Question

online 列表查询数据 可以通过配置 java 增强，修改最终需要展示的数据，只有 开始 事件有效

1.访问online表数据

2.增强配置

3.编写java增强类

注意：java增强导出，需要实现的接口是：CgformEnhanceJavaListInter与常规的JAVA增强不同。

import org.jeecg.modules.online.cgform.enhance.CgformEnhanceJavaListInter;
import org.jeecg.modules.online.config.exception.BusinessException;
import org.springframework.stereotype.Component;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

@Component("cgformEnhanceQueryDemo")
public class CgformEnhanceQueryDemo implements CgformEnhanceJavaListInter {

   @Override
   public void execute(String tableName, List<Map<String, Object>> data) throws BusinessException {
      List<VirtualDict> dict = virtualDictData();
      for (Map<String, Object> map : data) {
         Object db = map.get("province");
         if(db==null){
            continue;
         }
         String text = dict.stream()
               .filter(p -> db.toString().equals(p.getValue()))
               .map(VirtualDict::getText)
               .findAny()
               .orElse("");
         map.put("province",text);
      }
   }

   /**
    * 模拟字典数据
    * @return
    */
   private List<VirtualDict> virtualDictData(){
      List<VirtualDict> dict = new ArrayList<VirtualDict>();
      dict.add(new VirtualDict("bj","北京"));
      dict.add(new VirtualDict("sd","山东"));
      dict.add(new VirtualDict("ah","安徽"));
      return dict;
   }

   class VirtualDict {
      String value;
      String text;

      public VirtualDict(String value,String text){
         this.value = value;
         this.text = text;
      }

      public String getValue(){
         return value;
      }


      public String getText(){
         return text;
      }
   }
}

4.再次访问online表数据