diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/codec/PunyCodeTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/codec/PunyCodeTest.java
index c83713c2c..7663307f9 100644
--- a/hutool-core/src/test/java/org/dromara/hutool/core/codec/PunyCodeTest.java
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/codec/PunyCodeTest.java
@@ -19,8 +19,8 @@ public class PunyCodeTest {
 	@Test
 	public void encodeDecodeTest2(){
 		// 无需编码和解码
-		String text = "Hutool";
-		String strPunyCode = PunyCode.encode(text);
+		final String text = "Hutool";
+		final String strPunyCode = PunyCode.encode(text);
 		Assertions.assertEquals("Hutool", strPunyCode);
 	}
 
@@ -59,10 +59,10 @@ public class PunyCodeTest {
 
 	@Test
 	public void encodeEncodeDomainTest2(){
-		String domain = "赵新虎.com";
-		String strPunyCode = PunyCode.encodeDomain(domain);
+		final String domain = "赵新虎.com";
+		final String strPunyCode = PunyCode.encodeDomain(domain);
 		Assertions.assertEquals("xn--efvz93e52e.com", strPunyCode);
-		String decode = PunyCode.decodeDomain(strPunyCode);
+		final String decode = PunyCode.decodeDomain(strPunyCode);
 		Assertions.assertEquals(domain, decode);
 	}
 }
diff --git a/hutool-extra/src/main/java/org/dromara/hutool/extra/ftp/FtpConfig.java b/hutool-extra/src/main/java/org/dromara/hutool/extra/ftp/FtpConfig.java
index 7d24ded12..3fd911c45 100644
--- a/hutool-extra/src/main/java/org/dromara/hutool/extra/ftp/FtpConfig.java
+++ b/hutool-extra/src/main/java/org/dromara/hutool/extra/ftp/FtpConfig.java
@@ -23,6 +23,11 @@ import java.nio.charset.Charset;
 public class FtpConfig implements Serializable {
 	private static final long serialVersionUID = 1L;
 
+	/**
+	 * 创建默认配置
+	 *
+	 * @return FtpConfig
+	 */
 	public static FtpConfig of() {
 		return new FtpConfig();
 	}
@@ -77,11 +82,11 @@ public class FtpConfig implements Serializable {
 	/**
 	 * 构造
 	 *
-	 * @param host               主机
-	 * @param port               端口
-	 * @param user               用户名
-	 * @param password           密码
-	 * @param charset            编码
+	 * @param host     主机
+	 * @param port     端口
+	 * @param user     用户名
+	 * @param password 密码
+	 * @param charset  编码
 	 */
 	public FtpConfig(final String host, final int port, final String user, final String password, final Charset charset) {
 		this(host, port, user, password, charset, null, null);