完善修正xml转json消息的问题。

src/main/java/com/gzzn/omms/msgexchangeapi/service/exchange/ExchangeServiceImpl.java

@@ -13,25 +13,18 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.type.TypeFactory;
 import com.fasterxml.jackson.dataformat.xml.XmlMapper;
 import com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector;
+import com.gzzn.omms.msgexchangeapi.entity.msg.MSG;
 import com.gzzn.omms.msgexchangeapi.exception.ExchangeServiceException;
+import com.gzzn.omms.msgexchangeapi.utils.JsonUtil;
 
 @Service("exchangeService")
 public class ExchangeServiceImpl implements IExchangeService {
 
 	@Override
 	public String xmlstrToJson(String xml) throws ExchangeServiceException {
-		try {
+		MSG msg = xmlstrToObject(xml,MSG.class); //转具体消息
-			Map map;
+		String jsonStr = JsonUtil.getStringWithNoneKey(msg); //转json同时去除null的key
-			ObjectMapper xmlMapper = new XmlMapper();
+		return jsonStr;
-			map = xmlMapper.readValue(xml, Map.class);
-			map.remove("noNamespaceSchemaLocation");
-			
-			ObjectMapper jsonMapper = new ObjectMapper();
-			String json = jsonMapper.writer().withDefaultPrettyPrinter().writeValueAsString(map);
-			return json;
-		} catch (IOException e) {
-			throw new ExchangeServiceException(e.getMessage(),e);
-		}
 	} //end function
 
 	@Override

src/main/java/com/gzzn/omms/msgexchangeapi/utils/JsonUtil.java

@@ -2,6 +2,7 @@ package com.gzzn.omms.msgexchangeapi.utils;
 
 import java.io.IOException;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.core.JsonParseException;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.JsonMappingException;
@@ -22,6 +23,26 @@ public class JsonUtil {
 	}
   } //end function
   
+  /**
+   * 获取json字符串去除值为null的key
+   * @param object
+   * @return json字符串
+   */
+  public static String getStringWithNoneKey(Object object) 
+  {
+	try {
+		ObjectMapper mapper = new ObjectMapper();
+		mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+		
+	    ObjectWriter ow = mapper.writer().withDefaultPrettyPrinter();
+	    java.lang.String jsonStr;
+		jsonStr = ow.writeValueAsString(object);
+	    return jsonStr;
+	} catch (JsonProcessingException e) {
+		throw new RuntimeException(e);
+	}
+  } //end function
+  
   
   public static <T>  T getObject(String str,Class<T> valueType) throws JsonParseException, JsonMappingException, IOException
   {