Servlet上传zip文件并解压
根据需要写一个上传文件的小程序，比较简单就用serlvet写。首先是要上传文件到服务器，然后是解压删除zip包。同时写一个监听器，用于进度条展现上传进度。
首先是页面Upload.jsp：前台需要上传一个文件和上传文件名称（对应服务器的相应目录），Ajax提交请求以实现进度条变化。
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
然后是文件上传的serlvet：UploadServletMy.java request请求包含了文件类型的input和select下拉菜单，遍历判断顺序应该和jsp页面顺序对应，保证pathR的值
不为空。
package com.helloweenvsfei.servlet;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadServletMy extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setCharacterEncoding("UTF-8");
response.getWriter().println("请以 POST 方式上传文件");
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
File file1 = null;
//String description1 = null;
String pathL ="E:/wz/webhomenew/mwr2016/zzsc/tjgb/";
/*String pathR = request.getParameter("username");
System.out.println("select："+pathR);
String path =pathL+pathR;*/
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
DiskFileItemFactory factory= new DiskFileItemFactory();
//临时文件暂存的路径
File tmpFile = new File(getServletContext().getRealPath("/WEB-INF/")+"/tmp");
if(!tmpFile.exists())
{
tmpFile.mkdir();
}
//缓存临时文件
factory.setRepository(tmpFile);
ServletFileUpload sfu= new ServletFileUpload(factory);
//文件上传进度的监听
UploadProgressListener listener=new UploadProgressListener(request);
sfu.setProgressListener(listener);
// 使用 DiskFileUpload 对象解析 request
// DiskFileUpload diskFileUpload = new DiskFileUpload();
try {
// 将 解析的结果 放置在 List 中
List
out.println("遍历所有的 FileItem ...
");
// 遍历 list 中所有的 FileItem
System.out.println("request请求信息数:"+list.size());;
for(FileItem fileItem : list){
if(fileItem.isFormField()){
// 如果是 文本域
pathR=new String(fileItem.getString().getBytes("iso8859-1"),"utf-8")+"/";
System.out.println("普通内容："+fileItem.getFieldName()+"值为："+pathR);
}
else{
// 否则，为文件域
if("file1".equals(fileItem.getFieldName())){
// 客户端文件路径构建的 File 对象
File remoteFile = new File(new String(fileItem.getName().getBytes(), "UTF-8"));
out.println("遍历到 file1 ...
"+new String(fileItem.getName().getBytes(), "UTF-8"));
// out.println("客户端文件位置: " + remoteFile.getAbsolutePath() + "
");
// 服务器端文件，放在 upload 文件夹下
System.out.println(remoteFile.getName());
/* Pattern p = Pattern.compile("[\u4e00-\u9fa5]");
Matcher m = p.matcher(remoteFile.getName());
//判断上传文件名字是否包含中文
if(m.find()){
out.println("文件名称不符合规则");
out.println("返回上一页");
return;
} */
System.out.println("pathR:"+pathR);
file1 = new File("D:/temp/aaa/"+remoteFile.getName());
if(file1.exists()){
System.out.println("文件已存在，路径为："+file1.getAbsolutePath());
out.println("文件已存在。");
out.println("返回上一页");
return;
}
file1.createNewFile();
System.out.println(file1.getAbsolutePath());
System.out.println(remoteFile.getName());
file1.getParentFile().mkdirs();
file1.createNewFile();
// 写文件，将 FileItem 的文件内容写到文件中
InputStream ins = fileItem.getInputStream();
FileOutputStream ous = new FileOutputStream(file1);
try{
byte[] buffer = new byte[1024];
int len = 0;
while((len=ins.read(buffer)) > -1){
ous.write(buffer, 0, len);
}
ous.close();
out.println("已保存文件" + file1.getAbsolutePath() + "
");
} finally{
ins.close();
}
}
}
}
out.println("Request 解析完毕");
} catch (Exception e) { //FileUploadException
// TODO Auto-generated catch block
e.printStackTrace();
e.getMessage();
}
HttpSession session=request.getSession();
session.setAttribute("file", file1);
session.setAttribute("pathR", pathR);
request.getRequestDispatcher("/servlet/FileUnzipServlet").forward(request,response);
out.flush();
out.close();
}
}
接着是解压zip的serlvet：FileUnzipServlet.java
package com.helloweenvsfei.servlet;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.doczip.ZipDecompressing;
public class FileUnzipServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setCharacterEncoding("UTF-8");
response.getWriter().println("请以 POST 方式上传文件");
}
@SuppressWarnings("unchecked")
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
HttpSession session=request.getSession();
File file1 = (File) session.getAttribute("file");
String pathR = (String) session.getAttribute("pathR");
//上传后解压zip文件
if(file1.getAbsolutePath().contains(".zip")){
File zipFile = new File(file1.getAbsolutePath());
String pathZip = "D:/temp/aaa/";
File pathFile = new File(pathZip);
File temp = null;
File[] filelist = pathFile.listFiles();
String zipFileName = zipFile.getName();
String prefix=zipFileName.substring(zipFileName.lastIndexOf("."));
String checkname =zipFileName.substring(0, zipFileName.length()-prefix.length());
System.out.println("名字名字"+checkname);
out.println("");
out.println("");
out.println("
out.println(" ");
out.println(" ");
out.println("
");
out.println("
out.println(" ");
out.println(""); }
}
}
package com.helloweenvsfei.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* 文件上传进度状态类
* @author
*
*/
public class fileUploadStatusServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request,response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
HttpSession session=request.getSession();
Object status = session.getAttribute("key");//获取上传进度百分比
if(status==null) return;
PrintWriter out = response.getWriter();
out.write(status.toString());
out.flush();
out.close();
}
}
package com.helloweenvsfei.servlet;
import java.text.NumberFormat;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.commons.fileupload.ProgressListener;
public class UploadProgressListener implements ProgressListener {
private HttpSession session;
private long kiloBytes=-1;
public UploadProgressListener(HttpServletRequest request) {
this.session = request.getSession();
}
//pBytes
public void update(long PBytesRead, long PContentLength, int PItems) {
Long KBytes=PBytesRead/1024;
if(kiloBytes==KBytes)
{
return;
}
kiloBytes=KBytes;
System.out.println("正在读取项目"+KBytes);
if(PContentLength==-1)
{
System.out.println("目前已经读取了"+PBytesRead+"字节数据");
}
else
{
System.out.println("目前已经读取了"+PContentLength+"中的"+PBytesRead+"字节数据");
}
//获取上传进度的百分比
double read=((double)KBytes)/(PContentLength/1024);
NumberFormat nf=NumberFormat.getPercentInstance();
session.setAttribute("key", nf.format(read));
System.out.println("进度时间:"+nf.format(read));
}
}