我在做程序时遇到二行错误:1"login.jsp": incompatible types; found : java.lang.Object, required: boolean
2"welcome.jsp": cannot find symbol; symbol : variable sb, location: class org.apache.jsp.welcome_jsp
2"welcome.jsp": cannot find symbol; symbol : variable sb, location: class org.apache.jsp.welcome_jsp
类型不匹配;现在是:java.lang.Object,需要的是:boolean2"welcome.jsp": cannot find symbol; symbol : variable sb, location: class org.apache.jsp.welcome_jsp
找不到标记;标记:variable,位置:class org.apache.jsp.welcome_jsp