JAVA 实现XML与JSON 相互转换

1.把XML转为JSON格式

@SuppressWarnings("rawtypes")      public static  String xmlToJSON(String xml,int jsonType) {          JSONObject obj = new JSONObject();          try {              InputStream is = new ByteArrayInputStream(xml.getBytes("utf-8"));              SAXBuilder sb = new SAXBuilder();              Document doc = sb.build(is);              Element root = doc.getRootElement();              Map map=iterateElement(root);             obj.put(root.getName(),map);             return obj.toString();          } catch (Exception e) {              e.printStackTrace();              return null;          }      }      @SuppressWarnings({ "unchecked", "rawtypes" })      private static Map  iterateElement(Element root) {          List childrenList = root.getChildren();          Element element = null;          Map map = new HashMap();          List list = null;          for (int i = 0; i < childrenList.size(); i++) {              list = new ArrayList();              element = (Element) childrenList.get(i);              if(element.getChildren().size()>0){                  if(root.getChildren(element.getName()).size()>1){                      if (map.containsKey(element.getName())) {                          list = (List) map.get(element.getName());                      }                      list.add(iterateElement(element));                      map.put(element.getName(), list);                  }else{                      map.put(element.getName(), iterateElement(element));                  }              }else {                  if(root.getChildren(element.getName()).size()>1){                      if (map.containsKey(element.getName())) {                          list = (List) map.get(element.getName());                      }                      list.add(element.getTextTrim());                      map.put(element.getName(), list);                  }else{                      map.put(element.getName(), element.getTextTrim());                  }              }          }                    return map;      }                public static void main(String[] args) throws ParseException      {                 String xml="<ROOT>"+          "<Status>00</Status>"+          "<ErrorMsg></ErrorMsg>"+          "<Data>"+             "<Row>"+                "<PERSONID>35020500200610000000000701355116</PERSONID>"+                "<XM>吴聪楠</XM><SFZH>350624198908052530</SFZH>"+             "</Row>"+             "<Row>"+                "<PERSONID>35020500200610000000000701355117</PERSONID>"+                "<XM>吴聪楠2</XM><SFZH>350624198908052531</SFZH>"+                "</Row>"+            "</Data>"+      "</ROOT>";                      String str=Xml2JsonUtil.xmlToJSON(xml,1);        System.out.println(str);  }

原来的格式：

    <ROOT><Status>00</Status><ErrorMsg></ErrorMsg><Data><Row><PERSONID>35020500200610000000000701355116</PERSONID><XM>吴聪楠</XM><SFZH>350624198908052530</SFZH></Row><Row><PERSONID>35020500200610000000000701355117</PERSONID><XM>吴聪楠2</XM><SFZH>350624198908052530</SFZH></Row></Data></ROOT>

转换完的格式：

           {"ROOT":{"Data":{"Row":[{"SFZH":"350624198908052530","XM":"吴聪楠","PERSONID":"35020500200610000000000701355116"},{"SFZH":"350624198908052530","XM":"吴聪楠2","PERSONID":"35020500200610000000000701355117"}]},"Status":"00","ErrorMsg":""}}

2.JSON 转换为XML格式

public static  String JsonToXml(Object json)       {          if(json==null){              return null;          }else{           Element elements=new Element("xml");           getXMLFromObject(json,"xml",elements);           XMLOutputter xmlOut = new XMLOutputter();             String res=xmlOut.outputString(elements);           return res;         }      }      private static void getXMLFromObject(Object obj,String tag,Element parent)      {          if(obj==null)              return;          Element child;          String eleStr;          Object childValue;          if(obj instanceof JSONObject)          {              JSONObject jsonObject=(JSONObject)obj;              for(Object temp:jsonObject.keySet())              {                  eleStr=temp.toString();                  childValue=jsonObject.get(temp);                  child=new Element(eleStr);                  if(childValue instanceof JSONArray)                      getXMLFromObject(childValue,eleStr,parent,count);                  else{                      parent.addContent(child);                      getXMLFromObject(childValue,eleStr,child,count);                  }              }          }else if(obj instanceof JSONArray){              JSONArray jsonArray=(JSONArray)obj;              for(int i=0;i<jsonArray.size();i++)              {                  childValue=jsonArray.get(i);                  child=new Element(tag);                  parent.addContent(child);                  getXMLFromObject(childValue,tag,child,count);              }          }else if(obj instanceof Date){              SimpleDateFormat sf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");              parent.setText(sf.format((Date)obj));          }else{              parent.setText(obj.toString());          }      }              public static void main(String[] args) throws ParseException      {    JSONObject rootObject=new JSONObject();               JSONArray dataArray=new JSONArray();        JSONObject dataObject1=new JSONObject();        dataObject1.put("PERSONID", "35020500200610000000000701355117");        dataObject1.put("XM", "吴聪楠");        dataObject1.put("SFZH","350624198908052530");        dataArray.add(dataObject1);        JSONObject dataObject2=new JSONObject();        dataObject2.put("PERSONID", "35020500200610000000000701355116");        dataObject2.put("XM", "吴聪楠2");        dataObject2.put("SFZH","350624198908052531");        dataArray.add(dataObject2);              JSONObject dataRootObject=new JSONObject();        dataRootObject.put("Row", dataArray);        JSONObject dataObject=new JSONObject();        dataObject.put("Status", "00");        dataObject.put("ErrorMsg", "");        dataObject.put("Data",dataRootObject);        rootObject.put("ROOT", dataObject);                System.out.println(rootObject.toString());        System.out.println(JsonToXml(rootObject));                        }

转换完的格式：

   

<ROOT><Status>00</Status><ErrorMsg></ErrorMsg><Data><Row><PERSONID>35020500200610000000000701355117</PERSONID><XM>吴聪楠</XM><SFZH>350624198908052530</SFZH></Row><Row><PERSONID>35020500200610000000000701355116</PERSONID><XM>吴聪楠2</XM><SFZH>350624198908052531</SFZH></Row></Data></ROOT>

 原来的格式：

     

{"ROOT":{"Status":"00","ErrorMsg":"","Data":{"Row":[{"PERSONID":"35020500200610000000000701355117","XM":"吴聪楠","SFZH":"350624198908052530"},{"PERSONID":"35020500200610000000000701355116","XM":"吴聪楠2","SFZH":"350624198908052531"}]}}}

转换完的格式：

   

<ROOT><Status>00</Status><ErrorMsg></ErrorMsg><Data><Row><PERSONID>35020500200610000000000701355117</PERSONID><XM>吴聪楠</XM><SFZH>350624198908052530</SFZH></Row><Row><PERSONID>35020500200610000000000701355116</PERSONID><XM>吴聪楠2</XM><SFZH>350624198908052531</SFZH></Row></Data></ROOT>