java中获取request与response对象的方法

Java 获取Request,Response对象方法

 

第一种、参数

@RequestMapping("/test")
@ResponseBody
public void saveTest(HttpServletRequest req, HttpServletResponse resp){　　
}

第二种、注解

@Autowired
private  HttpServletRequest request;  

第三种、上下文获取

1、在web.xml配置监听器

<listener>
      <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>

2、程序使用(比较重要,能够凭空获取)

HttpServletRequest req = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
HttpServletResponse resp = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getResp