JAVA实现map转成XML格式

柔光的暖阳◎ 2022-05-16 13:40 487阅读 0赞

# JAVA实现map集合转成XML格式 #

例如：

### 代码块 ###

import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    import java.util.Map.Entry;
    
    import org.dom4j.Document;
    import org.dom4j.DocumentException;
    import org.dom4j.DocumentHelper;
    import org.dom4j.Element;
    import cn.sdk.util.StringUtil;
    
    public class XmlUtil {
         private static final String PREFIX_XML = "<xml>";
    private static final String SUFFIX_XML = "</xml>";
    
    private static final String PREFIX_CDATA = "<![CDATA[";
    
    private static final String SUFFIX_CDATA = "]]>";
    
    /**
     * 转化成xml, 单层无嵌套
     * @param map
     * @param isAddCDATA
     * @return
     */
    public static String mapToXml(Map<Object, Object> parm, boolean isAddCDATA) {
    	StringBuffer strbuff = new StringBuffer(PREFIX_XML);
    	if (null != parm) {
    		for (Entry<Object, Object> entry : parm.entrySet()) {
    			strbuff.append("<").append(entry.getKey()).append(">");
    			if (isAddCDATA) {
    				strbuff.append(PREFIX_CDATA);
    				if (null != entry.getValue()) {
    					strbuff.append(entry.getValue());
    				}
    				strbuff.append(SUFFIX_CDATA);
    			} else {
    				if (null != entry.getValue()) {
    					strbuff.append(entry.getValue());
    				}
    			}
    			strbuff.append("</").append(entry.getKey()).append(">");
    		}
    	}
    	return strbuff.append(SUFFIX_XML).toString();
    }
    
    
    /**
     * @description 将xml字符串转换成map
     * @param xml
     * @return Map
     */
    public static Map<String, String> xml2Map(String xml) {
        Map<String, String> map = new HashMap<String, String>();
        Document doc = null;
        try {
            doc = DocumentHelper.parseText(xml); // 将字符串转为XML
            Element rootElt = doc.getRootElement(); // 获取根节点
            @SuppressWarnings("unchecked")
            List<Element> list = rootElt.elements();// 获取根节点下所有节点
            for (Element element : list) { // 遍历节点
                map.put(element.getName(), element.getText()); // 节点的name为map的key，text为map的value
            }
        } catch (DocumentException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return map;
    }