XML格式处理【map与xml互转】

╰+攻爆jí腚メ 2024-03-30 16:38 56阅读 0赞

## XML格式处理【map与xml互转】 ##

### 1 工具类 ###

#### 1.1 通过dom4j处理 ####

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;
    
    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 parm
         * @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();
        }
    
    
        /**
         * @param xml
         * @return Map
         * @description 将xml字符串转换成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;
        }
    }