后端-框架-Spring-Spring MVC参数传递(注解实现)

后端-框架-Spring-Spring MVC参数传递(注解实现)

@RequestMapping

@RequestMapping	trait
value	URL
method	get or post
params	vairables

package cn.smbms.controller;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

/*类名前加入@RequestMapping为方法中加入要高一级*/
/* localhost:8080/SMBMS-MVC/user/welcome.html */
@Controller
@RequestMapping("/user")
public class UserController {
private Logger logger = Logger.getLogger(IndexController.class);
	
	/*具体还有什么方法CTRL点击@RequestMapping*/
	@RequestMapping(value="/welcome.html",method=RequestMethod.GET,params="username")
	protected String welcome(@RequestParam(value="username",required=true) String username){
		logger.info("Welcome "+username);
		return "index";
	}
}

Or

package cn.smbms.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class IndexController {
	private Logger logger = Logger.getLogger(IndexController.class);
	
	@RequestMapping("/index.html")
	protected ModelAndView index(@RequestParam String username) {
		ModelAndView mav = new ModelAndView();
		mav.setViewName("index");
		/*以Key-Value形式加入到模型数据*/
		/*如果添加一个对象,在jsp中通过${user.username }获取值*/
		mav.addObject("username", username);//jsp通过${username }获取值
		return mav;//返回逻辑视图名
	}
	
	@RequestMapping("/welcome.html")
	protected String welcome(@RequestParam String username){
		logger.info("Welcome "+username);
		return "index";
	}
}

相关链接

• Spring MVC环境搭建(注解实现)