package org.jeecg.common.aspect;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.alibaba.fastjson.parser.Feature;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import lombok.extern.slf4j.Slf4j;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.annotation.Around;
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import org.aspectj.lang.annotation.Aspect;
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import org.aspectj.lang.annotation.Pointcut;
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import org.jeecg.common.api.CommonAPI;
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import org.jeecg.common.api.vo.Result;
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import org.jeecg.common.aspect.annotation.Dict;
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import org.jeecg.common.constant.CommonConstant;
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import org.jeecg.common.system.vo.DictModel;
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import org.jeecg.common.util.oConvertUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Lazy;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.stereotype.Component;
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import org.springframework.util.StringUtils;
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import java.lang.reflect.Field;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.Collectors;
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/**
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* @Description: 字典aop类
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* @Author: dangzhenghui
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* @Date: 2019-3-17 21:50
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* @Version: 1.0
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*/
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@Aspect
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@Component
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@Slf4j
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public class DictAspect {
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@Lazy
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@Autowired
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private CommonAPI commonApi;
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@Autowired
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public RedisTemplate redisTemplate;
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@Autowired
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private ObjectMapper objectMapper;
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private static final String JAVA_UTIL_DATE = "java.util.Date";
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/**
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* 定义切点Pointcut
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*/
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@Pointcut("execution(public * org.jeecg.modules.base.*Controller.*(..)) || @annotation(org.jeecg.common.aspect.annotation.AutoDict)")
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public void excudeService() {
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}
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@Around("excudeService()")
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public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
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long time1=System.currentTimeMillis();
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Object result = pjp.proceed();
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long time2=System.currentTimeMillis();
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log.debug("获取JSON数据 耗时："+(time2-time1)+"ms");
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long start=System.currentTimeMillis();
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result=this.parseDictText(result);
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long end=System.currentTimeMillis();
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log.debug("注入字典到JSON数据 耗时"+(end-start)+"ms");
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return result;
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}
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/**
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* 本方法针对返回对象为Result 的IPage的分页列表数据进行动态字典注入
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* 字典注入实现 通过对实体类添加注解@dict 来标识需要的字典内容,字典分为单字典code即可 ，table字典 code table text配合使用与原来jeecg的用法相同
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* 示例为SysUser 字段为sex 添加了注解@Dict(dicCode = "sex") 会在字典服务立马查出来对应的text 然后在请求list的时候将这个字典text，已字段名称加_dictText形式返回到前端
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* 例输入当前返回值的就会多出一个sex_dictText字段
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* {
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* sex:1,
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* sex_dictText:"男"
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* }
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* 前端直接取值sext_dictText在table里面无需再进行前端的字典转换了
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* customRender:function (text) {
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* if(text==1){
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* return "男";
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* }else if(text==2){
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* return "女";
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* }else{
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* return text;
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* }
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* }
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* 目前vue是这么进行字典渲染到table上的多了就很麻烦了 这个直接在服务端渲染完成前端可以直接用
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* @param result
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*/
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private Object parseDictText(Object result) {
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if (result instanceof Result) {
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if (((Result) result).getResult() instanceof IPage) {
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List<JSONObject> items = new ArrayList<>();
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//step.1 筛选出加了 Dict 注解的字段列表
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List<Field> dictFieldList = new ArrayList<>();
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// 字典数据列表， key = 字典code，value=数据列表
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Map<String, List<String>> dataListMap = new HashMap<>(5);
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//取出结果集
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List<Object> records=((IPage) ((Result) result).getResult()).getRecords();
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//update-begin--Author:zyf -- Date:20220606 ----for：【VUEN-1230】 判断是否含有字典注解,没有注解返回-----
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Boolean hasDict= checkHasDict(records);
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if(!hasDict){
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return result;
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}
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log.debug(" __ 进入字典翻译切面 DictAspect —— " );
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//update-end--Author:zyf -- Date:20220606 ----for：【VUEN-1230】 判断是否含有字典注解,没有注解返回-----
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for (Object record : records) {
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String json="{}";
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try {
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//update-begin--Author:zyf -- Date:20220531 ----for：【issues/#3629】 DictAspect Jackson序列化报错-----
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//解决@JsonFormat注解解析不了的问题详见SysAnnouncement类的@JsonFormat
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json = objectMapper.writeValueAsString(record);
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//update-end--Author:zyf -- Date:20220531 ----for：【issues/#3629】 DictAspect Jackson序列化报错-----
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} catch (JsonProcessingException e) {
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log.error("json解析失败"+e.getMessage(),e);
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}
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//update-begin--Author:scott -- Date:20211223 ----for：【issues/3303】restcontroller返回json数据后key顺序错乱 -----
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JSONObject item = JSONObject.parseObject(json, Feature.OrderedField);
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//update-end--Author:scott -- Date:20211223 ----for：【issues/3303】restcontroller返回json数据后key顺序错乱 -----
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//update-begin--Author:scott -- Date:20190603 ----for：解决继承实体字段无法翻译问题------
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//for (Field field : record.getClass().getDeclaredFields()) {
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// 遍历所有字段，把字典Code取出来，放到 map 里
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for (Field field : oConvertUtils.getAllFields(record)) {
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String value = item.getString(field.getName());
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if (oConvertUtils.isEmpty(value)) {
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continue;
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}
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//update-end--Author:scott -- Date:20190603 ----for：解决继承实体字段无法翻译问题------
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if (field.getAnnotation(Dict.class) != null) {
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if (!dictFieldList.contains(field)) {
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dictFieldList.add(field);
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}
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String code = field.getAnnotation(Dict.class).dicCode();
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String text = field.getAnnotation(Dict.class).dicText();
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String table = field.getAnnotation(Dict.class).dictTable();
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List<String> dataList;
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String dictCode = code;
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if (!StringUtils.isEmpty(table)) {
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dictCode = String.format("%s,%s,%s", table, text, code);
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}
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dataList = dataListMap.computeIfAbsent(dictCode, k -> new ArrayList<>());
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this.listAddAllDeduplicate(dataList, Arrays.asList(value.split(",")));
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}
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//date类型默认转换string格式化日期
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//update-begin--Author:zyf -- Date:20220531 ----for：【issues/#3629】 DictAspect Jackson序列化报错-----
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//if (JAVA_UTIL_DATE.equals(field.getType().getName())&&field.getAnnotation(JsonFormat.class)==null&&item.get(field.getName())!=null){
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//SimpleDateFormat aDate=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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// item.put(field.getName(), aDate.format(new Date((Long) item.get(field.getName()))));
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//}
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//update-end--Author:zyf -- Date:20220531 ----for：【issues/#3629】 DictAspect Jackson序列化报错-----
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}
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items.add(item);
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}
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//step.2 调用翻译方法，一次性翻译
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Map<String, List<DictModel>> translText = this.translateAllDict(dataListMap);
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//step.3 将翻译结果填充到返回结果里
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for (JSONObject record : items) {
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for (Field field : dictFieldList) {
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String code = field.getAnnotation(Dict.class).dicCode();
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String text = field.getAnnotation(Dict.class).dicText();
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String table = field.getAnnotation(Dict.class).dictTable();
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String fieldDictCode = code;
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if (!StringUtils.isEmpty(table)) {
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fieldDictCode = String.format("%s,%s,%s", table, text, code);
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}
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String value = record.getString(field.getName());
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if (oConvertUtils.isNotEmpty(value)) {
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List<DictModel> dictModels = translText.get(fieldDictCode);
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if(dictModels==null || dictModels.size()==0){
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continue;
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}
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String textValue = this.translDictText(dictModels, value);
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log.debug(" 字典Val : " + textValue);
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log.debug(" __翻译字典字段__ " + field.getName() + CommonConstant.DICT_TEXT_SUFFIX + "： " + textValue);
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// TODO-sun 测试输出，待删
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log.debug(" ---- dictCode: " + fieldDictCode);
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log.debug(" ---- value: " + value);
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log.debug(" ----- text: " + textValue);
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log.debug(" ---- dictModels: " + JSON.toJSONString(dictModels));
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record.put(field.getName() + CommonConstant.DICT_TEXT_SUFFIX, textValue);
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}
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}
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}
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((IPage) ((Result) result).getResult()).setRecords(items);
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}
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}
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return result;
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}
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/**
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* list 去重添加
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*/
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private void listAddAllDeduplicate(List<String> dataList, List<String> addList) {
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// 筛选出dataList中没有的数据
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List<String> filterList = addList.stream().filter(i -> !dataList.contains(i)).collect(Collectors.toList());
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dataList.addAll(filterList);
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}
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/**
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* 一次性把所有的字典都翻译了
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* 1. 所有的普通数据字典的所有数据只执行一次SQL
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* 2. 表字典相同的所有数据只执行一次SQL
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* @param dataListMap
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* @return
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*/
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private Map<String, List<DictModel>> translateAllDict(Map<String, List<String>> dataListMap) {
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// 翻译后的字典文本，key=dictCode
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Map<String, List<DictModel>> translText = new HashMap<>(5);
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// 需要翻译的数据（有些可以从redis缓存中获取，就不走数据库查询）
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List<String> needTranslData = new ArrayList<>();
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//step.1 先通过redis中获取缓存字典数据
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for (String dictCode : dataListMap.keySet()) {
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List<String> dataList = dataListMap.get(dictCode);
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if (dataList.size() == 0) {
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continue;
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}
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// 表字典需要翻译的数据
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List<String> needTranslDataTable = new ArrayList<>();
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for (String s : dataList) {
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String data = s.trim();
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if (data.length() == 0) {
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continue; //跳过循环
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}
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if (dictCode.contains(",")) {
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String keyString = String.format("sys:cache:dictTable::SimpleKey [%s,%s]", dictCode, data);
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if (redisTemplate.hasKey(keyString)) {
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try {
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String text = oConvertUtils.getString(redisTemplate.opsForValue().get(keyString));
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List<DictModel> list = translText.computeIfAbsent(dictCode, k -> new ArrayList<>());
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list.add(new DictModel(data, text));
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} catch (Exception e) {
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log.warn(e.getMessage());
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}
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} else if (!needTranslDataTable.contains(data)) {
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// 去重添加
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needTranslDataTable.add(data);
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}
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} else {
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String keyString = String.format("sys:cache:dict::%s:%s", dictCode, data);
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if (redisTemplate.hasKey(keyString)) {
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try {
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String text = oConvertUtils.getString(redisTemplate.opsForValue().get(keyString));
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List<DictModel> list = translText.computeIfAbsent(dictCode, k -> new ArrayList<>());
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list.add(new DictModel(data, text));
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} catch (Exception e) {
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log.warn(e.getMessage());
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}
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} else if (!needTranslData.contains(data)) {
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// 去重添加
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needTranslData.add(data);
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}
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}
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}
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//step.2 调用数据库翻译表字典
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if (needTranslDataTable.size() > 0) {
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String[] arr = dictCode.split(",");
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String table = arr[0], text = arr[1], code = arr[2];
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String values = String.join(",", needTranslDataTable);
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log.debug("translateDictFromTableByKeys.dictCode:" + dictCode);
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log.debug("translateDictFromTableByKeys.values:" + values);
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List<DictModel> texts = commonApi.translateDictFromTableByKeys(table, text, code, values);
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log.debug("translateDictFromTableByKeys.result:" + texts);
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List<DictModel> list = translText.computeIfAbsent(dictCode, k -> new ArrayList<>());
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list.addAll(texts);
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// 做 redis 缓存
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for (DictModel dict : texts) {
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String redisKey = String.format("sys:cache:dictTable::SimpleKey [%s,%s]", dictCode, dict.getValue());
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try {
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// update-begin-author:taoyan date:20211012 for: 字典表翻译注解缓存未更新 issues/3061
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// 保留5分钟
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redisTemplate.opsForValue().set(redisKey, dict.getText(), 300, TimeUnit.SECONDS);
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// update-end-author:taoyan date:20211012 for: 字典表翻译注解缓存未更新 issues/3061
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} catch (Exception e) {
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log.warn(e.getMessage(), e);
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}
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}
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}
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}
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//step.3 调用数据库进行翻译普通字典
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if (needTranslData.size() > 0) {
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List<String> dictCodeList = Arrays.asList(dataListMap.keySet().toArray(new String[]{}));
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// 将不包含逗号的字典code筛选出来，因为带逗号的是表字典，而不是普通的数据字典
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List<String> filterDictCodes = dictCodeList.stream().filter(key -> !key.contains(",")).collect(Collectors.toList());
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String dictCodes = String.join(",", filterDictCodes);
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String values = String.join(",", needTranslData);
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log.debug("translateManyDict.dictCodes:" + dictCodes);
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log.debug("translateManyDict.values:" + values);
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Map<String, List<DictModel>> manyDict = commonApi.translateManyDict(dictCodes, values);
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log.debug("translateManyDict.result:" + manyDict);
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for (String dictCode : manyDict.keySet()) {
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List<DictModel> list = translText.computeIfAbsent(dictCode, k -> new ArrayList<>());
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List<DictModel> newList = manyDict.get(dictCode);
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list.addAll(newList);
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// 做 redis 缓存
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for (DictModel dict : newList) {
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String redisKey = String.format("sys:cache:dict::%s:%s", dictCode, dict.getValue());
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try {
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redisTemplate.opsForValue().set(redisKey, dict.getText());
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} catch (Exception e) {
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log.warn(e.getMessage(), e);
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}
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}
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}
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}
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return translText;
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}
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/**
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* 字典值替换文本
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*
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* @param dictModels
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* @param values
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* @return
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*/
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private String translDictText(List<DictModel> dictModels, String values) {
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List<String> result = new ArrayList<>();
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// 允许多个逗号分隔，允许传数组对象
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String[] splitVal = values.split(",");
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for (String val : splitVal) {
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String dictText = val;
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for (DictModel dict : dictModels) {
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if (val.equals(dict.getValue())) {
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dictText = dict.getText();
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break;
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}
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}
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result.add(dictText);
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}
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return String.join(",", result);
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}
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/**
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* 翻译字典文本
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* @param code
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* @param text
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* @param table
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* @param key
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* @return
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*/
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@Deprecated
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private String translateDictValue(String code, String text, String table, String key) {
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if(oConvertUtils.isEmpty(key)) {
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return null;
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}
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StringBuffer textValue=new StringBuffer();
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String[] keys = key.split(",");
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for (String k : keys) {
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String tmpValue = null;
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log.debug(" 字典 key : "+ k);
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if (k.trim().length() == 0) {
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continue; //跳过循环
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}
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//update-begin--Author:scott -- Date:20210531 ----for： !56 优化微服务应用下存在表字段需要字典翻译时加载缓慢问题-----
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if (!StringUtils.isEmpty(table)){
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log.debug("--DictAspect------dicTable="+ table+" ,dicText= "+text+" ,dicCode="+code);
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String keyString = String.format("sys:cache:dictTable::SimpleKey [%s,%s,%s,%s]",table,text,code,k.trim());
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if (redisTemplate.hasKey(keyString)){
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try {
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tmpValue = oConvertUtils.getString(redisTemplate.opsForValue().get(keyString));
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} catch (Exception e) {
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log.warn(e.getMessage());
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}
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}else {
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tmpValue= commonApi.translateDictFromTable(table,text,code,k.trim());
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}
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}else {
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String keyString = String.format("sys:cache:dict::%s:%s",code,k.trim());
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if (redisTemplate.hasKey(keyString)){
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try {
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tmpValue = oConvertUtils.getString(redisTemplate.opsForValue().get(keyString));
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} catch (Exception e) {
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log.warn(e.getMessage());
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}
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}else {
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tmpValue = commonApi.translateDict(code, k.trim());
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}
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}
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//update-end--Author:scott -- Date:20210531 ----for： !56 优化微服务应用下存在表字段需要字典翻译时加载缓慢问题-----
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if (tmpValue != null) {
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if (!"".equals(textValue.toString())) {
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textValue.append(",");
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}
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textValue.append(tmpValue);
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}
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}
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return textValue.toString();
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}
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/**
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* 检测返回结果集中是否包含Dict注解
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* @param records
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* @return
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*/
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private Boolean checkHasDict(List<Object> records){
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if(oConvertUtils.isNotEmpty(records) && records.size()>0){
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for (Field field : oConvertUtils.getAllFields(records.get(0))) {
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if (oConvertUtils.isNotEmpty(field.getAnnotation(Dict.class))) {
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return true;
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}
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}
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}
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return false;
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}
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}
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