MapListCamelParser 返回Map数据的解析处理

Author: xlorne

src/main/java/com/codingapi/simplemybatis/utils/MapCamelUtils.java

@@ -17,6 +17,7 @@ public static void camelMap(Map<String, Object> item) {
             String newKey = StringCharacterUtils.underlineToCamel(key);
             if (!newKey.equals(key)) {
                 item.put(newKey, item.get(key));
+                item.remove(key);
             }
         }
     }

src/main/java/com/codingapi/simplemybatis/utils/MapListCamelParser.java

@@ -0,0 +1,61 @@
+package com.codingapi.simplemybatis.utils;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * @author lorne
+ * @date 2020/4/28
+ * @description
+ */
+public class MapListCamelParser {
+
+    private List<Map<String,Object>> list;
+
+    private Set<String> keys;
+
+    public MapListCamelParser(List<Map<String, Object>> list) {
+        this.keys = new HashSet<>();
+        this.list = list;
+
+        if(hasData()){
+            camelMap();
+        }
+    }
+
+    private boolean hasData(){
+        return list!=null&&list.size()>0;
+    }
+
+
+    private void camelMap(){
+        this.list = list.stream().map(item->{
+            MapCamelUtils.camelMap(item);
+            keys.addAll(item.keySet());
+            return item;
+        }).collect(Collectors.toList());
+    }
+
+    public List<Map<String,Object>> parser(){
+        if(!hasData()) {
+            return null;
+        }
+        return list.stream().map(item -> {
+            pushKeys(item);
+            return item;
+        }).collect(Collectors.toList());
+    }
+
+    public List<Map<String, Object>> getList() {
+        return list;
+    }
+
+    private void pushKeys(Map<String,Object> item){
+        for(String key:keys){
+            if(!item.containsKey(key)){
+                item.put(key,null);
+            }
+        }
+    }
+
+}