转换cmoutmsg消息的xml 去除多余的空标签

src/main/java/com/gzzn/omms/msgexchangeapi/entity/msg/MSG.java

@@ -8,6 +8,8 @@
 
 package com.gzzn.omms.msgexchangeapi.entity.msg;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
+import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
 
 import java.io.Serializable;
 import java.util.ArrayList;
@@ -184,6 +186,7 @@ public class MSG
     implements Serializable
 {
 
+
     private final static long serialVersionUID = 1L;
     @XmlElement(name = "META", required = true)
     @JsonProperty("META")