From 80ddeb0ecb1318790cc65fc6a7c917f824914299 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=88=9A=E8=BE=B0=E5=85=88=E7=94=9F?= <qichen111@126.com>
Date: Thu, 5 Dec 2024 20:39:36 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=B7=A5=E4=BD=9C=E6=B5=81?=
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---
 .../converter/JsonObjectConverter.java        | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 backend/src/main/java/com/qqchen/deploy/backend/workflow/converter/JsonObjectConverter.java

diff --git a/backend/src/main/java/com/qqchen/deploy/backend/workflow/converter/JsonObjectConverter.java b/backend/src/main/java/com/qqchen/deploy/backend/workflow/converter/JsonObjectConverter.java
new file mode 100644
index 00000000..83fa5ad0
--- /dev/null
+++ b/backend/src/main/java/com/qqchen/deploy/backend/workflow/converter/JsonObjectConverter.java
@@ -0,0 +1,45 @@
+package com.qqchen.deploy.backend.workflow.converter;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.persistence.AttributeConverter;
+import jakarta.persistence.Converter;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.util.StringUtils;
+
+/**
+ * JSON对象转换器
+ * 用于在数据库字符串和Java对象之间进行转换
+ */
+@Slf4j
+@Converter
+public class JsonObjectConverter implements AttributeConverter<Object, String> {
+
+    private static final ObjectMapper objectMapper = new ObjectMapper();
+
+    @Override
+    public String convertToDatabaseColumn(Object attribute) {
+        if (attribute == null) {
+            return null;
+        }
+        try {
+            return objectMapper.writeValueAsString(attribute);
+        } catch (JsonProcessingException e) {
+            log.error("Error converting object to json string", e);
+            return null;
+        }
+    }
+
+    @Override
+    public Object convertToEntityAttribute(String dbData) {
+        if (!StringUtils.hasText(dbData)) {
+            return null;
+        }
+        try {
+            return objectMapper.readValue(dbData, Object.class);
+        } catch (JsonProcessingException e) {
+            log.error("Error converting json string to object", e);
+            return null;
+        }
+    }
+} 
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