JAVA 实现XML与JSON 相互转换 博客分类： java

1.把XML转为JSON格式

     

        

[java] view plain copy

 

1. @SuppressWarnings("rawtypes")  
2.     public static  String xmlToJSON(String xml,int jsonType) {  
3.         JSONObject obj = new JSONObject();  
4.         try {  
5.             InputStream is = new ByteArrayInputStream(xml.getBytes("utf-8"));  
6.             SAXBuilder sb = new SAXBuilder();  
7.             Document doc = sb.build(is);  
8.             Element root = doc.getRootElement();  
9.             Map map=iterateElement(root);  
10.            obj.put(root.getName(),map);  
11.            return obj.toString();  
12.         } catch (Exception e) {  
13.             e.printStackTrace();  
14.             return null;  
15.         }  
16.     }  
17.   
18.   
19. @SuppressWarnings({ "unchecked", "rawtypes" })  
20.     private static Map  iterateElement(Element root) {  
21.         List childrenList = root.getChildren();  
22.         Element element = null;  
23.         Map map = new HashMap();  
24.         List list = null;  
25.         for (int i = 0; i < childrenList.size(); i++) {  
26.             list = new ArrayList();  
27.             element = (Element) childrenList.get(i);  
28.             if(element.getChildren().size()>0){  
29.                 if(root.getChildren(element.getName()).size()>1){  
30.                     if (map.containsKey(element.getName())) {  
31.                         list = (List) map.get(element.getName());  
32.                     }  
33.                     list.add(iterateElement(element));  
34.                     map.put(element.getName(), list);  
35.                 }else{  
36.                     map.put(element.getName(), iterateElement(element));  
37.                 }  
38.             }else {  
39.                 if(root.getChildren(element.getName()).size()>1){  
40.                     if (map.containsKey(element.getName())) {  
41.                         list = (List) map.get(element.getName());  
42.                     }  
43.                     list.add(element.getTextTrim());  
44.                     map.put(element.getName(), list);  
45.                 }else{  
46.                     map.put(element.getName(), element.getTextTrim());  
47.                 }  
48.             }  
49.         }  
50.           
51.         return map;  
52.     }  
53.       
54.   
55.   
56.     public static void main(String[] args) throws ParseException  
57.     {         
58.         String xml="<ROOT>"+  
59.         "<Status>00</Status>"+  
60.         "<ErrorMsg></ErrorMsg>"+  
61.         "<Data>"+  
62.            "<Row>"+  
63.               "<PERSONID>35020500200610000000000701355116</PERSONID>"+  
64.               "<XM>吴聪楠</XM><SFZH>350624198908052530</SFZH>"+  
65.            "</Row>"+  
66.            "<Row>"+  
67.               "<PERSONID>35020500200610000000000701355117</PERSONID>"+  
68.               "<XM>吴聪楠2</XM><SFZH>350624198908052531</SFZH>"+  
69.               "</Row>"+  
70.           "</Data>"+  
71.     "</ROOT>";  
72.   
73.           
74.         String str=Xml2JsonUtil.xmlToJSON(xml,1);  
75.       System.out.println(str);  
76. }

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：

   <span style="font-size:18px;">{"ROOT":{"Data":{"Row":[{"SFZH":"350624198908052530","XM":"吴聪楠","PERSONID":"35020500200610000000000701355116"},{"SFZH":"350624198908052530","XM":"吴聪楠2","PERSONID":"35020500200610000000000701355117"}]},"Status":"00","ErrorMsg":""}}</span>

 

  2.JSON 转换为XML格式

    

[java] view plain copy

 

1. public static  String JsonToXml(Object json)   
2.     {  
3.         if(json==null){  
4.             return null;  
5.         }else{  
6.          Element elements=new Element("xml");  
7.          getXMLFromObject(json,"xml",elements);  
8.          XMLOutputter xmlOut = new XMLOutputter();    
9.          String res=xmlOut.outputString(elements);  
10.          return res;  
11.        }  
12.     }  
13.   
14.   
15. private static void getXMLFromObject(Object obj,String tag,Element parent)  
16.     {  
17.         if(obj==null)  
18.             return;  
19.         Element child;  
20.         String eleStr;  
21.         Object childValue;  
22.         if(obj instanceof JSONObject)  
23.         {  
24.             JSONObject jsonObject=(JSONObject)obj;  
25.             for(Object temp:jsonObject.keySet())  
26.             {  
27.                 eleStr=temp.toString();  
28.                 childValue=jsonObject.get(temp);  
29.                 child=new Element(eleStr);  
30.                 if(childValue instanceof JSONArray)  
31.                     getXMLFromObject(childValue,eleStr,parent,count);  
32.                 else{  
33.                     parent.addContent(child);  
34.                     getXMLFromObject(childValue,eleStr,child,count);  
35.                 }  
36.             }  
37.         }else if(obj instanceof JSONArray){  
38.             JSONArray jsonArray=(JSONArray)obj;  
39.             for(int i=0;i<jsonArray.size();i++)  
40.             {  
41.                 childValue=jsonArray.get(i);  
42.                 child=new Element(tag);  
43.                 parent.addContent(child);  
44.                 getXMLFromObject(childValue,tag,child,count);  
45.             }  
46.         }else if(obj instanceof Date){  
47.             SimpleDateFormat sf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
48.             parent.setText(sf.format((Date)obj));  
49.         }else{  
50.             parent.setText(obj.toString());  
51.         }  
52.     }  
53.           
54.   
55. public static void main(String[] args) throws ParseException  
56.     {  
57.   JSONObject rootObject=new JSONObject();  
58.        
59.       JSONArray dataArray=new JSONArray();  
60.       JSONObject dataObject1=new JSONObject();  
61.       dataObject1.put("PERSONID", "35020500200610000000000701355117");  
62.       dataObject1.put("XM", "吴聪楠");  
63.       dataObject1.put("SFZH","350624198908052530");  
64.       dataArray.add(dataObject1);  
65.       JSONObject dataObject2=new JSONObject();  
66.       dataObject2.put("PERSONID", "35020500200610000000000701355116");  
67.       dataObject2.put("XM", "吴聪楠2");  
68.       dataObject2.put("SFZH","350624198908052531");  
69.       dataArray.add(dataObject2);  
70.       
71.       JSONObject dataRootObject=new JSONObject();  
72.       dataRootObject.put("Row", dataArray);  
73.       JSONObject dataObject=new JSONObject();  
74.       dataObject.put("Status", "00");  
75.       dataObject.put("ErrorMsg", "");  
76.       dataObject.put("Data",dataRootObject);  
77.       rootObject.put("ROOT", dataObject);  
78.         
79.       System.out.println(rootObject.toString());  
80.       System.out.println(JsonToXml(rootObject));          
81.           
82.     }</span>  

  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>