为什么在向控制器添加路径变量时会阻止CSS和JS

Question

I'm using @PathVariable to obtain some placeholder from the uri this is the function from my controller

@RequestMapping(value = "/mail_detail/{id}", method = RequestMethod.GET)
public String showCourrierDetail(@PathVariable("id") String id) {
    //System.out.println("id="+id);
    return "mail_detail";
}

It redirects me to jsp page named mail_detail My problem is that when I add the path variable, the jsp page don't read the css files although when I use

@RequestMapping(value = "/mail_detail", method = RequestMethod.GET)
public
 String showmail() {


    return "mail_detail";
}

It works and reads all the css files

Answer 1

如果文件是jsp文件，则可以在URL中添加${pageContext.request.contextPath}前缀，例如<link href="${pageContext.request.contextPath}/resources/css/bootstrap.min.css" rel="stylesheet"> 。