HTTP Status 500 - For input string: ""，哪位兄弟解答下

源自：4-5 实现信息批量删除

java.lang.NumberFormatException: For input string: ""

at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)

at java.lang.Integer.parseInt(Integer.java:592)

at java.lang.Integer.valueOf(Integer.java:766)

at com.imooc.message.service.impl.MessageServiceImpl.deleteBatch(MessageServiceImpl.java:33)

at com.imooc.message.servlet.DeleteBatchServlet.doPost(DeleteBatchServlet.java:28)

service层的代码：

提问者：yhyh123 2016-10-31 19:38