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  • Page分页对象与Map转换工具类

    该工具类用于分页Page对象转为Map,然后存储到Redis中

    import com.alibaba.fastjson.JSON;
    import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
    
    import java.util.HashMap;
    import java.util.Map;
    
    public class PageToCacheMapUtils<T> {
    
        public static <T> Page<T> cacheMapToPage(Map<String, String> cacheVal, Class<T> clazz) {
            Page<T> page = new Page<>();
            page.setCurrent(Long.valueOf(cacheVal.get("current")));
            page.setSize(Long.valueOf(cacheVal.get("size")));
            page.setTotal(Long.valueOf(cacheVal.get("total")));
            page.setRecords(JSON.parseArray(cacheVal.get("records"), clazz));
            return page;
        }
    
        public static <T> Map<String, String> pageToCacheMap(Page<T> pageData) {
            Map<String, String> cacheVal = new HashMap<>();
            cacheVal.put("current", String.valueOf(pageData.getCurrent()));
            cacheVal.put("size", String.valueOf(pageData.getSize()));
            cacheVal.put("total", String.valueOf(pageData.getTotal()));
            cacheVal.put("records", JSON.toJSONString(pageData.getRecords()));
            return cacheVal;
        }
    }
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  • 原文地址:https://www.cnblogs.com/use-D/p/13541692.html
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