springmvc的一些技术实现

package org.tlgg.control;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.tlgg.bean.Roles;
import org.tlgg.bean.UserInfo;

@Controller

public class NewController {
	@ModelAttribute("userinfo")//用于把返回值保存到Model中为属性
	public UserInfo getInfo(){
		return new UserInfo(101,"tl","ss",12, null, "男");
	}
	
	@RequestMapping(value="/newDemo",method=RequestMethod.GET)
	public String newDemo(){
		System.out.println("/index-get");
		return "newDemo";
	}
	@RequestMapping(value="/newDemo",method=RequestMethod.POST)
	public String newDemo(@ModelAttribute("userinfo")UserInfo info,@RequestParam("file")MultipartFile file,HttpServletRequest request) throws IllegalStateException, IOException{
		//生成独一无二的img名称
		String img = request.getSession().getId()+System.currentTimeMillis();
		file.transferTo(new File("f://"+img+".txt"));
		System.out.println("/index-post"+info);
		return "newDemo";
	}
	@ModelAttribute("list")
	public List
 
   initList(){
		List
  
    list=new ArrayList
   
    (); list.add(new Roles(1, "BOSS")); list.add(new Roles(2, "HR")); list.add(new Roles(3, "CEO")); list.add(new Roles(4, "CF0")); return list; } } -------------------------------------- 
     
     
      
      
      
      
       
       
       
      
      
      
       
       
       
      
      
      
       
        
        
        
       
      
      
      
       
        
         
          
           
           
            text/html;charset=UTF-8
            
           
          
         
        
       
      
     ---------------------------------------- <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="form" uri="http://www.springframework.org/tags/form"%>    
     
       
     
      用户名：
     
     
 密码：
     
     
 
     男 
     女 
      
       
      上传个人文件:
      
      
       
     
     
      
      
       spring
       
      
       org.springframework.web.servlet.DispatcherServlet
       
       
       
        contextConfigLocation
        
       
        classpath:/AnotationAOP.xml
        
       
      
       1
       
      
      
      
       spring
       
      
       /