修改JSON的过滤接口，实现多层过滤

hutool-json/src/main/java/cn/hutool/json/JSON.java

@@ -1,12 +1,14 @@
 package cn.hutool.json;
 
 import cn.hutool.core.bean.BeanPath;
+import cn.hutool.core.lang.mutable.MutableEntry;
 import cn.hutool.json.convert.JSONConverterOld;
 
 import java.io.Serializable;
 import java.io.StringWriter;
 import java.io.Writer;
 import java.lang.reflect.Type;
+import java.util.function.Predicate;
 
 /**
  * JSON接口
@@ -23,6 +25,13 @@ public interface JSON extends Cloneable, Serializable {
 	 */
 	JSONConfig getConfig();
 
+	/**
+	 * JSON大小，对于JSONObject，是键值对的多少，JSONArray则是元素的个数
+	 *
+	 * @return 大小
+	 */
+	int size();
+
 	/**
 	 * 通过表达式获取JSON中嵌套的对象<br>
 	 * <ol>
@@ -44,7 +53,7 @@ public interface JSON extends Cloneable, Serializable {
 	 * @see BeanPath#get(Object)
 	 * @since 4.0.6
 	 */
-	default Object getByPath(final String expression){
+	default Object getByPath(final String expression) {
 		return BeanPath.of(expression).get(this);
 	}
 
@@ -69,7 +78,7 @@ public interface JSON extends Cloneable, Serializable {
 	 * @param expression 表达式
 	 * @param value      值
 	 */
-	default void putByPath(final String expression, final Object value){
+	default void putByPath(final String expression, final Object value) {
 		BeanPath.of(expression).set(this, value);
 	}
 
@@ -121,7 +130,7 @@ public interface JSON extends Cloneable, Serializable {
 	default String toJSONString(final int indentFactor) throws JSONException {
 		final StringWriter sw = new StringWriter();
 		synchronized (sw.getBuffer()) {
-			return this.write(sw, indentFactor, 0).toString();
+			return this.write(sw, indentFactor, 0, null).toString();
 		}
 	}
 
@@ -134,7 +143,7 @@ public interface JSON extends Cloneable, Serializable {
 	 * @throws JSONException JSON相关异常
 	 */
 	default Writer write(final Writer writer) throws JSONException {
-		return this.write(writer, 0, 0);
+		return this.write(writer, 0, 0, null);
 	}
 
 	/**
@@ -144,10 +153,11 @@ public interface JSON extends Cloneable, Serializable {
 	 * @param writer       writer
 	 * @param indentFactor 缩进因子，定义每一级别增加的缩进量
 	 * @param indent       本级别缩进量
+	 * @param predicate    过滤器，可以修改值，key（index）无法修改，{@link Predicate#test(Object)}为{@code true}保留
 	 * @return Writer
 	 * @throws JSONException JSON相关异常
 	 */
-	Writer write(Writer writer, int indentFactor, int indent) throws JSONException;
+	Writer write(Writer writer, int indentFactor, int indent, final Predicate<MutableEntry<Object, Object>> predicate) throws JSONException;
 
 	/**
 	 * 转为实体类对象，转换异常将被抛出
@@ -163,8 +173,8 @@ public interface JSON extends Cloneable, Serializable {
 	/**
 	 * 转为实体类对象
 	 *
-	 * @param <T>         Bean类型
-	 * @param type        {@link Type}
+	 * @param <T>  Bean类型
+	 * @param type {@link Type}
 	 * @return 实体类对象
 	 * @since 4.3.2
 	 */

hutool-json/src/main/java/cn/hutool/json/JSONArray.java

@@ -533,7 +533,7 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 	 * @return JSON字符串
 	 * @since 5.7.15
 	 */
-	public String toJSONString(final int indentFactor, final Predicate<MutableEntry<Integer, Object>> predicate) {
+	public String toJSONString(final int indentFactor, final Predicate<MutableEntry<Object, Object>> predicate) {
 		final StringWriter sw = new StringWriter();
 		synchronized (sw.getBuffer()) {
 			return this.write(sw, indentFactor, 0, predicate).toString();
@@ -541,32 +541,10 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 	}
 
 	@Override
-	public Writer write(final Writer writer, final int indentFactor, final int indent) throws JSONException {
-		return write(writer, indentFactor, indent, null);
-	}
+	public Writer write(final Writer writer, final int indentFactor, final int indent, final Predicate<MutableEntry<Object, Object>> predicate) throws JSONException {
+		final JSONWriter jsonWriter = JSONWriter.of(writer, indentFactor, indent, config).beginArray();
 
-	/**
-	 * 将JSON内容写入Writer<br>
-	 * 支持过滤器，即选择哪些字段或值不写出
-	 *
-	 * @param writer       writer
-	 * @param indentFactor 缩进因子，定义每一级别增加的缩进量
-	 * @param indent       本级别缩进量
-	 * @param predicate    过滤器，可以修改值，key（index）无法修改，{@link Predicate#test(Object)}为{@code true}保留
-	 * @return Writer
-	 * @throws JSONException JSON相关异常
-	 * @since 5.7.15
-	 */
-	public Writer write(final Writer writer, final int indentFactor, final int indent, final Predicate<MutableEntry<Integer, Object>> predicate) throws JSONException {
-		final JSONWriter jsonWriter = JSONWriter.of(writer, indentFactor, indent, config)
-				.beginArray();
-
-		CollUtil.forEach(this, (value, index) -> {
-			final MutableEntry<Integer, Object> pair = new MutableEntry<>(index, value);
-			if (null == predicate || predicate.test(pair)) {
-				jsonWriter.writeValue(pair.getValue());
-			}
-		});
+		CollUtil.forEach(this, (value, index) -> jsonWriter.writeField(new MutableEntry<>(index, value), predicate));
 		jsonWriter.end();
 		// 此处不关闭Writer，考虑writer后续还需要填内容
 		return writer;

hutool-json/src/main/java/cn/hutool/json/JSONObject.java

@@ -341,18 +341,13 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	 * @return JSON字符串
 	 * @since 5.7.15
 	 */
-	public String toJSONString(final int indentFactor, final Predicate<MutableEntry<String, Object>> predicate) {
+	public String toJSONString(final int indentFactor, final Predicate<MutableEntry<Object, Object>> predicate) {
 		final StringWriter sw = new StringWriter();
 		synchronized (sw.getBuffer()) {
 			return this.write(sw, indentFactor, 0, predicate).toString();
 		}
 	}
 
-	@Override
-	public Writer write(final Writer writer, final int indentFactor, final int indent) throws JSONException {
-		return write(writer, indentFactor, indent, null);
-	}
-
 	/**
 	 * 将JSON内容写入Writer<br>
 	 * 支持过滤器，即选择哪些字段或值不写出
@@ -365,20 +360,11 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	 * @throws JSONException JSON相关异常
 	 * @since 5.7.15
 	 */
-	public Writer write(final Writer writer, final int indentFactor, final int indent, final Predicate<MutableEntry<String, Object>> predicate) throws JSONException {
+	@Override
+	public Writer write(final Writer writer, final int indentFactor, final int indent, final Predicate<MutableEntry<Object, Object>> predicate) throws JSONException {
 		final JSONWriter jsonWriter = JSONWriter.of(writer, indentFactor, indent, config)
 				.beginObj();
-		this.forEach((key, value) -> {
-			if (null != predicate) {
-				final MutableEntry<String, Object> pair = new MutableEntry<>(key, value);
-				if (predicate.test(pair)) {
-					// 使用修改后的键值对
-					jsonWriter.writeField(pair.getKey(), pair.getValue());
-				}
-			} else {
-				jsonWriter.writeField(key, value);
-			}
-		});
+		this.forEach((key, value) -> jsonWriter.writeField(new MutableEntry<>(key, value), predicate));
 		jsonWriter.end();
 		// 此处不关闭Writer，考虑writer后续还需要填内容
 		return writer;

hutool-json/src/main/java/cn/hutool/json/JSONUtil.java

@@ -530,32 +530,6 @@ public class JSONUtil {
 		return (T) json.getByPath(expression);
 	}
 
-	/**
-	 * 设置表达式指定位置（或filed对应）的值<br>
-	 * 若表达式指向一个JSONArray则设置其坐标对应位置的值，若指向JSONObject则put对应key的值<br>
-	 * 注意：如果为JSONArray，则设置值得下标不能大于已有JSONArray的长度<br>
-	 * <ol>
-	 * <li>.表达式，可以获取Bean对象中的属性（字段）值或者Map中key对应的值</li>
-	 * <li>[]表达式，可以获取集合等对象中对应index的值</li>
-	 * </ol>
-	 * <p>
-	 * 表达式栗子：
-	 *
-	 * <pre>
-	 * persion
-	 * persion.name
-	 * persons[3]
-	 * person.friends[5].name
-	 * </pre>
-	 *
-	 * @param json       JSON，可以为JSONObject或JSONArray
-	 * @param expression 表达式
-	 * @param value      值
-	 */
-	public static void putByPath(final JSON json, final String expression, final Object value) {
-		json.putByPath(expression, value);
-	}
-
 	/**
 	 * 格式化JSON字符串，此方法并不严格检查JSON的格式正确与否
 	 *

hutool-json/src/main/java/cn/hutool/json/jwt/signers/AlgorithmUtil.java

@@ -23,6 +23,10 @@ public class AlgorithmUtil {
 		map.put("HS384", HmacAlgorithm.HmacSHA384.getValue());
 		map.put("HS512", HmacAlgorithm.HmacSHA512.getValue());
 
+		map.put("HMD5", HmacAlgorithm.HmacMD5.getValue());
+		map.put("HSHA1", HmacAlgorithm.HmacSHA1.getValue());
+		map.put("SM4CMAC", HmacAlgorithm.SM4CMAC.getValue());
+
 		map.put("RS256", SignAlgorithm.SHA256withRSA.getValue());
 		map.put("RS384", SignAlgorithm.SHA384withRSA.getValue());
 		map.put("RS512", SignAlgorithm.SHA512withRSA.getValue());
@@ -34,6 +38,14 @@ public class AlgorithmUtil {
 		map.put("PS256", SignAlgorithm.SHA256withRSA_PSS.getValue());
 		map.put("PS384", SignAlgorithm.SHA384withRSA_PSS.getValue());
 		map.put("PS512", SignAlgorithm.SHA512withRSA_PSS.getValue());
+
+		map.put("RMD2", SignAlgorithm.MD2withRSA.getValue());
+		map.put("RMD5", SignAlgorithm.MD5withRSA.getValue());
+		map.put("RSHA1", SignAlgorithm.SHA1withRSA.getValue());
+		map.put("DNONE", SignAlgorithm.NONEwithDSA.getValue());
+		map.put("DSHA1", SignAlgorithm.SHA1withDSA.getValue());
+		map.put("ENONE", SignAlgorithm.NONEwithECDSA.getValue());
+		map.put("ESHA1", SignAlgorithm.SHA1withECDSA.getValue());
 	}
 
 	/**

hutool-json/src/main/java/cn/hutool/json/jwt/signers/JWTSignerUtil.java

@@ -120,6 +120,106 @@ public class JWTSignerUtil {
 		return createSigner("ES512", key);
 	}
 
+	/**
+	 * HMD5(HmacMD5)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner hmd5(final Key key) {
+		return createSigner("HMD5",key);
+	}
+
+	/**
+	 * HSHA1(HmacSHA1)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner hsha1(final Key key) {
+		return createSigner("HSHA1",key);
+	}
+
+	/**
+	 * SM4CMAC(SM4CMAC)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner sm4cmac(final Key key) {
+		return createSigner("SM4CMAC",key);
+	}
+
+	/**
+	 * RMD2(MD2withRSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner rmd2(final Key key) {
+		return createSigner("RMD2",key);
+	}
+
+	/**
+	 * RMD5(MD5withRSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner rmd5(final Key key) {
+		return createSigner("RMD5",key);
+	}
+
+	/**
+	 * RSHA1(SHA1withRSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner rsha1(final Key key) {
+		return createSigner("RSHA1",key);
+	}
+
+	/**
+	 * DNONE(NONEwithDSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner dnone(final Key key) {
+		return createSigner("DNONE",key);
+	}
+
+	/**
+	 * DSHA1(SHA1withDSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner dsha1(final Key key) {
+		return createSigner("DSHA1",key);
+	}
+
+	/**
+	 * ENONE(NONEwithECDSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner enone(final Key key) {
+		return createSigner("ENONE",key);
+	}
+
+	/**
+	 * ESHA1(SHA1withECDSA)签名器
+	 *
+	 * @param key 密钥
+	 * @return 签名器
+	 */
+	public static JWTSigner esha1(final Key key) {
+		return createSigner("ESHA1",key);
+	}
+
 	/**
 	 * 创建签名器
 	 *

hutool-json/src/main/java/cn/hutool/json/serialize/JSONWriter.java

@@ -5,6 +5,7 @@ import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.date.TemporalAccessorUtil;
 import cn.hutool.core.date.format.GlobalCustomFormat;
 import cn.hutool.core.io.IORuntimeException;
+import cn.hutool.core.lang.mutable.MutableEntry;
 import cn.hutool.core.math.NumberUtil;
 import cn.hutool.core.text.StrUtil;
 import cn.hutool.core.util.CharUtil;
@@ -18,6 +19,7 @@ import java.io.Writer;
 import java.time.temporal.TemporalAccessor;
 import java.util.Calendar;
 import java.util.Date;
+import java.util.function.Predicate;
 
 /**
  * JSON数据写出器<br>
@@ -123,54 +125,56 @@ public class JSONWriter extends Writer {
 		return this;
 	}
 
+	/**
+	 * 写出字段名及字段值，如果字段值是{@code null}且忽略null值，则不写出任何内容<br>
+	 * 在{@link #arrayMode} 为 {@code true} 时，key是数字，此时不写出键，只写值
+	 *
+	 * @param pair      键值对
+	 * @param predicate 过滤修改器
+	 * @return this
+	 * @since 6.0.0
+	 */
+	@SuppressWarnings({"UnusedReturnValue", "resource"})
+	public JSONWriter writeField(final MutableEntry<Object, Object> pair, final Predicate<MutableEntry<Object, Object>> predicate) {
+		final Object value = pair.getValue();
+		if (null == value && config.isIgnoreNullValue()) {
+			return this;
+		}
+
+		if (null != predicate) {
+			if (false == predicate.test(pair)) {
+				// 使用修改后的键值对
+				return this;
+			}
+		}
+
+		final Object key = pair.getKey();
+		if(false == arrayMode){
+			// JSONObject模式，写出键，否则只输出值
+			writeKey(StrUtil.toString(key));
+		}
+
+		return writeValueDirect(value, predicate);
+	}
+
 	/**
 	 * 写出键，自动处理分隔符和缩进，并包装键名
 	 *
 	 * @param key 键名
 	 * @return this
 	 */
+	@SuppressWarnings({"resource", "UnusedReturnValue"})
 	public JSONWriter writeKey(final String key) {
 		if (needSeparator) {
 			//noinspection resource
 			writeRaw(CharUtil.COMMA);
 		}
 		// 换行缩进
-		//noinspection resource
 		writeLF().writeSpace(indentFactor + indent);
 		return writeRaw(InternalJSONUtil.quote(key));
 	}
 
-	/**
-	 * 写出值，自动处理分隔符和缩进，自动判断类型，并根据不同类型写出特定格式的值<br>
-	 * 如果写出的值为{@code null}，且配置忽略null，则跳过。
-	 *
-	 * @param value 值
-	 * @return this
-	 */
-	public JSONWriter writeValue(final Object value) {
-		if (null == value && config.isIgnoreNullValue()) {
-			return this;
-		}
-		return writeValueDirect(value);
-	}
-
-	/**
-	 * 写出字段名及字段值，如果字段值是{@code null}且忽略null值，则不写出任何内容
-	 *
-	 * @param key   字段名
-	 * @param value 字段值
-	 * @return this
-	 * @since 5.7.6
-	 */
-	public JSONWriter writeField(final String key, final Object value) {
-		if (null == value && config.isIgnoreNullValue()) {
-			return this;
-		}
-
-		//noinspection resource
-		return writeKey(key).writeValueDirect(value);
-	}
-
+	@SuppressWarnings({"SpellCheckingInspection", "NullableProblems"})
 	@Override
 	public void write(final char[] cbuf, final int off, final int len) throws IOException {
 		this.writer.write(cbuf, off, len);
@@ -195,10 +199,11 @@ public class JSONWriter extends Writer {
 	/**
 	 * 写出值，自动处理分隔符和缩进，自动判断类型，并根据不同类型写出特定格式的值
 	 *
-	 * @param value 值
+	 * @param value     值
+	 * @param predicate 过滤修改器
 	 * @return this
 	 */
-	private JSONWriter writeValueDirect(final Object value) {
+	private JSONWriter writeValueDirect(final Object value, final Predicate<MutableEntry<Object, Object>> predicate) {
 		if (arrayMode) {
 			if (needSeparator) {
 				//noinspection resource
@@ -212,22 +217,23 @@ public class JSONWriter extends Writer {
 			writeRaw(CharUtil.COLON).writeSpace(1);
 		}
 		needSeparator = true;
-		return writeObjValue(value);
+		return writeObjValue(value, predicate);
 	}
 
 	/**
 	 * 写出JSON的值，根据值类型不同，输出不同内容
 	 *
-	 * @param value 值
+	 * @param value     值
+	 * @param predicate 过滤修改器
 	 * @return this
 	 */
-	private JSONWriter writeObjValue(final Object value) {
+	private JSONWriter writeObjValue(final Object value, final Predicate<MutableEntry<Object, Object>> predicate) {
 		final int indent = indentFactor + this.indent;
 		if (value == null) {
 			//noinspection resource
 			writeRaw(StrUtil.NULL);
 		} else if (value instanceof JSON) {
-			((JSON) value).write(writer, indentFactor, indent);
+			((JSON) value).write(writer, indentFactor, indent, predicate);
 		} else if (value instanceof Number) {
 			writeNumberValue((Number) value);
 		} else if (value instanceof Date || value instanceof Calendar || value instanceof TemporalAccessor) {

hutool-json/src/test/java/cn/hutool/json/IssueI5OMSCTest.java

@@ -0,0 +1,26 @@
+package cn.hutool.json;
+
+import cn.hutool.core.collection.ListUtil;
+import cn.hutool.core.io.resource.ResourceUtil;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Predicate多层过滤
+ */
+public class IssueI5OMSCTest {
+
+	@Test
+	public void filterTest(){
+		final JSONObject json = JSONUtil.parseObj(ResourceUtil.readUtf8Str("issueI5OMSC.json"));
+
+		final String s = json.toJSONString(0, (entry) -> {
+			final Object key = entry.getKey();
+			if(key instanceof String){
+				return ListUtil.of("store", "bicycle", "color", "book", "author").contains(key);
+			}
+			return true;
+		});
+		Assert.assertEquals("{\"store\":{\"bicycle\":{\"color\":\"red\"},\"book\":[{\"author\":\"Evelyn Waugh\"},{\"author\":\"Evelyn Waugh02\"}]}}", s);
+	}
+}

hutool-json/src/test/java/cn/hutool/json/JSONObjectTest.java

@@ -700,7 +700,7 @@ public class JSONObjectTest {
 				.set("d", true);
 
 		final String s = json1.toJSONString(0, (pair) -> {
-			pair.setKey(StrUtil.toUnderlineCase(pair.getKey()));
+			pair.setKey(StrUtil.toUnderlineCase((String)pair.getKey()));
 			return true;
 		});
 		Assert.assertEquals("{\"a_key\":\"value1\",\"b_job\":\"value2\",\"c_good\":\"value3\",\"d\":true}", s);

hutool-json/src/test/java/cn/hutool/json/jwt/JWTSignerTest.java

@@ -116,6 +116,96 @@ public class JWTSignerTest {
 		signAndVerify(signer);
 	}
 
+	@Test
+	public void hmd5Test(){
+		final String id = "hmd5";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKey(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void hsha1Test(){
+		final String id = "hsha1";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKey(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void sm4cmacTest(){
+		final String id = "sm4cmac";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKey(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void rmd2Test(){
+		final String id = "rmd2";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void rmd5Test(){
+		final String id = "rmd5";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void rsha1Test(){
+		final String id = "rsha1";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void dnoneTest(){
+		final String id = "dnone";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void dsha1Test(){
+		final String id = "dsha1";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void enoneTest(){
+		final String id = "enone";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
+	@Test
+	public void esha1Test(){
+		final String id = "esha1";
+		final JWTSigner signer = JWTSignerUtil.createSigner(id, KeyUtil.generateKeyPair(AlgorithmUtil.getAlgorithm(id)));
+		Assert.assertEquals(AlgorithmUtil.getAlgorithm(id), signer.getAlgorithm());
+
+		signAndVerify(signer);
+	}
+
 	private static void signAndVerify(final JWTSigner signer){
 		final JWT jwt = JWT.of()
 				.setPayload("sub", "1234567890")

hutool-json/src/test/resources/issueI5OMSC.json

@@ -0,0 +1,32 @@
+{
+  "store": {
+    "bicycle": {
+      "color": "red",
+      "price": 19.95
+    },
+    "book": [
+      {
+        "category": "fiction",
+        "author": "Evelyn Waugh",
+        "title": "Sword of Honour",
+        "price": 12.99,
+        "items": [
+          {
+            "name": "wujing001",
+            "age": 18
+          },
+          {
+            "name": "wujing002",
+            "age": 18
+          }
+        ]
+      },
+      {
+        "category": "fiction02",
+        "author": "Evelyn Waugh02",
+        "title": "Sword of Honour02",
+        "price": 12.99
+      }
+    ]
+  }
+}