fckeditor上传图片途径

fckeditor上传图片路径
[java]?view plaincopy

1. package?com.bzlccn.oa.common.fck;??
2. import?java.io.File;??
3. import?java.io.FileFilter;??
4. import?java.io.FileOutputStream;??
5. import?java.io.IOException;??
6. import?java.io.InputStream;??
7. import?java.util.ArrayList;??
8. import?java.util.Arrays;??
9. import?java.util.HashMap;??
10. import?java.util.List;??
11. import?java.util.Map;??
12. import?javax.servlet.ServletContext;??
13. import?net.fckeditor.connector.Connector;??
14. import?net.fckeditor.connector.exception.FolderAlreadyExistsException;??
15. import?net.fckeditor.connector.exception.InvalidCurrentFolderException;??
16. import?net.fckeditor.connector.exception.InvalidNewFolderNameException;??
17. import?net.fckeditor.connector.exception.WriteException;??
18. import?net.fckeditor.handlers.ResourceType;??
19. import?net.fckeditor.tool.UtilsFile;??
20. import?org.apache.commons.io.IOUtils;??
21. import?org.apache.commons.io.filefilter.DirectoryFileFilter;??
22. import?org.apache.commons.io.filefilter.FileFileFilter;??
23. import?org.slf4j.Logger;??
24. import?org.slf4j.LoggerFactory;??
25. public?class?ContextConnector?implements?Connector?{??
26. ????private?final?Logger?logger?=?LoggerFactory.getLogger(ContextConnector.class);??
27. ????protected?ServletContext?servletContext;??
28. ????//初始化??
29. ????public?void?init(final?ServletContext?servletContext)?throws?Exception?{??
30. ????????this.servletContext?=?servletContext;??
31. ????????String?defaultAbsolutePath?=?UtilsPath.getRealUserFilesAbsolutePath();??
32. ????????if?(defaultAbsolutePath?==?null)?{??
33. ????????????logger.error("The?context?root?cannot?be?resolved?against?the?local?filesystem");??
34. ????????????logger.info("Your?servlet?container/application?server?does?not?expand?deployed?war?files");??
35. ????????????logger??
36. ????????????????????.debug("Use?another?Connector?implementation?(e.g.?LocalConnector)?and?consult?http://www.fckeditor.net/forums/viewtopic.php?f=6&t=11568");??
37. ????????????throw?new?NullPointerException("The?real?context?root?cannot?be?resolved?against?the?local?filesystem");??
38. ????????}??
39. ????}??
40. ????//把文件上传到我们指定的路径中，路径的获取在UtilsPath中实现。??
41. ????public?String?fileUpload(final?ResourceType?type,?final?String?currentFolder,?final?String?fileName,??
42. ????????????final?InputStream?inputStream)?throws?InvalidCurrentFolderException,?WriteException?{??
43. ????????String?absolutePath?=?UtilsPath.getRealUserFilesAbsolutePath();??
44. ????????File?typeDir?=?getOrCreateResourceTypeDir(absolutePath,?type);??
45. ????????File?currentDir?=?new?File(typeDir,?currentFolder);??
46. ????????if?(!currentDir.exists()?||?!currentDir.isDirectory())??
47. ????????????throw?new?InvalidCurrentFolderException();??
48. ????????File?newFile?=?new?File(currentDir,?fileName);??
49. ????????File?fileToSave?=?UtilsFile.getUniqueFile(newFile.getAbsoluteFile());??
50. ????????try?{??
51. ????????????IOUtils.copyLarge(inputStream,?new?FileOutputStream(fileToSave));??
52. ????????}?catch?(IOException?e)?{??
53. ????????????throw?new?WriteException();??
54. ????????}??
55. ????????return?fileToSave.getName();??
56. ????}??
57. ????//创建文件夹??
58. ????public?void?createFolder(final?ResourceType?type,?final?String?currentFolder,?final?String?newFolder)??
59. ????????????throws?InvalidCurrentFolderException,?InvalidNewFolderNameException,?FolderAlreadyExistsException?{??
60. ????????String?absolutePath?=?UtilsPath.getRealUserFilesAbsolutePath();??
61. ????????File?typeDir?=?getOrCreateResourceTypeDir(absolutePath,?type);??
62. ????????File?currentDir?=?new?File(typeDir,?currentFolder);??
63. ????????if?(!currentDir.exists()?||?!currentDir.isDirectory())??
64. ????????????throw?new?InvalidCurrentFolderException();??
65. ????????File?newDir?=?new?File(currentDir,?newFolder);??
66. ????????if?(newDir.exists())??
67. ????????????throw?new?FolderAlreadyExistsException();??
68. ????????if?(!newDir.mkdir())??
69. ????????????throw?new?InvalidNewFolderNameException();??
70. ????}??
71. ????//得到所有的文件??
72. ????public?List<Map<String,?Object>>?getFiles(ResourceType?type,?String?currentFolder)??
73. ????????????throws?InvalidCurrentFolderException?{??
74. ????????String?absolutePath?=?UtilsPath.getRealUserFilesAbsolutePath();??
75. ????????File?typeDir?=?getOrCreateResourceTypeDir(absolutePath,?type);??
76. ????????File?currentDir?=?new?File(typeDir,?currentFolder);??
77. ????????if?(!currentDir.exists()?||?!currentDir.isDirectory())??
78. ????????????throw?new?InvalidCurrentFolderException();??
79. ????????//?collect?files??
80. ????????List<Map<String,?Object>>?files;??
81. ????????Map<String,?Object>?fileMap;??
82. ????????File[]?fileList?=?currentDir.listFiles((FileFilter)?FileFileFilter.FILE);??
83. ????????files?=?new?ArrayList<Map<String,?Object>>(fileList.length);??
84. ????????for?(File?file?:?fileList)?{??
85. ????????????fileMap?=?new?HashMap<String,?Object>(2);??
86. ????????????fileMap.put(Connector.KEY_NAME,?file.getName());??
87. ????????????fileMap.put(Connector.KEY_SIZE,?file.length());??
88. ????????????files.add(fileMap);??
89. ????????}??
90. ????????return?files;??
91. ????}??
92. ????//得到所有文件夹??
93. ????public?List<String>?getFolders(final?ResourceType?type,?final?String?currentFolder)??
94. ????????????throws?InvalidCurrentFolderException?{??
95. ????????String?absolutePath?=?UtilsPath.getRealUserFilesAbsolutePath();??
96. ????????File?typeDir?=?getOrCreateResourceTypeDir(absolutePath,?type);??
97. ????????File?currentDir?=?new?File(typeDir,?currentFolder);??
98. ????????if?(!currentDir.exists()?||?!currentDir.isDirectory())??
99. ????????????throw?new?InvalidCurrentFolderException();??
100. ????????String[]?fileList?=?currentDir.list(DirectoryFileFilter.DIRECTORY);??
101. ????????return?Arrays.asList(fileList);??
102. ????}??
103. ????//根据上传文件的类型创建目录。??
104. ????protected?static?File?getOrCreateResourceTypeDir(final?String?baseDir,?final?ResourceType?type)?{??
105. ????????File?dir?=?new?File(baseDir,?type.getPath());??
106. ????????if?(!dir.exists())??
107. ????????????dir.mkdirs();??
108. ????????return?dir;??
109. ????}??
110. }??

?

上述ContextConnector类中用到的UtilsPath工具类的代码如下：

1. package?com.bzlccn.oa.common.fck;??
2. import?org.slf4j.Logger;??
3. import?org.slf4j.LoggerFactory;??
4. import?com.bzlccn.oa.common.util.Constants;??
5. import?com.bzlccn.oa.common.util.OSUtil;??
6. import?com.bzlccn.oa.common.util.exception.SystemConfigrationException;??
7. public?class?UtilsPath?{??
8. ????private?static?final?Logger?logger?=?LoggerFactory.getLogger(UtilsPath.class);??
9. ????public?static?String?getRealUserFilesAbsolutePath()?{??
10. ????????String?path?=?"";??
11. ????????try?{?????
12. ????????????//需要判断所用操作系统，根据不同的系统设置路径。??
13. ????????????if?(OSUtil.isUnixLikeSystem()?==?true)?{??
14. ????????????????path?=?Constants.getPropertyOf(Constants.FCK_LINUX_PATH);??
15. ????????????}?else?{??
16. ????????????????path?=?Constants.getPropertyOf(Constants.FCK_WINDOWS_PATH);??
17. ????????????}??
18. ????????}?catch?(SystemConfigrationException?e)?{??
19. ????????????if?(OSUtil.isUnixLikeSystem()?==?true)?{??
20. ????????????????path?=?"//usr/local/OA//fck";??
21. ????????????}?else?{??
22. ????????????????path?=?"c://oa//fck";??
23. ????????????}??
24. ????????????logger.info("配置文件出错，使用默认路径("+path+")保存fck上传文件");??
25. ????????}??
26. ????????return?path;??
27. ????}??
28. }??

?

为了使上传的文件跨平台（目前只支持liunx和windwos）还需要当前用的系统。工具类如下：

1. package?com.bzlccn.oa.common.util;??
2. public?class?OSUtil?{??
3. ????private?static?final?String?WINDOWS?=?"WINDOWS";??
4. ????/**?
5. ?????*??判断当前操作系统的类型?
6. ?????*?
7. ?????*?@return?false?means?window?system?,true?means?unix?like?system?
8. ?????*/??
9. ?????public?static?boolean?isUnixLikeSystem(){??
10. ?????????String?name?=?System.getProperty(Constants.OS_NAME_KEY)?;??
11. ?????????if(name?!=?null){??
12. ?????????????if(name.toUpperCase().indexOf(WINDOWS)?==?-1){?//it?means?it's?unix?like?system??
13. ?????????????????return?true;??
14. ?????????????}??
15. ?????????}??
16. ?????????return?false;??
17. ?????}??
18. }??

?

为了实现上传路径可灵活配置还需要写个读取配置文件的工具类：

?

1. package?com.bzlccn.oa.common.util;??
2. import?org.apache.commons.configuration.Configuration;??
3. import?org.apache.commons.configuration.ConfigurationException;??
4. import?org.apache.commons.configuration.PropertiesConfiguration;??
5. import?com.bzlccn.oa.common.util.exception.SystemConfigrationException;??
6. public?class?Constants?{??
7. ?????
8. ????//fck文件上传??
9. ????public?static?final?String?FCK_WINDOWS_PATH="fck.windows.path";??
10. ????public?static?final?String?FCK_LINUX_PATH="fck.linux.path";??
11. ????static{??
12. ????????try?{??
13. ????????????config?=?new?PropertiesConfiguration("fckeditor.properties");??
14. ????????}?catch?(ConfigurationException?e)?{??
15. ????????????e.printStackTrace();??
16. ????????}??
17. ????}??
18. ??????
19. ????public?static?String?getPropertyOf(String?key)?throws?SystemConfigrationException{??
20. ????????if(config?==?null)?{??
21. ????????????throw?new?SystemConfigrationException("can?not?configure?system");??
22. ????????}??
23. ????????return?config.getString(key);??
24. ????}??
25. ??????
26. ????public?static?void?main(String?args[])?throws?ConfigurationException,?SystemConfigrationException{??
27. ????????System.out.println(getPropertyOf("port"));??
28. ????}??
29. }??

?

到此为把文件上传到指定路径的功能已经基本实现，只要让FCK调用我们的ContextConnector类就可以了，怎么去让FCK调用我们自己
实现的这个ContextConnector类呢，只要配置一下配置文件就可以了。只要在FCK的配置文件中添加如下配置文件即可：
connector.impl=com.bzlccn.oa.common.fck.ContextConnector

下面就是把我们上传的文件怎么显示的问题。实现是这样的，首先我们要自己写个下载文件的servlet，具体代码如下：

1. package?com.bzlccn.oa.common.fck;??
2. import?java.io.FileInputStream;??
3. import?java.io.IOException;??
4. import?java.io.InputStream;??
5. import?javax.servlet.ServletException;??
6. import?javax.servlet.ServletOutputStream;??
7. import?javax.servlet.http.HttpServlet;??
8. import?javax.servlet.http.HttpServletRequest;??
9. import?javax.servlet.http.HttpServletResponse;??
10. import?org.apache.taglibs.standard.extra.spath.Path;??
11. public?class?FCKDownloadServlet?extends?HttpServlet?{??
12. ????private?static?final?long?serialVersionUID?=?-5742008970929377161L;??
13. ????@Override??
14. ????protected?void?doGet(final?HttpServletRequest?request,??
15. ????????????final?HttpServletResponse?response)?throws?ServletException,??
16. ????????????IOException?{??
17. ??????????????????doPost(request,response);??
18. ????}??
19. ????@Override??
20. ????protected?void?doPost(final?HttpServletRequest?request,??
21. ????????????final?HttpServletResponse?response)?throws?ServletException,??
22. ????????????IOException?{??
23. ????????String?path=request.getParameter("path");??
24. ????????request.setCharacterEncoding("UTF-8");??
25. ????????response.setCharacterEncoding("UTF-8");??
26. ????????setResponseContentType(response,path);??
27. ????????response.setHeader("Cache-Control",?"no-cache");??
28. ????????if?(path!=null)?{??
29. ????????????path=UtilsPath.getRealUserFilesAbsolutePath()+path;??
30. ????????}else{??
31. ????????????path=this.getServletContext().getRealPath("/images/sign/no.JPG");??
32. ????????}??
33. ????????InputStream?is?=?new?FileInputStream(path);??
34. ????????ServletOutputStream??servletOutputStream=response.getOutputStream();??
35. ????????//?循环取出流中的数据??
36. ????????byte[]?b?=?new?byte[100];??
37. ????????int?len;??
38. ????????try?{??
39. ????????????while?((len?=?is.read(b))?>?0)?{??
40. ????????????????servletOutputStream.write(b,?0,?len);??
41. ????????????}??
42. ????????}?catch?(IOException?e)?{??
43. ????????????e.printStackTrace();??
44. ????????}finally{??
45. ????????????if?(servletOutputStream!=null)?{??
46. ????????????????servletOutputStream.flush();??
47. ????????????????servletOutputStream.close();??
48. ????????????}??
49. ????????????if(is?!=?null)?is.close();??
50. ????????}??
51. ????}??
52. ????/**?
53. ?????*?根据文件扩展名设置contenttype?
54. ?????*?@param?eresponse?
55. ?????*?@param?path?
56. ?????*/??
57. ????private?void?setResponseContentType(HttpServletResponse?response,String?path){??
58. ????????String?contentType="image/jpg;charset=UTF-8";??
59. ????????if?(path!=null)?{??
60. ????????????String?exName=path.substring(path.lastIndexOf(".")+1);??
61. ????????????if?("bmp|gif|jpeg|jpg|png".indexOf(exName.toLowerCase())>=0)?{??
62. ????????????????contentType="image/"+exName+";charset=UTF-8";??
63. ????????????}??
64. ????????????if?("swf|fla".indexOf(exName.toLowerCase())>=0)?{??
65. ????????????????contentType="application/x-shockwave-flash;charset=UTF-8";??
66. ????????????}??
67. ????????}??
68. ????????response.setContentType(contentType);??
69. ????}??
70. ??????
71. }??

?

为了让FCK显示图片的时候调用我们的FCKDownloadServlet还需去重载ServerRootPathBuilder类中的getUserFilesPath方法，实现如下

1. package?com.bzlccn.oa.common.fck;??
2. import?javax.servlet.http.HttpServletRequest;??
3. import?net.fckeditor.requestcycle.impl.ServerRootPathBuilder;??
4. public?class?ContextPathBuilder?extends?ServerRootPathBuilder?{??
5. ????@Override??
6. ????public?String?getUserFilesPath(final?HttpServletRequest?request)?{??
7. ????????return?request.getContextPath().concat("/fck/download.servlet?path=");//"/fck/download.servlet?"要和web.xml中配置的FCKDownloadServlet路径一致。??
8. ????}??
9. }??

?

上述类中getUserFilesPath方法主要就是获取显示文件的路径。怎么让FCK调用我们的getUserFilesPath方法的，通要的还是要
向FCK配置文件中写入：
connector.userPathBuilderImpl = com.bzlccn.oa.common.fck.ContextPathBuilder
哈哈，这样就可以了，等等，还没有完呢，还得需要配置FCKDownloadServlet呢，在web.xml中需要输入：
?<servlet>
??<servlet-name>ConnectorServlet</servlet-name>
??<servlet-class>net.fckeditor.connector.ConnectorServlet</servlet-class>
??<load-on-startup>1</load-on-startup>
?</servlet>
?
?<servlet>
??<servlet-name>FCKDownloadServlet</servlet-name>
??<servlet-class>com.bzlccn.oa.common.fck.FCKDownloadServlet</servlet-class>
?</servlet>

?<servlet-mapping>
??<servlet-name>ConnectorServlet</servlet-name>
??<!-- Do not wrap this line otherwise Glassfish will fail to load this file -->
??<url-pattern>/fckeditor/editor/filemanager/connectors/*</url-pattern>
?</servlet-mapping>
????????
??? <servlet-mapping>
??<servlet-name>FCKDownloadServlet</servlet-name>
??<url-pattern>/fck/download.servlet</url-pattern>
?</servlet-mapping>

下面再把FCK的整体配置文件贴出来：
connector.userActionImpl=net.fckeditor.requestcycle.impl.EnabledUserAction
connector.impl=com.bzlccn.oa.common.fck.ContextConnector
connector.userPathBuilderImpl = com.bzlccn.oa.common.fck.ContextPathBuilder
fck.windows.path=c:/oa/fck
fck.linux.path=/home/oa/fck
还需要说明一点就是我们用的FCK的版本是2.6.5
写的有点匆忙，难免有不妥之处望指正，多拍砖。

实现效果如图：