From 614454c029690af59f08cc993f870d3d2c205405 Mon Sep 17 00:00:00 2001
From: jaysunxiao <jaysunxiao.gmail.com>
Date: Mon, 11 Oct 2021 20:49:05 +0800
Subject: [PATCH] =?UTF-8?q?perf[boot]:=20=E5=A2=9E=E5=8A=A0Jackson?=
 =?UTF-8?q?=E7=9A=84=E8=87=AA=E5=8A=A8=E5=8C=96=E9=85=8D=E7=BD=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/zfoo/boot/BootAutoConfiguration.java  | 45 +++++++++++++++++++
 .../main/resources/META-INF/spring.factories  |  3 +-
 2 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 boot/src/main/java/com/zfoo/boot/BootAutoConfiguration.java

diff --git a/boot/src/main/java/com/zfoo/boot/BootAutoConfiguration.java b/boot/src/main/java/com/zfoo/boot/BootAutoConfiguration.java
new file mode 100644
index 00000000..cef98449
--- /dev/null
+++ b/boot/src/main/java/com/zfoo/boot/BootAutoConfiguration.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 The zfoo Authors
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and limitations under the License.
+ */
+
+package com.zfoo.boot;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.zfoo.protocol.util.JsonUtils;
+import com.zfoo.protocol.util.ReflectionUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import java.lang.reflect.Field;
+
+/**
+ * @author jaysunxiao
+ * @version 3.0
+ */
+@Configuration(proxyBeanMethods = false)
+public class BootAutoConfiguration {
+
+    private static final Logger logger = LoggerFactory.getLogger(BootAutoConfiguration.class);
+
+    @Bean
+    @ConditionalOnMissingBean
+    public ObjectMapper getObjectMapper() throws NoSuchFieldException {
+        // 断点进入ObjectMapper，看到的确和JsonUtils用的是同一个对象
+        Field field = JsonUtils.class.getDeclaredField("MAPPER");
+        ReflectionUtils.makeAccessible(field);
+        logger.info("Jackson auto config successfully!");
+        return (ObjectMapper) ReflectionUtils.getField(field, null);
+    }
+
+}
diff --git a/boot/src/main/resources/META-INF/spring.factories b/boot/src/main/resources/META-INF/spring.factories
index c3f8d4fe..2316cbb9 100644
--- a/boot/src/main/resources/META-INF/spring.factories
+++ b/boot/src/main/resources/META-INF/spring.factories
@@ -1,6 +1,7 @@
 org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+com.zfoo.boot.BootAutoConfiguration,\
 com.zfoo.boot.EventAutoConfiguration,\
 com.zfoo.boot.SchedulerAutoConfiguration,\
 com.zfoo.boot.StorageAutoConfiguration,\
 com.zfoo.boot.OrmAutoConfiguration,\
-com.zfoo.boot.NetAutoConfiguration
\ No newline at end of file
+com.zfoo.boot.NetAutoConfiguration