做图书管理系统代码老是出错，急！ 有没有大神可以帮忙看看

Question

是这个navigation.jsp有错误，我想要删掉一些功能，但是怕删错
<%@include file="navigation.jsp"%>这一句报错
Multiple annotations found at this line:
- Manager cannot be resolved to a variable
- The static method toChinese(String) from the type ChStr should be accessed in a
static way
- The static method toChinese(String) from the type ChStr should be accessed in a
static way
- Manager cannot be resolved to a variable

Answer 1

http://www.java1234.com/a/kaiyuan/javaWeb/2013/0503/312.html
http://blog.sina.com.cn/s/blog_4b5bc0110101a97e.html