Question

JSP错误cannot be resolved

org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 17 in the jsp file: /showlist.jsp
Generated servlet error:
List cannot be resolved to a type

An error occurred at line: 29 in the jsp file: /showlist.jsp
Generated servlet error:
i cannot be resolved

An error occurred at line: 30 in the jsp file: /showlist.jsp
Generated servlet error:
u cannot be resolved

An error occurred at line: 31 in the jsp file: /showlist.jsp
Generated servlet error:
u cannot be resolved

An error occurred at line: 32 in the jsp file: /showlist.jsp
Generated servlet error:
u cannot be resolved

An error occurred at line: 33 in the jsp file: /showlist.jsp
Generated servlet error:
u cannot be resolved

Answer 1

拜托，贴点代码过来，这怎么帮你
根据你的tomcat报的信息，
它说小服务器出错，list不能被解析成一个类型
i不能被解析
u不能被解析
看样子是你的list这儿没弄好吧

Answer 2

导入相关的包java.util.*意思是第showlist.jsp页面的第17行的List类型未知29.30.31.32.33行的i和u的类型定义有错了