webwork 多图片上传

近期用webwork做项目，有上传文件操作，在此记录一下，有部分内容来自网络，javascript脚本只支持IE，不支持firefox。

 

一、 FileUploadAction.java 文件；

 

package ebizserve.cpd.view.action;

 

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

 

import org.apache.log4j.Logger;

 

import ebizserve.util.FileUtil;

 

public class FileUploadAction extends BaseAction {

 

    private Logger logger = Logger.getLogger(FileUploadAction. class );

 

    private static final long serialVersionUID = 5943699833329252614L;

 

    // 对应 <input type=file name=fileImages /> 中的 file 控件 name 名称；

    private File[] fileImages ;

 

    // 获取 文件名称为 fileImages 的 file 控件上传文件的文件名称；

    private String[] fileImagesFileName ;

 

    // 默认调用方法

    public String execute() {

 

       File[] newFileImages = FileUtil.renameToFiles( fileImagesFileName ,

              fileImages );

 

       if (newFileImages != null && newFileImages. length > 0) {

 

           for (File file : newFileImages) {

              try {

                  if (!FileUtil.verifyFile(file, new String[] { "jpg" , "gif" ,

                         "jpeg" , "png" })) {

                     this .addFieldError( "errorimage" ,

                            "Error:Invalid File Type" );

                     return "create" ;

                  }

              } catch (Exception e) {

                  e.printStackTrace();

              }

           }

 

           for (File fileImage : newFileImages) {

              try {

                  FileInputStream fileIn;

                  int filesize = 0;

 

                  String imageName = fileImage.getName();

                  fileIn = new FileInputStream(fileImage);

                  filesize = fileIn.available();

 

                  logger .info( " 获得文件名称 : " + imageName);

                  logger .info( " 获得文件大小： " + filesize);

 

                  FileUtil.saveFile(fileImage, imageName,

                         getProductFilePath());

 

              } catch (FileNotFoundException e) {

                  e.printStackTrace();

              } catch (IOException e) {

                  e.printStackTrace();

              } catch (Exception e) {

                  e.printStackTrace();

              }

           }

       }

 

       return SUCCESS ;

    }

 

    // 对应的 getXXX()/setXXX() 方法；

    public File[] getFileImages() {

       return fileImages ;

    }

 

    public void setFileImages(File[] fileImages) {

       this . fileImages = fileImages;

    }

 

    public String[] getFileImagesFileName() {

       return fileImagesFileName ;

    }

 

    public void setFileImagesFileName(String[] fileImagesFileName) {

       this . fileImagesFileName = fileImagesFileName;

    }

 

}

 

 

 

二、 BaseAction.java 文件；

 

package ebizserve.cpd.view.action;

 

import java.io.File;

 

import com.opensymphony.xwork.ActionSupport;

 

public class BaseAction extends ActionSupport {

 

    private static final long serialVersionUID = -2796680436059696842L;

 

    private static final String FILE_PATH = "d:/upload/" ;  // 文件 realpath;

 

    public String getProductFilePath() {

       File filesPath = new File( FILE_PATH );

       if (!filesPath.exists()) { // (canRead()

           filesPath.mkdirs(); // mkdirs()

 

       }

       return FILE_PATH ;

    }

 

}

 

 

 

三、 FileUtil.java 文件；

package ebizserve.util;

 

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

 

public class FileUtil {

 

    // 重命名文件；

    public static File[] renameToFiles(String[] fileNames, File[] files) {

       File[] retFiles = null ;

       if (fileNames != null && fileNames. length > 0) {

           retFiles = new File[fileNames. length ];

 

           for ( int i = 0, n = fileNames. length ; i < n; i++) {

              File dist = new File(fileNames[i]);

              files[i].renameTo(dist);

              retFiles[i] = dist;

           }

       }

       return retFiles;

    }

 

    // save 文件；

    public static long saveFile(File file, String fileName, String filePath)

           throws Exception {

       if (file == null ) {

           return 0;

       }

 

       File filepath = new File(filePath);

       if (!filepath.isDirectory())

           filepath.mkdirs();

       File filedesc = new File(filepath, fileName);

 

       return copyFile(file, filedesc);

    }

 

    // copy 文件；

    public static long copyFile(File fromFile, File toFile) {

       long len = 0;

 

       InputStream in = null ;

       OutputStream out = null ;

       try {

           in = new FileInputStream(fromFile);

           out = new FileOutputStream(toFile);

           byte [] t = new byte [1024];

           int ii = 0;

           while ((ii = in.read(t)) > 0) {

              out.write(t, 0, ii);

              len += ii;

           }

 

       } catch (IOException e) {

           e.printStackTrace();

 

       } finally {

           if (in != null ) {

              try {

                  in.close();

              } catch (Exception e) {

                  e.printStackTrace();

              }

           }

 

           if (out != null ) {

              try {

                  out.close();

              } catch (Exception e) {

                  e.printStackTrace();

              }

           }

 

       }

 

       return len;

    }

 

    // 验证文件正确性 ;

    public static boolean verifyFile(File file, String[] exts) throws Exception {

       boolean flag = false ;

       if (file != null ) {

           String ext = getExtension(file.getName());

           if (ext == null ) {

              return false ;

           }

           if (exts != null && exts. length > 0) {

 

              if (exts[0].equals( "*.*" ))

                  return true ;

              for ( int i = 0; i < exts. length ; i++) {

 

                  if (ext.equalsIgnoreCase(exts[i])) {

                     flag = true ;

                     break ;

                  }

              }

           }

       }

 

       return flag;

 

    }

 

    // 取得文件扩展名 ;

    public static String getExtension(String fileName) {

 

       int newEnd = fileName.length();

       int i = fileName.lastIndexOf( '.' , newEnd);

       if (i != -1) {

           return fileName.substring(i + 1, newEnd);

       } else {

           return null ;

       }

    }

}

 

 

 

四、 Web.xml 配置文件；

<? xml version = "1.0" encoding = "UTF-8" ?>

< web-app version = "2.4" xmlns = "http://java.sun.com/xml/ns/j2ee"

    xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation = "http://java.sun.com/xml/ns/j2ee

    [url]http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd[/url]" >

    < welcome-file-list >

       < welcome-file > index.jsp </ welcome-file >

    </ welcome-file-list >

 

    < filter >

       < filter-name > webwork </ filter-name >

       < filter-class >

           com.opensymphony.webwork.dispatcher.FilterDispatcher

       </ filter-class >

    </ filter >

    < filter-mapping >

       < filter-name > webwork </ filter-name >

       < url-pattern > *.action </ url-pattern >

    </ filter-mapping >

 

</ web-app >

 

 

五、 xwork.xml 配置文件；

<? xml version = "1.0" encoding = "UTF-8" ?>

<! DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.1.1 //EN" "http://www.opensymphony.com/xwork/xwork-1.1.1.dtd" >

< xwork >

    < include file = "webwork-default.xml" />

    < package name = "default" extends = "webwork-default" >

       < interceptors >

           < interceptor-stack name = "validationStack" >

              < interceptor-ref name = "validation" />

              < interceptor-ref name = "component" />

              < interceptor-ref name = "defaultStack" />

           </ interceptor-stack >

       </ interceptors >

       < default-interceptor-ref name = "validationStack" />

    </ package >

    <!-- 引用多个 xwork_*.xml -->

    < include file = "action/xwork_upload.xml" />

</ xwork >

 

 

六、 xwork_upload.xml 配置文件；

<? xml version = "1.0" encoding = "UTF-8" ?>

<! DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.1.1 //EN" "http://www.opensymphony.com/xwork/xwork-1.1.1.dtd" >

< xwork >

    < package name = "productbase" extends = "default" >

 

       < interceptors >

           < interceptor name = "upload"

              class = "com.opensymphony.webwork.interceptor.FileUploadInterceptor" >

              < param name = "maximumSize" > 10000000 </ param >

           </ interceptor >

           < interceptor-stack name = "uploadStack" >

              < interceptor-ref name = "upload" />

              < interceptor-ref name = "defaultStack" />

           </ interceptor-stack >

       </ interceptors >

       < default-interceptor-ref name = "WSStack" />

 

       < action name = "doUpload"

           class = "ebizserve.cpd.view.action.FileUploadAction" >

           < result name = "success" type = "dispatcher" >

              < param name = "location" > /fileupload/success.jsp </ param >

           </ result >

           < interceptor-ref name = "params" /> <!-- 将请求中的参数设置到 Action 中去 -->

           < interceptor-ref name = "basicStack" />

           < interceptor-ref name = "uploadStack" />

           < interceptor-ref name = "model-driven" />

       </ action >

 

    </ package >

</ xwork >

 

 

 

 

 

七、 webwork.properties 属性文件；

# 保存的目录缺省使用 javax.servlet.context.tempdir

webwork.multipart.saveDir= javax.servlet.context.tempdir

webwork.multipart.maxSize= 4097152

 

# 文件上传设置

# 用来处理 HTTP POST 请求 , 编码使用 MIME-type multipart/form-data 方式的

webwork.multipart.parser= jakarta

 

# 指定 locale, 编码

webwork.i18n.encoding= UTF-8

webwork.custom.i18n.resources= messages,acl,definition

 

# 开发模式设定

webwork.devMode = false

 

# 配置自动更新设定

webwork.configuration.xml.reload= true

 

# 国际化资源设定

webwork.i18n.reload= true

 

 

访问方式：[url]http://localhost:8080/webworkupload/fileupload/upload.jsp[/url]]