表结构修改

yzg-util-base/src/main/java/com/yanzuoguang/util/helper/JsonHelper.java

@@ -2,6 +2,7 @@ package com.yanzuoguang.util.helper;
 
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.TypeReference;
+import com.alibaba.fastjson.serializer.SerializerFeature;
 
 /**
  * JSON序列化的处理
@@ -9,6 +10,10 @@ import com.alibaba.fastjson.TypeReference;
  * @author 颜佐光
  */
 public class JsonHelper {
+    static {
+        // 全局配置关闭Fastjson循环引用，避免出现$ref
+        JSON.DEFAULT_GENERATE_FEATURE |= SerializerFeature.DisableCircularReferenceDetect.getMask();
+    }
 
     /**
      * JSON对象开始标记

yzg-util-base/src/test/java/helper/TestJson.java

+package helper;
+
+import com.yanzuoguang.util.helper.JsonHelper;
+import com.yanzuoguang.util.vo.MapRow;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestJson {
+
+    @Test
+    public void test() throws Exception {
+        MapRow map1 = new MapRow();
+        map1.put("m1", "a");
+        MapRow map = new MapRow();
+        map.put("k1", map1);
+        map.put("k2", map1);
+        String json = JsonHelper.serialize(map);
+        Assert.assertEquals(json, "{\"k1\":{\"m1\":\"a\"},\"k2\":{\"m1\":\"a\"}}");
+    }
+}