diff --git a/hutool-db/src/main/java/cn/hutool/db/meta/MetaUtil.java b/hutool-db/src/main/java/cn/hutool/db/meta/MetaUtil.java
index bb151db76..f1ecafa83 100755
--- a/hutool-db/src/main/java/cn/hutool/db/meta/MetaUtil.java
+++ b/hutool-db/src/main/java/cn/hutool/db/meta/MetaUtil.java
@@ -82,13 +82,13 @@ public class MetaUtil {
 			conn = ds.getConnection();
 
 			// catalog和schema获取失败默认使用null代替
-			String catalog = getCatalog(conn);
+			final String catalog = getCatalog(conn);
 			if (null == schema) {
 				schema = getSchema(conn);
 			}
 
 			final DatabaseMetaData metaData = conn.getMetaData();
-			try (ResultSet rs = metaData.getTables(catalog, schema, tableName, Convert.toStrArray(types))) {
+			try (final ResultSet rs = metaData.getTables(catalog, schema, tableName, Convert.toStrArray(types))) {
 				if (null != rs) {
 					String table;
 					while (rs.next()) {
@@ -116,9 +116,9 @@ public class MetaUtil {
 	 */
 	public static String[] getColumnNames(ResultSet rs) throws DbRuntimeException {
 		try {
-			ResultSetMetaData rsmd = rs.getMetaData();
-			int columnCount = rsmd.getColumnCount();
-			String[] labelNames = new String[columnCount];
+			final ResultSetMetaData rsmd = rs.getMetaData();
+			final int columnCount = rsmd.getColumnCount();
+			final String[] labelNames = new String[columnCount];
 			for (int i = 0; i < labelNames.length; i++) {
 				labelNames[i] = rsmd.getColumnLabel(i + 1);
 			}
@@ -137,17 +137,17 @@ public class MetaUtil {
 	 * @throws DbRuntimeException SQL执行异常
 	 */
 	public static String[] getColumnNames(DataSource ds, String tableName) {
-		List<String> columnNames = new ArrayList<>();
+		final List<String> columnNames = new ArrayList<>();
 		Connection conn = null;
 		try {
 			conn = ds.getConnection();
 
 			// catalog和schema获取失败默认使用null代替
-			String catalog = getCatalog(conn);
-			String schema = getSchema(conn);
+			final String catalog = getCatalog(conn);
+			final String schema = getSchema(conn);
 
 			final DatabaseMetaData metaData = conn.getMetaData();
-			try (ResultSet rs = metaData.getColumns(catalog, schema, tableName, null)) {
+			try (final ResultSet rs = metaData.getColumns(catalog, schema, tableName, null)) {
 				if (null != rs) {
 					while (rs.next()) {
 						columnNames.add(rs.getString("COLUMN_NAME"));
@@ -225,7 +225,7 @@ public class MetaUtil {
 			final DatabaseMetaData metaData = conn.getMetaData();
 
 			// 获得表元数据（表注释）
-			try (ResultSet rs = metaData.getTables(catalog, schema, tableName, new String[]{TableType.TABLE.value()})) {
+			try (final ResultSet rs = metaData.getTables(catalog, schema, tableName, new String[]{TableType.TABLE.value()})) {
 				if (null != rs) {
 					if (rs.next()) {
 						table.setComment(rs.getString("REMARKS"));
@@ -234,7 +234,7 @@ public class MetaUtil {
 			}
 
 			// 获得主键
-			try (ResultSet rs = metaData.getPrimaryKeys(catalog, schema, tableName)) {
+			try (final ResultSet rs = metaData.getPrimaryKeys(catalog, schema, tableName)) {
 				if (null != rs) {
 					while (rs.next()) {
 						table.addPk(rs.getString("COLUMN_NAME"));
@@ -243,7 +243,7 @@ public class MetaUtil {
 			}
 
 			// 获得列
-			try (ResultSet rs = metaData.getColumns(catalog, schema, tableName, null)) {
+			try (final ResultSet rs = metaData.getColumns(catalog, schema, tableName, null)) {
 				if (null != rs) {
 					while (rs.next()) {
 						table.setColumn(Column.create(table, rs));
@@ -252,7 +252,7 @@ public class MetaUtil {
 			}
 
 			// 获得索引信息(since 5.7.23)
-			try (ResultSet rs = metaData.getIndexInfo(catalog, schema, tableName, false, false)) {
+			try (final ResultSet rs = metaData.getIndexInfo(catalog, schema, tableName, false, false)) {
 				final Map<String, IndexInfo> indexInfoMap = new LinkedHashMap<>();
 				if (null != rs) {
 					while (rs.next()) {
diff --git a/hutool-db/src/test/java/cn/hutool/db/meta/MetaUtilTest.java b/hutool-db/src/test/java/cn/hutool/db/meta/MetaUtilTest.java
index 0abd88676..d9ece6a58 100644
--- a/hutool-db/src/test/java/cn/hutool/db/meta/MetaUtilTest.java
+++ b/hutool-db/src/test/java/cn/hutool/db/meta/MetaUtilTest.java
@@ -2,6 +2,7 @@ package cn.hutool.db.meta;
 
 import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.util.StrUtil;
+import cn.hutool.db.DbRuntimeException;
 import cn.hutool.db.ds.DSFactory;
 import org.junit.Assert;
 import org.junit.Test;
@@ -20,25 +21,34 @@ public class MetaUtilTest {
 
 	@Test
 	public void getTablesTest() {
-		List<String> tables = MetaUtil.getTables(ds);
+		final List<String> tables = MetaUtil.getTables(ds);
 		Assert.assertEquals("user", tables.get(0));
 	}
 
 	@Test
 	public void getTableMetaTest() {
-		Table table = MetaUtil.getTableMeta(ds, "user");
+		final Table table = MetaUtil.getTableMeta(ds, "user");
 		Assert.assertEquals(CollectionUtil.newHashSet("id"), table.getPkNames());
 	}
 
 	@Test
 	public void getColumnNamesTest() {
-		String[] names = MetaUtil.getColumnNames(ds, "user");
+		final String[] names = MetaUtil.getColumnNames(ds, "user");
 		Assert.assertArrayEquals(StrUtil.splitToArray("id,name,age,birthday,gender", ','), names);
 	}
 
 	@Test
 	public void getTableIndexInfoTest() {
-		Table table = MetaUtil.getTableMeta(ds, "user_1");
+		final Table table = MetaUtil.getTableMeta(ds, "user_1");
+		Assert.assertEquals(table.getIndexInfoList().size(), 2);
+	}
+
+	/**
+	 * 表不存在抛出异常。
+	 */
+	@Test(expected = DbRuntimeException.class)
+	public void getTableNotExistTest() {
+		final Table table = MetaUtil.getTableMeta(ds, "user_not_exist");
 		Assert.assertEquals(table.getIndexInfoList().size(), 2);
 	}
 }
diff --git a/hutool-dfa/src/main/java/cn/hutool/dfa/SensitiveUtil.java b/hutool-dfa/src/main/java/cn/hutool/dfa/SensitiveUtil.java
index bcf81a784..ba8507cff 100755
--- a/hutool-dfa/src/main/java/cn/hutool/dfa/SensitiveUtil.java
+++ b/hutool-dfa/src/main/java/cn/hutool/dfa/SensitiveUtil.java
@@ -194,7 +194,7 @@ public final class SensitiveUtil {
 	 * @return 敏感词过滤处理后的bean对象
 	 */
 	public static <T> T sensitiveFilter(T bean, boolean isGreedMatch, SensitiveProcessor sensitiveProcessor) {
-		String jsonText = JSONUtil.toJsonStr(bean);
+		final String jsonText = JSONUtil.toJsonStr(bean);
 		@SuppressWarnings("unchecked") final Class<T> c = (Class<T>) bean.getClass();
 		return JSONUtil.toBean(sensitiveFilter(jsonText, isGreedMatch, sensitiveProcessor), c);
 	}
@@ -224,7 +224,7 @@ public final class SensitiveUtil {
 		}
 
 		//敏感词过滤场景下，不需要密集匹配
-		List<FoundWord> foundWordList = getFoundAllSensitive(text, true, isGreedMatch);
+		final List<FoundWord> foundWordList = getFoundAllSensitive(text, true, isGreedMatch);
 		if (CollUtil.isEmpty(foundWordList)) {
 			return text;
 		}
@@ -233,10 +233,10 @@ public final class SensitiveUtil {
 
 		final Map<Integer, FoundWord> foundWordMap = new HashMap<>(foundWordList.size(), 1);
 		foundWordList.forEach(foundWord -> foundWordMap.put(foundWord.getStartIndex(), foundWord));
-		int length = text.length();
-		StringBuilder textStringBuilder = new StringBuilder();
+		final int length = text.length();
+		final StringBuilder textStringBuilder = new StringBuilder();
 		for (int i = 0; i < length; i++) {
-			FoundWord fw = foundWordMap.get(i);
+			final FoundWord fw = foundWordMap.get(i);
 			if (fw != null) {
 				textStringBuilder.append(sensitiveProcessor.process(fw));
 				i = fw.getEndIndex();