百度UEditor开发案例（JSP）

2021-09-23 13:51:51

本案例的开发环境：MyEclipse+tomcat+jdk

本案例的开发内容：

用百度编辑器发布新闻（UEditor的初始化开发部署）
编辑已发过的新闻（UEditor的应用——编辑旧文章）
上传附件、图片等

由于百度编辑器强大的功能，web开发爱好者无不喜爱。但网上关于其开发的具体细节或整个项目的开发案例并不是很多，因此写下这篇简单开发百度编辑器UEditor的案例。

此案例只是简单的应用Ueditor，仅供参考。

项目名称：UEditorCase

项目组织结构图：

(一)UEditor的开发部署

到官方网站下载ueditor jsp（utf-8）版开发包。ueditor1_2_5_0-utf8-jsp

如左图，我是放在ueditor文件夹下

index.jsp页面代码编写：

<%@ page language="java"import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>百度编辑器开发实例</title>

<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This is my page">

<scripttype="text/javascript"src="ueditor/editor_config.js"></script>
<scripttype="text/javascript"src="ueditor/editor_all.js"></script>
<LINKrel=stylesheethref="ueditor/themes/default/css/ueditor.css">
</head>

<body>
<formaction="publish.action"method="post">
类别： <inputtype="text"name="category"/><br/>
标题：<inputtype="text"name="title"/><br/>

<textareaname="content"id="myEditor">这里写你的初始化内容</textarea>
<scripttype="text/javascript">
var editor =new UE.ui.Editor();
editor.render("myEditor");
//1.2.4以后可以使用一下代码实例化编辑器
//UE.getEditor(‘myEditor‘)
</script>
<inputtype="submit"value="提交"/>

</form>

</body>
</html>

配置editor_config.js文件

找到：

URL = window.UEDITOR_HOME_URL||tmp.substr(0,tmp.lastIndexOf("\/")+1).replace("_examples/","").replace("website/","");

将其改为：

URL = window.UEDITOR_HOME_URL||"/UEditorCase/ueditor/";

PublishAction.java代码：

package xiaoxiao.action;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;

import org.apache.struts2.ServletActionContext;
import org.apache.taglibs.standard.lang.jstl.test.PageContextImpl;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

publicclassPublishActionextendsActionSupport{
privateString category;
privateString title;
privateString content;
publicString getCategory(){
return category;
}
publicvoid setCategory(String category){
this.category = category;
}
publicString getTitle(){
return title;
}
publicvoid setTitle(String title){
this.title = title;
}
publicString getContent(){
return content;
}
publicvoid setContent(String content){
this.content = content;
}

@Override
publicString execute()throwsException{
// System.out.println("category:"+category);
// System.out.println("title"+title);
// System.out.println("content"+content);
// String Date=new SimpleDateFormat("yyyy-MM-dd").format(new Date());
// String realPath = ServletActionContext.getRequest().getRealPath("/upload")+"/"+Date;
// System.out.println("路径"+realPath);

ActionContext cxt=ActionContext.getContext();
Map request=(Map)cxt.get("request");

request.put("category", category);
request.put("title", title);
request.put("content", content);
return SUCCESS;

}

}

struts.xml文件配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
<packagename="strus"extends="struts-default">

<actionname="publish"class="xiaoxiao.action.PublishAction">
<resultname="success">/show.jsp</result>


</action>

</package>

</struts>

show.jsp

<%@ page language="java"import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"
+ request.getServerName()+":"+ request.getServerPort()
+ path +"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>信息发布</title>

<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This is my page">

<styletype="text/css">
#showContent {
WIDTH:1000px;
BACKGROUND:#e4eefa;
FLOAT: left;
border:1px solid #FC9;
}

#showContent {

MARGIN-BOTTOM:-32767px!important
}
</style>
</head>

<body>
类别：${requestScope.category}<br>
标题：${requestScope.title}<br>

内容为：
<br/>
<divid="showContent">
${requestScope.content}
</div>
</body>
</html>

至此，运行项目，你就可以看见UEditor编辑器的强大功能。运行效果图：

点击提交按钮后：

注意事项：

（1）在index.jsp中需要写： <LINKrel=stylesheet href="ueditor/themes/default/css/ueditor.css"> 否则工具栏中的图标显示不出来。

（2）配置editor_config.js文件，由于这里我是把ueditor放到了UEditorCase目录下，因此配置为：URL = window.UEDITOR_HOME_URL||"/UEditorCase/ueditor/";

（3）按照上述步骤，不需要更改其他文件内容。

（二）编辑旧文章

editorUpdate.jsp代码：

<%@ page language="java"import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>My JSP ‘editorUpdate.jsp‘ starting page</title>

<metahttp-equiv="pragma"content="no-cache">
<metahttp-equiv="cache-control"content="no-cache">
<metahttp-equiv="expires"content="0">
<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
<metahttp-equiv="description"content="This is my page">

<scripttype="text/javascript"src="ueditor/editor_config.js"></script>
<scripttype="text/javascript"src="ueditor/editor_all.js"></script>
<LINKrel=stylesheethref="ueditor/themes/default/css/ueditor.css">
</head>

<body>
编辑文章：<br/>

<scripttype="text/plain"id="myEditor"name="content">
${requestScope.content}
</script>
<scripttype="text/javascript">

var editor =new UE.ui.Editor();
editor.render("myEditor");

//1.2.4以后可以使用一下代码实例化编辑器
//UE.getEditor(‘myEditor‘)
</script>
</body>
</html>

将struts.xml中

<resultname="success">/show.jsp</result>

注释掉，改为：

<resultname="success">/editorUpdate.jsp</result>

运行效果图：

（三）图片上传与附件上传

将jsp文件夹下的Uploader.java类拷贝到ueditor类包中

再将struts.xml改为：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
<packagename="strus"extends="struts-default">

<actionname="publish"class="xiaoxiao.action.PublishAction">
<resultname="success">/show.jsp</result></action>

</package>

</struts>

由于采用了struts框架，拦截器把（/*）所有请求的文件都做了处理，所以导致无法上传图片和附件。

解决方法，自定义拦截器，让它在请求imageUp.jsp和fileUp.jsp文件时不做处理。
步骤：

创建拦截器类：MyStrutsFilter.java

package xiaoxiao.filter;

import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter;

publicclassMyStrutsFilterextendsStrutsPrepareAndExecuteFilter{
publicvoid doFilter(ServletRequest req,ServletResponse res,FilterChain chain)throwsIOException,ServletException{
HttpServletRequest request =(HttpServletRequest) req;
String url = request.getRequestURI();
if("/UEditorCase/ueditor/jsp/imageUp.jsp".equals(url)||"/UEditorCase/ueditor/jsp/fileUp.jsp".equals(url)){
//System.out.println("使用自定义的过滤器");
chain.doFilter(req, res);
}else{
//System.out.println("使用默认的过滤器");
super.doFilter(req, res, chain);
}
}
}

配置拦截器：

<?xml version="1.0" encoding="UTF-8"?>
<web-appversion="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<filter>
<filter-name>struts2</filter-name>
<filter-class>xiaoxiao.filter.MyStrutsFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>