add methods

hutool-json/src/test/java/org/dromara/hutool/json/JSONArrayTest.java

@@ -300,7 +300,7 @@ public class JSONArrayTest {
 	@Test
 	public void putNullTest() {
 		final JSONArray array = JSONUtil.ofArray(JSONConfig.of().setIgnoreNullValue(false));
-		array.addValue(null);
+		array.addNull();
 
 		assertEquals("[null]", array.toString());
 	}

hutool-json/src/test/java/org/dromara/hutool/json/JSONNullTest.java

@@ -51,22 +51,22 @@ public class JSONNullTest {
 	@Test
 	public void setNullTest(){
 		// 忽略null
-		String json1 = JSONUtil.ofObj().putValue("key1", null).toString();
+		String json1 = JSONUtil.ofObj().putNull("key1").toString();
 		Assertions.assertEquals("{}", json1);
 
 		// 不忽略null
-		json1 = JSONUtil.ofObj(JSONConfig.of().setIgnoreNullValue(false)).putValue("key1", null).toString();
+		json1 = JSONUtil.ofObj(JSONConfig.of().setIgnoreNullValue(false)).putNull("key1").toString();
 		Assertions.assertEquals("{\"key1\":null}", json1);
 	}
 
 	@Test
 	public void setNullOfJSONArrayTest(){
 		// 忽略null
-		String json1 = JSONUtil.ofArray().addValue(null).toString();
+		String json1 = JSONUtil.ofArray().addNull().toString();
 		Assertions.assertEquals("[]", json1);
 
 		// 不忽略null
-		json1 = JSONUtil.ofArray(JSONConfig.of().setIgnoreNullValue(false)).addValue(null).toString();
+		json1 = JSONUtil.ofArray(JSONConfig.of().setIgnoreNullValue(false)).addNull().toString();
 		Assertions.assertEquals("[null]", json1);
 	}
 }

hutool-json/src/test/java/org/dromara/hutool/json/JSONObjectTest.java

@@ -730,7 +730,7 @@ public class JSONObjectTest {
 	@Test
 	public void nullToEmptyTest() {
 		final JSONObject json1 = JSONUtil.ofObj(JSONConfig.of().setIgnoreNullValue(false))
-				.putValue("a", null)
+				.putNull("a")
 				.putValue("b", "value2");
 
 		final String s = json1.toJSONString(0, (pair) -> {

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

@@ -0,0 +1,70 @@
+package org.dromara.hutool.json.jmh;
+
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.JsonNodeFactory;
+import com.google.gson.JsonArray;
+import org.dromara.hutool.core.lang.Console;
+import org.dromara.hutool.core.util.RandomUtil;
+import org.dromara.hutool.json.JSONArray;
+import org.openjdk.jmh.annotations.*;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 测试JSON树结构转JSON字符串性能
+ */
+@BenchmarkMode(Mode.AverageTime)//每次执行平均花费时间
+@Warmup(iterations = 1, time = 1) //预热5次调用
+@Measurement(iterations = 1, 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 JsonAddJmh {
+
+	List<String> testData;
+	private JSONArray hutoolJSON;
+	private JsonArray gson;
+	private com.alibaba.fastjson2.JSONArray fastJSON;
+	private ArrayNode jackson;
+
+
+	@Setup
+	public void setup() {
+		Console.log("准备数据。。。");
+		testData = new ArrayList<>(10);
+		for (int i = 0; i < 10; i++) {
+			testData.add(RandomUtil.randomString(20));
+		}
+
+		hutoolJSON = new JSONArray();
+		gson = new JsonArray();
+		fastJSON = new com.alibaba.fastjson2.JSONArray();
+		jackson = JsonNodeFactory.instance.arrayNode();
+		Console.log("数据完毕");
+	}
+
+	@Benchmark
+	public void gsonJmh() {
+		testData.forEach(gson::add);
+	}
+
+	@Benchmark
+	public void hutoolJmh() {
+		testData.forEach(hutoolJSON::addValue);
+		//hutoolJSON.putAllObj(testData);
+	}
+
+	@SuppressWarnings("UseBulkOperation")
+	@Benchmark
+	public void fastJSONJmh() {
+		testData.forEach(fastJSON::add);
+	}
+
+	@Benchmark
+	public void jacksonJmh(){
+		testData.forEach(jackson::add);
+	}
+}

hutool-json/src/test/java/org/dromara/hutool/json/serializer/JSONMapperTest.java

@@ -0,0 +1,39 @@
+package org.dromara.hutool.json.serializer;
+
+import org.dromara.hutool.core.date.DateUtil;
+import org.dromara.hutool.core.date.StopWatch;
+import org.dromara.hutool.core.lang.Console;
+import org.dromara.hutool.json.JSONFactory;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+public class JSONMapperTest {
+
+	/**
+	 * Mapper性能耗费较多
+	 */
+	@Test
+	@Disabled
+	void toJSONTest() {
+		final JSONFactory factory = JSONFactory.getInstance();
+
+		final JSONMapper mapper = factory.getMapper();
+
+		final StopWatch stopWatch = DateUtil.createStopWatch();
+
+		final int count = 1000;
+		stopWatch.start("use mapper");
+		for (int i = 0; i < count; i++) {
+			mapper.toJSON("qbw123", false);
+		}
+		stopWatch.stop();
+
+		stopWatch.start("use ofPrimitive");
+		for (int i = 0; i < count; i++) {
+			factory.ofPrimitive("qbw123");
+		}
+		stopWatch.stop();
+
+		Console.log(stopWatch.prettyPrint());
+	}
+}