springmvc请求向restfull风格转换(十)

素颜马尾好姑娘i 2022-06-12 05:19 221阅读 0赞

1.普通请求  
后台代码

@RequestMapping("edit")
        public String edit(Integer id, Model model){
            User user3 = new User();
            user3.setId(id);
            user3.setUserName("孙尚香");
            user3.setAge(18);
            user3.setBirthday(new Date());
            model.addAttribute("user", user3);
            return "edit";
        }

页面路径

![SouthEast][]

2.将请求id加入到url中不用?或&拼接参数  
后台代码

@RequestMapping("edit/{id}")
        public String edit(@PathVariable Integer id, Model model){
            User user3 = new User();
            user3.setId(id);
            user3.setUserName("孙尚香");
            user3.setAge(18);
            user3.setBirthday(new Date());
            model.addAttribute("user", user3);
            return "edit";
        }

页面请求

![SouthEast 1][]  
 注:请求参数在URI之中需要在获取的参数前加@PathVariable注解,否则将获取不到数据,  
![SouthEast 2][]

3.实现restfull风格  
前面已非常解决restfull了,但由于路径后还带有扩展名,现在需将扩展名去掉  
在web.xml配置文件中配置拦截,将rest目录下所有请求都被拦截，servlet可以拦截目录

![这里写图片描述][SouthEast 3]  
后台代码

页面请求

![SouthEast 4][]

[SouthEast]: /images/20220612/76984567d5264178b3f31578e52c99ad.png
[SouthEast 1]: /images/20220612/106a803999ee44149baa961b991dfdf3.png
[SouthEast 2]: /images/20220612/68400215947d472ea6c1a4ba3ef417c9.png
[SouthEast 3]: /images/20220612/f2dc6bb18cc34ad9a7d5bdfd14df2a14.png
[SouthEast 4]: /images/20220612/3d9f7128740641b59fc66204d555fddc.png