改造百度UMeditor(UEditor-min)富文本编辑器的图片上传功能

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最近项目需要新增一个发布文章的模块，用的是百度的Ueditor富文本编辑器。

公司用的是阿里云的图片服务器，需要直接把文章中图片上传到服务器上，但是这个编辑器的上传图片是直接上传到Tomcat的根目录。

不能满足要求，尝试改造了一下上传图片的功能。

下载下来的编辑器直接导入项目webapp目录下

因为用的是Spring框架，基本已经包含了ueditor需要的几个jar包，所以不需要导入了。

需要注意的是，这个ueditor-1.1.1.jar的这个jar包，其实不需要导入，因为这个包里面就只有一个文件Uploader.java

而在ueditor的jsp目录下已经有了Uploader.java文件，所以直接把这个文件copy到工作区中，访问这个文件就可以了。

在调用的地方改一下目录

把

<%@ page import="com.baidu.ueditor.um.Uploader" %>

改成

<%@ page import="com.myproject.upload.Uploader"%>

如下图：

然后关键就是要改造一下Uploader.java这个类。

原有上传代码如下：

public void upload() throws Exception {
boolean isMultipart = ServletFileUpload.isMultipartContent(this.request);
if (!isMultipart) {
this.state = this.errorInfo.get("NOFILE");
return;
}
DiskFileItemFactory dff = new DiskFileItemFactory();
String savePath = this.getFolder(this.savePath);
dff.setRepository(new File(savePath));
try {
ServletFileUpload sfu = new ServletFileUpload(dff);
sfu.setSizeMax(this.maxSize * 1024);
sfu.setHeaderEncoding("utf-8");
FileItemIterator fii = sfu.getItemIterator(this.request);
while (fii.hasNext()) {
FileItemStream fis = fii.next();
if (!fis.isFormField()) {
this.originalName = fis.getName().substring(fis.getName().lastIndexOf(System.getProperty("file.separator")) + 1);
if (!this.checkFileType(this.originalName)) {
this.state = this.errorInfo.get("TYPE");
continue;
}
this.fileName = this.getName(this.originalName);
this.type = this.getFileExt(this.fileName);
// 获取了存放文件的相对路径
this.url = savePath + "/" + this.fileName;
BufferedInputStream in = new BufferedInputStream(fis.openStream());
File file = new File(this.getPhysicalPath(this.url));
FileOutputStream out = new FileOutputStream( file );
BufferedOutputStream output = new BufferedOutputStream(out);
// 这里直接在服务器根目录生成了图片文件
Streams.copy(in, output, true);
this.state=this.errorInfo.get("SUCCESS");
this.size = file.length();
//UE中只会处理单张上传，完成后即退出
break;
} else {
String fname = fis.getFieldName();
//只处理title，其余表单请自行处理
if(!fname.equals("pictitle")){
continue;
}
BufferedInputStream in = new BufferedInputStream(fis.openStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuffer result = new StringBuffer();
while (reader.ready()) {
result.append((char)reader.read());
}
this.title = new String(result.toString().getBytes(),"utf-8");
reader.close(); }
}
} catch (SizeLimitExceededException e) {
this.state = this.errorInfo.get("SIZE");
} catch (InvalidContentTypeException e) {
this.state = this.errorInfo.get("ENTYPE");
} catch (FileUploadException e) {
this.state = this.errorInfo.get("REQUEST");
} catch (Exception e) {
this.state = this.errorInfo.get("UNKNOWN");
}
}

改造后如下：

// 改造后的代码，百度原有代码注释了
public void upload() throws Exception
{
boolean isMultipart = ServletFileUpload.isMultipartContent(this.request);
if (!isMultipart)
{
this.state = this.errorInfo.get("NOFILE");
return;
}
try
{
MultipartResolver resolver = new CommonsMultipartResolver(
this.request.getSession().getServletContext());
MultipartHttpServletRequest multipartRequest = resolver.resolveMultipart(request);
CommonsMultipartFile orginalFile = (CommonsMultipartFile) multipartRequest.getFile("upfile"); this.originalName = orginalFile.getOriginalFilename();
if (!this.checkFileType(this.originalName))
{
this.state = this.errorInfo.get("TYPE");
return;
}
this.type = this.getFileExt(this.originalName);
this.size = orginalFile.getSize(); // 这里是公司内部上传到阿里云服务器的工具类
String key = ImgUtils.uploadImage("xxxx",
ImageKind.Picture,
orginalFile.getInputStream(),
this.size); this.fileName = key;
this.url = "http://xxx.aliyuncs.com/" + key;
this.state = this.errorInfo.get("SUCCESS");
}
catch (Exception e)
{
this.state = this.errorInfo.get("UNKNOWN");
}
}

用到了Spring的这两个文件

import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

然后编辑器页面上显示的时候，img的src目录需要改一下

callback: function (editor, $w, url, state) { if (state == "SUCCESS") {
//显示图片计数+1
Upload.showCount++;
var $img = $("<img src='" + editor.options.imagePath + url + "' class='edui-image-pic' />"),
var $img = $("<img src='" + url + "' class='edui-image-pic' />"),
$item = $("<div class='edui-image-item edui-image-upload-item'><div class='edui-image-close'></div></div>").append($img); if ($(".edui-image-upload2", $w).length < 1) {
$(".edui-image-content", $w).append($item); Upload.render(".edui-image-content", 2)
.config(".edui-image-upload2");
} else {
$(".edui-image-upload2", $w).before($item).show();
} $img.on("load", function () {
Base.scale(this, 120);
Base.close($(this));
$(".edui-image-content", $w).focus();
}); } else {
currentDialog.showTip( state );
window.setTimeout( function () { currentDialog.hideTip(); }, 3000 );
} Upload.toggleMask(); }