No statements may be issued when any streaming result sets are open and in use on a given connection

eclipse下面的错误，注意下面错误中标红字体处。

Streaming result set com.mysql.jdbc.RowDataDynamic@cf13b1 is still active. No statements may be issued when any streaming result sets are open and in use on a given connection. Ensure that you have called .close()

Ensure that you have called .close() 我理解人意思是有没有没有关闭的标签，比如：

BufferedWriter，可以在报错代码前，执行：

BufferedWriter.flush();

BufferedWriter.close();

BufferedWriter = null;

关闭标签。

这种情况多是因为代码因为某些错误导致进入try{} catch() {}中的catch结构，导致try中的关闭标签代码没有执行。