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
<!--========================package=================================-->
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
<!--======================spring fileupload==========================-->
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。
<!--=======================multipartResolver==========================-->
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"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- set the max upload size 500KB -->
<property name="maxUploadSize">
<value>51200</value>
</property>
<property name="maxInMemorySize">
<value>4096</value>
</property>
</bean>
<!--==========================以下为model================================-->
<!--==========================以下为model================================-->
<!--==========================以下为model================================-->
<!--=========================FileUpload.java=============================-->
3:在blog\src\com\wiscom\file\model中实现FileUpload的model
package com.wiscom.file.model;
public class FileUpload {
private String parentDirectoryId;//文件存放在哪个虚拟目录下
private byte[] file;//文件字节流
private String description;//文件的描述
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public byte[] getFile() {
return file;
}
public void setFile(byte[] file) {
this.file = file;
}
public String getParentDirectoryId() {
return parentDirectoryId;
}
public void setParentDirectoryId(String parentDirectoryId) {
this.parentDirectoryId = parentDirectoryId;
}
}
<!--========================UploadFile.java============================-->
4:在blog\src\com\wiscom\file\model中实现UploadFile的model
package com.wiscom.file.model;
/**
*UploadFile是数据库中关于被上传文件的信息的一个table
*例如上传的图片文件名为:picture.jpg
*
*/
import java.util.Date;
public class UploadFile {
private String id=null;//文件的id
private String fileOriginalName=null;//原始名称,picture
private String alias = null;//别名
private String parentDirectoryId = null;//位于哪个虚拟目录下
private String type = null;//文件的归属类型,相册album
private Date uploadTime = null;//上传时间
private Date updateTime = null;//更新时间
private String userId = null;//用户ID
private String postfix = null;//文件后缀jpg
private String fileSize = null;//文件大小
private String description = null;//文件描述
public String getFileSize() {
return fileSize;
}
public void setFileSize(String fileSize) {
this.fileSize = fileSize;
}
public String getAlias() {
return alias;
}
public void setAlias(String alias) {
this.alias = alias;
}
public String getParentDirectoryId() {
return parentDirectoryId;
}
public void setParentDirectoryId(String parentDirectoryId) {
this.parentDirectoryId = parentDirectoryId;
}
public String getFileOriginalName() {
return fileOriginalName;
}
public void setFileOriginalName(String fileOriginalName) {
this.fileOriginalName = fileOriginalName;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPostfix() {
return postfix;
}
public void setPostfix(String postfix) {
this.postfix = postfix;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getUpdateTime() {
return updateTime;
}
public void setUpdateTime(Date updateTime) {
this.updateTime = updateTime;
}
public Date getUploadTime() {
return uploadTime;
}
public void setUploadTime(Date uploadTime) {
this.uploadTime = uploadTime;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}
<!--=============================Directory.java===============================-->
5:在blog\src\com\wiscom\file\model中实现虚拟目录Directory
package com.wiscom.file.model;
import java.util.Date;
/**
*Directory是数据库中关于用户自己创建目录的一个table
*例如上传的图片文件名为:"根目录\同学\大学同学\"
*
*/
public class Directory {
String id = null;//目录ID
String name = null;//目录名称,大学同学
String directory = null;//目录全名,"根目录\同学\大学同学\"
String parentDirectoryId = null;//上一层目录的ID,目录"根目录\同学\"的ID
int priority = 10;//排序号,实现同级目录的排序
String type= null;//目录的归属类型,相册album
String userId = null;//用户ID
boolean allow = true;//该目录是否可见
Date createTime;//创建时间
Date updateTime;//修改时间
String description = null;//目录描述
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
public Date getUpdateTime() {
return updateTime;
}
public void setUpdateTime(Date updateTime) {
this.updateTime = updateTime;
}
public boolean getAllow() {
return allow;
}
public void setAllow(boolean allow) {
this.allow = allow;
}
public String getDirectory() {
return directory;
}
public void setDirectory(String directory) {
this.directory = directory;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getPriority() {
return priority;
}
public void setPriority(int priority) {
this.priority = priority;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getParentDirectoryId() {
return parentDirectoryId;
}
public void setParentDirectoryId(String parentDirectoryId) {
this.parentDirectoryId = parentDirectoryId;
}
}
<!--===========================以下为DAO===================================-->
<!--===========================以下为DAO===================================-->
<!--===========================以下为DAO===================================-->
<!--============================UPLOADFILE表===============================-->
<!--=======================UploadFileManager.java==========================-->
6:blog\src\com\wiscom\file\service下的UploadFileManager接口,体现面向接口编程:
package com.wiscom.file.service;
import com.wiscom.file.model.UploadFile;
import java.util.List;
public interface UploadFileManager {
//根据ID从表中获得一个上传文件
public UploadFile getFile(String id) throws UploadFileNotFoundException;
//在表中保存一个上传文件的记录
public void saveFile(UploadFile uploadFile);
//在表中删除一个上传文件的记录
public void removeFile(String fileId);
//在表中根据真实文件名获得一个上传文件的记录
public UploadFile getFilesByFileOriginalName(String fileOriginalName);
//在表中根据别名获得一个上传文件的记录
public UploadFile getFileByAlias(String alias);
//列出该目录下的所有文件
public List getFilesByParentDirectoryId(String parentDirectoryId);
//根据归属查(这里就是album)找整站所有文件
public List getFilesByType(String type);
//根据归属查(这里就是album)找该用户所有文件
public List getFilesByType(String userId,String type);
//根据用户ID查出所有文件
public List getFilesByUserId(String userId);
//根据文件后缀查出所有文件
public List getFilesByPostfix(String postfix);
//将srcId目录下的文件文件转移到destId目录下
public void moveFileDirectory(String srcId,String destId);
//检查用户userId是否存有type归属(这里是album)的fileOriginalName.postfix的文件
public boolean checkFileExist(String fileOriginalName,String postfix,String type,String userId);
}
<!--=====================AbstractUploadFileManager.java===================-->
7:抽象类AbstractUploadFileManager,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.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.jdbc.support.incrementer.DataFieldMaxValueIncrementer;
import com.wiscom.file.model.UploadFile;
import com.wiscom.file.service.UploadFileManager;
public abstract class AbstractUploadFileManager extends JdbcDaoSupport implements UploadFileManager {
private static Log logger = LogFactory.getFactory().getInstance(
AbstractUploadFileManager.class);
protected DataFieldMaxValueIncrementer idGenerator;
public void setIdGenerator(DataFieldMaxValueIncrementer idGenerator) {
this.idGenerator = idGenerator;
}
public void saveFile(UploadFile uploadFile) {
if (uploadFile.getId() == null) {
uploadFile.setId(idGenerator.nextStringValue());
insertFile(uploadFile);
} else {
updateFile(uploadFile);
}
}
public void removeFile(String fileId) {
try {
UploadFile uploadFile = getFile(fileId);
deleteFile(fileId);
} catch (Exception e) {
logger.error(e);
}
}
public void moveFileDirectory(String srcId,String destId){
List files = getFilesByParentDirectoryId(srcId);
updateFileDirectory(srcId, destId);
for (int i = 0; i < files.size(); i++) {
UploadFile uploadFile = (UploadFile) files.get(i);
uploadFile.setParentDirectoryId(destId);
}
}
abstract void updateFileDirectory(String srcId,String destId);
abstract void insertFile(UploadFile uploadFile);
abstract void updateFile(UploadFile uploadFile);
abstract void deleteFile(String fileId);
}
<!--=====================GeneralUploadFileManager.java========================-->
8:基本DAO的实现类GeneralUploadFileManager
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.UploadFile;
import com.wiscom.file.service.UploadFileNotFoundException;
public class GeneralUploadFileManager extends AbstractUploadFileManager {
public void deleteFile(String fileId) {
String sql = "delete from UPLOADFILE where ID=?";
getJdbcTemplate().update(sql, new Object[] { fileId });
}
public boolean checkFileExist(String fileOriginalName,String postfix,String type,String userId) {
String sql="select count(*) from UPLOADFILE where FILEORIGINALNAME=? And POSTFIX=? And TYPE=? And USERID=?";
return getJdbcTemplate().queryForInt(sql,new Object[] { fileOriginalName,postfix,type,userId })>0;
}
public void insertFile(final UploadFile uploadFile) {
String sql = "insert into UPLOADFILE (ID,FILEORIGINALNAME,ALIAS,PARENTDIRECTORYID,TYPE,UPLOADTIME,UPDATETIME,USERID,POSTFIX,FILESIZE,DESCRIPTION) "
+ " 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});
}
}
<!--=======================================================================-->
<!--=======================================================================-->
<!--=======================================================================-->
<!--============================DIRECTORY表================================-->
<!--============================DirectoryManager.java======================-->
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);
}
<!--===================AbstractDirectoryManager.java========================-->
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);
}
<!--==================GeneralDirectoryManager.java====================-->
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());
}
}
<!--=======================================================================-->
<!--=======================================================================-->
<!--=======================================================================-->
<!--=======================================================================-->
<!--=========================配置blog-servlet.xml==========================-->
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 class="com.wiscom.file.service.impl.GeneralUploadFileManager">
<property name="dataSource" ref="dataSource"/>
<property name="idGenerator">
<bean class="org.springframework.jdbc.support.incrementer.OracleSequenceMaxValueIncrementer">
<property name="dataSource" 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 class="com.wiscom.file.service.impl.GeneralDirectoryManager">
<property name="dataSource" ref="dataSource"/>
<property name="idGenerator">
<bean class="org.springframework.jdbc.support.incrementer.OracleSequenceMaxValueIncrementer">
<property name="dataSource" ref="dataSource"/>
<property name="incrementerName" value="SEQ_WEBLOGDIRECTORY_ID"/>
</bean>
</property>
</bean>
</property>
</bean>
<!--=======================================================================-->
<!--=======================================================================-->
<!--=======================================================================-->
<!--=======================================================================-->
<!--==========================albumUpload.jsp===============================-->
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>
<!--=============================include.jsp===============================-->
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" %>
<!--=======================albumUpload.htm in Mapping=======================-->
blog-servlet.xml中加入:
<bean id="HandlerMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/albumUpload.htm">AlbumUploadController</prop>
<prop key="/albumView.htm">AlbumViewController</prop>
<prop key="/albumEdit.htm">AlbumEditController</prop>
<prop key="/albumMove.htm">AlbumMoveController</prop>
<prop key="/albumDelete.htm">AlbumDeleteController</prop>
<prop key="/directoryCreate.htm">DirectoryCreateController</prop>
<prop key="/directoryEdit.htm">DirectoryEditController</prop>
<prop key="/directoryDelete.htm">DirectoryDeleteController</prop>
</props>
</property>
</bean>
<!--====================配置AlbumUploadController==========================-->
15:blog-servlet.xml中加入:
<bean id="AlbumUploadController" class="com.wiscom.file.web.admin.FileUploadController">
<property name="type" 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>
<!--================实现AlbumUploadController.java==========================-->
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;
}
}
<!--============================修改图片===================================-->
<!--=========================配置blog-servlet.xml==========================-->
16. <bean id="AlbumEditController"
class="com.wiscom.file.web.admin.FileEditController">
<property name="uploadFileManager">
<ref bean="com.wiscom.file.service.WeblogFileManager"/>
</property>
<property name="commandName" value="file"/>
<property name="sessionForm" value="true"/>
<property name="formView" value="WEB-INF/jsp/albumEdit.jsp"/>
</bean>
<!--==============================albumEdit.jsp=============================-->
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>
<!--============================实现FileEditController.java================-->
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;
}
}
<!--============================删除图片===================================-->
<!--=========================配置blog-servlet.xml==========================-->
19.配置AlbumDeleteController
<bean id="AlbumDeleteController" class="com.wiscom.file.web.admin.FileDeleteController">
<property name="uploadDir" value="D:\blog\build\blog\upload\"/>
<property name="uploadFileManager">
<ref bean="com.wiscom.file.service.WeblogFileManager"/>
</property>
<property name="viewName" value="/albumView.htm"/>
</bean>
<!--===================实现AlbumDeleteController.java===========================-->
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());
}
}
<!--============================移动图片===================================-->
<!--=========================配置blog-servlet.xml==========================-->
21.配置AlbumMoveController
<bean id="AlbumMoveController" class="com.wiscom.file.web.admin.FileMoveController">
<property name="uploadFileManager">
<ref bean="com.wiscom.file.service.WeblogFileManager"/>
</property>
<property name="viewName" value="/albumView.htm"/>
</bean>
<!--=====================实现AlbumMoveController.java=========================-->
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());
}
}
<!--=========================目录操作======================================-->
<!--=========================新建目录======================================-->
<!--======================配置blog-servlet.xml============================-->
23.配置 DirectoryCreateController
<bean id="DirectoryCreateController" class="com.wiscom.file.web.admin.DirectoryCreateController">
<property name="directoryManager">
<ref bean="com.wiscom.file.service.WeblogDirectoryManager" />
</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>
<!--========================directoryCreate.jsp============================-->
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>
<!--=================实现DirectoryCreateController.java====================-->
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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