package com.whyc.service;
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import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import com.whyc.mapper.UpsPowerSignalMapper;
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import com.whyc.pojo.UpsPowerSignal;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.util.List;
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@Service
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public class UpsPowerSignalService {
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@Resource
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private UpsPowerSignalMapper mapper;
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public void add(UpsPowerSignal signal) {
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mapper.insert(signal);
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}
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public List<UpsPowerSignal> getList() {
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return mapper.selectList(null);
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}
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public void update(UpsPowerSignal signal) {
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UpdateWrapper<UpsPowerSignal> update = Wrappers.update();
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update.eq("power_device_id",signal.getPowerDeviceId());
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mapper.update(signal,update);
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}
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public static void main(String[] args) {
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float valueFloat;
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try {
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valueFloat = Float.parseFloat("34.7");
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} catch (NumberFormatException e) {
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//如果没有获取到点位的测量值,为NULL或者NAN,赋值0,避免报错影响程序执行
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valueFloat = 0f;
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}
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System.out.println(valueFloat);
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}
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}
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