基于spring2.0实现blog相册管理(文件下传＋目录管理)

2012-10-11

基于spring2.0实现blog相册管理(文件上传＋目录管理)?blog实现相册管理目的:?基于spring2.0实现blog相册管

基于spring2.0实现blog相册管理(文件上传＋目录管理)

blog实现相册管理
目的:
?基于spring2.0实现blog相册管理，主要包括：
?目录管理:新建目录,修改目录,删除目录,查看目录
?图片管理:图片文件,修改图片,删除图片,查看图片,移动图片

步骤:
一:包结构
-blog
|??? |+config
|??? |? |-blog-servlet.xml
|??? |+lib
|??? |+src
|??? |?|-src
|??? |?|??? |-com
|??? |?|??? |?|-wiscom
|??? |?|??? |?|?|-file
|??? |?|??? |?|?|??? |+model
|??? |?|??? |?|?|??? |-web
|??? |?|??? |?|?|??? |? |-admin
|??? |-web
|??? |?|+image
|??? |?|+upload
|??? |?|+WEB-INF
|??? |? |-build.xml

二:文件上传
1:说明:spring提供对分段文件上传（multipart file upload）的支持,Spring支持web应用中的分段文件上传。这种支持是由即插即用的MultipartResolver来实现。这些解析器都定义在org.springframework.web.multipart包里。Spring提供了现成的MultipartResolver可以支持Commons FileUpload(http://jakarta.apache.org/commons/fileupload)和 COS FileUpload(http://www.servlets.com/cos)。本章后面的部分描述了Spring是如何支持文件上传的。
通常情况下，Spring是不处理文件上传的，因为一些开发者想要自己处理它们。如果想使用Spring的这个功能，需要在web应用的上下文中添加分段文件解析器。这样，每个请求就会被检查是否包含文件上传。如果没有，这个请求就被正常的处理，否则，应用上下文中已经定义的MultipartResolver就会被调用。然后，你请求中的文件属性就会像其它属性一样被处理。

2:本例子实现commons fileupload.先在工程lib中加入jar包commons-fileupload.jar。
?在config中的blog-servlet.xml加入MultipartResolver
<bean id="multipartResolver"
?? values (?,?,?,?,?,?,?,?,?,?,?)";
??getJdbcTemplate().update(sql, new PreparedStatementSetter() {
???public void setValues(PreparedStatement ps) throws SQLException {
????ps.setString(1, uploadFile.getId());
????ps.setString(2, uploadFile.getFileOriginalName());
????ps.setString(3, uploadFile.getAlias());
????ps.setString(4, uploadFile.getParentDirectoryId());
????ps.setString(5, uploadFile.getType());
????ps.setTimestamp(6, new java.sql.Timestamp((uploadFile.getUploadTime().getTime())));
????ps.setTimestamp(7, new java.sql.Timestamp((uploadFile.getUpdateTime().getTime())));
????ps.setString(8, uploadFile.getUserId());
????ps.setString(9, uploadFile.getPostfix());
????ps.setString(10, uploadFile.getFileSize());
????ps.setString(11, uploadFile.getDescription());
???}
??});?}
?public void updateFile(final UploadFile uploadFile) {
??String sql = "update UPLOADFILE set FILEORIGINALNAME=?,PARENTDIRECTORYID=?,TYPE=?,UPDATETIME=?,DESCRIPTION=? where ID=?";
??getJdbcTemplate().update(sql, new PreparedStatementSetter() {
???public void setValues(PreparedStatement ps) throws SQLException {
????ps.setString(1, uploadFile.getFileOriginalName());
????ps.setString(2, uploadFile.getParentDirectoryId());
????ps.setString(3, uploadFile.getType());
????ps.setTimestamp(4, new java.sql.Timestamp((uploadFile.getUpdateTime().getTime())));
????ps.setString(5, uploadFile.getDescription());
????ps.setString(6, uploadFile.getId());
???}
??});?}?public UploadFile getFile(String id) throws UploadFileNotFoundException {
??try{
???return (UploadFile) getJdbcTemplate().queryForObject(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where ID=?",
?????new Object[] { id }, new FileMapper());???
??} catch(EmptyResultDataAccessException erde){
???throw new UploadFileNotFoundException();
??}
?}?public UploadFile getFileByAlias(String alias) {
??try{
???return (UploadFile) getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where ALIAS=?",
?????new Object[] { alias }, new FileMapper());???
??} catch(EmptyResultDataAccessException erde){
???throw new UploadFileNotFoundException();
??}
?}?public List getFilesByParentDirectoryId(String parentDirectoryId) {
???return getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where PARENTDIRECTORYID=?",
?????new Object[] { parentDirectoryId }, new FileMapper());???
?}?public UploadFile getFilesByFileOriginalName(String fileOriginalName) {
??try{
???return (UploadFile) getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where FILEORIGINALNAME=?",
?????new Object[] { fileOriginalName }, new FileMapper());???
??} catch(EmptyResultDataAccessException erde){
???throw new UploadFileNotFoundException();
??}
?}?public List getFilesByPostfix(String postfix) {
???return getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where POSTFIX=?",
?????new Object[] { postfix }, new FileMapper());???
?}
?
?public List getFilesByType(String type) {
???return getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where TYPE=?",
?????new Object[] { type }, new FileMapper());???
?}?public List getFilesByType(String userId,String type) {
???return getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where TYPE=? And USERID=?",
?????new Object[] { type,userId }, new FileMapper());???
?}?public List getFilesByUserId(String userId) {
???return getJdbcTemplate().query(
?????"select ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION from UPLOADFILE Where USERID=?",
?????new Object[] { userId }, new FileMapper());??
?}
?
?
?private class FileMapper implements RowMapper {
??public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
???UploadFile uploadFile = new UploadFile();
???uploadFile.setId(rs.getString("ID"));
???uploadFile.setFileOriginalName(rs.getString("FILEORIGINALNAME"));
???uploadFile.setAlias(rs.getString("ALIAS"));
???uploadFile.setParentDirectoryId(rs.getString("PARENTDIRECTORYID"));
???uploadFile.setType(rs.getString("TYPE"));
???uploadFile.setUploadTime(rs.getTime("UPLOADTIME"));
???uploadFile.setUpdateTime(rs.getTime("UPDATETIME"));
???uploadFile.setUserId(rs.getString("USERID"));
???uploadFile.setPostfix(rs.getString("POSTFIX"));
???uploadFile.setFileSize(rs.getString("FILESIZE"));
???uploadFile.setDescription(rs.getString("DESCRIPTION"));
???return uploadFile;
??}
?}
?public void updateFileDirectory(String srcId, String destId) {
??String sql = "update UPLOADFILE set PARENTDIRECTORYID=? WHERE PARENTDIRECTORYID = ?";
??????? getJdbcTemplate().update(sql, new Object[]{destId, srcId});
?}
}





9:blog\src\com\wiscom\file\service下的DirectoryManager接口,体现面向接口编程
package com.wiscom.file.service;import java.util.List;
import com.wiscom.file.model.Directory;public interface DirectoryManager {
?//根据Directory的ID获得Directory
?public Directory getDirectory(String id) throws DirectoryNotFoundException;
?//保存Directory
?public void saveDirectory(Directory directory);
?//删除Directory
?public void removeDirectory(String directoryId);
?//获得当前用户type(这里自由album)归属的所有Directory
?public List getDirectoriesByType(String type,String userId);
?//获得当前用户type(这里自由album)归属的所有Directory,排列与上面有别
?public List getDirectoriesListByType(String type,String userId);
?//获得parentDirectoryId目录下的所有目录
?public List getDirectoriesByParentDirectoryId(String parentDirectoryId);
?//获得用户userId,归属为type，directoryId目录下的所有目录
?public List getDirectoriesByDirectory(String directoryId,String userId,String type);
?//获得归属为type的根目录,如album的根目录为"根目录"
?public Directory getRootDirectory(String userId,String type);
?//把srcId下的所有目录转移到destId目录下
?public void moveParentDirectory(String srcId,String destId);
?//查看userId的directoryId目录下是否有目录或文件
?public boolean checkDirectoryUsed(String directoryId,String userId);
}
10:抽象类AbstractDirectoryManager,主要是是保存和删除记录,不涉及基本sql
在blog\src\com\wiscom\file\service\impl下
package com.wiscom.file.service.impl;import java.util.List;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.jdbc.support.incrementer.DataFieldMaxValueIncrementer;
import com.wiscom.file.model.Directory;
import com.wiscom.file.service.DirectoryManager;public abstract class AbstractDirectoryManager extends JdbcDaoSupport implements DirectoryManager{
?
? protected DataFieldMaxValueIncrementer idGenerator;?public void setIdGenerator(DataFieldMaxValueIncrementer idGenerator) {
??this.idGenerator = idGenerator;
?}
?public void saveDirectory(Directory directory) {
??if (directory.getId() == null||directory.getId().equals("")) {
???directory.setId(idGenerator.nextStringValue());
???insertDirectory(directory);
??} else {
???updateDirectory(directory);
??}
?}?public void removeDirectory(String directoryId) {
??try {
???Directory directory = getDirectory(directoryId);
???deleteDirectory(directoryId);
??} catch (Exception e) {
???logger.error(e);
??}
?}
?
?public void moveParentDirectory(String srcId,String destId){
??List directories = getDirectoriesByParentDirectoryId(srcId);
??updateParentDirectory(srcId, destId);
?? for (int i = 0; i < directories.size(); i++) {
??? Directory File = (Directory) directories.get(i);
??? File.setParentDirectoryId(destId);
?/*??????????? indexService.rebuildEntry(Entry);*/
???????? }
?}
?
?abstract void updateParentDirectory(String srcId,String destId);
?
?abstract void insertDirectory(Directory directory);?abstract void updateDirectory(Directory directory);
?
?abstract void deleteDirectory(String directoryId);
?
}
11:基本DAO的实现类GeneralDirectoryManager
package com.wiscom.file.service.impl;import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.jdbc.core.PreparedStatementSetter;
import org.springframework.jdbc.core.RowMapper;
import com.wiscom.file.model.Directory;
import com.wiscom.file.service.DirectoryNotFoundException;
public class GeneralDirectoryManager extends AbstractDirectoryManager {?public void deleteDirectory(String directoryId) {
??String sql = "delete from DIRECTORY where ID=?";
??getJdbcTemplate().update(sql, new Object[] { directoryId });
?}?public void insertDirectory(final Directory directory) {
??String sql = "insert into DIRECTORY (ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION) "+ " values (?,?,?,?,?,?,?,?,?,?,?)";
??getJdbcTemplate().update(sql, new PreparedStatementSetter() {
???public void setValues(PreparedStatement ps) throws SQLException {
????ps.setString(1, directory.getId());
????ps.setString(2, directory.getName());
????ps.setString(3, directory.getDirectory());
????ps.setString(4, directory.getParentDirectoryId());
????ps.setInt(5, directory.getPriority());
????ps.setString(6, directory.getType());
????ps.setString(7, directory.getUserId());
????ps.setInt(8, directory.getAllow()?1:0);
????ps.setTimestamp(9, new java.sql.Timestamp((directory.getCreateTime().getTime())));
????ps.setTimestamp(10, new java.sql.Timestamp((directory.getUpdateTime().getTime())));
????ps.setString(11, directory.getDescription());
???}
??});?}
?public void updateDirectory(final Directory directory) {
??String sql = "update DIRECTORY set NAME=?,DIRECTORY=?,PARENTDIRECTORYID=?,PRIORITY=?,ALLOW=?,UPDATETIME=?,DESCRIPTION=? where ID=?";
??getJdbcTemplate().update(sql, new PreparedStatementSetter() {
???public void setValues(PreparedStatement ps) throws SQLException {
????ps.setString(1, directory.getName());
????ps.setString(2, directory.getDirectory());
????ps.setString(3, directory.getParentDirectoryId());
????ps.setInt(4, directory.getPriority());
????ps.setInt(5, directory.getAllow()?1:0);
????ps.setTimestamp(6, new java.sql.Timestamp((directory.getUpdateTime().getTime())));
????ps.setString(7, directory.getDescription());
????ps.setString(8, directory.getId());
???}
??});
?}?public List getDirectoriesByParentDirectoryId(String parentDirectoryId) {
???return getJdbcTemplate().query(
?????"select ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION from DIRECTORY Where PARENTDIRECTORYID=? Order By PRIORITY",
?????new Object[] { parentDirectoryId}, new DirectoryMapper());???
?}?public List getDirectoriesByType(String type, String userId) {
???return getJdbcTemplate().query(
?????"select ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION from DIRECTORY Where TYPE=? AND USERID=? Order By PRIORITY",
?????new Object[] { type,userId }, new DirectoryMapper());?
?}
?
?public List getDirectoriesListByType(String type, String userId) {
??return getJdbcTemplate().query(
????"select ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION from DIRECTORY Where TYPE=? AND USERID=? Order By DIRECTORY",
????new Object[] { type,userId }, new DirectoryMapper());?
}?public Directory getDirectory(String id){
??try{
???return (Directory) getJdbcTemplate().queryForObject(
?????"select ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION from DIRECTORY Where ID=?",
?????new Object[] { id }, new DirectoryMapper());???
??} catch(EmptyResultDataAccessException erde){
???throw new DirectoryNotFoundException();
??}
?}?public Directory getRootDirectory(String userId,String type) {
??try{
???String sql="select ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION from DIRECTORY WHERE NAME='根目录' AND USERID=? AND TYPE=?";
???return (Directory) getJdbcTemplate().queryForObject(sql, new Object[] { userId ,type }, new DirectoryMapper());???
??} catch(EmptyResultDataAccessException erde){
???throw new DirectoryNotFoundException();
??}??
?}
?
?private class DirectoryMapper implements RowMapper {
??public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
???Directory directory = new Directory();
???directory.setId(rs.getString("ID"));
???directory.setName(rs.getString("NAME"));
???directory.setDirectory(rs.getString("DIRECTORY"));
???directory.setParentDirectoryId(rs.getString("PARENTDIRECTORYID"));
???directory.setPriority(rs.getInt("PRIORITY"));
???directory.setType(rs.getString("TYPE"));
???directory.setUserId(rs.getString("USERID"));
???directory.setAllow((rs.getInt("ALLOW")==1));
???directory.setCreateTime(rs.getTime("CREATETIME"));
???directory.setUpdateTime(rs.getTime("UPDATETIME"));
???directory.setDescription(rs.getString("DESCRIPTION"));
???return directory;
??}
?}??public boolean checkDirectoryUsed(String directoryId,String userId) {
??return getJdbcTemplate().queryForInt("select count(*) from file Where directoryid=? And USERID=?",new Object[]{directoryId,userId})>0;
?}?public void updateParentDirectory(String srcId, String destId) {
??String sql = "update directory set PARENTDIRECTORYID=? WHERE PARENTDIRECTORYID = ?";
??????? getJdbcTemplate().update(sql, new Object[]{destId, srcId});
??
?}?public List getDirectoriesByDirectory(String directory,String userId,String type) {
??return getJdbcTemplate().query(
????"select ID,NAME,DIRECTORY,PARENTDIRECTORYID,PRIORITY,TYPE,USERID,ALLOW,CREATETIME,UPDATETIME,DESCRIPTION from DIRECTORY Where USERID=? And TYPE=? And DIRECTORY LIKE ? Order By PRIORITY",
????new Object[] { userId,type,directory}, new DirectoryMapper());?
?}}





12.在blog-servlet.xml中加入GeneralUploadFileManager与GeneralDirectoryManager的bean
sequnce:SEQ_WEBLOGFILE_ID和SEQ_WEBLOGDIRECTORY_ID能在插入记录是生成ID
GeneralUploadFileManager类继承AbstractUploadFileManager,AbstractUploadFileManager
把idGenerator作为自己的属性,AbstractUploadFileManager又继承JdbcDaoSupport,
JdbcDaoSupport把dataSource作为自己的属性.
<bean id="com.wiscom.file.service.WeblogFileManager" parent="txProxyTemplate">
??????? <property name="target">
??????????? <bean ref="dataSource"/>
??????????????? <property name="idGenerator">
??????????????????? <bean ref="dataSource"/>
??????????????????????? <property name="incrementerName" value="SEQ_WEBLOGFILE_ID"/>
??????????????????? </bean>
??????????????? </property>
??????????? </bean>
??????? </property>
??? </bean>??? <bean id="com.wiscom.file.service.WeblogDirectoryManager" parent="txProxyTemplate">
??????? <property name="target">
??????????? <bean ref="dataSource"/>
??????????????? <property name="idGenerator">
??????????????????? <bean ref="dataSource"/>
??????????????????????? <property name="incrementerName" value="SEQ_WEBLOGDIRECTORY_ID"/>
??????????????????? </bean>
??????????????? </property>
??????????? </bean>
??????? </property>
??? </bean>





13:文件上传页面，albumUpload.jsp
说明:对文件上传来说：enctype="multipart/form-data"和<input type="file">是必须的.
?
<%@ page pageEncoding="GB2312"%>
<%@ include file="/WEB-INF/jsp/include.jsp"%>
<form:form name="form1" method="post" action="albumUpload.htm"
?commandName="fileUpload" enctype="multipart/form-data" onsubmit="return mychk()">
?<form:errors path="*" />
?<table>??<tr>
???<td>
????<spring:bind path="fileUpload.file">
?????<input id="put" name='< c:out value="${status.expression}"/>'
??????type="file" size="15" />
????</spring:bind>
???</td>
??</tr>
??<tr>
???<td>
????文件说明:
????<form:input path="description" />
???</td>
??</tr>
??<tr>
???<td>
???<spring:bind path="fileUpload.parentDirectoryId">
????<input type="submit" value="上载图片" />
????<input type="button" value="返回" onClick="location.href='<c:out value="${pageContext.request.contextPath}"/>/albumView.htm?parentDirectoryId=< c:out value="${status.value}"/>'"/>
???</spring:bind>
???</td>
??</tr>?</table>
</form:form><script language="javascript">??
? function?? mychk(){
?????? var s=document.getElementById("put").value.length;
????????????? if(s>0)
??????????????????? {??
??????????????????? s=document.getElementById("put").value;
??????????????????? s=s.substring(s.length-4,s.length);
??????????????????? s=s.toLowerCase();
????????????????? if((s==".jpg")||(s==".gif")||(s==".png")){??
?????????????????????? return?? true;
??????????????????????? }??
????????????????? else {??
????????????????????? alert("图片只支持jpg,gif,png格式，请检验并更正!");
????????????????????? document.getElementById("put").select();
????????????????????? return false;
????????????????????? }
????????????????? }
????? return?? true;
????? }
? </script>

14:其中include.jsp为:
<%@ page contentType="text/html; charset=utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt" %>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>

blog-servlet.xml中加入:
<bean id="HandlerMapping"
?value="album"/>
??????? <property name="uploadFileManager">
??????????? <ref bean="com.wiscom.file.service.WeblogFileManager"/>
??????? </property>
??????? <property name="directoryManager">
??????????? <ref bean="com.wiscom.file.service.WeblogDirectoryManager"/>
??????? </property>
??????? <property name="uploadDir" value="D:\blog\build\blog\upload"/>
??????? <property name="commandName" value="fileUpload"/>
??????? <property name="sessionForm" value="true"/>
??????? <property name="formView" value="WEB-INF/jsp/albumUpload.jsp"/>
</bean>

16:com.wiscom.file.web.admin下实现图片上传控制器AlbumUploadController
package com.wiscom.file.web.admin;import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Calendar;
import java.util.Date;
import java.util.Random;import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.FileCopyUtils;
import org.springframework.validation.BindException;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.support.ByteArrayMultipartFileEditor;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;import com.wiscom.file.model.FileUpload;
import com.wiscom.file.model.UploadFile;
import com.wiscom.file.service.DirectoryManager;
import com.wiscom.file.service.UploadFileManager;
import com.wiscom.file.web.Helper;public class FileUploadController extends SimpleFormController {
?protected final Log log = LogFactory.getLog(FileUploadController.class);
?private String type;?//文件归属(album)
?private String uploadDir;//存储目录
?private UploadFileManager uploadFileManager;
?private DirectoryManager directoryManager;?public void setType(String type) {
??this.type = type;
?}
?public void setUploadFileManager(UploadFileManager uploadFileManager) {
??this.uploadFileManager = uploadFileManager;
?}
?public void setUploadDir(String uploadDir) {
??this.uploadDir = uploadDir;
?}
?public void setDirectoryManager(DirectoryManager directoryManager) {
??this.directoryManager = directoryManager;
?}
?//第一次请求页面(亦非submit操作)时返回的commandClass实例
?protected Object formBackingObject(HttpServletRequest request)
???throws Exception {
??FileUpload fileUpload = new FileUpload();
??fileUpload.setParentDirectoryId(request.getParameter("parentDirectoryId"));
?? return fileUpload;
?}
?//对Command的特定的Field做格式化操作
?protected void initBinder(HttpServletRequest request,
???ServletRequestDataBinder binder) throws ServletException {
??binder.registerCustomEditor(byte[].class,new ByteArrayMultipartFileEditor());
?}
?//上传提交操作的处理
?protected ModelAndView onSubmit(HttpServletRequest request,
???HttpServletResponse response, Object command, BindException errors)
???throws ServletException, IOException {
??if (type!=null&&type.equals("album")) {
???//将command表单转成FileUpload的类型,有三个属性：
???//parentDirectoryId:
???//file:分段字节流
???//description:
???FileUpload bean = (FileUpload) command;
???//从bean获得字节流
???byte[] bytes = bean.getFile();
???//request转成MultipartHttpServletRequest类型
???MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
???//在multipartRequest中将名称为file的属性取出
???//file只包含一些文件的基本信息,如名称,不包含文件本身的字节流,file格式如下(例子):
???//-fileItem
???//|??| catchdContent=null
???//|??|+contentType="image/pjpeg"
???//|??|+dfos=DeferredFileOutputStream
???//|??| dfosFile=null
???//|??|+fieldName="file"
???//|??|+fileName="C:\Winter.jpg"
???//|??| isFormField=false
???//|??|+repository=File
???//|??| size=-1
???//|??| sizeThreshold=4096
???//-size=105542
???CommonsMultipartFile file = (CommonsMultipartFile) multipartRequest.getFile("file");
???if (bytes == null) {
????//没有上传图片为空
????return new ModelAndView("/albumView.htm?parentDirectoryId="+bean.getParentDirectoryId());
???} else {
????//每个用户被分配名称为自己的ID号的文件夹
????String userUploadDir = uploadDir+ Helper.getCurrentUserId(request);
????File dirPath = new File(userUploadDir);
????//如果该文件夹不存在,则创建它
????if (!dirPath.exists()) {
?????dirPath.mkdirs();
????}
????//操作系统的目录分隔符,windows为""
????String sep = System.getProperty("file.separator");
????//记入log4j日志
????if (log.isDebugEnabled()) {
?????log.debug("uploading to: " + userUploadDir + sep
???????+ file.getOriginalFilename());
????}
????// 存入对照表
????int pointIndex = file.getOriginalFilename().lastIndexOf(".");
????if (pointIndex == -1) {
?????return new ModelAndView("/albumView.htm?parentDirectoryId="+bean.getParentDirectoryId());
????}
????UploadFile uploadFile = new UploadFile();
????uploadFile.setFileOriginalName(file.getOriginalFilename()
??????.substring(0, pointIndex));
????uploadFile.setPostfix(file.getOriginalFilename().substring(
??????pointIndex + 1));
????// 以上传时间为别名
????Calendar calCurrent = Calendar.getInstance();
????long intTime = calCurrent.getTimeInMillis();
????int intDay = calCurrent.get(Calendar.DATE);
????int intMonth = calCurrent.get(Calendar.MONTH);
????int intYear = calCurrent.get(Calendar.YEAR);
????String alias = Integer.toString(intYear)
??????+ Integer.toString(intMonth) + Integer.toString(intDay)
??????+ Long.toString(intTime)
??????+ Integer.toString(new Random().nextInt(6));
????uploadFile.setAlias(alias);
????uploadFile.setType(type);
????uploadFile.setParentDirectoryId(bean.getParentDirectoryId());
????uploadFile.setUploadTime(new Date(new Date().getTime()));
????uploadFile.setUpdateTime(new Date(new Date().getTime()));
????uploadFile.setUserId(Helper.getCurrentUserId(request));
????uploadFile.setFileSize(Integer.toString(bytes.length / 1024));
????uploadFile.setDescription(bean.getDescription());
????// 检查文件是否存在
????if (!uploadFileManager.checkFileExist(uploadFile.getFileOriginalName(), uploadFile.getPostfix(),
??????uploadFile.getType(), Helper.getCurrentUserId(request))) {
?????// 存入数据库
?????uploadFileManager.saveFile(uploadFile);
?????// 存盘
?????File uploadedFile = new File(userUploadDir + sep
???????+ uploadFile.getAlias() + "."
???????+ uploadFile.getPostfix());
?????FileCopyUtils.copy(bytes, uploadedFile);
?????// 生成略缩图
?????try {
??????File destFile = new File(userUploadDir + sep
????????+ Helper.getCurrentUserId(request) + "_"
????????+ uploadFile.getAlias() + "."
????????+ uploadFile.getPostfix()); // 将要转换出的小图文件
??????AffineTransform transform = new AffineTransform();
??????BufferedImage bis = ImageIO.read(uploadedFile);
??????int w = bis.getWidth(); // 宽
??????int h = bis.getHeight(); // 高
??????int nw = 120; // 新宽
??????int nh = (nw * h) / w; // 新高
??????if (nh > 120) { // 重定义
???????nh = 120;
???????nw = (nh * w) / h;
??????}
??????double sx = (double) nw / w; // 宽比例
??????double sy = (double) nh / h; // 高比例
??????transform.setToScale(sx, sy); // 设置缩放比例
??????AffineTransformOp ato = new AffineTransformOp(
????????transform, null);
??????BufferedImage bid = new BufferedImage(nw, nh,
????????BufferedImage.TYPE_3BYTE_BGR);// 图层样式
??????ato.filter(bis, bid); // 将bis强制转换成bid
??????ImageIO.write(bid, "jpeg", destFile);
?????} catch (Exception e) {
??????e.printStackTrace();
?????}
????} else {
?????// 文件存在警告
????}
????return new ModelAndView("/albumView.htm?parentDirectoryId="+bean.getParentDirectoryId());
???}
??}
??return null;
?}}


16. <bean id="AlbumEditController"
????????? value="file"/>
??????? <property name="sessionForm" value="true"/>
??????? <property name="formView" value="WEB-INF/jsp/albumEdit.jsp"/>
??? </bean>

17.<%@ page pageEncoding="GB2312"%>
<%@ include file="/WEB-INF/jsp/include.jsp"%>?<form:form commandName="file" method="post" action="albumEdit.htm" onsubmit="return check()">
?<form:errors path="*" />
?<table>
??<tr>
???<h1 colspan="2">
????修改文件
???</h1>
??</tr>??<form:hidden path="id" />
??<tr>
???<th>
????名称
???</th>
???<td>
????<form:input path="fileOriginalName" id="fileOriginalName"/>
???</td>
??</tr>
??<tr>
???<th>
????描述
???</th>
???<td>
????<form:input path="description" />
???</td>
??</tr>
??<tr>
???<th colspan="2">
???<spring:bind path="file.parentDirectoryId">
????<input type="submit" value="保存" />
????<input type="button" value="返回" onClick="location.href='<c:out value="${pageContext.request.contextPath}"/>/albumView.htm?parentDirectoryId=< c:out value="${status.value}"/>'"/>
???</spring:bind>
???</th>
??</tr>
?</table>
</form:form><script>
function check(){
if(document.getElementById("fileOriginalName").value.length<1){
??? alert("名称不能为空");
??? return false;
? }
?return true;
}
</script>
18.=实现FileEditController
package com.wiscom.file.web.admin;import java.util.Date;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.validation.BindException;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;import com.wiscom.file.model.UploadFile;
import com.wiscom.file.service.UploadFileManager;public class FileEditController extends SimpleFormController? {
?private UploadFileManager uploadFileManager;?public void setUploadFileManager(UploadFileManager uploadFileManager) {
??this.uploadFileManager = uploadFileManager;
?}
?protected Object formBackingObject(HttpServletRequest request) throws Exception {
??return ?uploadFileManager.getFile(request.getParameter("weblogFileId"));
?}
?protected void initBinder(HttpServletRequest request,
???ServletRequestDataBinder binder) throws Exception {
??binder.setAllowedFields(new String[] { "fileOriginalName", "parentDirectoryId","description" });
?}
?protected ModelAndView onSubmit(HttpServletRequest request,
???HttpServletResponse response, Object command,
???BindException bindException) throws Exception {
??UploadFile uploadFile = (UploadFile) command;
??uploadFile.setUpdateTime(new Date(new Date().getTime()));
??uploadFileManager.saveFile(uploadFile);
??if(uploadFile.getType().equals("album")){
??return new ModelAndView("/albumView.htm?parentDirectoryId="+uploadFile.getParentDirectoryId());
??}
??if(uploadFile.getType().equals("attachment")){
???return new ModelAndView(getSuccessView());
???}
??return null;
?}
}


19.配置AlbumDeleteController
??? <bean id="AlbumDeleteController" value="D:\blog\build\blog\upload"/>
??????? <property name="uploadFileManager">
??????????? <ref bean="com.wiscom.file.service.WeblogFileManager"/>
??????? </property>
??????? <property name="viewName" value="/albumView.htm"/>
??? </bean>

20.实现AlbumDeleteController
package com.wiscom.file.web.admin;import java.io.File;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.ParameterizableViewController;import com.wiscom.file.model.UploadFile;
import com.wiscom.file.service.UploadFileManager;
import com.wiscom.file.web.Helper;public class FileDeleteController? extends ParameterizableViewController{
?private String uploadDir;?
?private UploadFileManager uploadFileManager;
??public void setUploadDir(String uploadDir) {
??this.uploadDir = uploadDir;
?}?public void setUploadFileManager(UploadFileManager uploadFileManager) {
??this.uploadFileManager = uploadFileManager;
?}?protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
??String uploadFileId = request.getParameter("weblogFileId");
??UploadFile uploadFile = uploadFileManager.getFile(uploadFileId);
??uploadFileManager.removeFile(uploadFileId);
??String sep = System.getProperty("file.separator");
??String userUploadDir =uploadDir+Helper.getCurrentUserId(request);
??File uploadedFile = new File(userUploadDir+sep+uploadFile.getAlias()+"."+uploadFile.getPostfix());
??uploadedFile.delete();
??if(uploadFile.getType().equals("album")){
??File destFile = new File(userUploadDir + sep+Helper.getCurrentUserId(request)+"_"+uploadFile.getAlias()+"."+uploadFile.getPostfix());
??destFile.delete();
??return new ModelAndView("/albumView.htm?parentDirectoryId="+uploadFile.getParentDirectoryId());
??}
??return new ModelAndView(getViewName());
?}
}


21.配置AlbumMoveController
<bean id="AlbumMoveController" value="/albumView.htm"/>
</bean>

22.实现AlbumMoveController
package com.wiscom.file.web.admin;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.ParameterizableViewController;import com.wiscom.file.model.UploadFile;
import com.wiscom.file.service.UploadFileManager;public class FileMoveController extends ParameterizableViewController{?private UploadFileManager uploadFileManager;?public void setUploadFileManager(UploadFileManager uploadFileManager) {
??this.uploadFileManager = uploadFileManager;
?}?protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
??UploadFile uploadFile = uploadFileManager.getFile(request.getParameter("fileId"));
??String parentDirectoryId = uploadFile.getParentDirectoryId();
??uploadFile.setParentDirectoryId(request.getParameter("targetDirectoryId"));
??uploadFileManager.saveFile(uploadFile);
??if(uploadFile.getType().equals("album")){
???return new ModelAndView("/albumView.htm?parentDirectoryId="+parentDirectoryId);
??}
??return new ModelAndView(getViewName());
?}
}



23.配置 DirectoryCreateController
<bean id="DirectoryCreateController" />
??</property>
??<property name="commandName" value="directory" />
??<property name="sessionForm" value="true" />
??<property name="formView" value="WEB-INF/jsp/directoryCreate.jsp" />
??<property name="validator">
??????????? <ref bean="DirectoryValidator"/>
??????? </property>
</bean>

24.directoryCreate.jsp
<%@ page pageEncoding="GB2312"%>
<%@ include file="/WEB-INF/jsp/include.jsp"%><form:form method="post" action="directoryCreate.htm" name="formcrate" commandName="directory" >
?<form:errors path="*" />
?<table>
??<tr>
???<h1 colspan="2">
????目录操作
???</h1>
??</tr>??<form:hidden path="id" />
??<tr>
???<th>
????名称
???</th>
???<td>
????<form:input path="name" id="name"/>
???</td>
??</tr>
??<tr>
???<th>
????显示顺序
???</th>
???<td>
????<form:input path="priority" id="priority"/>
???</td>
??</tr>
??<tr>
???<th>
????描述
???</th>
???<td>
????<form:input path="description" />
???</td>
??</tr>
??<tr>
???<th colspan="2">
????<spring:bind path="directory.parentDirectoryId">
?????<input type="button" value="保存" onClick="check()"/>
?????<input type="button" value="返回" onClick="location.href='<c:out value="${pageContext.request.contextPath}"/>/albumView.htm?parentDirectoryId=<c:out value='${status.value}'/>'"?/>
????</spring:bind>
???</th>
??</tr>
?</table>
</form:form><script language="javascript">
function check(){
if(document.getElementById("name").value.length<1){
??? alert("名称不能为空");
??? return false;
? }if(checknumber(document.getElementById("priority").value)==false){
????? alert("排序必须为数字");
??? return false;
?}
?document.formcrate.submit();
?return true;
}
function checknumber(String)
{
?? var Letters = "1234567890";
?? var i;
?? var c;
?? for( i = 0; i < String.length; i ++ )
?? {
?????? c = String.charAt( i );
?????? if (Letters.indexOf( c ) ==-1)
?????? {
?????????? return false;
?????? }
?? }
?? return true;
}
</script>

25.实现DirectoryCreateController
package com.wiscom.file.web.admin;import java.util.Date;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.validation.BindException;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;import com.wiscom.file.model.Directory;
import com.wiscom.file.service.DirectoryManager;
import com.wiscom.file.web.Helper;public class DirectoryCreateController extends SimpleFormController {
?
?private DirectoryManager directoryManager;?public void setDirectoryManager(DirectoryManager directoryManager) {
??this.directoryManager = directoryManager;
?}
?
?protected Object formBackingObject(HttpServletRequest request) throws Exception {
??Directory directory = new Directory();
??directory.setParentDirectoryId(directoryManager.getDirectory(request.getParameter("parentDirectoryId")).getId());
??directory.setType(directoryManager.getDirectory(request.getParameter("par

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