[开发工具]通过一个json获取获取另一个json的值

 @Test
 void resolveJsonTest() throws Exception {
     String source = "{\"k1\":\"v2\",\"k2\":{\"v2\":\"v2k1\"}}";
     String target = "{\"k1\":{\"v1\":\"v1v1\"},\"k2\":{\"v2\":{\"v2k1\":\"v2v1\"}}}";
     JSONObject jor = JSONObject.parseObject(source);
     JSONObject jop = JSONObject.parseObject(target);
     List<String> params = new ArrayList<>();
     resolveJson(jor, jop, params);
     System.out.println(params);
 }

 /**
  * 通过一个json获取获取另一个json的值
  * @param jor
  *{
  *     "k1":"v1",
  *     "k2":{
  *         "v2":"v2k1"
  *     }
  * }
  *
  * @param jop
  *{
  *     "k1":{
  *         "v1":"v1v1"
  *     },
  *     "k2":{
  *         "v2":{
  *             "v2k1":"v2v1"
  *         }
  *     }
  * }
  * @param params 最后一层参数聚合
  * @throws Exception
  */
 private void resolveJson(JSONObject jor, JSONObject jop, List<String> params) throws Exception {
     Set<String> jorKeys = jor.keySet();
     for (String k : jorKeys) {
         Object jopNext;
         Object jorNext;
         if (jop.containsKey(k)) {
             //获取下一层
             jopNext = jop.get(k);
             jorNext = jor.get(k);
             if (jorNext instanceof JSONObject) {
                 if (jopNext instanceof JSONObject) {
                     resolveJson((JSONObject) jorNext, (JSONObject) jopNext, params);
                     continue;
                 }
                 throw new Exception(jorNext + " 无法解析 " + jopNext);
             } else {
                 if (jopNext instanceof JSONObject) {
                     if (((JSONObject) jopNext).containsKey(jorNext)) {
                         Object param = ((JSONObject) jopNext).get(jorNext);
                         if (param instanceof JSONObject) {
                             throw new Exception(jorNext + " 无法解析 " + param);
                         }
                         params.add((String) param);
                         continue;
                     } else {
                         throw new Exception(jopNext + " 不存在key " + jorNext);
                     }
                 }
             }
         } else {
             throw new Exception(jop + " 不存在key " + k);
         }
     }
 }

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