添加 ByteArrayTypeHandler

mybatis-plus-extension/src/main/java/com/baomidou/mybatisplus/extension/handlers/BlobTypeHandler.java

@@ -59,8 +59,7 @@ public class BlobTypeHandler extends BaseTypeHandler<String> {
     }
 
     @Override
-    public String getNullableResult(ResultSet rs, int columnIndex)
-        throws SQLException {
+    public String getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
         return null;
     }
 

mybatis-plus-extension/src/main/java/com/baomidou/mybatisplus/extension/handlers/ByteArrayTypeHandler.java

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2011-2020, hubin (jobob@qq.com).
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.baomidou.mybatisplus.extension.handlers;
+
+import java.sql.CallableStatement;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.apache.ibatis.type.BaseTypeHandler;
+import org.apache.ibatis.type.JdbcType;
+
+/**
+ * <p>
+ * Byte To byte[] 转换器
+ * </p>
+ *
+ * @author hubin
+ * @Date 2018-05-11
+ */
+public class ByteArrayTypeHandler extends BaseTypeHandler<byte[]> {
+
+    public ByteArrayTypeHandler() {
+        // to do nothing
+    }
+
+    @Override
+    public void setNonNullParameter(PreparedStatement ps, int i, byte[] parameter, JdbcType jdbcType) throws SQLException {
+        ps.setBytes(i, parameter);
+    }
+
+    @Override
+    public byte[] getNullableResult(ResultSet rs, String columnName) throws SQLException {
+        return rs.getBytes(columnName);
+    }
+
+    @Override
+    public byte[] getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
+        return rs.getBytes(columnIndex);
+    }
+
+    @Override
+    public byte[] getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
+        return cs.getBytes(columnIndex);
+    }
+}