服务启动时执行方法把数据预加载到类里等待调用

@Service
@Slf4j
public class RiskLevelService extends baseService {

    @Resource(name = "caseReasonMapper")
    private CaseReasonMapper caseReasonMapper;

    public final static String REASON_CONTEXT_PRE = "ID";

    
    public static final evaluationContext reasonContext = new StandardevaluationContext();

    
    @PostConstruct
    public void initReasonContext() {
        log.info("正在初始化案由环境...");
        List caseReasons = this.caseReasonMapper.selectAll();
        caseReasons.forEach(caseReason -> reasonContext.setVariable(REASON_CONTEXT_PRE + caseReason.getId(), caseReason.getName()));
    }
   //将数据取出来----lookupVariable
       public String getReasonName(String reasonId) {
        final Object reasonName = reasonContext.lookupVariable(REASON_CONTEXT_PRE + reasonId);
        if (ObjectUtil.isNull(reasonName)) {
            final String name = this.caseReasonMapper.findNameById(reasonId);
            if (StrUtil.isNotBlank(name)) {
                reasonContext.setVariable(reasonId, name);
                return name;
            }
        }
        return (String) reasonName;
    }

点击查看详解说明
@PostConstruct:.