java Map转XML

package com.lmx.common.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.lang.reflect.Field;
import java.util.Collection;
import java.util.Map;
import java.util.Set;

/**
* Created by qin on 2016/8/31.
*/
public class XMLUtil {
private static Log logger = LogFactory.getLog(XMLUtil.class);

/**
* Converter Map<Object, Object> instance to xml string. Note: currently,
* we aren't consider more about some collection types, such as array,list,
*
* @param dataMap  the data map
*
* @return the string
*/
public static String converter(Map<Object, Object> dataMap)
{
synchronized (XMLUtil.class)
{
StringBuilder strBuilder = new StringBuilder();
strBuilder.append("<xml>");
strBuilder.append("\n");
Set<Object> objSet = dataMap.keySet();
for (Object key : objSet)
{
if (key == null)
{
continue;
}
//                strBuilder.append("\n");
strBuilder.append("<").append(key.toString()).append(">");
Object value = dataMap.get(key);
strBuilder.append(coverter(value));
strBuilder.append("</").append(key.toString()).append(">\n");
}
strBuilder.append("</xml>");
return strBuilder.toString();
}
}

public static String coverter(Object[] objects) {
StringBuilder strBuilder = new StringBuilder();
for(Object obj:objects) {
strBuilder.append("<item className=").append(obj.getClass().getName()).append(">\n");
strBuilder.append(coverter(obj));
strBuilder.append("</item>\n");
}
return strBuilder.toString();
}

public static String coverter(Collection<?> objects)
{
StringBuilder strBuilder = new StringBuilder();
for(Object obj:objects) {
strBuilder.append("<item className=").append(obj.getClass().getName()).append(">\n");
strBuilder.append(coverter(obj));
strBuilder.append("</item>\n");
}
return strBuilder.toString();
}

/**
* Coverter.
*
* @param object the object
* @return the string
*/
public static String coverter(Object object)
{
if (object instanceof Object[])
{
return coverter((Object[]) object);
}
if (object instanceof Collection)
{
return coverter((Collection<?>) object);
}
StringBuilder strBuilder = new StringBuilder();
if (isObject(object))
{
Class<? extends Object> clz = object.getClass();
Field[] fields = clz.getDeclaredFields();

for (Field field : fields)
{
field.setAccessible(true);
if (field == null)
{
continue;
}
String fieldName = field.getName();
Object value = null;
try
{
value = field.get(object);
}
catch (IllegalArgumentException e)
{
continue;
}
catch (IllegalAccessException e)
{
continue;
}
strBuilder.append("<").append(fieldName)
.append(" className=\"").append(
value.getClass().getName()).append("\">\n");
if (isObject(value))
{
strBuilder.append(coverter(value));
}
else if (value == null)
{
strBuilder.append("null\n");
}
else
{
strBuilder.append(value.toString() + "\n");
}
strBuilder.append("</").append(fieldName).append(">\n");
}
}
else if (object == null)
{
strBuilder.append("null");
}
else
{
strBuilder.append(object.toString());
}
return strBuilder.toString();
}

/**
* Checks if is object.
*
* @param obj the obj
*
* @return true, if is object
*/
private static boolean isObject(Object obj)
{
if (obj == null)
{
return false;
}
if (obj instanceof String)
{
return false;
}
if (obj instanceof Integer)
{
return false;
}
if (obj instanceof Double)
{
return false;
}
if (obj instanceof Float)
{
return false;
}
if (obj instanceof Byte)
{
return false;
}
if (obj instanceof Long)
{
return false;
}
if (obj instanceof Character)
{
return false;
}
if (obj instanceof Short)
{
return false;
}
if (obj instanceof Boolean)
{
return false;
}
return true;
}

}