Spring:如何将HttpServletRequest注入请求范围的bean？

import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

@Component
public class MyBean {
    @Autowired
    private HttpServletRequest request;

    public void doSomething() {
        // 使用request对象进行操作
    }
}

import javax.servlet.http.HttpServletRequest;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

public class MyBean {
    public void doSomething() {
        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes()).getRequest();
        // 使用request对象进行操作
    }
}

import javax.servlet.http.HttpServletRequest;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

public class MyBean {
    public void doSomething(HttpServletRequest request) {
        WebApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(request.getServletContext());
        // 使用request对象进行操作
    }
}