JDBCTemplate/NamedParameterJdbcTemplate无法插入FileItem/Blob

Question

我有一个将FileItem fileItem插入到BLOB列的普通PreparedStatement：

ps.setBinaryStream(1, fileItem.getInputStream(), (int) fileItem.getSize());

我可以在NamedParameterJdbcTemplate中输入FileItem的问题

我试着用Types.BLOB

MapSqlParameterSource paramSource = new MapSqlParameterSource();
paramSource.addValue("blob",  fileItem.getInputStream(), Types.BLOB);
jdbcTemplate.update(INSERT_FILE, paramSource);

但得到了异常

SQL state [99999]; error code [17004]; Invalid column type; nested exception is java.sql.SQLException: Invalid column type

Caused by: java.sql.SQLException: Invalid column type
    at oracle.jdbc.driver.OraclePreparedStatement.setObjectCritical(OraclePreparedStatement.java:10503)
    at oracle.jdbc.driver.OraclePreparedStatement.setObjectInternal(OraclePreparedStatement.java:9974)
    at oracle.jdbc.driver.OraclePreparedStatement.setObject(OraclePreparedStatement.java:10581)
    at oracle.jdbc.driver.OraclePreparedStatementWrapper.setObject(OraclePreparedStatementWrapper.java:249)
    at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.setObject(HikariProxyPreparedStatement.java)
    at org.springframework.jdbc.core.StatementCreatorUtils.setValue(StatementCreatorUtils.java:469)
    at org.springframework.jdbc.core.StatementCreatorUtils.setParameterValueInternal(StatementCreatorUtils.java:241)
    at org.springframework.jdbc.core.StatementCreatorUtils.setParameterValue(StatementCreatorUtils.java:156)
    at org.springframework.jdbc.core.PreparedStatementCreatorFactory$PreparedStatementCreatorImpl.setValues(PreparedStatementCreatorFactory.java:292)
    at org.springframework.jdbc.core.PreparedStatementCreatorFactory$PreparedStatementCreatorImpl.createPreparedStatement(PreparedStatementCreatorFactory.java:244)
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:633)

与带有参数BLOB file的jdbcTemplate相同的错误

jdbcTemplate.update(INSERT_FILE, file);

使用与File和InputStream不同的参数类似地失败

我正在尝试保存一个(二进制)图像文件

Answer 1

只有当我将参数类型更改为byte[]时，它才起作用

 byte[] blob

并在insert中使用它：

jdbcTemplate.update(INSERT_FILE, blob);