DictAspect.java 9.4 KB
package com.skua.config.aspect;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.skua.core.api.vo.Result;
import com.skua.core.aspect.annotation.Dict;
import com.skua.core.constant.CommonConstant;
import com.skua.core.util.ConvertUtils;
import com.skua.modules.system.service.ISysDictService;
import lombok.extern.slf4j.Slf4j;
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.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

import java.lang.reflect.Field;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 字典aop类
 */
@Aspect
@Component
@Slf4j
@Order(1)
public class DictAspect {
    @Autowired
    private ISysDictService dictService;
    // 定义切点Pointcut
    @Pointcut("execution(public * com.skua.modules..*.*Controller.*(..))")
    public void excudeService() {
    }

    @Around("excudeService()")
    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;
    }

    /**
     * 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
     * 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
     * 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
     * 例输入当前返回值的就会多出一个sex_dictText字段
     * {
     *      sex:1,
     *      sex_dictText:"男"
     * }
     * 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
     *  customRender:function (text) {
     *               if(text==1){
     *                 return "男";
     *               }else if(text==2){
     *                 return "女";
     *               }else{
     *                 return text;
     *               }
     *             }
     *             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
     * @param result
     */
    private void parseDictText(Object result) {

        Map<String, Map<String,String>> businessMap = new HashMap<>();
        Map<String,Map<String,String>> dictMap = new HashMap<>();
        if (result instanceof Result) {
            if (((Result) result).getResult() instanceof IPage) {
                List<JSONObject> items = new ArrayList<>();
                for (Object record : ((IPage) ((Result) result).getResult()).getRecords()) {
                    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.getMessage(),e);
                    }
                    JSONObject item = JSONObject.parseObject(json);
                    //update-begin--Author:scott -- Date:20190603 ----for:解决继承实体字段无法翻译问题------
                    //for (Field field : record.getClass().getDeclaredFields()) {
                    for (Field field : ConvertUtils.getAllFields(record)) {
                        //update-end--Author:scott  -- Date:20190603 ----for:解决继承实体字段无法翻译问题------
                        if (field.getAnnotation(Dict.class) != null) {
                            String code = field.getAnnotation(Dict.class).dicCode();
                            String text = field.getAnnotation(Dict.class).dicText();
                            String table = field.getAnnotation(Dict.class).dictTable();
                            String key = String.valueOf(item.get(field.getName()));
                            String textValue = "";
                            //翻译字典值对应的txt
                            if(!org.apache.commons.lang3.StringUtils.isBlank(table)){
                                if (!businessMap.containsKey(table)){
                                    //获取table的集合
                                    Map<String, Map<String,String>> map = dictService.getBusinessMap(code,table,text);
                                    businessMap.putAll(map);
                                }

                                String[] keys = key.split(",");
                                StringBuilder textValueStringBuilder = new StringBuilder();
                                for (String k : keys){
                                    if(businessMap.get(table).get(k) != null) {
                                        textValueStringBuilder.append(",");
                                        textValueStringBuilder.append(businessMap.get(table).get(k));
                                    }
                                }
                                textValue = textValueStringBuilder.toString().replaceFirst(",","");
                            }else{
                                if (!dictMap.containsKey(code)){
                                    Map<String, Map<String,String>> map = dictService.getDictMap(code);
                                    dictMap.putAll(map);
                                }
                                String[] keys = key.split(",");
                                StringBuilder textValueStringBuilder = new StringBuilder();
                                for (String k : keys){
                                    if(dictMap.get(code).get(k) != null) {
                                        textValueStringBuilder.append(",");
                                        textValueStringBuilder.append(dictMap.get(code).get(k));
                                    }
                                }
                                textValue = textValueStringBuilder.toString().replaceFirst(",","");
                            }
                            //翻译字典值对应的txt
//                            String textValue = translateDictValue(code, text, table, key);

                            log.debug(" 字典Val : "+ textValue);
                            log.debug(" __翻译字典字段__ "+field.getName() + CommonConstant.DICT_TEXT_SUFFIX+": "+ textValue);
                            item.put(field.getName() + CommonConstant.DICT_TEXT_SUFFIX, textValue);
                        }
                        //date类型默认转换string格式化日期
                        if (field.getType().getName().equals("java.util.Date")&&field.getAnnotation(JsonFormat.class)==null&&item.get(field.getName())!=null){
                            String pattern = "yyyy-MM-dd HH:mm:ss";
                            if(field.getAnnotation(JsonFormat.class)!=null) {
                                pattern = field.getAnnotation(JsonFormat.class).pattern();
                                if(StringUtils.isEmpty(pattern)) {
                                    pattern = "yyyy-MM-dd HH:mm:ss";
                                }
                            }
                            SimpleDateFormat aDate=new SimpleDateFormat(pattern);
                            item.put(field.getName(), aDate.format(new Date((Long) item.get(field.getName()))));
                        }
                    }
                    items.add(item);
                }
                ((IPage) ((Result) result).getResult()).setRecords(items);
            }

        }
    }

    /**
     *  翻译字典文本
     * @param code
     * @param text
     * @param table
     * @param key
     * @return
     */
    private String translateDictValue(String code, String text, String table, String key) {
        if(ConvertUtils.isEmpty(key)) {
            return null;
        }
        StringBuffer textValue=new StringBuffer();
        String[] keys = key.split(",");
        for (String k : keys) {
            String tmpValue = null;
            log.debug(" 字典 key : "+ k);
            if (k.trim().length() == 0) {
                continue; //跳过循环
            }
            if (!StringUtils.isEmpty(table)){
                tmpValue= dictService.queryTableDictTextByKey(table,text,code,k.trim());
            }else {
                tmpValue = dictService.queryDictTextByKey(code, k.trim());
            }

            if (tmpValue != null) {
                if (!"".equals(textValue.toString())) {
                    textValue.append(",");
                }
                textValue.append(tmpValue);
            }

        }
        return textValue.toString();
    }

}