package com.se.system.service;
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import com.se.system.mapper.IndexMapper;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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@Component
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@SuppressWarnings("ALL")
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public class IndexService {
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@Resource
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IndexMapper indexMapper;
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public static SimpleDateFormat YYYY_MM_DD_HH_MM_SS = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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public int newUserCount(int day) {
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Calendar calendar = Calendar.getInstance();
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calendar.add(Calendar.DAY_OF_MONTH, -day);
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String createTime = YYYY_MM_DD_HH_MM_SS.format(calendar.getTime());
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return indexMapper.newUserCount(createTime);
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}
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}
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