添加excel工具类

common-client/src/main/java/com/zq/common/utils/EasyExcelUtil.java

+package com.zq.common.utils;
+
+import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.context.AnalysisContext;
+import com.alibaba.excel.event.AnalysisEventListener;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+public class EasyExcelUtil {
+
+    public static List<Map<String, Object>> read(File file){
+        try {
+            return read(new FileInputStream(file));
+        } catch (FileNotFoundException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static List<Map<String, Object>> read(InputStream is){
+        List<Map<String, Object>> list = new LinkedList<>();
+        EasyExcel.read(is, new AnalysisEventListener<Map<Integer, Object>>() {
+            private Map<Integer, String> headMap;
+
+            @Override
+            public void invokeHeadMap(Map<Integer, String> headMap, AnalysisContext context) {
+                this.headMap = headMap;
+            }
+
+            @Override
+            public void invoke(Map<Integer, Object> valueMap, AnalysisContext analysisContext) {
+                LinkedHashMap map = new LinkedHashMap(headMap.size());
+                for(int i=0; i<headMap.size(); i++){
+                    map.put(headMap.get(i), valueMap.get(i));
+                }
+                list.add(map);
+            }
+
+            @Override
+            public void doAfterAllAnalysed(AnalysisContext analysisContext) {}
+        }).sheet().doReadSync();
+        return list;
+    }
+}
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