spring实践案例（demo）

package com.gx.web; import java.io.PrintWriter; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.gx.service.UserService; import com.gx.vo.UserVo; // http://127.0.0.1:8080/工程名称/indexaction/test.do @Controller @RequestMapping(value="/indexaction") public class IndexController extends BaseController{ @Autowired private UserService userService; @RequestMapping(value="/test") public String demo1(){ //do work return "/book/book_list"; } @RequestMapping("/login") public String login(UserVo user){ // System.out.println("id="+user.getId()); System.out.println("username="+user.getUsername()); System.out.println("password="+user.getPwd()); //request传值 super.request.setAttribute("vo", user); if(user.getUsername().equals(user.getPwd())){ return "/book/login_success"; }else { return "/book/login_false"; } } @RequestMapping("/login2") public String login2(UserVo user,Model model){ // System.out.println("id="+user.getId()); System.out.println("username="+user.getUsername()); System.out.println("password="+user.getPwd()); //request传值 model.addAttribute("vo", user); if(user.getUsername().equals(user.getPwd())){ return "/book/login_success"; }else { return "/book/login_false"; } } @RequestMapping("/login3") public ModelAndView login3(UserVo user){ // System.out.println("id="+user.getId()); System.out.println("username="+user.getUsername()); System.out.println("password="+user.getPwd()); ModelAndView mv=new ModelAndView(); if(user.getUsername().equals(user.getPwd())){ mv=new ModelAndView("/book/login_success"); }else { mv=new ModelAndView("/book/login_false"); } mv.addObject("vo", user); return mv; } @RequestMapping("/login4") public String login4(UserVo user,HttpServletRequest request){ // System.out.println("id="+user.getId()); System.out.println("username="+user.getUsername()); System.out.println("password="+user.getPwd()); //request传值 request.setAttribute("vo", user); if(user.getUsername().equals(user.getPwd())){ this.userService.saveUser(user); return "/book/login_success"; }else { return "/book/login_false"; } } @RequestMapping("/getAjaxDateById") public void getPerson(String id,PrintWriter pw){ pw.write("hello,ajax返回的字符串...."); } }