spring boot mybatis相关问题_spring boot mybatis面试题-优快云博客

1.读取properties文件中的配置值

使用@Value方式

@RestController  
public class WebController {  
    @Value("${test.msg}")  
    private String msg;  

    @RequestMapping("/index1")   
    public String index1(){  
        return "方式一:"+msg;  
    }  
}</span>

使用Environment方式

@RestController  
public class WebController {  
    @Autowired  
    private Environment env;  

    @RequestMapping("/index2")   
    public String index2(){  
        return "方式二:"+env.getProperty("test.msg");  
    }  
}

2.设置和获取cookie

输入，需要加入HttpServletResponse response

                Cookie cookie = new Cookie("access_token", access_token);
                cookie.setMaxAge(1296000); //设置cookie的过期时间是1296000s
                response.addCookie(cookie);

获取，只要添加标签@CookieValue,如：

public String Login(@CookieValue(value = "access_token", defaultValue = "fail") String access_token, HttpSession session)

设置和获取session

在函数处添加HttpSession session作为参数
获取：session.getAttribute(“currentUser”);
添加：session.setAttribute(“currentUser”, currentUser);