();
			valueList.sort(new Comparator<String>() {
				@Override
				public int compare(String o1, String o2) {
					return -Integer.compare(o1.length(),o2.length());
				}
			});
			List<String> removeStrList=new ArrayList<>();
			HashMap<Node,List<String>> newMap = new HashMap<Node,List<String>>();
			for (String var : valueList) {
				if(removeStrList.contains(var))
					continue;
				Node node2 = new Node(new ArrayList<Node>(), var);
				node.getNodeList().add(node2);
				List<String> newValues=new ArrayList<>();
				newMap.put(node2, newValues);
				for (String var2 : valueList) {
					if(!var2.equals(var)&&var.contains(var2)) {
						removeStrList.add(var2);
						newValues.add(var2);
					}
				}
			}
			List<Node> nodeList = node.getNodeList();
			for (Node node2 : nodeList) {
				List<String> list2 = newMap.get(node2);
				HashMap<Node,List<String>> tmpMap = new HashMap<Node,List<String>>();
				tmpMap.put(node2, list2);
					getNode(tmpMap);
			}
		}
	}
	public static void main(String[] args) {
		HashMap<Node,List<String>> hashMap = new HashMap<Node,List<String>>();
		Node node = new Node(new ArrayList<Node>(), null);
		hashMap.put(node, list);
		getNode(hashMap);
		System.out.println(JSONObject.toJSONString(node));
	}
}
class Node{
	private List<Node> nodeList;
	private String nodeValue;
	public Node(List<Node> nodeList, String nodeValue) {
		super();
		this.nodeList = nodeList;
		this.nodeValue = nodeValue;
	}
	public List<Node> getNodeList() {
		return nodeList;
	}
	public void setNodeList(List<Node> nodeList) {
		this.nodeList = nodeList;
	}
	public String getNodeValue() {
		return nodeValue;
	}
	public void setNodeValue(String nodeValue) {
		this.nodeValue = nodeValue;
	}
	@Override
	public String toString() {
		return "Node [nodeList=" + nodeList + ", nodeValue=" + nodeValue + "]";
	}
	
}