SpringMvc MultipartFile实现图片文件上传示例

整理文档，搜刮出一个SpringMvc MultipartFile实现图片文件上传示例，稍微整理精简一下做下分享。

spring-servlet.xml

upload/index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>








图片上传
只能上传单张10M以下的 PNG、JPG、GIF 格式的图片

  选择文件:
   

或者使用ExtJs

js/user/photoUpload.js

Ext.onReady(function(){
  Ext.create('Ext.form.Panel', {
    title: '图片上传',
    width: 600,
    bodyPadding: 10,
    frame: true,
    renderTo: Ext.getBody(),
    items: [{
      xtype: 'filefield',
      name: 'file',
      fieldLabel: 'Photo',
      labelWidth: 50,
      msgTarget: 'side',
      fileUpload: true ,
      allowBlank: false,
      blankText:"Select an image",
      emptyText: 'You can only upload a single PNG 10M or less, JPG, GIF format images',
      anchor: '100%',
      buttonText: '选择图片'
    }],

    buttons: [{
      text: '上传',
      handler: function() {
        var form = this.up('form').getForm();
        if(form.isValid()){
          form.submit({
            url: '/shop/auth/photoUpload',
            waitMsg: '正在上传图片...',
            success: function(fp, o) {
              Ext.Msg.alert('提示', o.result.msg);
            }
          });
        }
      }
    }]
  });
});

pages/user/photoUpload.html

AuthController.java

/**
   * 图片文件上传
   */
  @ResponseBody
  @RequestMapping(value = "/photoUpload",method = RequestMethod.POST)
  public ResultData