如何使用camel SQL组件和Oracle数据库插入blob [英] How to insert blob using camel SQL component with Oracle Database

问题描述

我尝试使用camel SQL组件插入输入流（ http：//camel.apache） .org / sql-component.html ）。

I am trying to insert an input stream using camel SQL component (http://camel.apache.org/sql-component.html).

我在Oracle数据库中有下表：

I have the following table in Oracle Database:

table EMPLOYEE(NAME varchar(32) ,SURNAME varchar(32)  , PIC BLOB );

和以下路线：

 <route>
   <from uri="direct:startOracle" />
    <to uri="sql:INSERT INTO EMPLOYEE (Name, surname, pics) VALUES (# , # , #)?dataSource=#oracle" />
</route>

：

Resource r = contex.getResource("classpath:file/ciao.jpg");
InputStream inputStream = r.getInputStream();   
aProducerTemplate.sendBody(new Object[] {"mario", "ross", inputStream});

我总是得到一个不兼容的第三个参数（输入流）。

I always get a kind incompatible third param (input stream).

相同的代码在MySQL数据库上运行时没有错误，但是在Oracle上无法正常工作。

The same code runs without error on MySQL database, but on Oracle does not work well .

我看到组件camel SQL使用以下代码作为使用预编译语句的策略：

I saw that component camel SQL use the following code as a strategy for the using of prepared statement:

// use argument setter as it deals with various JDBC drivers setObject vs setLong/setInteger/setString etc.
ArgumentPreparedStatementSetter setter = new ArgumentPreparedStatementSetter(args);
setter.setValues(ps);

，但此策略似乎不使用prepare语句如下：

but this strategy doesn't seem to use prepare statement as the following:

ps.setBinaryStream(3,inputStream,length);

，而是调用以下代码：

ps.setObject(paramIndex, inputStream);

似乎在oracle db上效果不好。

and it seem doesn't work very well on oracle db.

所以问题是：我会更改SQL camel组件使用的默认SQL准备语句策略吗？还是有其他方法？

So the question is: will I change the Default SQL prepared statement strategy being used by SQL camel component? Or are there other ways?

推荐答案

非常感谢评论。

我刚刚找到了一个解决方案：

I have just found a solution:

Resource r = contex.getResource("classpath:file/ciao.jpg");
InputStream inputStream = r.getInputStream();
SqlLobValue blobVal = new SqlLobValue(inputStream, (int) r.getFile().length() );
SqlParameterValue blob = new SqlParameterValue(Types.BLOB,"BLOB", blobVal );
aProducerTemplate.sendBody(new Object[] {"Mario", "Rossi",blob} );

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