正则表达式从 Json 节点中删除特殊字符

Question

我有一个如下所示的 JSON 节点，我需要从中删除#like DynamicAttribute#1279930005#ZZ8400 之后的所有值到 DynamicAttribute

{
"uniqueCode": "ZZ",
"entity": "PROFILE",
"id": "e2b627b360d664377b227b--70378143#1",
"data": [
    "DynamicAttribute"
],
"values": {
    "DynamicAttribute#1279930005#ZZ8400": [
        {
            "property": "activeFlag",
            "currentState": true,
            "previousState": null
        }
    ]
},
"DATE_TIME": "05-Apr-2023 19:17:14.376"}

到目前为止我尝试的是如下：

String eventData; //Has the above json payload
ObjectMapper objectMapper = new ObjectMapper();
JsonNode jsonNode = objectMapper.readTree(eventData);
ObjectNode objectNode = objectMapper.convertValue(jsonNode.get("values"), ObjectNode.class);
objectNode.toString().replaceAll("\\#.*", "\":[");

但上面只给我如下所示，并从 json 中删除其余字段：

"{"动态属性":["

Answer 1

如果你对正则表达式感兴趣，你可以使用这个：

#\\w+#\\w+

匹配（并删除）2组#abc或类似

#\\d+#\\w+

的东西如果第一个总是数字：

@Test
void test() throws JsonProcessingException {
    String eventData = """
        {
            "uniqueCode": "ZZ",
            "entity": "PROFILE",
            "id": "e2b627b360d664377b227b--70378143#1",
            "data": [
                "DynamicAttribute"
            ],
            "values": {
                "DynamicAttribute#1279930005#ZZ8400": [
                    {
                        "property": "activeFlag",
                        "currentState": true,
                        "previousState": null
                    }
                ]
            },
            "DATE_TIME": "05-Apr-2023 19:17:14.376"
        }
        """;

    ObjectMapper objectMapper = new ObjectMapper();
    JsonNode jsonNode = objectMapper.readTree(eventData);
    ObjectNode objectNode = objectMapper.convertValue(jsonNode.get("values"), ObjectNode.class);

    String json = objectNode.toString().replaceAll("#\\w+#\\w+", "");
    assertEquals(json, "{\"DynamicAttribute\":[{\"property\":\"activeFlag\",\"currentState\":true,\"previousState\":null}]}");
}