diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/update/ModifyAttrsRecordProxyFactory.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/update/ModifyAttrsRecordProxyFactory.java
index 29d65d6f..e96fe126 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/update/ModifyAttrsRecordProxyFactory.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/update/ModifyAttrsRecordProxyFactory.java
@@ -15,6 +15,7 @@
  */
 package com.mybatisflex.core.update;
 
+import com.mybatisflex.core.util.ClassUtil;
 import org.apache.ibatis.javassist.util.proxy.ProxyFactory;
 import org.apache.ibatis.javassist.util.proxy.ProxyObject;
 import org.apache.ibatis.logging.LogFactory;
@@ -22,6 +23,9 @@ import org.apache.ibatis.logging.LogFactory;
 import java.util.Arrays;
 
 
+/**
+ * @author michael
+ */
 public class ModifyAttrsRecordProxyFactory {
 
     private static final ModifyAttrsRecordProxyFactory instance = new ModifyAttrsRecordProxyFactory();
@@ -41,14 +45,13 @@ public class ModifyAttrsRecordProxyFactory {
         interfaces[interfaces.length - 1] = UpdateWrapper.class;
         factory.setInterfaces(interfaces);
 
-
         final Class<?> proxyClass = factory.createClass();
 
         T proxyObject = null;
         try {
-            proxyObject = (T) proxyClass.newInstance();
+            proxyObject = (T) ClassUtil.newInstance(proxyClass);
             ((ProxyObject) proxyObject).setHandler(new ModifyAttrsRecordHandler());
-        } catch (Throwable e) {
+        } catch (Exception e){
             LogFactory.getLog(ModifyAttrsRecordProxyFactory.class).error(e.toString(), e);
         }
 
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ClassUtil.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ClassUtil.java
index 98926274..266d9901 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ClassUtil.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/util/ClassUtil.java
@@ -118,7 +118,7 @@ public class ClassUtil {
 
             Constructor<?>[] declaredConstructors = clazz.getDeclaredConstructors();
             for (Constructor<?> constructor : declaredConstructors) {
-                if (constructor.getParameterCount() == 0) {
+                if (constructor.getParameterCount() == 0 && Modifier.isPublic(constructor.getModifiers())) {
                     defaultConstructor = constructor;
                 } else if (Modifier.isPublic(constructor.getModifiers())) {
                     otherConstructor = constructor;
diff --git a/mybatis-flex-test/mybatis-flex-native-test/src/main/java/com/mybatisflex/test/MainSqlTest.java b/mybatis-flex-test/mybatis-flex-native-test/src/main/java/com/mybatisflex/test/MainSqlTest.java
index 0482590a..7760bb1f 100644
--- a/mybatis-flex-test/mybatis-flex-native-test/src/main/java/com/mybatisflex/test/MainSqlTest.java
+++ b/mybatis-flex-test/mybatis-flex-native-test/src/main/java/com/mybatisflex/test/MainSqlTest.java
@@ -2,6 +2,7 @@ package com.mybatisflex.test;
 
 import com.mybatisflex.core.FlexGlobalConfig;
 import com.mybatisflex.core.mybatis.FlexConfiguration;
+import com.mybatisflex.core.table.TableManager;
 import com.mybatisflex.core.update.UpdateChain;
 import com.mybatisflex.mapper.ArticleMapper;
 import com.zaxxer.hikari.HikariDataSource;
@@ -12,16 +13,25 @@ public class MainSqlTest {
 
     public static void main(String[] args) {
 
-        Environment environment = new Environment("test", new JdbcTransactionFactory(), new HikariDataSource());
 
-        FlexConfiguration configuration = new FlexConfiguration(environment);
+
+
         FlexGlobalConfig globalConfig = FlexGlobalConfig.getDefaultConfig();
+
+
+        Environment environment = new Environment("test", new JdbcTransactionFactory(), new HikariDataSource());
+        FlexConfiguration configuration = new FlexConfiguration(environment);
         globalConfig.setConfiguration(configuration);
         FlexGlobalConfig.setConfig("test", globalConfig, true);
 
+
         configuration.addMapper(ArticleMapper.class);
 
 
+
+
+
+
 //        ArticleMapper mapper = (ArticleMapper) Proxy.newProxyInstance(MainSqlTest.class.getClassLoader(),
 //            new Class[]{ArticleMapper.class}, new InvocationHandler() {
 //                @Override
@@ -38,6 +48,9 @@ public class MainSqlTest {
 //        System.out.println(sql1);
 
 
+        TableManager.setHintTableMapping("tb_article","tb_article1");
+
+
         String sql2 = UpdateChain.of(Article.class)
             .set("xxxx", "xxxx")
             .where(Article::getId).ge(100)