Java中类似单元格之间的计算公式解析，如A1+B3-B4

package net.riking.util;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class TestUtil {

    static ScriptEngine jse = new ScriptEngineManager().getEngineByName("JavaScript");

    public static void main(String[] args) {
        String logicValue = "A1+B3-B4";
        // 根据运算符切割
        String[] cells = logicValue.split("[\\+\\-\\*\\/]");
        for (String str : cells) {
            System.out.println(str);
        }
        // 按顺序提取运算符
        String[] strs = matchData(logicValue);
        for (String str : strs) {
            System.out.println(str);
        }
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < cells.length; i++) {
            sb.append(cells[i]);
            if (i < strs.length) {
                sb.append(strs[i]);
            }
        }
        System.out.println(sb);
        // 通过解析提取，用值替换单元格，计算如：20+11-13
        try {
            Object obj = jse.eval("20+11-13");
            System.out.println("20+11-13=" + obj);
        } catch (ScriptException e) {
            e.printStackTrace();
        }

    }

    public static String[] matchData(String logicValue){
        List<String> list=new ArrayList<>();
        Pattern p;
        Matcher m;
        p = Pattern.compile("\\+|\\-|\\*|\\/|\\(|\\)");
        m = p.matcher(logicValue);
        while(m.find()){
            list.add(m.group());
        }
        return list.stream().toArray(String[]::new);
    }
}

　　运行结果：