weaver-hrm-salary/src/com/engine/salary/service/impl/FormulaRunServiceImpl.java

package com.engine.salary.service.impl;

import com.engine.core.impl.Service;
import com.engine.salary.entity.datacollection.DataCollectionEmployee;
import com.engine.salary.entity.salaryformula.ExpressFormula;
import com.engine.salary.entity.salaryformula.po.FormulaVar;
import com.engine.salary.service.FormulaRunService;
import com.ql.util.express.DefaultContext;
import com.ql.util.express.ExpressRunner;
import lombok.extern.slf4j.Slf4j;

import java.util.List;

@Slf4j
public class FormulaRunServiceImpl extends Service implements FormulaRunService {
    @Override
    public Object run(ExpressFormula expressFormula, List<FormulaVar> formulaVars, DataCollectionEmployee simpleEmployee) {

        String formula = expressFormula.getFormula();
        ExpressRunner runner = new ExpressRunner(true, false);
        DefaultContext<String, Object> context = new DefaultContext<String, Object>();
        formulaVars.forEach(v -> {
            context.put(v.getFieldId(), v.getContent());
        });
        Object execute = null;
        try {
            execute = runner.execute(formula, context, null, true, false);
        } catch (Exception e) {
            log.error("公式执行异常", e);
        }
        return execute;
    }
}