Spring中HttpRequest获取的几种方式

最新推荐文章于 2024-10-14 11:51:47 发布

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本文介绍了在Spring MVC框架中处理HTTP请求的五种不同方法，包括直接在Controller中添加参数、使用@Autowired注解自动注入HttpServletRequest对象、通过继承基类实现自动注入、从上下文中获取请求对象以及利用@ModelAttribute进行绑定。每种方法都有其适用场景。

[size=large][b]1.Controller中加参数[/b][/size]


@Controller
public class TestController {
    @RequestMapping("/test")
    public void test(HttpServletRequest request) throws InterruptedException {

    }
}

[size=large][b]2.自动注入[/b][/size]

@Controller
public class TestController{

    @Autowired
    private HttpServletRequest request; //自动注入request

    @RequestMapping("/test")
    public void test() throws InterruptedException{

    }
}

[size=large][b]3.父类中自动注入[/b][/size]

public class BaseController {
    @Autowired
    protected HttpServletRequest request;     
}

@Controller
public class TestController extends BaseController {

    @RequestMapping("/test")
    public void test() throws InterruptedException {

    }
}

[size=large][b]4.上下文中获取[/b][/size]

@Controller
public class TestController {
    @RequestMapping("/test")
    public void test() throws InterruptedException {
        HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();

    }
}

[size=large][b]5.@ModelAttribute(线程不安全)[/b][/size]

@Controller
public class TestController {
    private HttpServletRequest request;
    @ModelAttribute
    public void bindRequest(HttpServletRequest request) {
        this.request = request;
    }
    @RequestMapping("/test")
    public void test() throws InterruptedException {

    }
}