springMVC(10) springMVC參數傳遞(封裝對象接收參數)

上面的例子中，是用相同的參數來接收頁面傳遞的參數，若頁面參數過多，方法傳的參數也會相應增多，這樣也不符合面向對象的思想。本示例就示範，把參數封裝成對象來接收。

先封裝對象User

package com.xdy.entity;

public class User {
	private String userName;
	private Integer age;

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}

	public Integer getAge() {
		return age;
	}

	public void setAge(Integer age) {
		this.age = age;
	}

}
           

修改DataController：

package com.xdy.controller.annotation;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.xdy.entity.User;

@Controller
@RequestMapping("/data")
public class DataController{
	
	@RequestMapping("/addUser")
	public String addUser(HttpServletRequest request,User user){
		request.setAttribute("userName",user.getUserName());
		request.setAttribute("age",user.getAge());
		return "/userManager";
	}
	
	@RequestMapping("/show")
	public String show(){
		return "/addUser";
	}
}