没有配置流

今天用到一个配置,我当时没有注册进入两个流,

 

运行的时候,发现这个错误

 

org.springframework.batch.item.WriterNotOpenException: Writer must be open before it can be written to

 

Converted from a single FlatFileItemWriter to a database and flatfileitemwriter and didn't register the flatfile one as a stream.

If using a single FlatFileItemWriter it is enough to register it as an ItemWriter however when using the composite the adding it as a stream is also needed.

 

所以必须配置

 

<chunk reader="heterogeneousItemReader" writer="reterogeneousItemWriter"

commit-interval="1" >

<streams>

                       <stream ref="studentwriter" />

                       <stream ref="goodswriter" />

                    </streams>

</chunk>