package cn.shlanbao.qms.handle;

import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.MappedJdbcTypes;
import org.apache.ibatis.type.MappedTypes;
import org.apache.ibatis.type.TypeHandler;
@MappedJdbcTypes(JdbcType.VARCHAR)
@MappedTypes(String.class)
public class CustomEncodingTypeHandler implements TypeHandler<String> {
    @Override
    public void setParameter(PreparedStatement ps, int i, String parameter, JdbcType jdbcType) throws SQLException {
        // 一般用于插入或更新操作，这里可能不需要特殊编码设置
        ps.setString(i, parameter);
    }
    @Override
    public String getResult(ResultSet rs, String columnName) throws SQLException {
        String value = rs.getString(columnName);
        try {
            // 假设数据是GB2312编码，将其转换为UTF - 8
            byte[] gb2312Bytes = value.getBytes("ISO-8859-1");
            return new String(gb2312Bytes, "GB2312");
        } catch (Exception e) {
            return value;
        }
    }
    @Override
    public String getResult(ResultSet rs, int columnIndex) throws SQLException {
        String value = rs.getString(columnIndex);
        try {
            // 假设数据是GB2312编码，将其转换为UTF - 8
            byte[] gb2312Bytes = value.getBytes("ISO-8859-1");
            return new String(gb2312Bytes, "GB2312");
        } catch (Exception e) {
            return value;
        }
    }
    @Override
    public String getResult(CallableStatement cs, int columnIndex) throws SQLException {
        String value = cs.getString(columnIndex);
        try {
            // 假设数据是GB2312编码，将其转换为UTF - 8
            byte[] gb2312Bytes = value.getBytes("ISO-8859-1");
            return new String(gb2312Bytes, "GB2312");
        } catch (Exception e) {
            return value;
        }
    }
}