本文实例为大家分享了 springmvc + kindeditor 文件上传 的具体代码，供大家参考，具体内容如下
下载 kindeditor
压缩包里面的jar放到tomcat的lib文件夹下，kindeditor文件放工程里，不用的可以删掉
jsp页面
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<%@ page language= "java" contenttype= "text/html; charset=utf-8" pageencoding= "utf-8" %> <%@ taglib prefix= "c" uri= "http://java.sun.com/jsp/jstl/core" %> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd" > <html> <link rel= "stylesheet" href= "https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel= "external nofollow" > <script src= "https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js" ></script> <script src= "https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js" ></script> <script src= "./kindeditor/kindeditor-all-min.js" ></script> <script src= "./kindeditor/lang/zh-cn.js" ></script> <script> kindeditor .ready(function(k) { window.editor = k .create( '#editor_id' , { uploadjson : 'kindeditor/uploadfile' , filemanagerjson : 'kindeditor/filemanager' , allowimageupload : true , //多图上传 allowfilemanager : true , //浏览图片空间 filtermode : false , //html特殊代码过滤 afterblur : function() { this .sync(); }, //编辑器失去焦点(blur)时执行的回调函数（将编辑器的html数据同步到textarea） afterupload : function(url, data, name) { //上传文件后执行的回调函数，必须为3个参数 if (name == "image" || name == "multiimage" ) { //单个和批量上传图片时 if (k( "#pic" ).length > 0 ) { //文本框存在 document .getelementbyid( 'piclist' ).options[document .getelementbyid( 'piclist' ).length] = new option( url, url); //下拉列表框增加一条 document .getelementbyid( 'piclist' ).selectedindex += 1 ; //选定刚新增的这一条 k( "#indexpicimg" ) .html( "<img src='" + url + "' width='150' height='95' />" ); //重置图片展示区div的html内容 k( "#pic" ).val(url); //重置文本框值 } } } }); }); </script> <head> <meta http-equiv= "content-type" content= "text/html; charset=utf-8" > <title>insert title here</title> </head> <body> <form class = "form-horizontal" role= "form" action= "articleadd" method= "post" > <div class = "form-group" > <label for = "firstname" class = "col-sm-2 control-label" >标题</label> <div class = "col-sm-5" > <input type= "text" class = "form-control" id= "title" name= "title" placeholder= "请输入标题" > </div> </div> <div class = "form-group" > <label for = "lastname" class = "col-sm-2 control-label" >类别</label> <div class = "col-sm-3" > <select class = "form-control" name= "categoryid" > <option> 1 </option> <option> 2 </option> <option> 3 </option> <option> 4 </option> <option> 5 </option> </select> </div> </div> <div class = "form-group" > <label for = "lastname" class = "col-sm-2 control-label" >内容</label> <div class = " col-sm-5" > <textarea id= "editor_id" name= "details" class = "form-control" > <strong>html内容</strong> </textarea> </div> </div> <div class = "form-group" > <div class = "col-sm-offset-2 col-sm-10" > <button type= "submit" class = "btn btn-default" >保存草稿</button> </div> </div> </form>
</body> </html> |
kindaction.java
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package com.leo.ows.action;
import java.io.bufferedoutputstream; import java.io.file; import java.io.fileoutputstream; import java.io.printwriter; import java.text.simpledateformat; import java.util.arraylist; import java.util.arrays; import java.util.collections; import java.util.comparator; import java.util.hashmap; import java.util.hashtable; import java.util.iterator; import java.util.list; import java.util.map; import java.util.uuid;
import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import org.apache.commons.fileupload.servlet.servletfileupload; import org.springframework.stereotype.controller; import org.springframework.util.filecopyutils; import org.springframework.web.bind.annotation.requestmapping; import org.springframework.web.bind.annotation.requestmethod; import org.springframework.web.multipart.multipartfile; import org.springframework.web.multipart.multiparthttpservletrequest;
import com.alibaba.fastjson.jsonobject; @controller public class kindaction {
@requestmapping (value = "/kindeditor/uploadfile" , method = requestmethod.post) public void uploadfile(httpservletrequest request, httpservletresponse response) throws exception { printwriter writer = response.getwriter(); // 文件保存目录路径 string savepath = request.getsession().getservletcontext().getrealpath( "/" ) + "upload/image" + file.separatorchar + file.separatorchar;
string saveurl = request.getcontextpath()+ file.separatorchar + "upload/image" + file.separatorchar + file.separatorchar;
// 定义允许上传的文件扩展名 hashmap<string, string> extmap = new hashmap<string, string>(); extmap.put( "image" , "gif,jpg,jpeg,png,bmp" );
// 最大文件大小 long maxsize = 1000000 ; response.setcontenttype( "text/html; charset=utf-8" );
if (!servletfileupload.ismultipartcontent(request)) { writer.println(geterror( "请选择文件。" )); return ; }
file uploaddir = new file(savepath); // 判断文件夹是否存在,如果不存在则创建文件夹 if (!uploaddir.exists()) { uploaddir.mkdirs(); }
// 检查目录写权限 if (!uploaddir.canwrite()) { writer.println(geterror( "上传目录没有写权限。" )); return ; }
string dirname = request.getparameter( "dir" ); if (dirname == null ) { dirname = "image" ; } if (!extmap.containskey(dirname)) { writer.println(geterror( "目录名不正确。" )); return ; }
multiparthttpservletrequest mrequest = (multiparthttpservletrequest) request; map<string, multipartfile> filemap = mrequest.getfilemap(); string filename = null ; for (iterator<map.entry<string, multipartfile>> it = filemap.entryset().iterator(); it.hasnext();) { map.entry<string, multipartfile> entry = it.next(); multipartfile mfile = entry.getvalue(); filename = mfile.getoriginalfilename(); // 检查文件大小 if (mfile.getsize() > maxsize) { writer.println(geterror( "上传文件大小超过限制。" )); return ; } string fileext = filename.substring(filename.lastindexof( "." )+ 1 ); if (!arrays.<string> aslist(extmap.get(dirname).split( "," )).contains(fileext)) { writer.println(geterror( "上传文件扩展名是不允许的扩展名。\n只允许" + extmap.get(dirname) + "格式。" )); return ; } uuid uuid = uuid.randomuuid(); string path = savepath + uuid.tostring() + "." + fileext; saveurl = saveurl + uuid.tostring() + "." + fileext; bufferedoutputstream outputstream = new bufferedoutputstream( new fileoutputstream(path)); filecopyutils.copy(mfile.getinputstream(), outputstream);
jsonobject obj = new jsonobject(); obj.put( "error" , 0 ); obj.put( "url" , saveurl); writer.println(obj.tostring());
} }
private string geterror(string message) { jsonobject obj = new jsonobject(); obj.put( "error" , 1 ); obj.put( "message" , message); return obj.tostring(); }
@requestmapping (value = "/kindeditor/filemanager" , method = requestmethod.get) public void filemanager(httpservletrequest request, httpservletresponse response) throws exception { //根目录路径，可以指定绝对路径，比如 /var/www/attached/ string rootpath = request.getsession().getservletcontext().getrealpath( "/" )+ "upload/" ; //根目录url，可以指定绝对路径，比如 http://www.yoursite.com/attached/ string rooturl = request.getcontextpath() + "/upload/" ; //图片扩展名 string[] filetypes = new string[]{ "gif" , "jpg" , "jpeg" , "png" , "bmp" }; system.out.println(rootpath); string dirname = request.getparameter( "dir" ); if (dirname != null ) { if (!arrays.<string>aslist( new string[]{ "image" , "flash" , "media" , "file" }).contains(dirname)){ system.out.println( "invalid directory name." ); return ; } rootpath += dirname + "/" ; rooturl += dirname + "/" ; file savedirfile = new file(rootpath); if (!savedirfile.exists()) { savedirfile.mkdirs(); } } //根据path参数，设置各路径和url string path = request.getparameter( "path" ) != null ? request.getparameter( "path" ) : "" ; string currentpath = rootpath + path; string currenturl = rooturl + path; string currentdirpath = path; string moveupdirpath = "" ; if (! "" .equals(path)) { string str = currentdirpath.substring( 0 , currentdirpath.length() - 1 ); moveupdirpath = str.lastindexof( "/" ) >= 0 ? str.substring( 0 , str.lastindexof( "/" ) + 1 ) : "" ; }
//排序形式，name or size or type string order = request.getparameter( "order" ) != null ? request.getparameter( "order" ).tolowercase() : "name" ;
//不允许使用..移动到上一级目录 if (path.indexof( ".." ) >= 0 ) { system.out.println( "access is not allowed." ); return ; } //最后一个字符不是/ if (! "" .equals(path) && !path.endswith( "/" )) { system.out.println( "parameter is not valid." ); return ; } //目录不存在或不是目录 file currentpathfile = new file(currentpath); if (!currentpathfile.isdirectory()){ system.out.println( "directory does not exist." ); return ; }
//遍历目录取的文件信息 list<hashtable> filelist = new arraylist<hashtable>(); if (currentpathfile.listfiles() != null ) { for (file file : currentpathfile.listfiles()) { hashtable<string, object> hash = new hashtable<string, object>(); string filename = file.getname(); if (file.isdirectory()) { hash.put( "is_dir" , true ); hash.put( "has_file" , (file.listfiles() != null )); hash.put( "filesize" , 0l); hash.put( "is_photo" , false ); hash.put( "filetype" , "" ); } else if (file.isfile()){ string fileext = filename.substring(filename.lastindexof( "." ) + 1 ).tolowercase(); hash.put( "is_dir" , false ); hash.put( "has_file" , false ); hash.put( "filesize" , file.length()); hash.put( "is_photo" , arrays.<string>aslist(filetypes).contains(fileext)); hash.put( "filetype" , fileext); } hash.put( "filename" , filename); hash.put( "datetime" , new simpledateformat( "yyyy-mm-dd hh:mm:ss" ).format(file.lastmodified())); filelist.add(hash); } }
if ( "size" .equals(order)) { collections.sort(filelist, new sizecomparator()); } else if ( "type" .equals(order)) { collections.sort(filelist, new typecomparator()); } else { collections.sort(filelist, new namecomparator()); } jsonobject result = new jsonobject(); result.put( "moveup_dir_path" , moveupdirpath); result.put( "current_dir_path" , currentdirpath); result.put( "current_url" , currenturl); result.put( "total_count" , filelist.size()); result.put( "file_list" , filelist); response.setcontenttype( "application/json; charset=utf-8" ); system.out.println(result.tojsonstring()); printwriter writer=response.getwriter(); writer.println(result); }
public class namecomparator implements comparator { public int compare(object a, object b) { hashtable hasha = (hashtable)a; hashtable hashb = (hashtable)b; if ((( boolean )hasha.get( "is_dir" )) && !(( boolean )hashb.get( "is_dir" ))) { return - 1 ; } else if (!(( boolean )hasha.get( "is_dir" )) && (( boolean )hashb.get( "is_dir" ))) { return 1 ; } else { return ((string)hasha.get( "filename" )).compareto((string)hashb.get( "filename" )); } } } public class sizecomparator implements comparator { public int compare(object a, object b) { hashtable hasha = (hashtable)a; hashtable hashb = (hashtable)b; if ((( boolean )hasha.get( "is_dir" )) && !(( boolean )hashb.get( "is_dir" ))) { return - 1 ; } else if (!(( boolean )hasha.get( "is_dir" )) && (( boolean )hashb.get( "is_dir" ))) { return 1 ; } else { if ((( long )hasha.get( "filesize" )) > (( long )hashb.get( "filesize" ))) { return 1 ; } else if ((( long )hasha.get( "filesize" )) < (( long )hashb.get( "filesize" ))) { return - 1 ; } else { return 0 ; } } } } public class typecomparator implements comparator { public int compare(object a, object b) { hashtable hasha = (hashtable)a; hashtable hashb = (hashtable)b; if ((( boolean )hasha.get( "is_dir" )) && !(( boolean )hashb.get( "is_dir" ))) { return - 1 ; } else if (!(( boolean )hasha.get( "is_dir" )) && (( boolean )hashb.get( "is_dir" ))) { return 1 ; } else { return ((string)hasha.get( "filetype" )).compareto((string)hashb.get( "filetype" )); } } }
} |
效果图
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
原文链接：https://blog.csdn.net/shihua0610/article/details/77183262
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