jsp实现excel文件上传(jsp文件上传漏洞)

在项目中,经常用到的一个功能就是文件的上传和下载,不过大多数情况下都是通用的工具类,自己写的情况较少,这里写个通过Spring框架和ajaxFileUpload插件实现上传的小功能,做个练习和记录。
首先配置下SpringMVC的配置文件,配置支持文件上传

<!-- 配置MultipartResolver 用于文件上传 使用spring的CommosMultipartResolver 
    说明:
    p:defaultEncoding="UTF-8":这里设置默认的文件编码为UTF-8,必须与用户JSP的默认编码一致;
    p:maxUploadSize="5000000":指定文件上传大小,单位为字节;
    p:uploadTempDir="fileUpload/temp":文件上传临时目录,上传完成后,就会将临时文件删除;
    
    -->  
     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"  
        p:defaultEncoding="UTF-8"  
        p:maxUploadSize="5000000"  
        p:uploadTempDir="fileUpload/temp"  
     >  
    </bean>  

然后写个简单的JSP页面,为了方便绑定数据,引入Spring自带的Form表单标签,引入语句

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form" %> 

Form表单实现一个简单的注册功能,虽然说美感不好,这里还是引用了下bootstrap做了个简单的排版。因为原版的file标签的格式无法调整,所有用了其他的小标签代替,然后用按钮去触发file标签

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
request.setAttribute("_path", path);
%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="form" %> 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
    <link rel="stylesheet" href="<%=basePath%>static/css/bootstrap.css"/>
    <script type="text/javascript" src="<%=basePath%>static/js/jquery.min.js"></script>
    <script type="text/javascript" src="<%=basePath%>static/js/ajaxfileupload.js"></script>
    <script type="text/javascript" src="<%=basePath%>static/js/bootstrap.js"></script>
    <script type="text/javascript" src="<%=basePath%>static/js/jquery.json-2.4.js" charset="UTF-8"></script> 
    <script type="text/javascript">
        var path = "${_path}";
        $(function(){
            
            /* 重置Form表单功能 */
            $("#clean").click(function(){
                document.getElementById("user").reset();
                $("#userName").attr("value","");
                $("#password").attr("value","");
                $("#name").attr("value","");
                $("#sex").attr("value","");
                $("#file").attr("value","");
            });
            
            /* begin 附件上功能 */
            $("#choose").click(function(){
                $("#fileUpload").click();
            });
            $("#fileUpload").change(function(){
                $("#file").attr("value",$("#fileUpload").val());
                $.ajaxFileUpload({  
                    type: "POST",  
                    url: path+"/fileUpload.do",  
                    data:{fileName:$("#fileUpload").val()},//要传到后台的参数,没有可以不写  
                    secureuri : false,//是否启用安全提交,默认为false  
                    fileElementId:'fileUpload',//文件选择框的id属性  
                    dataType: 'json',//服务器返回的格式  
                    async : false,  
                    success: function(mes){  
                       if(mes.message=="OK"){
                           alert("附件上传成功");
                       }
                       if(mes.message=="NG"){
                           alert("附件上传失败");
                       }
                    },  
                    error: function (){  
                        alert("附件上传失败");
                    }  
                });
            });
            /* end 附件上功能 */
        });
    </script>
  </head>
  
  <body>
  <div class="container" style="width: 100%" >
    <div> </div>
    <div class="row">
        <div class="col-lg-5 col-md-5 col-sm-5 col-xs-5"></div>
        <div class="col-lg-1 col-md-1 col-sm-1 col-xs-1" >注册页面</div>
    </div>
   <div> </div>
   <div class="row">
        <form:form commandName="user" action="${_path }/register.do"  method="post" enctype="multipart/form-data">
            <div  class="col-lg-4 col-md-4 col-sm-4 col-xs-4"></div>
            <div  class="col-lg-1 col-md-1 col-sm-1 col-xs-1" style="text-align:right">账号:</div>
            <form:input path="userName" type = "text" value = "" class="input-large"/>
            <div> </div>
            <div  class="col-lg-4 col-md-4 col-sm-4 col-xs-4"></div>
            <div  class="col-lg-1 col-md-1 col-sm-1 col-xs-1" style="text-align:right">密码:</div>
            <form:input path="password" type = "password" class="input-large"/>
            <div> </div>
            <div  class="col-lg-4 col-md-4 col-sm-4 col-xs-4"></div>
            <div  class="col-lg-1 col-md-1 col-sm-1 col-xs-1" style="text-align:right">姓名:</div>
            <form:input path="name" type = "text" value = "" class="input-large"/>
            <div> </div>
            <div  class="col-lg-4 col-md-4 col-sm-4 col-xs-4"></div>
            <div  class="col-lg-1 col-md-1 col-sm-1 col-xs-1" style="text-align:right">性别:</div>
            <form:input path="sex" type = "text" value = "" class="input-large"/>
            <div> </div>
            <div  class="col-lg-4 col-md-4 col-sm-4 col-xs-4"></div>
            <div  class="col-lg-1 col-md-1 col-sm-1 col-xs-1" style="text-align:right">附件:</div>
            <input id = "fileUpload" name = "fileUpload" type = "file"  style=" display: none">
            <form:input type ="text" class="input-large" path= "file" />
            <input id ="choose" type="button" value = "选择" class="btn btn-primary btn-xs"/>
            <div> </div>
            <div  class="col-lg-4 col-md-4 col-sm-4 col-xs-4"></div>
            <div  class="col-lg-2 col-md-2 col-sm-2 col-xs-2" style="text-align:right">
                <input id = "upload" type = "submit" value = "提交" class="btn btn-default btn-sm"/>
                    
                <input id ="clean" type="button" value = "清除" class="btn btn-default btn-sm"/>
            </div>
            
        </form:form>
    </div>
  </div>
  </body>
</html>

后台页面控制器,因为用了SpringMVC的form表单,所以在渲染的时候模型中一定要有user这个对象,所以我们用控制器跳转页面

@RequestMapping("/Login.do")
    public String Login(@ModelAttribute("user") User user, Model model){
        System.out.println("进入");
        user.setName("小明");
        user.setSex("男");
        user.setUserName("叶良辰");
        model.addAttribute("user", user);
        
        return "index";
        
    }

这里为了显示SpringMVC form的自动绑定功能,我给user对象设置了值,在JSP页面,如果form:input标签由path属性和user里的属性一样,会自动设置值

jsp实现excel文件上传(jsp文件上传漏洞)

附件的js代码在上面的JSP页面中已经写好了,下面是后台控制的controller,因为我们配置了multipartResolver,所以form表单是设置了enctype=”multipart/form-data,后台一样能直接取出文本值
接受文本框内容的controller

    @RequestMapping("/register.do")
    public String register(@ModelAttribute("user") User user, Model model){

        model.addAttribute("user", user);
        System.out.println(user);
        return "index";
        
    }

附件上传的controller

    @RequestMapping("/fileUpload.do")
    public @ResponseBody Message fileUpload(HttpServletRequest request,@RequestParam("fileUpload") MultipartFile file,
            @RequestParam("fileName") String fileName,@ModelAttribute("user") User user,Model model,Message mes){
        
        //简单判断文件是否为空
        if(!file.isEmpty()){
            
            try {
                // 文件保存路径  
                String filePath = request.getSession().getServletContext().getRealPath("/") + "fileUpload/"  
                        + file.getOriginalFilename();
                file.transferTo(new File(filePath));
                mes.setMessage("OK");
            } catch (Exception e) {
                mes.setMessage("NG");
                e.printStackTrace();
            }
        }
        user.setFile(fileName);
        System.out.println(fileName);
        model.addAttribute("user", user);
        System.out.println(user);
        return mes;
        
    }

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