"com.sxt.web"/>

package com.sxt.web;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;

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

import com.sxt.service.UserService;

@Controller

@RequestMapping("/user.do")

publicclass UserController {

@Resource

private UserServiceuserService;

//http://localhost:8080/springmvc02/user.do method=reg&uname=zzzz

@RequestMapping(params="method=reg")

public String reg(String uname) {

System.out.println("HelloController.handleRequest()");

userService.add(uname);

return"index";

}

public UserService getUserService() {

returnuserService;

}

publicvoid setUserService(UserService userService) {

this.userService = userService;

}

}

@RequestMapping(params="method=reg5")

public String reg5(@RequestParam("name")String uname,ModelMap map) {

System.out.println("HelloController.handleRequest()");

System.out.println(uname);

//通过ModelMap传参

map.put("name", uname);

return"index";

}

@Controller

@RequestMapping("/user.do")

@SessionAttributes({"u","a"}) //将ModelMap中属性名字为u、a的再放入session中。这样，request和session中都有了。

publicclass UserController {

@RequestMapping(params="method=reg4")

public String reg4(ModelMap map) { System.out.println("HelloController.handleRequest()");

map.addAttribute("u","uuuu"); //将u放入request作用域中，这样转发页面也可以取到这个数据。

return"index";

}

}

**********${requestScope.u.uname}

**********${sessionScope.u.uname}

package com.sxt.web;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;

import org.springframework.ui.ModelMap;

import org.springframework.web.bind.annotation.ModelAttribute;

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

import org.springframework.web.bind.annotation.SessionAttributes;

@Controller

@RequestMapping("/user.do")

@SessionAttributes({"u","a"})

publicclass UserController {

@RequestMapping(params="method=reg4")

public String reg4(ModelMap map) {

System.out.println("HelloController.handleRequest()");

map.addAttribute("u","尚学堂高淇");

return"index";

}

@RequestMapping(params="method=reg5")

public String reg5(@ModelAttribute("u")String uname ,ModelMap map) {

System.out.println("HelloController.handleRequest()");

Syst