@RequestMapping(value = "/{username}/navigation")报错

 @RequestMapping(value = "/{username}/navigation")
    public String usersPage(@PathVariable String username,HttpSession session) {
        String s=username;
        return "navigation/navigation";
    }

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也有可能是缓存吧

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没有问题，是Idea的问题，我重启下就没问题了，Idea太坑了，以后我真要小心 点