字典映射简单方法

 

 

通过反射简单设置字典，不用每个需要用字典的地方都重新写一遍

 

/**
 * @param dictType  字典type
 * @param dictField 字典type对应字段名
 * @param dictFieldName  需要填充中文的字段名
 * @param <T>
 */
<T> void setDictName(T obj, String dictType, String dictField,String dictFieldName);

 

/**
 * @param dictType  字典type
 * @param dictField 字典type对应字段名
 * @param dictFieldName  需要填充中文的字段名
 * @param <T>
 */
@Override
public <T> void setDictName(T obj, String dictType, String dictField,String dictFieldName) {
    try{
        if (obj != null){
            LambdaQueryWrapper<SysDictData> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(SysDictData::getDictType,dictType);
            queryWrapper.eq(SysDictData::getStatus,"0");
            Field field = obj.getClass().getDeclaredField(dictField);
            Field fieldName = obj.getClass().getDeclaredField(dictFieldName);
            fieldName.setAccessible(true);
            field.setAccessible(true);
            String fieldValue = field.get(obj).toString();
            queryWrapper.eq(SysDictData::getDictValue,fieldValue);
            List<SysDictData> sysDictData = this.selectDictDataByType(dictType);
            SysDictData one = sysDictData.stream()
                .filter(data -> "0".equals(data.getStatus()) && fieldValue.equals(data.getDictValue()))
                .findFirst()
                .orElse(null);
            if (one != null){
                fieldName.set(obj,one.getDictLabel());
            }
        }
    }catch (Exception e){
        log.error("字典映射错误，请联系管理员");
        throw new RuntimeException("字典映射错误，请联系管理员");
    }

}

 

代码结合到业务表的 大概意思差不多

 

下面是list版本的

 

/**
 *
 * @param list 数据list
 * @param dictType  字典type
 * @param dictField 字典type对应字段名
 * @param dictFieldName  需要填充中文的字段名
 * @param <T>
 */
@Override
public <T> void setDictNameByList(List<T> list, String dictType, String dictField,String dictFieldName) {
    try{
        if (!CollectionUtils.isEmpty(list)){
            List<SysDictData> sysDictData = this.selectDictDataByType(dictType);
            List<SysDictData> dicts = sysDictData.stream().filter(data->"0".equals(data.getStatus())).collect(Collectors.toList());
            Map<String, SysDictData> collect = dicts.stream().collect(Collectors.toMap(SysDictData::getDictValue, e -> e));
            for (T t : list) {
                Field field = t.getClass().getDeclaredField(dictField);
                Field fieldName = t.getClass().getDeclaredField(dictFieldName);
                fieldName.setAccessible(true);
                field.setAccessible(true);
                if (collect.containsKey(field.get(t).toString())){
                    fieldName.set(t,collect.get(field.get(t).toString()).getDictLabel());
                }
            }
        }
    } catch (Exception e){
        log.error("字典映射错误，请联系管理员");
        throw new RuntimeException(e.getMessage());
    }
}