SpringMVC-02

菜♕卷2024-01-14 14:39

添加@EnableWebMvc //配置json转化器（使用postman）

可以不用写下面两个方法了

@Bean

public RequestMappingHandlerMapping handlerMapping(){

return new RequestMappingHandlerMapping();

}

@Bean

public RequestMappingHandlerAdapter handlerAdapter(){

return new RequestMappingHandlerAdapter();

}

接收数据

接收cookie

java 复制代码

    @RequestMapping("/data")
    public String cookie(@CookieValue(value="cookieName") String value){
        return value;
    }

    @GetMapping("/save")
    public String save(HttpServletResponse response){
        Cookie cookie=new Cookie("cookieName","root");
        response.addCookie(cookie);
        return "OK";
    }

获取请求头

java 复制代码

    @RequestMapping("data")
    public String data(@RequestHeader("Host") String host){
        return "host:"+host;
    }

原生对象获取

java 复制代码

    public String data(HttpServlet httpServlet, HttpServletRequest httpServletRequest,
                       HttpSession httpSession){
        return "HttpServlet"+httpServlet+" HttpServletRequest"+httpServletRequest+" HttpSession"+
                httpSession;
    }

共享域对象

java 复制代码

//1.原生api方式	
    @Autowired
    private ServletContext servletContext;
    public void data(HttpServletRequest httpServletRequest, HttpSession httpSession){
        
    }
    
 //2.
    //spring提供的方法:request提供了几种   model   moaelMap    map    modelAndView