获取当前线程中的HttpServletRequest对象

1、使用spring注解自动注入也是线程安全的参考了：https://mbd.baidu.com/ug_share/mbox/4a83aa9e65/share?product=smartapp&tk=9f5b9a1e513c2f82715d65bf455d2129&share_url=https%3A%2F%2Fyebd1h.smartapps.cn%2Fpages%2Fblog%2Findex%3FblogId%3D80885270%26_swebfr%3D1%26_swebFromHost%3Dbaiduboxapp&domain=mbd.baidu.com

@Autowired
private HttpServletRequest httpServletRequest;

1.1 通过接口调用处理的类使用其获取参数是正常的

1.2 如果是通过spring的监听或者定时任务发起的请求HttpServletRequest不为空，但是使用其获取参数的时候 62行会抛出异常（原因是@Autowired注入的是代理类每次执行时会从当前线程获取具体的对象，但是定时任务发起的请求没有HttpServletRequest所以校验报错）

org.springframework.web.context.request.RequestContextHolder#currentRequestAttributes

2、提取内部获取逻辑自己实现的工具类避免报错的问题

package com.hdx.common.hdxspringinit.utils;

import org.springframework.stereotype.Controller;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

@Controller
public class HttpServerletRequestUtils {

    /**
     * 获取当前线程HttpServletRequest对象
     *
     * @return HttpServletRequest
     */
    public HttpServletRequest getServerRequest(){
        HttpServletRequest httpServletRequest = null;
        try {
            RequestAttributes requestattributes  = RequestContextHolder.getRequestAttributes();
            if (requestattributes == null) {
                return null;
            }
            ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) requestattributes;
            if (servletRequestAttributes == null) {
                return null;
            }
            httpServletRequest = servletRequestAttributes.getRequest();
        } catch (Exception exception) {
            // 打印异常信息
            exception.printStackTrace();
        }

        return httpServletRequest;
    }

}

标签：HttpServletRequest,web,springframework,获取,线程,import,org,null
来源： https://www.cnblogs.com/hu0529/p/16412167.html