创建 JsonConverter.java

src/main/java/com/kimgo/wepush/common/JsonConverter.java

@@ -0,0 +1,22 @@
+package com.kimgo.wepush.common;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class JsonConverter<T> {
+
+    private final ObjectMapper objectMapper;
+
+    public JsonConverter () {
+        this.objectMapper = new ObjectMapper();
+    }
+
+    // 将对象序列化为 JSON 字符串
+    public String serialize(T object) throws JsonProcessingException {
+        return objectMapper.writeValueAsString(object);
+    }
+    // 将 JSON 字符串反序列化为对象
+    public T deserialize(String json, Class<T> clazz) throws JsonProcessingException {
+        return objectMapper.readValue(json, clazz);
+    }
+}