数据中心视图excel导出多值字段处理

o2server/x_query_assemble_surface/src/main/java/com/x/query/assemble/surface/jaxrs/view/BaseAction.java

@@ -2,13 +2,10 @@ package com.x.query.assemble.surface.jaxrs.view;
 
 import java.io.ByteArrayOutputStream;
 import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
+import java.util.*;
 import java.util.concurrent.ExecutorService;
 
+import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.BooleanUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.math.NumberUtils;
@@ -236,6 +233,8 @@ abstract class BaseAction extends StandardJaxrsAction {
 		} else if (object instanceof Date) {
 			SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 			str = formatter.format(object);
+		} else if (object instanceof List){
+			str = StringUtils.join((List)object, ",");
 		} else {
 			str = object.toString();
 		}