From f89b74dae70014e8a2488eca9a36f477dbaa5802 Mon Sep 17 00:00:00 2001
From: HuangZhikai <386754646@qq.com>
Date: Sun, 31 May 2026 14:52:34 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'project/util'?=
MIME-Version: 1.0
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---
 project/util/JsonSerializer.java | 55 ++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 project/util/JsonSerializer.java

diff --git a/project/util/JsonSerializer.java b/project/util/JsonSerializer.java
new file mode 100644
index 0000000..aa68b8a
--- /dev/null
+++ b/project/util/JsonSerializer.java
@@ -0,0 +1,55 @@
+package com.crawler.util;
+
+import com.crawler.model.CrawlerData;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+public class JsonSerializer {
+
+    private static final ObjectMapper objectMapper;
+
+    static {
+        objectMapper = new ObjectMapper();
+        objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
+    }
+
+    private JsonSerializer() {}
+
+    public static void serializeToFile(List<CrawlerData> dataList, String filePath) throws IOException {
+        File file = new File(filePath);
+        File parentDir = file.getParentFile();
+        if (parentDir != null && !parentDir.exists()) {
+            parentDir.mkdirs();
+        }
+        objectMapper.writeValue(file, dataList);
+    }
+
+    public static List<CrawlerData> deserializeFromFile(String filePath) throws IOException {
+        File file = new File(filePath);
+        if (!file.exists()) {
+            throw new IOException("文件不存在: " + filePath);
+        }
+        return objectMapper.readValue(file, new TypeReference<List<CrawlerData>>() {});
+    }
+
+    public static String toJsonString(List<CrawlerData> dataList) throws IOException {
+        return objectMapper.writeValueAsString(dataList);
+    }
+
+    public static String toJsonString(CrawlerData data) throws IOException {
+        return objectMapper.writeValueAsString(data);
+    }
+
+    public static List<CrawlerData> fromJsonString(String jsonString) throws IOException {
+        return objectMapper.readValue(jsonString, new TypeReference<List<CrawlerData>>() {});
+    }
+
+    public static CrawlerData fromJsonStringToSingle(String jsonString) throws IOException {
+        return objectMapper.readValue(jsonString, CrawlerData.class);
+    }
+}
\ No newline at end of file