广告项目:（1 ）文件上传

最新推荐文章于 2025-03-23 11:36:57 发布

原创最新推荐文章于 2025-03-23 11:36:57 发布 · 173 阅读

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#文件上传

文件上传：

Struts文件上传心得：

1.使用 org.apache.struts2.dispatcher.multipart.MultiPartRequestWrapper;这个拦截器，在action被调用之前，会首先走到fileUpload拦截器（对应的是FileUploadInterceptor类），在这个拦截器中，会先看一下request是不是 MultiPartRequestWrapper,如果不是，就说明不是上传文件用的request，fildUpload拦截器会直接将控制权交给下一个拦截器；如果是，就会把request对象强转为MultiPartRequestWrapper对象，然后调用hasErrors方法，看看有没有上传时候产生的错误，有的话，就直接加到了Action的错误（Action级别的）中了。另外，在fileUpload拦截器中会将MultiPartRequestWrapper对象中放置的文件全取出来，把文件、文件名、文件类型取出来，放到request的parameters中，这样到了params拦截器时，就可以轻松的将这些内容注入到Action中了，这也就是为什么fileUpload拦截器需要放在params拦截器前面的理由。在文件都放到request的parameters对象里之后，fileUpload拦截器会继续调用其他拦截器直到Action等执行完毕，他还要做一个扫尾的工作：把临时文件夹中的文件删除（这些文件是由commons-fileupload组件上传的，供你在自己的Action中将文件copy到指定的目录下，当action执行完了后，这些临时文件当然就没用了）。

2.Struts 2的文件上传，底层还是由apache的commons-fileupload 实现的。

3.配置文件：

4.页面的标签：标签的名字一是“upload”

5.1 页面代码：

upload.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%@ taglib prefix="c" uri="/WEB-INF/tags/c.tld" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>广告系统</title>
<link href="<%=path %>/css/platform.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="<%=path %>/js/lib/jquery.js"></script>

<script type="text/javascript" src="<%=path %>/js/lib/jquery.cookie.js"></script>
<script type="text/javascript" src="<%=path %>/js/lib/jquery.hotkeys.js"></script>
<script type="text/javascript" src="<%=path %>/js/jquery.jstree.js"></script>
<script type="text/javascript" src="<%=path %>/js/util.js"></script>
<script type="text/javascript" src="<%=path %>/jquery/jquery.form.js"></script>

var sel_node_id;

//公共方法--获得dom对象
function getObj(id){
  var obj = document.getElementById(id);
  return obj;
}

//公共方法-选择下拉框的值
function selectOptionVal(id){
  var positionVal="-1";
  var selectPobj = getObj(id);
  var options   = selectPobj.options;
  for(var i = 0; i < options.length; i++){
   var optionResult = options[i].selected ;
   if(optionResult){
    positionVal = options[i].value;
   }
  }
  return positionVal;
}

//检查input框，路径不能为空
function checkFileName(){

  var uploadFilePath = getObj("file_id").value;
  //alert("上传文件的路径"+uploadFilePath);
  if(uploadFilePath == "" || uploadFilePath == null || uploadFilePath == undefined){
   alert("上传的文件不能为空!");
   return false;
  }
  return true;
}

//检查通过开始提交,后开始验证到上传文件
function submitForm(nodeId,materialTypeVal,postionTypeVal,positionVal,iscover){
  var form = $("form[name=form1]"); //其中的form1是我form的名称
    var options = {
   url:'<%=application.getContextPath() %>/material/checkMaterial.do',
   type:'post',
   dataType:'json',
   data: {nodeTypeId:nodeId,materialType:materialTypeVal,postionType:postionTypeVal, positionId:positionVal,cover:iscover},
   success:function(data){
    var flag = data.result;
    if(flag){
     alert("上传成功");
    }else{
     alert("上传失败,原因:"+data.msg);
    }

   }
};
        form.ajaxSubmit(options);

}

//提交前先审核
function checkFile(){

var nodeId = getObj("treeNodeId").value;

  if(nodeId == null || nodeId == undefined){
   alert("请选择素材分类树的节点！");
   return;
  }

  //确定那个素材分类
  var materialType = selectOptionVal("sel_material_type");
  if(materialType == "-1"){
   alert("请选择-素材分类！");
   return;
  }

  //确定那个素材类型
  var postionType = selectOptionVal("sel_postion_type");
  if(postionType == "-1"){
   alert("请选择-素材类型！");
   return;
  }

  //确定那个广告位的素材
  var positionVal = selectOptionVal("sel_postion_id");
  if(positionVal == "-1"){
   alert("请选择-广告位！");
   return;
  }

  if(!checkFileName()){
   return;
  }

  var form = $("form[name=form1]"); //其中的form1是我form的名称
        var options = {
   url:'<%=application.getContextPath() %>/material/checkFileName.do',
   type:'post',
   dataType:'json',
   data: {nodeTypeId:nodeId},
   success:function(data){
    var flag = data.result;
    var isHasSame = data.isHasSame;
    if(flag){
     if(isHasSame){
      if(confirm("有同名的文件,确定要覆盖吗?")){
       submitForm(nodeId,materialType,postionType,positionVal,1);
      }else{
       alert("请您修改上传文件的名字！");
      }
     }else{
      submitForm(nodeId,materialType,postionType,positionVal,0);
     }
    }else{
     alert("上传失败,原因:"+data.msg);
    }
   },
   async:false
};
        form.ajaxSubmit(options);

}

</script>

//加载树
function init(){
  $.ajax({
   type:"post",
   //url: getContextPath() + '/material/listMaterialType.do',
   url: "<%=application.getContextPath() %>/material/listMaterialType.do",
   dataType :"String",
   success:function(json){
    var str = json.replace(/\"id"/g, 'attr:{"id"');
    var str2 = str.replace(/\,"data"/g, '},data');
    var jsondata = eval(str2);
       jtree(jsondata);
   },
   error:function(){
    alert("服务器异常,请稍后重试!");
   },
   async:false
  });
  }

  function jtree(o){
   var ctxPath = "<%=path%>";
   $("#tree").jstree(
    //json加载数据节点
    {

     //json数据区域
        "json_data" :{data:o}
      ,
     //要使用到的插件
            "plugins" : [ "themes", "json_data", "ui", "crrm", "cookies", "types"]
                ,
             "types" : {
              "max_depth" : -2,
              "max_children" : -2,
              "valid_children" : [ "drive" ],
              "types" : {
               "default" : {
                "valid_children" :"none",
                "icon" : {
                 "image" : ctxPath+"/images/folder.png"
                }
               }
              }
             }
          })

     //选择事件
   .bind("select_node.jstree", function(e, data) {
          var id = parseInt(data.rslt.obj.attr("id"));
          document.getElementById("treeNodeId").value =id;
         })

  }
</script>
</head>
<body onload="init()">

<form action="" id="form1" name="form1" >

<table cellpadding="0" cellspacing="1" class="servicesT">
  <tr>
   <th class="formTitle" colspan="99">
    <span>上传素材</span>
   </th>
  </tr>
  <tr>
   <td class="td_label">选择素材分类：</td>
   <td class="td_input">
    <select id="sel_material_type"   onchange="selectOptionVal(this.id)" class="e_select" onfocus="this.className='e_selectFocus'" onblur="this.className='e_select'" >
     <option id="ad_id" value="-1">请选择...</option>
     <c:forEach items="${mKindList}" var="materialBean">
      <option value="${materialBean.id }">${materialBean.name }</option>
     </c:forEach>

    
    </select>
   </td>
   <td class="td_label">选择素材类型：</td>
   <td class="td_input">
    <select id="sel_postion_type" onchange="selectOptionVal(this.id)" class="e_select" onfocus="this.className='e_selectFocus'" onblur="this.className='e_select'" >
     <option id="ad_id" value="-1">请选择...</option>
     <c:forEach items="${mTypeList}" var="materialBean">
      <option value="${materialBean.id }">${materialBean.name }</option>
     </c:forEach>
    
    </select>
   </td>
   
  </tr>
  <tr>

   <td class="td_label">选择广告位：</td>
   <td class="td_input"><select id="sel_postion_id" onchange="selectOptionVal(this.id)"   class="e_select" onfocus="this.className='e_selectFocus'" onblur="this.className='e_select'" >
     <option id="ad_id" value="-1">请选择...</option>
     <c:forEach items="${pNameList}" var="positionBean">
      <option value="${positionBean.id }">${positionBean.positionNameCn }</option>
     </c:forEach>
    
    </select> </td>
    <td class="td_label">选择文件：</td>
   <td class="td_input">
    <input title="浏览..." value="" id="file_id" name="upload" class="e_inputfile" onfocus="this.className='e_inputFocusfile'" onblur="this.className='e_inputfile'" type="file" />  </td>
     </tr>
  <tr>
   <td class="td_labela">选择类型：<br /><br />（大类别包括多个小类别）</td>
   <td colspan="5" class="td_inputaa" valign="top">
   <div id="tree" class="tree" ></div>


   </td>
     </tr>

  <tr>
   <td class="formBottom" colspan="99">
    <input name="Submit"
    type="button"
    title="上传"
    class="b_next"
    value=""
    onclick="checkFile()"
    />

             </td>

  </tr>
</table>
</form>
</body>
</html>

5.2 struts.xml配置文件代码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>

<include file="struts-default.xml" />
<include file="struts-plugin.xml" />

<constant name="struts.i18n.encoding" value="UTF-8" />


<constant name="struts.custom.i18n.resources" value="struts.messageResource" />

<constant name="struts.serve.static.browserCache" value="false" />

<constant name="struts.devMode" value="false" />


<constant name="struts.multipart.saveDir" value="tmp"/>


<constant name="struts.multipart.maxSize" value="2000000" />

<constant name="struts.objectFactory" value="spring" />


<constant name="struts.action.extension" value="do" />

<package name="material" namespace="/material" extends="struts-default">
  <action name="listMaterial" class="materialAction" method="getTypes" />
  <action name="listMaterialType" class="materialAction" method="listMaterialType" />
  <action name="addMaterialType" class="materialAction" method="addMaterialType" />
  <action name="delMaterial" class="materialAction" method="deleteMaterialType" />
  <action name="updateMaterial" class="materialAction" method="updateMaterialType" />
  <action name="getMaterialTypePath" class="materialAction" method="getMaterialTypePath" />
  <action name="findMaterial" class="materialAction" method="findMaterial" >
   <result name="success" >/page/material/materialFind.jsp</result>
  </action>

  <action name="checkFileName" class="materialAction" method="checkFileName" />
  <action name="checkMaterial" class="materialAction" method="uploadMaterial" />
  <action name="toUploaldFile" class="materialAction" method="showUploaldMaterial" >
   <result name="success">/page/material/add.jsp</result>

  </action>


</package>

</struts>

5.3 action的代码：

public class MaterialAction extends BaseActionSupport<Object> implements ServletRequestAware{

  String tempPath = MATERIAL_TEMP_DIR + _SEPARATOR + materialName;
  File dstFile = new File(tempPath);

  /** 复制到临时文件夹内 */
  int fileSize;
  try {
   fileSize = FileOperate.copyFile2FileSize(this.upload, dstFile);

｝

BaseActionSupport

package com.dvnchina.itv.advert.action;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.dispatcher.multipart.MultiPartRequestWrapper;

import com.dvnchina.itv.advert.utils.GenericsUtil;
import com.opensymphony.xwork2.ActionSupport;

public class BaseActionSupport<T> extends ActionSupport{

private static final long serialVersionUID = 1510137542622373146L;

protected final Log log = LogFactory.getLog(getClass());

protected final static String SPE = File.separator;

/**
* id主键
*/
protected Long id;

/**
* 多个id字符串，以"逗号"分割
*/
protected String ids;

/**
* 工程的contextPath
*/
protected String contextPath;

/**
* extJs的页号
*/
protected int start;

/**
* extJs的分页记录
*/
protected int limit;

/**
* 页号
*/
protected int pageNo;

/**
* 每页记录数
*/
protected int pageSize;

/**
* 表格查询参数
*/
protected String query;

/**
* json格式数据
*/
protected String dataJson;

/**
* 上传的文件
*/
protected File upload;

/**
* 上传文件类型属性
*/
protected String uploadContentType;

/**
* 上传的文件名
*/
protected String uploadFileName;

@SuppressWarnings("unchecked")
protected Class clazz;

@SuppressWarnings("unchecked")
protected Class getClazz() {
  return clazz;
}

@SuppressWarnings("unchecked")
public BaseActionSupport() {
  Class genericClass = GenericsUtil.getGenericClass(getClass());
  clazz = genericClass;
}

/**
* render Text
*/
public void renderText(String content) {
  try {
   HttpServletResponse response = ServletActionContext.getResponse();
   response.setContentType("text/plain");
   response.setCharacterEncoding("UTF-8");
   PrintWriter out = response.getWriter();
   out.print(content);
   out.flush();
   out.close();

  } catch (IOException e) {
   log.error(e);
  }
}

/**
* render HTML
*/
public void renderHtml(String content) {
  HttpServletResponse response = null;
  PrintWriter out = null;
  try {
   response = ServletActionContext.getResponse();
   response.setContentType("text/html");
   response.setCharacterEncoding("UTF-8");
   out = response.getWriter();
   out.print(content);
   out.flush();
  } catch (IOException e) {
   log.error("输出提示信息时出现异常",e);
  } finally{
   if (out!=null) {
    out.close();
   }
  }
}

/**
* render XML
*/
public void renderXML(String content) {
  try {
   HttpServletResponse response = ServletActionContext.getResponse();
   response.setContentType("text/xml");
   response.setCharacterEncoding("UTF-8");
   PrintWriter out = response.getWriter();
   out.print(content);
   out.flush();
   out.close();

  } catch (IOException e) {
   log.error(e);
  }
}

/**
* render json
*/
public void renderJson(String content) {
  try {
   HttpServletResponse response = ServletActionContext.getResponse();
   response.setContentType("text/json");
   response.setCharacterEncoding("UTF-8");
   PrintWriter out = response.getWriter();
   out.print(content);
   out.flush();
   out.close();
  } catch (IOException e) {
   log.error(e.getMessage(), e);
  }
}

public PrintWriter getWriter(String encoding) throws IOException{
     HttpServletResponse response = ServletActionContext.getResponse();
     response.setContentType("text/html");
     response.setCharacterEncoding(encoding);
     PrintWriter out = response.getWriter();
     return out;
}

/**
* 取得request
* @return
*/
public HttpServletRequest getRequest(){
  HttpServletRequest request = ServletActionContext.getRequest();
  return request;
}

/**
* 取得MultipartRequest
* 上传文件使用
* @return
*/
public MultiPartRequestWrapper getMutipartRequest(){
  MultiPartRequestWrapper mulRequest = (MultiPartRequestWrapper) ServletActionContext.getRequest();
  return mulRequest;
}

/**
* get userName from session
*/
public static String getUserNameFromSesssion() {
  String name = (String) ServletActionContext.getRequest().getSession().getAttribute("username");
  return name;

}

/**
* get conf from configuration.properties
*/
public static String getPropertiesValue(String key) {
//  PropertiesUtil.init("configuration.properties");
//  String value = PropertiesUtil.getProperty(key,"");
//  return value;
  return null;
}

/**
* 页面跳转
*/
public String forWard() throws Exception {
  return SUCCESS;
}

/**
* get project realPath
*/
public String getRealPath() {
  HttpServletRequest request = (HttpServletRequest) ServletActionContext.getRequest();
  String path = request.getSession().getServletContext().getRealPath("/");
  return path;
}

/**
* 获取Response
* @return
*/
public HttpServletResponse getResponse(){
  HttpServletResponse response = ServletActionContext.getResponse();
  return response;
}