JAVA 实现XML与JSON 相互转换

客官°小女子只卖身不卖艺 2022-07-12 02:24 272阅读 0赞

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：

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：

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：