springmvc 数据模型（springmvc教程八）

版权声明：随意转载。 https://blog.csdn.net/dengjili/article/details/84500824

工程代码

github: https://github.com/dengjili/springmvc

Model

@RequestMapping("/modelData")
	public ModelAndView modelData(Model model) {
		ModelAndView mv = new ModelAndView();
		BeanParam beanParam = new BeanParam();
		beanParam.setName("测试2");
		beanParam.setNote("test2");
		model.addAttribute("beanParam", beanParam);
		
		mv.setViewName("forward:./showModel");
		return mv;
	}
	
	@RequestMapping("/showModel")
	public ModelAndView showModel(@RequestAttribute("beanParam") BeanParam beanParam) {
		logger.debug("==> {}", beanParam);
		ModelAndView mv = new ModelAndView();
		mv.addObject(beanParam);
		mv.setView(new MappingJackson2JsonView());
		return mv;
	}

ModelAndView

@RequestMapping("/modelAndView")
	public ModelAndView modelAndView(ModelAndView mv) {
		BeanParam beanParam = new BeanParam();
		beanParam.setName("测试3");
		beanParam.setNote("test3");
		mv.addObject("beanParam", beanParam);
		
		mv.setViewName("forward:./showModel");
		return mv;
	}
	
	@RequestMapping("/showModel")
	public ModelAndView showModel(@RequestAttribute("beanParam") BeanParam beanParam) {
		logger.debug("==> {}", beanParam);
		ModelAndView mv = new ModelAndView();
		mv.addObject(beanParam);
		mv.setView(new MappingJackson2JsonView());
		return mv;
	}

modelAndView2

	@RequestMapping("/modelAndView2")
	public ModelAndView modelAndView2() {
		ModelAndView mv = new ModelAndView();
		BeanParam beanParam = new BeanParam();
		beanParam.setName("测试3");
		beanParam.setNote("test3");
		mv.addObject("beanParam", beanParam);
		
		mv.setViewName("forward:./showModel");
		return mv;
	}
		
	@RequestMapping("/showModel")
	public ModelAndView showModel(@RequestAttribute("beanParam") BeanParam beanParam) {
		logger.debug("==> {}", beanParam);
		ModelAndView mv = new ModelAndView();
		mv.addObject(beanParam);
		mv.setView(new MappingJackson2JsonView());
		return mv;
	}

modelMap

@RequestMapping("/modelMap")
	public ModelAndView modelMap(ModelMap modelMap) {
		ModelAndView mv = new ModelAndView();
		BeanParam beanParam = new BeanParam();
		beanParam.setName("测试1");
		beanParam.setNote("test1");
		modelMap.addAttribute("beanParam", beanParam);
		
		mv.setViewName("forward:./showModel");
		return mv;
	}
	
	@RequestMapping("/showModel")
	public ModelAndView showModel(@RequestAttribute("beanParam") BeanParam beanParam) {
		logger.debug("==> {}", beanParam);
		ModelAndView mv = new ModelAndView();
		mv.addObject(beanParam);
		mv.setView(new MappingJackson2JsonView());
		return mv;
	}