【SpringBoot】24、SpringBoot中实现数据字典

时间:2024-10-14 08:11:10
import com.alibaba.fastjson.JSONObject; import com.fasterxml.jackson.annotation.JsonFormat; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import com.zyxx.common.annotation.Dict; import com.zyxx.common.utils.LayTableResult; import com.zyxx.common.utils.ObjConvertUtils; import com.zyxx.sbm.entity.SysDictDetail; import com.zyxx.sbm.service.SysDictService; import lombok.extern.slf4j.Slf4j; import org.apache.commons.lang3.StringUtils; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Pointcut; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import java.lang.reflect.Field; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; /** * 数据字典切面 * * @author Tellsea * @date 2020/6/23 */ @Aspect @Component @Slf4j public class DictAspect { /** * 字典后缀 */ private static String DICT_TEXT_SUFFIX = "Text"; @Autowired private SysDictService sysDictService; /** * 切点,切入 controller 包下面的所有方法 */ @Pointcut("execution( * .*.controller.*.*(..))") public void dict() { } @Around("dict()") public Object doAround(ProceedingJoinPoint pjp) throws Throwable { long time1 = System.currentTimeMillis(); Object result = pjp.proceed(); long time2 = System.currentTimeMillis(); log.debug("获取JSON数据 耗时:" + (time2 - time1) + "ms"); long start = System.currentTimeMillis(); this.parseDictText(result); long end = System.currentTimeMillis(); log.debug("解析注入JSON数据 耗时" + (end - start) + "ms"); return result; } private void parseDictText(Object result) { if (result instanceof LayTableResult) { List<JSONObject> items = new ArrayList<>(); LayTableResult rr = (LayTableResult) result; if (rr.getCount() > 0) { List<?> list = (List<?>) rr.getData(); for (Object record : list) { ObjectMapper mapper = new ObjectMapper(); String json = "{}"; try { // 解决@JsonFormat注解解析不了的问题详见SysAnnouncement类的@JsonFormat json = mapper.writeValueAsString(record); } catch (JsonProcessingException e) { log.error("Json解析失败:" + e); } JSONObject item = JSONObject.parseObject(json); // 解决继承实体字段无法翻译问题 for (Field field : ObjConvertUtils.getAllFields(record)) { //解决继承实体字段无法翻译问题 // 如果该属性上面有@Dict注解,则进行翻译 if (field.getAnnotation(Dict.class) != null) { // 拿到注解的dictDataSource属性的值 String dictType = field.getAnnotation(Dict.class).dictCode(); // 拿到注解的dictText属性的值 String text = field.getAnnotation(Dict.class).dictText(); //获取当前带翻译的值 String key = String.valueOf(item.get(field.getName())); //翻译字典值对应的text值 String textValue = translateDictValue(dictType, key); // DICT_TEXT_SUFFIX的值为,是默认值: // public static final String DICT_TEXT_SUFFIX = "_dictText"; log.debug("字典Val: " + textValue); log.debug("翻译字典字段:" + field.getName() + DICT_TEXT_SUFFIX + ": " + textValue); //如果给了文本名 if (!StringUtils.isBlank(text)) { item.put(text, textValue); } else { // 走默认策略 item.put(field.getName() + DICT_TEXT_SUFFIX, textValue); } } // date类型默认转换string格式化日期 if ("".equals(field.getType().getName()) && field.getAnnotation(JsonFormat.class) == null && item.get(field.getName()) != null) { SimpleDateFormat aDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); item.put(field.getName(), aDate.format(new Date((Long) item.get(field.getName())))); } } items.add(item); } rr.setData(items); } } } /** * 翻译字典文本 * * @param dictType * @param key * @return */ private String translateDictValue(String dictType, String key) { if (ObjConvertUtils.isEmpty(key)) { return null; } StringBuffer textValue = new StringBuffer(); String[] keys = key.split(","); for (String k : keys) { if (k.trim().length() == 0) { continue; } /** * 根据 dictCode 和 code 查询字典值,例如:dictCode:sex,code:1,返回:男 * 应该放在redis,提高响应速度 */ SysDictDetail dictData = sysDictService.getDictDataByTypeAndValue(dictType, key); if (dictData.getName() != null) { if (!"".equals(textValue.toString())) { textValue.append(","); } textValue.append(dictData.getName()); } log.info("数据字典翻译: 字典类型:{},当前翻译值:{},翻译结果:{}", dictType, k.trim(), dictData.getName()); } return textValue.toString(); } }