java

关注公众号 jb51net

关闭
首页 > 软件编程 > java > java xml转json

java xml转为json的n种方法

作者:穆晟铭

本文给大家分享java xml转为json的两种方法,每种方法通过实例代码给大家介绍的非常详细,小编感觉第一种方法要比第二种方法好些,具体实现代码跟随小编一起看看吧

java xml转为json的两种方法

<?xml version="1.0" encoding="utf-8" ?>
<auibinsurancecallback>
<policyinfo>
<transtype>TKTS</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>";

先来看效果,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"
        ],
        "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
    }
  }
}

从效果来看,明显是第二种方法,比第一种好。

下面把代码贴出出来

第一种实现: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);
            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);
            }
        }
        return obj;
    }
 
 @Test
    public void xml1(){
        String  xml = 上面贴的xml;
 
        JSONObject json= null;
        try {
            json = xml2JSON(xml.getBytes());
            System.out.println(json.toJSONString());
        } catch (JDOMException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }

第二种实现:用的org.json包,

在用org.json包的时候,需要把spring-boot-starter-test中的,android-json排除,要不然会报错:

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>

实现方法简单:

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

到此这篇关于java xml转为json的两种方法的文章就介绍到这了,更多相关java xml转json内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家!

您可能感兴趣的文章:
阅读全文