Spring MVC 设置请求域

Spring MVC 设置请求域

package com.xxxx.springmvc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import java.util.Map;

/**
 * 设置请求域
 *      1.ModelAndView对象
 *          modelAndView.addObject(参数名，参数值);
 *      2.HttpServletRequest对象
 *          request.setAttribute(参数名，参数值);
 *      3.Model对象
 *          model.addAttribute(参数名，参数值);
 *      4.ModelMap对象
 *          modelMap.addAttribute(参数名，参数值);
 *      5.Map对象
 *          map.put(参数名，参数值);
 *
 */
@Controller
public class DataController {
    
    
    /**
     * ModelAndView对象
     * @return
     */
    @RequestMapping("data01")
    public ModelAndView data01(){
    
    
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("uname","admin1");
        //设置视图
        modelAndView.setViewName("data");

        return modelAndView;
    }

    /**
     * ModelAndView对象
     * @return
     */
    @RequestMapping("data02")
    public ModelAndView data02(ModelAndView modelAndView){
    
    

        modelAndView.addObject("uname","admin2");
        //设置视图
        modelAndView.setViewName("data");

        return modelAndView;
    }

    /**
     * HttpServletRequest对象
     * @param request
     * @return
     */
    @RequestMapping("data03")
    public String data03(HttpServletRequest request){
    
    
        request.setAttribute("uname","admin3");
        return "data";
    }


    /**
     * Model对象
     */
    @RequestMapping("data04")
    public String data04(Model model){
    
    
        model.addAttribute("uname","admin4");
        return "data";
    }

    /**
     * ModelMap对象
     */
    @RequestMapping("data05")
    public String data05(ModelMap modelMap){
    
    
        modelMap.addAttribute("uname","admin5");
        return "data";
    }


    /**
     * Map对象
     */
    @RequestMapping("data06")
    public String data06(Map map){
    
    
        map.put("uname","admin6");
        return "data";
    }
    

}