java xml轉為json的n種方法_程式設計

xml轉為on的兩種方法

<?xml version="1.0" encoding="utf-8" ?>
<auibinsurancecallback>
<policyinfo>
<transtype>TKTS&lt;/transtype>
<eticketno>xxx</eticketno>
<flightnumber>xxx</flightnumber>
<flightdate>2019-10-16</flightdate>
<operatetime>2019-10-16 17:20:00</operatetime>
<insureno>1910161720056066735</insureno><agreeno>102160199</agreeno>
<policyno>
</policyno><policyurl>
<!--[CDATA[]]-->
</policyurl></policyinfo>
<returninfo>
<serialnumber>2019103015284949545354
</serialnumber>
<retruncode>0</retruncode><errormessage>
<!--[CDATA[xxx]]-->
</errormessage>
</returninfo>
</auibinsurancecallback>";

先來看效果，效果一：

{
  "auibinsurancecallback": {
    "returninfo": [
      {
        "retruncode": [
          "0"
        ],"serialnumber": [
          "2019103015284949545354"
        ]
      }
    ],"policyinfo": [
      {
        "operatetime": [
          "2019-10-16 17:20:00"
        ],"transtype": [
          "TKTS"
        ],"flightdate": [
          "2019-10-16"
        ],"insureno": [
          "1910161720056066735"
        ],"flightnumber": [
          "xxx"
        ],www.cppcns.com     "agreeno": [
          "102160199"
        ],"eticketno": [
          "xxxx"
        ]
      }
    ]
  }
}

效果二：

{
  "auibinsurancecallback": {
    "returninfo": {
      "errormessage": "","retruncode": 0,"serialnumber": 2.0191030152849496e+21
    },"policyinfo": {
      "policyurl": "","operatetime": "2019-10-16 17:20:00","transtype": "TKTS","flightdate": "2019-10-16","insureno": 1910161720056066800,"flightnumber": "xxx","agreeno": 102160199,"policyno": "","eticketno": xxx
    }
  }
}

從效果來看，明顯是第二種方法，比第一種好。

下面把程式碼貼出出來

第一種實現：用到的包是fastjson,jdom2

public static JSONObject xml2JSON(byte[] xml) throws JDOMException,IOException {
        JSONObject json = new JSONObject();
        InputStream is = new ByteArrayInputStream(xml);
        SAXBuilder sb = new SAXBuilder();
        org.jdom2.Document doc = sb.build(is);
        Element root = doc.getRootElement();
        json.put(root.getName(),iterateElement(root));
        return json;
    }
 
    private static JSONObject iterateElement(Element element) {
        List node = element.getChildren();
        Element et = null;
        JSONObject obj = new JSONObject();
        List list = null;
        for (int i = 0; i < node.size(); i++) {
            list = new LinkedList();
            et = (Element) node.get(i)http://www.cppcns.com;
            if (et.getTextTrim().equals("")) {
                if (et.getChildren().size() == 0)
                    continue;
                if (obj.containsKey(et.getName())) {
                    list = (List) obj.get(et.getName());
                }
                list.add(iterateElement(et));
                obj.put(et.getName(),list);
            } else {
                if (obj.containsKey(et.getName())) {
                    list = (List) obj.get(et.getName());
                }
                list.add(et.getTextTrim());
                obj.put(et.getName(),list);
       www.cppcns.com     }
        }
        return obj;
    }
 
 @Test
    public void xml1(){
        String  xml = 上面貼的xml;
 
        JSONObject json= null;
        try {
            json = xml2JSON(xml.getBytes());
            System.out.println(json.toJSONString());
        } catch (JDOMException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }

第二種實現：用的org.json包，

在用org.json包的時候，需要把spring-boot-starter-test中的，-json排除，要不然會報錯：

java.lang.NoSuchMethodError: org.json.JSONTokener.<init>(Ljava/io/Reader;)V

java.lang.NoSuchMethodError: org.json.JSONObject.put(Ljava/lang/String;Ljava/util/Collection;)

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>com.vaadin.external.google</groupId>
                    <artifactId>android-json</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

實現方法簡單：

org.json.JSONObject xmlJSONObj = null;
       try {
           xmlJSONObj = XML.toJSONObject(xml);
           log.debug("json:" + xmlJSONObj.toString() );
       } catch (JSONException e) {
           e.printStackTrace();
       }

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java xml轉為json的n種方法

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