求java上传图片、文件(音乐，压缩文件，文本之类的)代码

贴段代码给你。要给分哦！！
servletimport java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.Calendar;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;public class Upload 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 {
request.setCharacterEncoding("UTF-8");
javax.servlet.ServletInputStream inputStream = request.getInputStream();
int position=-1;
FileOutputStream outputStream = null;
byte[] buffer = new byte[1024];
position=inputStream.readLine(buffer, 0, buffer.length);
String breakStr = "";
String objRef = "";
if(position!=-1){
breakStr = new String(buffer,0,28);
objRef = new String(buffer,29,position);
System.out.println(breakStr);
System.out.println(objRef);
}
position = inputStream.readLine(buffer, 0, buffer.length);
String upFileName = "";
String fileType = "";
if(position!=-1){
upFileName = new String(buffer,0,position);
System.out.println(upFileName);
int fileNamePosition = 0;
if((fileNamePosition=upFileName.indexOf("filename=\""))!=-1){
fileType=upFileName.substring(fileNamePosition).split("\"")[1];
outputStream=new FileOutputStream("d://Upload"
+ Calendar.getInstance().getTimeInMillis()+ fileType);
}
}
position = inputStream.readLine(buffer, 0, buffer.length);
String type="";
if(position!=-1){
type = new String(buffer,0,position);
System.out.println(type);
}
String isBreakStr="";
inputStream.readLine(buffer, 0, buffer.length);
while((position=inputStream.readLine(buffer, 0, buffer.length))!=-1){
isBreakStr = new String(buffer, 0, position);
if (isBreakStr.length() > 28
&& isBreakStr.substring(0, 28).equals(breakStr)) {
break;
}
outputStream.write(buffer, 0, position);
}
outputStream.flush();
inputStream.close();
outputStream.close();
}
}
html
<%@page contentType="text/html; charset=UTF-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>uploadfile</title>
</head>
<body>
<form action="upload" enctype="multipart/form-data" method="post">
<fieldset>
<input type="file" name="uploadFile" enctype="multipart/form-data">
<input type="submit" name="submit" value="uplofile">
</fieldset>
</form>
</body>
</html>
xml配置：   <servlet>
   <servlet-name>upload</servlet-name>
   <servlet-class>包名.Upload</servlet-class>
  </servlet>
  <servlet-mapping>
   <servlet-name>upload</servlet-name>
   <url-pattern>/upload</url-pattern>
  </servlet-mapping>

有一个upload有关的java类包，里面有页面代码和几个java类。还有一个上传图片的例子。跟上传文件差不多。楼主要不要。

java上传功能源码http://download.csdn.net/source/970570javabean实现上传功能源码http://download.csdn.net/source/970479
仿163网盘无刷新多附件上传源码http://download.csdn.net/source/1037046

SmartUpload实现上传：smartupload上传文件中应该注意的地方是表单中<form enctype="multipart/form-data" name="form1" action="zhbupload" method="post" >的enctype="multipart/form-data"是必须的，还有用了jspSmartupload以后jsp中的request就失效了，要用Smartupload中的Request myrequest = null;mySmartUpload.upload();myrequest = mySmartUpload.getRequest();通过myrequest来获取表单中除了上传文件的表单的其他内容！！还有数据库里面file的数据类型一定要是LongBlob！！package Action;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.PreparedStatement;
import java.util.Calendar;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 Other.DataBaseConnection;import com.jspsmart.upload.Request;
import com.jspsmart.upload.SmartUpload;public class Picupload extends HttpServlet {
    private static final long serialVersionUID = 1L;    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {        response.setContentType("text/html;charset=gb2312");
        PrintWriter out = response.getWriter();
        SmartUpload mySmartUpload = new SmartUpload();
        Request myrequest = null;
        String username = "", pwd = "";
        // long file_size_max = 4000000;
        String ext = "";
        String url = "touxiang\\"; // 应保证在根目录中有此目录的存在
        // 初始化
        mySmartUpload.initialize(this.getServletConfig(), request, response);
        // 只允许上载此类文件
        try {
            mySmartUpload.setAllowedFilesList("jpg,gif");
            // 上载文件            mySmartUpload.upload();
            myrequest = mySmartUpload.getRequest();        } catch (Exception e) {            out.print("<script>");
            out
                    .println("alert('只允许上传.jpg和.gif类型图片文件!');window.location='user_register.jsp';");
            out.print("</script>");        }
        try {
            com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(
                    0);
            int count = 0;
            if (myFile.isMissing()) {
                out.print("<script>");
                out.println("alert('请至少选择一个要上传的文件!');window.location='user_register.jsp';");
                out.print("</script>");            } else {                // String myFileName=myFile.getFileName(); //取得上载的文件的文件名
                out.println("正在上传文件，请等待。。");
                HttpSession session = request.getSession();
                for (int i = 0; i < mySmartUpload.getFiles().getCount(); i++) {
                    myFile = mySmartUpload.getFiles().getFile(i);
                    if (myFile.isMissing())
                        continue;
                    ext = myFile.getFileExt(); // 取得后缀名
                    int file_size = myFile.getSize(); // 取得文件的大小
                    String saveurl = "";                    // 更改文件名，取得当前上传时间的毫秒数值
                    Calendar calendar = Calendar.getInstance();
                    String filename = String
                            .valueOf(calendar.getTimeInMillis());
                    saveurl = request.getRealPath("\\") + url;                    saveurl += filename + "." + ext; // 最终文件的保存路径                    System.out.println(saveurl);                    myFile.saveAs(saveurl, mySmartUpload.SAVE_PHYSICAL);
                    username = myrequest.getParameter("username");
                    pwd = myrequest.getParameter("pwd");                    PreparedStatement pstmt = null;
                    DataBaseConnection dbc = null;
                    dbc = new DataBaseConnection();                    FileInputStream fis;
                    File file;                    file = new File(saveurl);
                    fis = new FileInputStream(file);

                    pstmt = dbc
                            .getConnection()
                            .prepareStatement(
                                    "insert into user(username,pwd,pic,userid) values(?,?,?,?)");
                    pstmt.setString(1, username);
                    pstmt.setString(2, pwd);
                    pstmt.setBinaryStream(3, fis, (int) file.length());
                    pstmt.setInt(4, 1);                    System.out.println("success inserted user into database");
                    pstmt.execute();
                    pstmt.close();
                    dbc.close();
                }                out.print("<script>");
                out.print("alert('上传成功');");
                out.print("window.location='login.jsp'");
                out.print("</script>");
            }
        } catch (Exception e) {            e.toString();        }
    }}

SmartUpload实现上传：package Action;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.PreparedStatement;
import java.util.Calendar;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 Other.DataBaseConnection;import com.jspsmart.upload.Request;
import com.jspsmart.upload.SmartUpload;public class Picupload extends HttpServlet {
    private static final long serialVersionUID = 1L;    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {        response.setContentType("text/html;charset=gb2312");
        PrintWriter out = response.getWriter();
        SmartUpload mySmartUpload = new SmartUpload();
        Request myrequest = null;
        String username = "", pwd = "";
        // long file_size_max = 4000000;
        String ext = "";
        String url = "touxiang\\"; // 应保证在根目录中有此目录的存在
        // 初始化
        mySmartUpload.initialize(this.getServletConfig(), request, response);
        // 只允许上载此类文件
        try {
            mySmartUpload.setAllowedFilesList("jpg,gif");
            // 上载文件            mySmartUpload.upload();
            myrequest = mySmartUpload.getRequest();        } catch (Exception e) {            out.print("<script>");
            out
                    .println("alert('只允许上传.jpg和.gif类型图片文件!');window.location='user_register.jsp';");
            out.print("</script>");        }
        try {
            com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(
                    0);
            int count = 0;
            if (myFile.isMissing()) {
                out.print("<script>");
                out.println("alert('请至少选择一个要上传的文件!');window.location='user_register.jsp';");
                out.print("</script>");            } else {                // String myFileName=myFile.getFileName(); //取得上载的文件的文件名
                out.println("正在上传文件，请等待。。");
                HttpSession session = request.getSession();
                for (int i = 0; i < mySmartUpload.getFiles().getCount(); i++) {
                    myFile = mySmartUpload.getFiles().getFile(i);
                    if (myFile.isMissing())
                        continue;
                    ext = myFile.getFileExt(); // 取得后缀名
                    int file_size = myFile.getSize(); // 取得文件的大小
                    String saveurl = "";                    // 更改文件名，取得当前上传时间的毫秒数值
                    Calendar calendar = Calendar.getInstance();
                    String filename = String
                            .valueOf(calendar.getTimeInMillis());
                    saveurl = request.getRealPath("\\") + url;                    saveurl += filename + "." + ext; // 最终文件的保存路径                    System.out.println(saveurl);                    myFile.saveAs(saveurl, mySmartUpload.SAVE_PHYSICAL);
                    username = myrequest.getParameter("username");
                    pwd = myrequest.getParameter("pwd");                    PreparedStatement pstmt = null;
                    DataBaseConnection dbc = null;
                    dbc = new DataBaseConnection();                    FileInputStream fis;
                    File file;                    file = new File(saveurl);
                    fis = new FileInputStream(file);

                    pstmt = dbc
                            .getConnection()
                            .prepareStatement(
                                    "insert into user(username,pwd,pic,userid) values(?,?,?,?)");
                    pstmt.setString(1, username);
                    pstmt.setString(2, pwd);
                    pstmt.setBinaryStream(3, fis, (int) file.length());
                    pstmt.setInt(4, 1);                    System.out.println("success inserted user into database");
                    pstmt.execute();
                    pstmt.close();
                    dbc.close();
                }                out.print("<script>");
                out.print("alert('上传成功');");
                out.print("window.location='login.jsp'");
                out.print("</script>");
            }
        } catch (Exception e) {            e.toString();        }
    }}

common-fileupload上传的工具类，在Servlet中使用此工具类可参照main()方法的用法import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.FileUploadBase.SizeLimitExceededException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;import com.zzxy.common.MISException;public class FileUpload extends HttpServlet {
private static final long serialVersionUID = 1L; // 保存普通form表单域
private Map<String, String> parameters;
// 保存上传的文件
private Map<String, FileItem> files; // 上传文件的最大长度，-1表示不限制上传文件最大长度 100 * 1024 * 1024
private long maxSize = -1;
// 允许上传的文件格式的列表
private String[] allowedExt = new String[] { ".jpg", ".jpeg", ".gif",
".txt", ".doc", ".docx", ".bmp", ".avi", ".chm", ".pdf", ".html",
".htm", ".swf", ".rar", ".zip", ".xls", ".ppt" };
// 设置上传文件时用于临时存放文件的内存大小,多于的部分将临时存在硬盘
private int sizeThreshold = DiskFileItemFactory.DEFAULT_SIZE_THRESHOLD;
// 设置字符编码为UTF-8, 这样支持汉字显示。当读取上传表单的各部分时会用到该encoding
private String encoding = "utf-8";
// 上传文件临时目录
private String repositoryPath = "d:\\temp\\"; /**
* <p>
* Title: FileUpload构造函数
* </p>
* <p>
* Description: 上传文件的构造函数，上传临时文件为D:\temp\，不限上传文件大小，不限后缀名
* </p>
*/
public FileUpload() {
super();
// TODO Auto-generated constructor stub
} /**
* <p>
* Title: FileUpload构造函数
* </p>
* <p>
* Description: 上传文件的构造函数，上传文件格式不限制
* </p>
*
* @param maxSize
*            允许上传的文件最大长度
* @param repositoryPath
*            上传文件的临时文件目录
*/
public FileUpload(long maxSize, String repositoryPath) {
super();
this.maxSize = maxSize;
this.repositoryPath = repositoryPath;
} /**
* <p>
* Title: FileUpload构造函数
* </p>
* <p>
* Description: 上传文件的构造函数
* </p>
*
* @param maxSize
*            允许上传的文件最大长度
* @param allowedExt
*            允许上传的后缀名
* @param repositoryPath
*            上传文件的临时文件目录
*/
public FileUpload(long maxSize, String[] allowedExt, String repositoryPath) {
super();
this.maxSize = maxSize;
this.allowedExt = allowedExt;
this.repositoryPath = repositoryPath;
} /**
* <p>
* Title: FileUpload构造函数
* </p>
* <p>
* Description: 上传文件的构造函数，上传文件大小不限制
* </p>
*
* @param allowedExt
*            允许上传的后缀名
* @param repositoryPath
*            上传文件的临时文件目录
*/
public FileUpload(String[] allowedExt, String repositoryPath) {
super();
this.allowedExt = allowedExt;
this.repositoryPath = repositoryPath;
} /**
* @方法名: getFileName
* @作者倪志鹏
* @功能：得到上传文件名称
* @param item
* @return
* @返回类型 String
*/
public String getFileName(FileItem item) {
String fileName = item.getName();
fileName = fileName.replace("\\", "/").substring(
fileName.lastIndexOf("/") + 1);
return fileName;
} /**
* @方法名: getExtension
* @作者倪志鹏
* @功能：得到上传文件的后缀名(include ".")
* @param item
* @return
* @返回类型 String
*/
public String getExtension(FileItem item) {
String strExtension = getFileName(item).substring(
getFileName(item).lastIndexOf("."));
return strExtension;
} /**
* @方法名: checkExtension
* @作者倪志鹏
* @功能：检查后缀名是否合法上传的文件(include ".")
* @param item
* @return
* @返回类型 boolean
*/
public boolean checkExtension(String strExtension) {
boolean flag = true;
// 拒绝接受规定文件格式之外的文件类型
int allowFlag = 0;
int allowedExtCount = allowedExt.length;
for (; allowFlag < allowedExtCount; allowFlag++) {
if (allowedExt[allowFlag].equals(strExtension))
break;
}
if (allowFlag == allowedExtCount) {
String strTemp = "<script>alert(\"请上传以下类型的文件:";
for (allowFlag = 0; allowFlag < allowedExtCount; allowFlag++) {
strTemp += "*." + allowedExt[allowFlag] + "  ";
}
strTemp += "\");</script>";
System.out.println("strTemp----End--->" + strTemp);
// out.print(strTemp);
flag = false;
}
return flag;
}

public void parse(HttpServletRequest request, HttpServletResponse response)
throws Exception {
parameters = new HashMap<String, String>();
files = new HashMap<String, FileItem>(); response.setContentType("text/html");
// 设置字符编码为UTF-8, 这样支持汉字显示
response.setCharacterEncoding("UTF-8");
// 实例化一个硬盘文件工厂,用来配置上传组件ServletFileUpload
DiskFileItemFactory factory = new DiskFileItemFactory();
// 设置上传文件时用于临时存放文件的内存大小,多于的部分将临时存在硬盘
factory.setSizeThreshold(sizeThreshold); java.io.File tempFolder = new java.io.File(repositoryPath);
if (!tempFolder.exists())
tempFolder.mkdirs();
// 设置存放临时文件的目录
factory.setRepository(tempFolder);
// 用以上工厂实例化上传组件
ServletFileUpload upload = new ServletFileUpload(factory);
// 设置最大上传尺寸
upload.setSizeMax(maxSize);
// 设置上传文件编码
upload.setHeaderEncoding(encoding); // PrintWriter out = response.getWriter(); // 从request得到所有上传域的列表
List fileList = null;
try {
fileList = upload.parseRequest(request);
} catch (FileUploadException e) {// 处理文件尺寸过大异常
if (e instanceof SizeLimitExceededException) {
// out.println("<script>alert(\"文件尺寸超过规定大小:" + maxSize
// + "字节\");</script>");
throw new MISException("文件尺寸超过规定大小:" + maxSize + "字节!");
}
e.printStackTrace();
}
// 没有文件上传
if (fileList == null || fileList.size() == 0) {
// out.println("<script>alert(\"请选择上传文件\");</script>");
throw new MISException("请选择上传文件!");
}
// 得到所有上传的文件
Iterator iterator = fileList.iterator();
// 循环处理所有文件
while (iterator.hasNext()) {
FileItem fileItem = null;
String path = null;
long size = 0;
// 得到当前文件
fileItem = (FileItem) iterator.next();
if (fileItem.isFormField()) {
String fieldName = fileItem.getFieldName();
String value = fileItem.getString();
parameters.put(fieldName, value);
} else {
String fieldName = fileItem.getFieldName();
files.put(fieldName, fileItem);
// 得到文件的完整路径
path = fileItem.getName();
// 得到文件的大小
size = fileItem.getSize();
if ("".equals(path) || size == 0) {
// out.println("<script>alert(\"请选择上传文件\");</script>");
throw new MISException("请选择上传文件!");
}
// 得到去除路径的文件名
// String t_name = getFileName(fileItem);
// 得到文件的扩展名(无扩展名时将得到全名)
String t_ext = getExtension(fileItem);
// System.out.println(""+t_ext);
// 判断文件后缀名是否为合法上传文件
if (!checkExtension(t_ext)) {
String strTip = "请上传以下类型的文件:";
for (int allowFlag = 0; allowFlag < allowedExt.length; allowFlag++) {
strTip += "*." + allowedExt[allowFlag] + "  ";
}
throw new MISException(strTip);
}
}
}
} /**
* @方法名: rename
* @作者倪志鹏
* @功能：对文件进行重命名
* @param oldName
*            老文件名
* @param newName
*            新文件名
* @return
* @返回类型 File
*/
private File rename(String oldName, String newName) {
int dot = oldName.lastIndexOf(".");
String ext = null;
if (dot != -1) {
ext = oldName.substring(dot); // includes "."
}
File f = new File(newName + ext);
createNewFile(f);
return f;
} /**
* @方法名: createNewFile
* @作者倪志鹏
* @功能：创建新的文件
* @param f
* @return
* @返回类型 boolean
*/
private boolean createNewFile(File f) {
try {
return f.createNewFile();
} catch (IOException ignored) {
return false;
}
} /**
* @return the maxPostSize
*/
public long getMaxSize() {
return maxSize;
} /**
* @param maxSize
*            要设置的 maxSize
*/
public void setMaxSize(long maxSize) {
this.maxSize = maxSize;
} /**
* @return the allowedExt
*/
public String[] getAllowedExt() {
return allowedExt;
} /**
* @param allowedExt
*            要设置的 allowedExt
*/
public void setAllowedExt(String[] allowedExt) {
this.allowedExt = allowedExt;
} /**
* @return the sizeThreshold
*/
public int getSizeThreshold() {
return sizeThreshold;
} /**
* @param sizeThreshold
*            要设置的 sizeThreshold
*/
public void setSizeThreshold(int sizeThreshold) {
this.sizeThreshold = sizeThreshold;
} /**
* @return the encoding
*/
public String getEncoding() {
return encoding;
} /**
* @param encoding
*            要设置的 encoding
*/
public void setEncoding(String encoding) {
this.encoding = encoding;
} /**
* @return the repositoryPath
*/
public String getRepositoryPath() {
return repositoryPath;
} /**
* @param repositoryPath
*            要设置的 repositoryPath
*/
public void setRepositoryPath(String repositoryPath) {
this.repositoryPath = repositoryPath;
} public static void main(String[] args, HttpServletRequest request,
HttpServletResponse response) throws Exception {
FileUpload fileUpload = new FileUpload();
fileUpload.parse(request, response);
System.out.println(fileUpload.parameters.get("possess"));
Iterator iterator = fileUpload.files.values().iterator();
while (iterator.hasNext()) {
FileItem item = (FileItem) iterator.next();
String fileName = fileUpload.getFileName(item);
String strExtension = fileUpload.getExtension(item);
// fileUpload.rename(oldName, newName);
File file = new File("/root/upload/" + fileName);
try {
item.write(file);
} catch (Exception e) {
e.printStackTrace();
}
}
} /**
* @return the parameters
*/
public Map<String, String> getParameters() {
return parameters;
} /**
* @param parameters
*            要设置的 parameters
*/
public void setParameters(Map<String, String> parameters) {
this.parameters = parameters;
} /**
* @return the files
*/
public Map<String, FileItem> getFiles() {
return files;
} /**
* @param files
*            要设置的 files
*/
public void setFiles(Map<String, FileItem> files) {
this.files = files;
}
}

好东西啊，哈哈，懒人来COPY些回去！谢谢LZ和大家，哈

调试易

求java上传图片、文件(音乐，压缩文件，文本之类的)代码

解决方案 »