很多人都会的：怎样把客户端的文件上传到服务器上某个固定的文件夹

<form method="POST" action="saveFile.jsp" enctype="multipart/form-data" name="fileInfo">
<P><strong><font face="宋体">
文件类型：Word文档、Exe文件或Zip文件</font></strong></P> 
    软件名称:<INPUT name="recordNumber">    
       <P><input type="file" name="doc" size="60"></P> 
       <p><input type="submit" onclick="checkDocType(this.form); return MM_returnvalue" name="submit" value="正式提交"></p>  
</form>
saveFile.jsp<html>
<head>
<title>软件上传</title>
<%@ page contentType="text/html;charset=gb2312"%>
<jsp:useBean id="kSave" scope ="session" class="up.KingUpload" />
</head>
<body aLink=#3333ff bgColor=#edfafc leftMargin=0 link=#3333ff text=#000066 topMargin=0 vLink=#3333ff MARGINHEIGHT="0" MARGINWIDTH="0">
<%
try{
kSave.init(request,response);
kSave.setPath(application.getRealPath(""),"Files/");
kSave.clean();
}catch(Exception e){
out.println(e.getMessage());
}

%>package up;import java.io.*;
import java.sql.*;
import javax.servlet.*;public class KingUpload
{    public KingUpload()
    {
        message = "no message";
    }    public void KingUpload()
    {
    }    public void init(ServletRequest servletrequest, ServletResponse servletresponse)
    {
        req = servletrequest;
        res = servletresponse;
    }    public void setPath(String s, String s1)
    {
        mainPath = s.replace('\\', '/');
        lowPath = s1.replace('\\', '/');
        System.out.println("path=" + mainPath + lowPath);
    }    public void saveTo()
    {
        byte abyte0[] = new byte[200];
        byte abyte1[] = new byte[4096];
        byte abyte2[] = new byte[1];
        String s6 = "";
        long l = req.getContentLength();
        String s = req.getContentType();
        System.out.println("contentlength=" + l);
        System.out.println("contentType=" + s);
        boolean flag = false;
        int j = 0;
        int k = 0;
        String s4 = "";
        String s5 = "";
        String s3 = "";
        try
        {
            in = req.getInputStream();
        }
        catch(IOException ioexception) { }
        for(int i1 = 1; i1 < 9; i1++)
            try
            {
                int i = in.readLine(abyte0, 0, 200);
                j += i;
                String s1 = new String(abyte0, 0, i);
                System.out.print(s1);
                if(i1 == 1)
                {
                    byte abyte3[] = new byte[i - 2];
                    for(int k2 = 0; k2 < i - 2; k2++)
                        abyte3[k2] = abyte0[k2];                    s3 = new String(abyte3);
                }
                if(i1 == 4)
                {
                    s4 = new String(abyte0, 0, i - 2);
                    System.out.println("Append:studentID=" + s4);
                }
                if(i1 == 6)
                {
                    String s2 = new String(abyte0, i - 6, 3);
                    s2 = s2.toLowerCase();
                    if(s2.equals("doc"))
                        k = 1;
                    else
                    if(s2.equals("zip"))
                        k = 2;
                    else
                    if(s2.equals("exe"))
                        k = 3;
                    else
                        k = 4;
                }
            }
            catch(Exception exception) { }        System.out.println("File Data Begin,tLen=" + j);
        if(k == 1)
            s5 = s4 + ".doc";
        else
        if(k == 2)
            s5 = s4 + ".zip";
        else
        if(k == 3)
            s5 = s4 + ".exe";
        else
            s5 = s4;
        s6 = lowPath + s5;
        try
        {
            String s7 = mainPath + s6;
            outfile = new FileOutputStream(s7, false);
        }
        catch(IOException ioexception1)
        {
            System.out.println("file create error!" + ioexception1.getMessage());
        }
        long l1 = l - (long)j - 200L;
        long l2 = (int)((double)l1 / 4096D);
        long l3 = l1 - l2 * 4096L;
        if(l1 > 0x800000L)
        {
            try
            {
                outfile.close();
                File file = new File(mainPath + s6);
                if(file.exists())
                    file.delete();
                l1 = in.skip(l1);
            }
            catch(Exception exception1)
            {
                System.out.println("file close error");
            }
            message = "\u7CFB\u7EDF\u4E0D\u63A5\u53D7\u5927\u4E8E8M\u7684\u6587\u4EF6!";
        }
        else
        {
            try
            {
                System.out.println("block number=" + l2);
                System.out.println("remain=" + l3);
                for(int j1 = 0; (long)j1 < l2; j1++)
                {
                    for(int i3 = 0; i3 < 4096; i3++)
                    {
                        in.read(abyte2, 0, 1);
                        abyte1[i3] = abyte2[0];
                    }                    outfile.write(abyte1);
                    System.out.print(".");
                }                byte abyte4[] = new byte[(int)l3];
                for(int k1 = 0; (long)k1 < l3; k1++)
                {
                    in.read(abyte2, 0, 1);
                    abyte4[k1] = abyte2[0];
                }                outfile.write(abyte4);
                for(int i2 = 0; i2 < 200; i2++)
                {
                    in.read(abyte2, 0, 1);
                    abyte0[i2] = abyte2[0];
                }                char ac[] = new char[200];
                for(int j2 = 0; j2 < 200; j2++)
                    ac[j2] = (char)abyte0[j2];                String s8 = new String(ac);
                int j3 = s8.indexOf(s3);
                System.out.println("last=" + j3);
                outfile.write(abyte0, 0, j3 - 2);
                outfile.close();
                saveInfoToDB(s4, k, s6);
                message = "\u6587\u4EF6\u63D0\u4EA4\u6210\u529F\uFF01";
            }
            catch(IOException ioexception2)
            {
                System.out.println("data-transfer or file-close error");
            }
        }
    }    public void clean()
    {
        req = null;
        res = null;
    }    
    ServletRequest req;
    ServletResponse res;
    int recordNumber;
    ServletInputStream in;
    FileOutputStream outfile;
    String mainPath;
    String lowPath;
    public String message;
}自己在研究研究吧

解决方案 »

  1.   

    按照我的，把路径改一下就可以了：）<%@ page contentType="text/html;charset=gb2312" %>
    <%@include file="protect.jsp"%>
    <%@ page language="java" import="com.jspsmart.upload.*"%>
    <%@ page import="java.util.Date" %>
    <%@ page import="java.sql.*"%>
    <%@ page import="java.lang.*" %><jsp:useBean id="mySmartUpload" scope="page" class="com.jspsmart.upload.SmartUpload" />
    <jsp:useBean id="sqlbean" scope="page" class="beans.sql_data"/><HTML>
    <link rel="stylesheet" type="text/css" href="../bbs/bbs03.css">
    <BODY BGCOLOR="white"><H3>文件上传结果：</H3>
    <HR><% 
    mySmartUpload.initialize(pageContext);
    mySmartUpload.upload();
    com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(0);
    if (!myFile.isMissing())
      {

                 String myfilename= null;
                 String sql="";
                 myfilename=myFile.getFileName();
         String fname =myFile.getFileName();
         String  suffix=myfilename.substring(0,myfilename.lastIndexOf('.'));
         String  suffix1=myfilename.substring(myfilename.lastIndexOf('.'));
                      String explain=(String)mySmartUpload.getRequest().getParameter("text");
                 
                 explain=new String(explain.getBytes("UTF-8"),"UTF-8");   
                 
                 String ts="/product/"+fname;
                 myFile.saveAs(ts);
         String filename=myFile.getFileName();
         out.println("说明： " + explain+ "<BR>");
         out.println("文件大小： " + myFile.getSize() + "<BR>");
         out.println("文件名称：" + fname+ "<BR>");
                 out.println("文件类型：" + myFile.getFileExt() + "<BR>");
         out.println("本地文件路径： " + myFile.getFilePathName() + "<BR>");
                 sql="insert into upload(id,explain,filename) values(se_dzzw.nextval,'"+explain+"','"+fname+"')";
                 sqlbean.executeQuery(sql);
                 out.println("<font color=red>上传数据库成功！</font>");
             
          }%><p align="center"> 
      <input type="button" name="Submit" value="返回" onClick="history.back()">
    </p></BODY>
    </HTML>
      

  2.   

    注意，我的数据库：oracle，所以你看到ID是序列的