亚洲av日韩av无码尤物_ commonds-fileupload-kirin -JavaEye技術(shù)社區

upload.java

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import java.util.regex.*;
import org.apache.commons.fileupload.*;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.fileupload.servlet.*;
import org.apache.commons.fileupload.disk.*;
import com.axtrip.util.*;
public class Upload extends HttpServlet {
private String uploadPath = "C:\\upload\\"; // 用于存放上傳文件的目錄
private String tempPath = "C:\\upload\\temp\\"; // 用于存放臨時(shí)文件的目錄
/**
* Constructor of the object.
*/
public Upload() {
super();
}
/**
* Destruction of the servlet.
*/
public void destroy() {
super.destroy();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html; charset=GB2312");
PrintWriter out=response.getWriter();
try {
System.out.println("start");
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setSizeMax(4 * 1024 * 1024);
//允許上傳的文件大小,4M
factory.setSizeThreshold(1 * 1024 * 1024);
//設置最多只允許在內存中存儲的數據,單位:字節
factory.setRepository(new File(tempPath));
//文件大小超過(guò)getSizeThreshold()的值時(shí)數據存放在硬盤(pán)的目錄
String[] errorType = { "exe", "com", "cgi", "asp" };
//過(guò)濾掉的文件類(lèi)型
List uploadlist=upload.parseRequest(request);
//開(kāi)始讀取上傳信息
Iterator iter=uploadlist.iterator();
while(iter.hasNext()){
FileItem item=(FileItem)iter.next();
if(!item.isFormField()){//忽略其他不是文件域的所有表單信息
String passandfilename = item.getName();
//取到客戶(hù)端完整路徑+文件名 c:/111.jpg
String filename=FilenameUtils.getName(passandfilename);
//取到文件名 111.jpg
String filetype = getFiletype(filename);//取到文件類(lèi)型 jpg
boolean flag = false;//判斷是否有非法的文件類(lèi)型
for(int i =0; i<=errorType.length-1; i++){
if (filetype.equals(errorType[i])){
flag = true;
}
}
if(flag)break;//如果有非法文件,退出
if(!filename.equals("")){
filename = getNewFileNameByTime(filename);//文件重命名
String savepath=uploadPath+filename;
out.println("savepath is "+savepath);
File saveFilepath=new File(savepath);
item.write(saveFilepath);
}else{
out.print("沒(méi)東西");
}
}
}
} catch (FileUploadBase.SizeLimitExceededException e) {
out.println("文件太大了吧");
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public void init() throws ServletException {
}
//取文件名后綴
public static String getFiletype(String fileName) {
String type = "";
if (fileName == null || fileName.equals(""))
return type;
int position = fileName.lastIndexOf(".");
if (position != -1) {
type = fileName.substring(position + 1 , fileName.length());
}
return type;
}
//將文件重命名
synchronized public String getNewFileNameByTime(String fileName){
Date dt = new Date();
String fType = getFiletype(fileName);
String newFileName = new Date().getTime()+ Math.random() + "." + fType;
return newFileName ;
}
}

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