@Requestparam 绑定单个请求的值
url：/requestparam1?username=zhang
@RequestMapping("/requestparam1")
public String requestparam2(@RequestParam("username") String username)
@PathVariable 绑定URI模板变量值
@RequestMapping(value="/users/{userId}/topics/{topicId}")
public String test(
@PathVariable(value="userId") int userId,
@PathVariable(value="topicId") int topicId)
@SessionAttributes 绑定命令对象到session
//1、在控制器类头上添加@SessionAttributes注解
@SessionAttributes(value = {"user"})
public class SessionAttributeController
//2、@ModelAttribute注解的方法进行表单引用对象的创建
@ModelAttribute("user")
public UserModel initUser()
//3、@RequestMapping注解方法的@ModelAttribute注解的参数进行命令对象的绑定
@RequestMapping("/session1")
public String session1(@ModelAttribute("user") UserModel user)
//4、通过SessionStatus的setComplete()方法清除@SessionAttributes指定的会话数据
@RequestMapping("/session2")
public String session(@ModelAttribute("user") UserModel user, SessionStatus status) {
if(true) { //④
status.setComplete();
}
return "success";
}