multiple annotations found at this line: - the superclass "javax.servlet.http.httpservlet" was not found on the java build path - the superclass "javax.servlet.http.httpservlet" was not found on the java build path

在这一行中发现了多个注释：- 在Java构建路径上找不到超类“javax.servlet.http.httpservlet”- 在Java构建路径上找不到超类“javax.servlet.http.httpservlet”