[BUG]嵌套解析字段值不能是数值

[JoJoJotarou]

问题描述

简要描述您碰到的问题。

环境信息

请填写以下信息：

• OS信息： win10
• JDK信息： 1.8
• 版本信息：Fastjson2 2.0.53

重现步骤

如何操作可以重现该问题：

1. 使用 main 方法
2. 当 condition: 100 时报错，condition: "100"正常，即condition 不能是数值

3. 出现 ... 错误

   public class fastjson {
   
   public static void main(String[] args) {
       String json1 = "{ \n" +
               "  \"key\": \"1721210291174\",\n" +
               "  \"type\": \"PARALLEL\",\n" +
               "  \"action\": [],\n" +
               "  \"priority\": 1,\n" +
               "  \"condition\": [\n" +
               "    {\n" +
               "      \"key\": 1704359623221,\n" +
               "      \"type\": \"AND\",\n" +
               "      \"action\": [{\"operator\": \"ASSIGNMENT\", \"leftOperand\": \"@@89\",  \"rightOperand\": 128}],\n" +
               "      \"priority\": 1,\n" +
               "      \"condition\": [\n" +
   
               "        { \"type\": \"LEAF\", \"action\": [], \"priority\": 3, \"condition\": 100 }\n" +
               "      ]\n" +
               "    },\n" +
               "    {\n" +
               "      \"key\": 1704359623221,\n" +
               "      \"type\": \"LEAF\",\n" +
               "      \"action\": [{\"operator\": \"ASSIGNMENT\", \"leftOperand\": \"@@89\",  \"rightOperand\": 328}, {\"operator\": \"ASSIGNMENT\", \"leftOperand\": \"@@89\",  \"rightOperand\": 428}],\n" +
               "      \"priority\": 2,\n" +
               "      \"condition\": {\"operator\": \"GE\", \"leftOperand\": \"@@89\",  \"rightOperand\": 281}\n" +
               "    }\n" +
               "  ]\n" +
               "}";
   
       // Rule rule1 = JSON.parseObject(json1, new TypeReference<Rule>() {
       // });
       Rule rule1 = JSON.parseObject(json1, Rule.class);
   
       System.out.println(rule1);
   }
   
   public static class ConditionDeserializer implements ObjectReader<Object> {
       @Override
       public Object readObject(JSONReader jsonReader, Type type, Object o, long l) {
           // 非叶子节点
           if (jsonReader.isArray()) {
               return jsonReader.readArray(Rule.class);
           } else if (jsonReader.isObject()) {
               // 如果是对象，则解析为 Rule
               return jsonReader.read(Expr.class);
           } else if (jsonReader.isNumber()) {
               // 如果是数字，直接返回数值
               return jsonReader.getNumber().longValue();
           } else if (jsonReader.isString()) {
               // 如果是字符串，直接返回字符串
               return jsonReader.readString();
           } else {
               throw new JSONException("Unsupported condition type：" + jsonReader.current());
           }
       }
   }
   
   @Data
   public static class Rule {
       private String key;
       private String type;
       private Object action;
       private int priority;
   
       // Condition 可以是三种类型：Rule、Expr、String 或 Integer
       @JSONField(deserializeUsing = ConditionDeserializer.class)
       private Object condition;
   
       public void setCondition(Object condition) {
           this.condition = condition;
       }
   }
   
   @Data
   public static class Expr {
       private Object leftOperand;
       private String operator;
       private Object rightOperand;
   }
   }

期待的正确结果

对您期望发生的结果进行清晰简洁的描述。

相关日志输出

Exception in thread "main" com.alibaba.fastjson2.JSONException: read field 'com.xinji.rt.configurable.fastjson$Rule.setCondition, offset 358, character 1, line 13, column 70, fastjson-version 2.0.53
{ 
  "key": "1721210291174",
  "type": "PARALLEL",
  "action": [],
  "priority": 1,
  "condition": [
    {
      "key": 1704359623221,
      "type": "AND",
      "action": [{"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 128}],
      "priority": 1,
      "condition": [
        { "type": "LEAF", "action": [], "priority": 3, "condition": 100 }
      ]
    },
    {
      "key": 1704359623221,
      "type": "LEAF",
      "action": [{"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 328}, {"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 428}],
      "priority": 2,
      "condition": {"operator": "GE", "leftOperand": "@@89",  "rightOperand": 281}
    }
  ]
}
    at com.alibaba.fastjson2.reader.FieldReaderObject.readFieldValue(FieldReaderObject.java:165)
    at com.alibaba.fastjson2.reader.ObjectReader5.readObject(ObjectReader5.java:366)
    at com.alibaba.fastjson2.JSON.parseObject(JSON.java:864)
    at com.xinji.rt.configurable.fastjson.main(fastjson.java:43)
Caused by: com.alibaba.fastjson2.JSONException: read field 'com.xinji.rt.configurable.fastjson$Rule.setCondition, offset 358, character 1, line 13, column 70, fastjson-version 2.0.53
{ 
  "key": "1721210291174",
  "type": "PARALLEL",
  "action": [],
  "priority": 1,
  "condition": [
    {
      "key": 1704359623221,
      "type": "AND",
      "action": [{"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 128}],
      "priority": 1,
      "condition": [
        { "type": "LEAF", "action": [], "priority": 3, "condition": 100 }
      ]
    },
    {
      "key": 1704359623221,
      "type": "LEAF",
      "action": [{"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 328}, {"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 428}],
      "priority": 2,
      "condition": {"operator": "GE", "leftOperand": "@@89",  "rightOperand": 281}
    }
  ]
}
    at com.alibaba.fastjson2.reader.FieldReaderObject.readFieldValue(FieldReaderObject.java:165)
    at com.alibaba.fastjson2.reader.ObjectReader5.readObject(ObjectReader5.java:366)
    at com.alibaba.fastjson2.JSONReader.readArray(JSONReader.java:2410)
    at com.xinji.rt.configurable.fastjson$ConditionDeserializer.readObject(fastjson.java:53)
    at com.alibaba.fastjson2.reader.FieldReaderObject.readFieldValue(FieldReaderObject.java:152)
    ... 3 more
Caused by: com.alibaba.fastjson2.JSONException: illegal fieldName input1, offset 358, character 1, line 13, column 70, fastjson-version 2.0.53
{ 
  "key": "1721210291174",
  "type": "PARALLEL",
  "action": [],
  "priority": 1,
  "condition": [
    {
      "key": 1704359623221,
      "type": "AND",
      "action": [{"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 128}],
      "priority": 1,
      "condition": [
        { "type": "LEAF", "action": [], "priority": 3, "condition": 100 }
      ]
    },
    {
      "key": 1704359623221,
      "type": "LEAF",
      "action": [{"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 328}, {"operator": "ASSIGNMENT", "leftOperand": "@@89",  "rightOperand": 428}],
      "priority": 2,
      "condition": {"operator": "GE", "leftOperand": "@@89",  "rightOperand": 281}
    }
  ]
}
    at com.alibaba.fastjson2.JSONReaderUTF16.readFieldNameHashCode(JSONReaderUTF16.java:1130)
    at com.alibaba.fastjson2.reader.ObjectReader5.readObject(ObjectReader5.java:336)
    at com.alibaba.fastjson2.JSONReader.readArray(JSONReader.java:2410)
    at com.xinji.rt.configurable.fastjson$ConditionDeserializer.readObject(fastjson.java:53)
    at com.alibaba.fastjson2.reader.FieldReaderObject.readFieldValue(FieldReaderObject.java:152)
    ... 7 more

附加信息

如果你还有其他需要提供的信息，可以在这里填写（可以提供截图、视频等）。

[JoJoJotarou]

应该用readIntXXXValue，被getNumber迷惑了，这个getNumber取得值也是错的。