为Struts2添加COS支持(多文件上传)

在工程中加入cos.jar

首先在Struts.xml文件中配置

  <bean type="org.apache.struts2.dispatcher.multipart.MultiPartRequest"
  class="com.jongo.fea.CosMultiPartRequest" name="cos" scope="prototype"/>

  <constant name="struts.multipart.parser" value="cos"/>

其中com.fea.action.CosMultiPartRequest是一个必须实现org.apache.struts2.dispatcher.multipart.MultiPartRequest的类.它会对上传的表单进行解析

代码如下:

package com.fea.action;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.List;
import java.util.Vector;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.dispatcher.multipart.MultiPartRequest;

import com.oreilly.servlet.MultipartRequest;
import com.oreilly.servlet.multipart.FilePart;
import com.oreilly.servlet.multipart.MultipartParser;
import com.oreilly.servlet.multipart.ParamPart;
import com.oreilly.servlet.multipart.Part;
public class CosMultiPartRequest implements MultiPartRequest {

 private ArrayList<File> alFile;
 private Hashtable files ;
 private ArrayList<String> fileNames;
 private ArrayList<String> contentType;
 private ArrayList<String> fileSystemName;
 private Hashtable<String,ArrayList> parameters;
 private Hashtable<String,ArrayList> filePara ;
 private ArrayList<String> paraValues ;
 public String[] getContentType(String arg0) {
  ArrayList<String> aList = (ArrayList<String>)files.get(arg0+"_ContentType");
  String[] str = new String[aList.size()];
  for(int i = 0 ; i <aList.size();i++){
   str[i] = aList.get(i);
  }
  return str;
 }

 public List getErrors() {
  return Collections.EMPTY_LIST;
 }

 public File[] getFile(String arg0) {
  ArrayList<File> aList  = (ArrayList<File>)files.get(arg0);
  File[] file  =new File[aList.size()];
  for(int i =0 ;i<aList.size();i++){
   file[i]= aList.get(i);
  }
  return file;
 }

 public String[] getFileNames(String arg0) {
  ArrayList<String> aList  =(ArrayList<String>)files.get(arg0+"_name");
  String[] stt = new String[aList.size()];
  for(int i = 0 ;i <aList.size();i++){
   stt[i] = aList.get(i);
  }
  return stt;
 }

 public Enumeration<String> getFileParameterNames() {
  return filePara.keys();
 }

 public String[] getFilesystemName(String arg0) {
  ArrayList<String> arrayList  =(ArrayList<String>)files.get(arg0+"_SysName");
  String[] ss = new String[arrayList.size()];
  for(int i = 0 ;i <arrayList.size();i++){
   ss[i] = arrayList.get(i);
  }
  return ss;
 }

 public String getParameter(String arg0) {
  if(parameters.keySet().contains(arg0))
   return arg0;
  return "";
 }

 public Enumeration<String> getParameterNames() {
  return parameters.keys();
 }

 public String[] getParameterValues(String arg0) {

  ArrayList<String> al = parameters.get(arg0);
  String[] str = new String[al.size()];
  for(int i = 0 ;i <al.size();i++){
   str[i] = al.get(i);
  }
  return str;
 }

 public void parse(HttpServletRequest request, String saveDir) throws IOException {

  MultipartParser mp = new MultipartParser(request,1024*1024*10);
  mp.setEncoding("utf-8");
  Part part;

  files= new Hashtable<String, Object>();
  alFile = new ArrayList<File>();
  fileNames = new ArrayList<String>();
  fileSystemName = new ArrayList<String>();
  contentType = new ArrayList<String>();
  filePara = new Hashtable<String, ArrayList>();
  paraValues = new ArrayList<String>();
  parameters = new Hashtable<String, ArrayList>();

  for(int i = 0 ;(part =mp.readNextPart())!=null;i++){
   if(part.isFile()){
    FilePart fp = (FilePart)part;

    alFile = (ArrayList)files.get(fp.getName());
    if(alFile==null||alFile.size()<1){
     alFile =new ArrayList();
    }
    File fil = new File(saveDir+fp.getFileName());
    fp.writeTo(fil);
    alFile.add(fil);


    fileNames =(ArrayList)files.get(fp.getName()+"_name");
    if(fileNames==null||fileNames.size()<1){
     fileNames =new ArrayList<String>();
    }
    fileNames.add(fp.getFileName());


    fileSystemName =(ArrayList)files.get(fp.getName()+"_SysName");
    if(fileSystemName==null||fileSystemName.size()<1){
     fileSystemName =new ArrayList<String>();
    }
    fileSystemName.add(fp.getFilePath());

    contentType =(ArrayList)files.get(fp.getName()+"_ContentType");
    if(contentType==null||contentType.size()<1){
     contentType =new ArrayList<String>();
    }
    contentType.add(fp.getContentType());

 

    files.put(fp.getName(), alFile);
    files.put(fp.getName()+"_name", fileNames);
    files.put(fp.getName()+"_SysName", fileSystemName);
    files.put(fp.getName()+"_ContentType", contentType);
    filePara.put(fp.getName(),alFile);
   }else if(part.isParam()){
    ParamPart pp =(ParamPart)part;
    paraValues =parameters.get(pp.getName());
    if(paraValues==null||paraValues.size()<1){
     paraValues = new ArrayList<String>();
    }
    paraValues.add(pp.getStringValue());
    parameters.put(pp.getName(), paraValues);

   }else{

   }
  }
 }

}

在Action 中和Jakarta的上传处理一模一样.

评论

3 楼 menghuannvxia 2014-08-22  

求action中的代码

2 楼 menghuannvxia 2014-08-22  

是完全一样吗，cos在action中的处理采用Jakarta的方式吗，应该不是吧

1 楼 menghuannvxia 2014-08-22  

你是说action中还是采用Jakarta的形式，就能实现cos吗，我现在也用这个，想请教你问题，我qq：1018589834