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                ### 功能描述: > online導出數據 可以通過配置 java增強**修改導出的數據**,e.g.數據庫存的是編碼,導出excel需要展示具體的名稱,這個時候就可以使用導出增強。 ### 定義java類: ~~~ import lombok.extern.slf4j.Slf4j; import org.jeecg.modules.online.cgform.enhance.CgformEnhanceJavaListInter; import org.jeecg.modules.online.config.exception.BusinessException; import org.springframework.stereotype.Component; import java.util.List; import java.util.Map; /** * Excel導出增強簡單示例-數據轉換 */ @Slf4j @Component("cgformEnhanceExportDemo") public class CgformEnhanceExportDemo implements CgformEnhanceJavaListInter { @Override public void execute(String tableName, List<Map<String, Object>> data) throws BusinessException { for (Map<String, Object> map : data) { // 獲取項目名稱字段的值 Object projectName = map.get("project_name"); if(projectName!=null){ // 滿足一定的條件 將值替換成自定義的格式 if(projectName.toString().equalsIgnoreCase("abc")){ map.put("project_name", "這是字母abc"); }else if(projectName.toString().equalsIgnoreCase("123")){ map.put("project_name", "這是數字123"); } } } } } ~~~ >[info]注:java增強-導出,需要實現的接口是:CgformEnhanceJavaListInter與常規的JAVA增強不同。 ### 增強配置 ![](https://img.kancloud.cn/4b/cb/4bcbd0fafb540312bca3317be026e79a_787x356.png) ### 效果展示: - 訪問online表數據 ![](https://img.kancloud.cn/33/46/3346e3a12dd261d628bbd978444531d0_1608x357.png) - 導出excel數據顯示如下: ![](https://img.kancloud.cn/26/e3/26e3cb9e866ec9afc479fd86db9c7fd5_552x335.png) ---- ### 導出增強總結: - 1.java類實現接口`CgformEnhanceJavaListInter ` - 2.重寫方法`execute`
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