package org.sxkj.common.handler;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;

import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

public class CustomFastjsonTypeHandler extends BaseTypeHandler<List<Object>> {

	@Override
	public void setNonNullParameter(PreparedStatement ps, int i,
									List<Object> parameter, JdbcType jdbcType) throws SQLException {
		String json = JSON.toJSONString(parameter, SerializerFeature.WriteMapNullValue);
		ps.setString(i, json); // 使用setString而非setObject
	}

	@Override
	public List<Object> getNullableResult(ResultSet rs, String columnName) throws SQLException {
		String json = rs.getString(columnName);
		return json == null ? null : JSON.parseArray(json, Object.class);
	}

	@Override
	public List<Object> getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
		String json = rs.getString(columnIndex);
		return json == null ? null : JSON.parseArray(json, Object.class);
	}

	@Override
	public List<Object> getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
		String json = cs.getString(columnIndex);
		return json == null ? null : JSON.parseArray(json, Object.class);
	}

}