CONMISANMA的正確答案——簡單的JSON轉XML

測試系統：win10 x64

JDK版本：1.8

IDE工具：netbeans 11

已知缺陷：未做轉義

（ 如果覺得好用，請點個贊👍~ ）

 

1. 需要加載的包

   
           <dependency>
               <groupId>com.alibaba</groupId>
               <artifactId>fastjson</artifactId>
               <version>1.2.68</version>
               <type>jar</type>
           </dependency>
           <dependency>
               <groupId>commons-lang</groupId>
               <artifactId>commons-lang</artifactId>
               <version>2.5</version>
               <type>jar</type>
           </dependency>

    

2. 代碼

   //Main.java
   
   import com.alibaba.fastjson.JSON;
   import com.alibaba.fastjson.JSONObject;
   import org.apache.commons.lang.StringUtils;
   
   /**
    *
    * @author Administrator
    */
   public class Main {
   
       public static void main(String[] args) {
           String json = "{\"student\":{\"name\":\"cherry\",\"id\":1,\"age\":666,\"desc\":{\"state\":777,\"items\":{\"isTure\":\"ture\"}}}}";
           JSONObject jsono = JSON.parseObject(json);
           System.out.println(json2xml(jsono));
       }
   
       /**
        * JSON對象轉XML的字符串
        *
        * @param data 需被轉換的json對象
        * @return
        */
       public static String json2xml(JSONObject data) {
           StringBuilder result = new StringBuilder();
           result.append("<xml>");
           result.append(json2xmlFormat(data));
           result.append("</xml>");
           return result.toString();
       }
   
       /**
        * JSON對象轉XML格式的字符串
        *
        * @param data 需被轉換的json對象
        * @return
        */
       public static String json2xmlFormat(JSONObject data) {
           StringBuilder result = new StringBuilder();
   
           // 檢測當前對象是否JSON
           if (checkObjectIsJSON(data)) {
               data.entrySet().forEach(
                       (entry) -> {
                           String key = entry.getKey();
                           Object value = entry.getValue();
   
                           result.append("<").append(key).append(">");
                           result.append(checkObjectIsJSON(value) ? json2xmlFormat(JSON.parseObject(String.valueOf(value))) : value);
                           result.append("</").append(key).append(">");
                       }
               );
           }
   
           return result.toString();
       }
   
       /**
        * 檢測一個對象是否JSON對象
        *
        * @param o 被檢測的對象
        * @return
        */
       public static boolean checkObjectIsJSON(Object o) {
           boolean result = true;
   
           String currentObjectToString = String.valueOf(o);
           if (StringUtils.isBlank(currentObjectToString)) {
               result = false;
           } else {
               try {
                   JSON.parseObject(currentObjectToString);
               } catch (Exception e) {
                   result = false;
               }
           }
   
           return result;
       }
   }