add jmh

hutool-json/src/main/java/org/dromara/hutool/json/JSON.java

@@ -18,6 +18,7 @@ package org.dromara.hutool.json;
 
 import org.dromara.hutool.core.bean.path.BeanPath;
 import org.dromara.hutool.core.lang.mutable.MutableEntry;
+import org.dromara.hutool.core.reflect.TypeUtil;
 import org.dromara.hutool.json.writer.JSONWriter;
 
 import java.io.Serializable;
@@ -260,7 +261,11 @@ public interface JSON extends Serializable {
 	 * @param type {@link Type}
 	 * @return 实体类对象
 	 */
+	@SuppressWarnings("unchecked")
 	default <T> T toBean(final Type type) {
+		if(JSON.class.isAssignableFrom(TypeUtil.getClass(type))){
+			return (T) this;
+		}
 		return getFactory().toBean(this, type);
 	}
 }

hutool-json/src/main/java/org/dromara/hutool/json/engine/moshi/MoshiEngine.java

@@ -67,7 +67,7 @@ public class MoshiEngine extends AbstractJSONEngine implements Wrapper<Moshi> {
 	public void serialize(final Object bean, final OutputStream out) {
 		final BufferedSink sink = Okio.buffer(Okio.sink(out));
 		try {
-			getAdapter(this.moshi, bean.getClass()).toJson(sink, bean);
+			getAdapter(bean.getClass()).toJson(sink, bean);
 		} catch (final IOException e) {
 			throw new JSONException(e);
 		}
@@ -75,7 +75,7 @@ public class MoshiEngine extends AbstractJSONEngine implements Wrapper<Moshi> {
 
 	@Override
 	public String toJsonString(final Object bean) {
-		final JsonAdapter<Object> adapter = getAdapter(this.moshi, bean.getClass());
+		final JsonAdapter<Object> adapter = getAdapter(bean.getClass());
 		return adapter.toJson(bean);
 	}
 
@@ -117,11 +117,10 @@ public class MoshiEngine extends AbstractJSONEngine implements Wrapper<Moshi> {
 	/**
 	 * 获取并配置{@link JsonAdapter}
 	 *
-	 * @param moshi {@link Moshi}
 	 * @param type  Bean类型
 	 * @return this
 	 */
-	private JsonAdapter<Object> getAdapter(final Moshi moshi, final Type type) {
+	private JsonAdapter<Object> getAdapter(final Type type) {
 		initEngine();
 		JsonAdapter<Object> adapter = this.moshi.adapter(type);
 		if (ObjUtil.defaultIfNull(this.config, JSONEngineConfig::isPrettyPrint, false)) {

hutool-json/src/main/java/org/dromara/hutool/json/serializer/impl/DefaultDeserializer.java

@@ -39,7 +39,7 @@ public class DefaultDeserializer implements JSONDeserializer<Object> {
 	public Object deserialize(final JSON json, final Type deserializeType) {
 		// 当目标类型不确定时，返回原JSON
 		final Class<?> rawType = TypeUtil.getClass(deserializeType);
-		if (null == rawType || Object.class == rawType || rawType == json.getClass()) {
+		if (null == rawType || Object.class == rawType || rawType.isAssignableFrom(json.getClass())) {
 			return json;
 		}
 

hutool-json/src/test/java/org/dromara/hutool/json/jmh/FromJsonStringStrJmh.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2024 Hutool Team and hutool.cn
+ *
+ * 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 org.dromara.hutool.json.jmh;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.google.gson.JsonElement;
+import org.dromara.hutool.json.JSON;
+import org.dromara.hutool.json.engine.JSONEngine;
+import org.dromara.hutool.json.engine.JSONEngineFactory;
+import org.openjdk.jmh.annotations.*;
+
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)//每次执行平均花费时间
+@Warmup(iterations = 5, time = 1) //预热5次调用
+@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) // 执行5此，每次1秒
+@Threads(1) //单线程
+@Fork(1) //
+@OutputTimeUnit(TimeUnit.NANOSECONDS) // 单位：纳秒
+@State(Scope.Benchmark) // 共享域
+public class FromJsonStringStrJmh {
+
+	private JSONEngine jacksonEngine;
+	private JSONEngine gsonEngine;
+	private JSONEngine fastJSONEngine;
+	private JSONEngine hutoolEngine;
+
+	private String jsonStr;
+
+	@Setup
+	public void setup() {
+		jsonStr = "{\"name\":\"张三\",\"age\":18,\"birthday\":\"2020-01-01\"}";
+
+		jacksonEngine = JSONEngineFactory.createEngine("jackson");
+		gsonEngine = JSONEngineFactory.createEngine("gson");
+		fastJSONEngine = JSONEngineFactory.createEngine("fastjson");
+		hutoolEngine = JSONEngineFactory.createEngine("hutool");
+	}
+
+	@Benchmark
+	public void jacksonJmh() {
+		jacksonEngine.fromJsonString(jsonStr, JsonNode.class);
+	}
+
+	@Benchmark
+	public void gsonJmh() {
+		gsonEngine.fromJsonString(jsonStr, JsonElement.class);
+	}
+
+	@Benchmark
+	public void fastJSONJmh() {
+		fastJSONEngine.fromJsonString(jsonStr, com.alibaba.fastjson2.JSON.class);
+	}
+
+	@Benchmark
+	public void hutoolJSONJmh() {
+		hutoolEngine.fromJsonString(jsonStr, JSON.class);
+	}
+}