JSF上传多个文件的文件

最新推荐文章于 2023-06-30 15:21:14 发布

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最新推荐文章于 2023-06-30 15:21:14 发布

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本文链接：https://blog.youkuaiyun.com/tree1212/article/details/4075586

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基本思路：<t:dataTable>内部放置<t:inputFileUpload>,根据设定的上传文件数，构造dataTable的List。
说明：以下代码包含了文件上传以外的相关代码，不做整理了。

实现目标：

< html >
< head >
< title > uploadfile </ title >
< meta http-equiv ="Content-Type" content ="text/html; charset=gb2312" >
< style type ="text/css" >

</ style >
< script language ="JavaScript" >

</ script >
</ head >

< body bgcolor ="#FFFFFF" text ="#000000" background ="bj.gif" >
< form name ="form1" method ="post" action ="upfile.asp" enctype ="multipart/form-data" >
   < input type ="hidden" name ="act" value ="upload" >
   < table width ="76%" border ="1" cellspacing ="0" cellpadding ="5" align ="center" bordercolordark ="#CCCCCC" bordercolorlight ="#000000" height ="182" >
     < tr bgcolor ="#CCCCCC" >
       < td height ="22" align ="left" valign ="middle" bgcolor ="#CCCCCC" >
文件上传 </ td >
     </ tr >
     < tr align ="left" valign ="middle" bgcolor ="#eeeeee" >
       < td bgcolor ="#eeeeee" height ="1" >
         < script language ="javascript" >
       function setid()
      {
      str = ' <br> ' ;
       if ( ! window.form1.upcount.value)
       window.form1.upcount.value = 1 ;
        for (i = 1 ;i <= window.form1.upcount.value;i ++ )
         str += ' 文件 ' + i + ' :<input type="file" name="file ' + i + ' " style="width:400" class="tx1"><br><br> ' ;
      window.upid.innerHTML = str;
      }
       </ script >
         < li > 需要上传的个数
           < input type ="text" name ="upcount" class ="tx" value ="1" >
           < input type ="button" name ="Button" class ="bt" onclick ="setid();" value ="· 设定 ·" >
         </ li >
       </ td >
     </ tr >
     < tr align ="center" valign ="middle" >
       < td align ="left" id ="upid" height ="32" > 文件1:
         < input type ="file" name ="file1" style ="width:403; height:20" class ="tx1" value ="" ></ td >
     </ tr >
     < tr align ="center" valign ="middle" bgcolor ="#eeeeee" >
       < td bgcolor ="#eeeeee" height ="28" >
         < input type ="submit" name ="Submit" value ="· 提交 ·" class ="bt" >
         < input type ="reset" name ="Submit2" value ="· 重置 ·" class ="bt" ></ td >
     </ tr >
   </ table >
</ form >
</ body >
</ html >

jsp：

<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >

<% @page language="java" contentType="text/html; charset=gb2312" %>

<% @taglib uri="http://java.sun.com/jsf/html" prefix="h" %>

<% @taglib uri="http://java.sun.com/jsf/core" prefix="f" %>

<% @taglib prefix="t" uri="http://myfaces.apache.org/tomahawk" %>

< f:loadBundle basename ="batsys.resources.batsys" var ="batsys" />

< h:form >

< h:panelGrid width ="100%" columns ="5" border ="1"

styleClass ="scrollerTable2" >

< f:facet name ="header" >

< h:outputText value ="#{batsys['fttx.FT1001.wjsc']}" />

</ f:facet >

< h:outputText value ="#{batsys['fttx.FT1001.ywlx']}" />

< h:selectOneMenu value ="#{FT1001.bizType}" styleClass ="SELECT" >

< f:selectItems value ="#{FT1001.bizTypeItems}" />

</ h:selectOneMenu >

< h:outputText value ="#{batsys['fttx.FT1001.filecount']}" />

< h:panelGroup >

< h:inputText value ="#{FT1001.upcount}" id ="upcount" >

< f:validateLongRange maximum ="#{FT1001.maxUpCount}" />

</ h:inputText >

< h:message for ="upcount" styleClass ="error" />

</ h:panelGroup >

< h:commandButton value ="#{batsys['fttx.FT1001.setcount']}"

action ="FT1001_1" />

< h:outputText value ="#{batsys['fttx.FT1001.sh']}" />

< h:selectOneListbox value ="#{FT1001.branchNo}" size ="1" >

< f:selectItems value ="#{FT1001.branchItems}" />

</ h:selectOneListbox >

</ h:panelGrid >

</ h:form >

< h:form enctype ="multipart/form-data" >

< t:dataTable value ="#{FT1001.fileUploadList}" var ="fileUploadList"

width ="100%" border ="1" align ="center" columnClasses ="center,center" >

< h:column >

< h:outputText value ="#{fileUploadList.xh}" />

</ h:column >

< h:column >

< t:inputFileUpload value ="#{fileUploadList.uploadedFile}"

required ="true" id ="uploadedFile" />

< h:message for ="uploadedFile" styleClass ="error" />

</ h:column >

</ t:dataTable >

< h:panelGrid width ="100" columns ="1" cellspacing ="0" cellpadding ="5"

columnClasses ="right,left" align ="center" >

< h:commandButton value ="#{batsys['GL1001.uploadfile']}"

action ="#{FT1001.storeFile}" styleClass ="button" />

</ h:panelGrid >

</ h:form >

BackingBean：

package batsys.backingbean.fttx;

import java.io.File;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.LinkedList;

import java.util.List;

import javax.faces.model.SelectItem;

import org.apache.myfaces.custom.fileupload.UploadedFile;

import batsys.biz.BSGL1001;

import batsys.biz.common.FindBranchInfo;

import batsys.biz.common.SearchEnums;

import batsys.enums.EBizType;

import ccbxj.app.AppBackingBean;

import ccbxj.app.AppContext;

import ccbxj.app.web.security.util.WebSecurityUtil;

import ccbxj.dbtable.TNBICodeTran;

import ccbxj.dbtable.TNBranch;

import ccbxj.ss.SSResource;

public class FT1001 extends AppBackingBean {

// 同时上传文件的个数

private int upcount;

// 允许同时上传文件的最大个数，初值在配置BackingBean时定义

private int maxUpCount;

private int bizType;

private String branchNo;

// 放置FT1001VO(上传文件VO)的集合

private List fileUploadList;

private List bizTypeItems = null;

private List branchItems = null;

AppContext ac = WebSecurityUtil.getAppContext();

public void setFileUploadList(List fileUploadList) {

this.fileUploadList = fileUploadList;

}

public int getUpcount() {

return upcount;

}

public void setUpcount(int upcount) {

this.upcount = upcount;

}

public int getBizType() {

return bizType;

}

public void setBizType(int bizType) {

this.bizType = bizType;

}

/**

* 遍历上传文件的集合，并批量上传到服务器磁盘

* @return null

public String storeFile() {

BSGL1001 bsgl1001 = new BSGL1001();

try {

if (fileUploadList != null) {

for (Iterator iter = fileUploadList.iterator(); iter.hasNext();) {

FT1001VO ft1001VO = (FT1001VO) iter.next();

UploadedFile uploadedFile = ft1001VO.getUploadedFile();

String of = BSGL1001.uploadFileName(uploadedFile.getName()); // 文件的原始名称

File saveFile = new File(BSGL1001.uploadPath(SSResource

.getUploadPath(), ac)

+ File.separator + of);

bsgl1001.saveFile(ft1001VO.getUploadedFile(), saveFile);

}

} catch (IOException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

/**

* 根据设定的上传文件数，构造dataTable的List

* @return List

public List getFileUploadList() {

fileUploadList = new ArrayList();

FT1001VO ft1001VO = null;

String str = "文件";

for (int i = 1; i <= upcount; i++) {

ft1001VO = new FT1001VO();

ft1001VO.setXh(str + i + ":");

fileUploadList.add(ft1001VO);

}

return fileUploadList;

}

/**

* 查询枚举表，为业务类型下拉列表准备数据

* @return List

public List getBizTypeItems() {

try {

SearchEnums se = SearchEnums.getInstance();

List bizTypeList = null;

bizTypeList = se.getEnumsByClassName(EBizType.class.getName());

bizTypeItems = new LinkedList();

if (bizTypeList != null) {

for (Iterator iter = bizTypeList.iterator(); iter.hasNext();) {

TNBICodeTran tnbicodeTran = (TNBICodeTran) iter.next();

bizTypeItems.add(new SelectItem(tnbicodeTran.getCode(),

tnbicodeTran.getName()));

}

setBizTypeItems(bizTypeItems);

}

} catch (Exception e) {

e.printStackTrace();

this.throwException(ac, e, this.getClass().getName(),

"getBizTypeItems", "查询业务类型的下拉列表时抛出Exception");

}

return bizTypeItems;

}

public void setBizTypeItems(List bizTypeItems) {

this.bizTypeItems = bizTypeItems;

}

/**

* 根据部门编码取得下级部门列表，用于文件上传交易第一个页面的部门(所号)列表

* @return List

public List getBranchItems() {

try {

List branchList = null;

branchList = FindBranchInfo.getInstance().getBranchList("xj",

ac.getBranchCode());

branchItems = new LinkedList();

if (branchList != null) {

for (Iterator iter = branchList.iterator(); iter.hasNext();) {

TNBranch branch = (TNBranch) iter.next();

branchItems.add(new SelectItem(branch.getBranchNo(), branch

.getBranchNo()

+ "(" + branch.getBranchName() + ")"));

}

setBranchItems(branchItems);

}

} catch (Exception e) {

e.printStackTrace();

this.throwException(ac, e, this.getClass().getName(),

"getBranchItems", "查询部门列表时抛出Exception，当前机构号为："

+ ac.getBranchCode());

}

return branchItems;

}

public void setBranchItems(List branchItems) {

this.branchItems = branchItems;

}

public String getBranchNo() {

return branchNo;

}

public void setBranchNo(String branchNo) {

this.branchNo = branchNo;

}

public int getMaxUpCount() {

return maxUpCount;

}

public void setMaxUpCount(int maxUpCount) {

this.maxUpCount = maxUpCount;

}

VO：

package batsys.backingbean.fttx;

import org.apache.myfaces.custom.fileupload.UploadedFile;

/**

* 类名: FT1001VO

* <p>

* 功能说明：存储dataTable的一行数据

* @version 1.0 2006-9-29

public class FT1001VO {

// 文件上传的序号，如文件1，文件2

private String xh;

private UploadedFile uploadedFile;

public UploadedFile getUploadedFile() {

return uploadedFile;

}

public void setUploadedFile(UploadedFile uploadedFile) {

this.uploadedFile = uploadedFile;

}

public String getXh() {

return xh;

}

public void setXh(String xh) {

this.xh = xh;

}

保存文件到硬盘的方法：

/**

* saveFile 保存文件到硬盘

* @param uploadedFile

* UploadedFile

* @param savefile

* File 此文件必须创建存在

* @throws IOException

public void saveFile(UploadedFile uploadedFile, File savefile)

throws IOException {

byte buff[] = null;

File md = savefile.getParentFile();

if (!md.exists()) {

md.mkdirs();

}

long fs = uploadedFile.getSize();

FileOutputStream fos = new FileOutputStream(savefile);

if (fs > 1025 * 1024 * 10) { // the upload file is more than 10M byte

buff = new byte[1025 * 500]; // set buff 500k byte

} else {

buff = new byte[1025 * 100]; // set buff 100k byte

}

InputStream is = uploadedFile.getInputStream();

int rb = 0;

rb = is.read(buff);

while (rb > 0) {

fos.write(buff, 0, rb);

rb = is.read(buff);

}

fos.close();

}

faces-config.xml的配置片段：

< managed-bean >

< managed-bean-name > FT1001 </ managed-bean-name >

< managed-bean-class >

batsys.backingbean.fttx.FT1001

</ managed-bean-class >

< managed-bean-scope > session </ managed-bean-scope >

< managed-property >

< property-name > upcount </ property-name >

< value > 1 </ value >

</ managed-property >

< managed-property >

< property-name > maxUpCount </ property-name >

< value > 10 </ value >

</ managed-property >

</ managed-bean >

< navigation-case >

< from-outcome > FT1001_1 </ from-outcome >

< to-view-id > /jsp/FT1001_1.jsf </ to-view-id >

</ navigation-case >