java - 出现错误 : The type java. util.Map$Entry 无法解决。它是从必需的间接引用的

Question

我正在学习 Java Web 应用程序。当我尝试一个例子时，我收到错误

The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files

我的代码:

package com.tutorialspoint;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.ModelMap;

@Controller
@RequestMapping("/hello")
public class HelloController {

@RequestMapping(method = RequestMethod.GET)
public String printHello(ModelMap model){
    model.addAttribute("message", "Hello Spring MVC Framework!");
    return "hello";
}
}

我指的是:http://www.tutorialspoint.com/spring/spring_mvc_hello_world_example.htm

请指导我解决此问题。

Answer 1

您的 Eclipse IDE 似乎不支持 Java 8。您最好将 Eclipse 升级到支持 Java 8 的 Luna。请参阅此 https://www.eclipse.org/community/eclipse_newsletter/2014/june/article1.php