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需要实现将Excel中的数字类型的单元格像数据库中字符串类型的字段中推送
问题原因
Seatunnel在读取字段类型的时候都是使用强转的形式去获取数据的 假如说数据类型不一样的话直接强转就会报错
修改位置
org/apache/seatunnel/api/table/type/SeaTunnelRow.java
org…需求
需要实现将Excel中的数字类型的单元格像数据库中字符串类型的字段中推送
问题原因
Seatunnel在读取字段类型的时候都是使用强转的形式去获取数据的 假如说数据类型不一样的话直接强转就会报错
修改位置
org/apache/seatunnel/api/table/type/SeaTunnelRow.java
org/apache/seatunnel/connectors/seatunnel/jdbc/internal/converter/AbstractJdbcRowConverter.java
修改的代码 Overridepublic PreparedStatement toExternal(TableSchema tableSchema, SeaTunnelRow row, PreparedStatement statement)throws SQLException {SeaTunnelRowType rowType tableSchema.toPhysicalRowDataType();for (int fieldIndex 0; fieldIndex rowType.getTotalFields(); fieldIndex) {SeaTunnelDataType? seaTunnelDataType rowType.getFieldType(fieldIndex);int statementIndex fieldIndex 1;Object fieldValue row.getField(fieldIndex);if (fieldValue null) {statement.setObject(statementIndex, null);continue;}switch (seaTunnelDataType.getSqlType()) {case STRING://TODO wxt//regiontry{//直接类型强转会出问题 比如double类型就不能转成String// 可以使用下面的toString解决这种类型问题statement.setString(statementIndex, (String) row.getField(fieldIndex));}catch (Exception e){statement.setString(statementIndex, row.getField(fieldIndex).toString());}//endregionbreak;case BOOLEAN:statement.setBoolean(statementIndex, (Boolean) row.getField(fieldIndex));break;case TINYINT:statement.setByte(statementIndex, (Byte) row.getField(fieldIndex));break;case SMALLINT:statement.setShort(statementIndex, (Short) row.getField(fieldIndex));break;case INT:statement.setInt(statementIndex, (Integer) row.getField(fieldIndex));break;case BIGINT:statement.setLong(statementIndex, (Long) row.getField(fieldIndex));break;case FLOAT:statement.setFloat(statementIndex, (Float) row.getField(fieldIndex));break;case DOUBLE:statement.setDouble(statementIndex, (Double) row.getField(fieldIndex));break;case DECIMAL:statement.setBigDecimal(statementIndex, (BigDecimal) row.getField(fieldIndex));break;case DATE:LocalDate localDate (LocalDate) row.getField(fieldIndex);statement.setDate(statementIndex, java.sql.Date.valueOf(localDate));break;case TIME:writeTime(statement, statementIndex, (LocalTime) row.getField(fieldIndex));break;case TIMESTAMP:LocalDateTime localDateTime (LocalDateTime) row.getField(fieldIndex);statement.setTimestamp(statementIndex, java.sql.Timestamp.valueOf(localDateTime));break;case BYTES:statement.setBytes(statementIndex, (byte[]) row.getField(fieldIndex));break;case NULL:statement.setNull(statementIndex, java.sql.Types.NULL);break;case ARRAY:Object[] array (Object[]) row.getField(fieldIndex);if (array null) {statement.setNull(statementIndex, java.sql.Types.ARRAY);break;}statement.setObject(statementIndex, array);break;case MAP:case ROW:default:throw new JdbcConnectorException(CommonErrorCodeDeprecated.UNSUPPORTED_DATA_TYPE,Unexpected value: seaTunnelDataType);}}return statement;}private int getBytesForValue(Object v, SeaTunnelDataType? dataType) {if (v null) {return 0;}SqlType sqlType dataType.getSqlType();switch (sqlType) {case STRING://region//TODO 避免强转出现问题try{return ((String) v).length();}catch (Exception e){return ( v.toString()).length();}//endregioncase BOOLEAN:case TINYINT:return 1;case SMALLINT:return 2;case INT:case FLOAT:return 4;case BIGINT:case DOUBLE:return 8;case DECIMAL:return 36;case NULL:return 0;case BYTES:return ((byte[]) v).length;case DATE:return 24;case TIME:return 12;case TIMESTAMP:return 48;case ARRAY:return getBytesForArray(v, ((ArrayType) dataType).getElementType());case MAP:int size 0;MapType?, ? mapType ((MapType?, ?) dataType);for (Map.Entry?, ? entry : ((Map?, ?) v).entrySet()) {size getBytesForValue(entry.getKey(), mapType.getKeyType()) getBytesForValue(entry.getValue(), mapType.getValueType());}return size;case ROW:int rowSize 0;SeaTunnelRowType rowType ((SeaTunnelRowType) dataType);SeaTunnelDataType?[] types rowType.getFieldTypes();SeaTunnelRow row (SeaTunnelRow) v;for (int i 0; i types.length; i) {rowSize getBytesForValue(row.fields[i], types[i]);}return rowSize;default:throw new UnsupportedOperationException(Unsupported type: sqlType);}}如何源码打包
用maven插件打包就行 打完包的话东西在dist下面 如截图所示
