package sy.controller;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import sy.model.User;
import sy.service.UserServiceI;
//springMvc的应用
//加上@Controller表示这是一个控制器类，将它加入到spring-mvc的框架中了
//在spring-mvc.xml中<context:component-scan base-package="sy.controller" />就能扫描到
@Controller
//访问地址的注解@RequestMapping
//在web.xml中配置了<url-pattern>*.do</url-pattern>所以("/userController.do")也不要写
@RequestMapping("/userController")
public class UserController {
private UserServiceI userService;
public UserServiceI getUserService() {
return userService;
}
@Autowired
public void setUserService(UserServiceI userService) {
this.userService = userService;
}
@RequestMapping("/showUser")
public String showUser(Integer id, HttpServletRequest request) {
//因为在spring-mvc.xml 31行配置了 p:suffix=".jsp"
//所以返回是showUser.jsp 文件的后缀.jsp不要写
User u = userService.getUserById(id);
request.setAttribute("user", u);
return "showUser";
}
}
浏览器访问效果：
代码修改后：
@RequestMapping("/showUser/{id}")
public String showUser(@PathVariable Integer id, HttpServletRequest request) {
//因为在spring-mvc.xml 31行配置了 p:suffix=".jsp"
//所以返回是showUser.jsp 文件的后缀.jsp不要写
User u = userService.getUserById(id);
request.setAttribute("user", u);
return "showUser";
}
浏览器地址：http://127.0.0.1:8080/mybatis/userController/showUser/2.do
效果：
也可以这这种方式：
@RequestMapping("/{id}/showUser")
public String showUser(@PathVariable Integer id, HttpServletRequest request) {
//因为在spring-mvc.xml 31行配置了 p:suffix=".jsp"
//所以返回是showUser.jsp 文件的后缀.jsp不要写
User u = userService.getUserById(id);
request.setAttribute("user", u);
return "showUser";
}
浏览器地址：http://127.0.0.1:8080/mybatis/userController/1/showUser.do
效果：
