package com.zt.life.modules.mainPart.test.service;
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import com.googlecode.aviator.AviatorEvaluator;
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import com.googlecode.aviator.runtime.function.AbstractFunction;
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import com.googlecode.aviator.runtime.function.FunctionUtils;
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import com.googlecode.aviator.runtime.type.AviatorDouble;
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import com.googlecode.aviator.runtime.type.AviatorObject;
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import org.junit.Test;
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import java.beans.Expression;
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import java.util.HashMap;
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import java.util.Map;
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public class testService {
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public static void main(String[] args) {
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// 注册函数
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AviatorEvaluator.addFunction(new AddFunction());
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// 创建参数映射
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Map<String, Object> paramMap = new HashMap<>();
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paramMap.put("a", 5);
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paramMap.put("b", 2);
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// 执行表达式
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Object result = AviatorEvaluator.execute("add(a, b)", paramMap);
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System.out.println("Result: " + result);
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}
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static class AddFunction extends AbstractFunction {
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@Override
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public AviatorObject call(Map<String, Object> env, AviatorObject arg1, AviatorObject arg2) {
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Number left = arg1.numberValue(env);
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Number right = arg2.numberValue(env);
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// 执行数学计算
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double result = (Math.pow(left.doubleValue(), right.doubleValue()) + Math.sqrt(right.doubleValue()) - Math.log(right.doubleValue())) /
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(Math.pow(right.doubleValue(), left.doubleValue()) + Math.log10(left.doubleValue()));
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return new AviatorDouble(result);
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}
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@Override
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public String getName() {
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return "add";
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}
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}
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}
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