Java--office（word......）在线预览(openoffice+swfTools+FlexPaper)
2018-04-11 17:37
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Java--在线预览（SpringMVC实现）
前言：我废了两天的时间把他做出来的，因为在预览文件的时候，需要进行下载第三方插件，所以在安卓端查看的时候用户体验的效果不好，直接就给否定了，最终选择了另外一种方式。word转为html进行在线预览，果然，转为html的方式确实非常的简单，可能十分钟你就搞定了。word转为html大家可以进行查看： https://blog.csdn.net/mcb520wf/article/details/79899622
一.概述
主要原理1.通过第三方工具openoffice，将word、excel、ppt、txt等文件转换为pdf文件2.通过swfTools将pdf文件转换成swf格式的文件3.通过FlexPaper文档组件在页面上进行展示二.安装包下载
1.openoffice是Apache下的一个开放免费的文字处理软件 下载地址：Apache Open Office 4.x2.SWFTools是一组用来处理Flash的swf文件的工具包，我们使用它将pdf文件转成swf文件! 下载地址：SWFTools官网下载 swftools-2013-04-09-1007.exe3.FlexPaper是一个开源轻量级的在浏览器上显示各种文档的组件 下载地址：FlexPaper官网下载三.安装文件1.将所下载的文件（JODConverter除外）进行安装，盘符可随自己设定！需要注意的是在openoffice安装完成后，当我们使用它时，需将它的服务打开。在次我们需要以命令的方式打开:打开dos窗口，cdm命令：进入openoffice安装盘符：
C:\Program Files (x86)\OpenOffice 4\program（拷贝就行）
输入以下代码来启动服务：
soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard
注意：输入后没有任何反应，这样才能继续向下进行
四.开始开发
4.1 建立maven项目。首先要将js文件，以及FlexPaperViewer.swf拷贝到项目里面（非常重要）
上面的红色叉号不用担心，因为我的maven工程并没有引入jar包，下面是pom文件引入JAR包
<properties>
<!-- spring版本号 -->
<spring.version>4.1.0.RELEASE</spring.version>
<fileupload.version>1.2.1</fileupload.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.artofsolving</groupId>
<artifactId>jodconverter</artifactId>
<version>2.2.1</version>
</dependency>
<!-- servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-nop -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-nop</artifactId>
<version>1.6.0</version>
<scope>test</scope>
</dependency>
<!-- spring核心包 -->
<!-- springframe start -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- springframe end -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${fileupload.version}</version>
</dependency>
</dependencies>
4.2 SpringMVC配置文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema f967 /mvc/spring-mvc-4.0.xsd"> <!--自动扫描包--> <context:component-scan base-package="com.arthur.controller"></context:component-scan> <mvc:annotation-driven /> <!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name = "prefix" value="/WEB-INF/views/"></property> <property name = "suffix" value = ".jsp"></property> </bean> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="UTF-8"/> <!--50M--> <property name="maxUploadSize" value="52428800" /> <property name="maxInMemorySize" value="4096" /> </bean> <mvc:resources mapping="/js/**" location="/js/" /> <mvc:resources mapping="/upload/**" location="/upload/" /> <mvc:resources mapping="/*.swf" location="/" /> </beans>
4.3 web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <display-name>Archetype Created Web Application</display-name> <!-- Spring字符集过滤器 --> <filter> <filter-name>SpringEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>SpringEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
4.4 fileUpload.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>文档在线预览系统</title>
<style>
body {margin-top:100px;background:#fff;font-family: Verdana, Tahoma;}
a {color:#CE4614;}
#msg-box {color: #CE4614; font-size:0.9em;text-align:center;}
#msg-box .logo {border-bottom:5px solid #ECE5D9;margin-bottom:20px;padding-bottom:10px;}
#msg-box .title {font-size:1.4em;font-weight:bold;margin:0 0 30px 0;}
#msg-box .nav {margin-top:20px;}
</style>
</head>
<body>
<div id="msg-box">
<form name="form1" method="post" enctype="multipart/form-data" action="/convert">
<div class="title">
请上传要处理的文件，过程可能需要几分钟，请稍候片刻。
</div>
<p>
<input name="file" type="file">
</p>
<p>
<input type="submit" name="Submit" value="上传">
</p>
</form >
</div>
</body>
</html>4.5 documentView.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
String swfFilePath=session.getAttribute("swfpath").toString();
%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="/js/jquery.js"></script>
<script type="text/javascript" src="/js/flexpaper_flash.js"></script>
<script type="text/javascript" src="/js/flexpaper_flash_debug.js"></script>
<style type="text/css" media="screen">
html, body { height:100%; }
body { margin:0; padding:0; overflow:auto; }
#flashContent { display:none; }
</style>
<title>文档在线预览系统</title>
</head>
<body>
<div style="position:absolute;left:50px;top:10px;">
<a id="viewerPlaceHolder" style="width:1000px;height:700px;display:block"></a>
<script type="text/javascript">
var fp = new FlexPaperViewer(
'FlexPaperViewer',
'viewerPlaceHolder', { config : {
SwfFile : escape('<%=swfFilePath%>'),
Scale : 1.4,
ZoomTransition : 'easeOut',
ZoomTime : 0.5,
ZoomInterval : 0.2,
FitPageOnLoad : true,
FitWidthOnLoad : false,
FullScreenAsMaxWindow : false,
ProgressiveLoading : false,
MinZoomSize : 0.2,
MaxZoomSize : 5,
SearchMatchAll : false,
InitViewMode : 'SinglePage',
ViewModeToolsVisible : true,
ZoomToolsVisible : true,
NavToolsVisible : true,
CursorToolsVisible : true,
SearchToolsVisible : true,
localeChain: 'zh_CN'
}});
</script>
</div>
</body>
</html>4.6 DocConverter.java
package com.arthur.util;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;
/**
* doc docx格式转换
*/
public class DocConverter {
private static final int environment = 1;// 环境 1：windows 2:linux
private String fileString;// (只涉及pdf2swf路径问题)
private String outputPath = "";// 输入路径 ，如果不设置就输出在默认的位置
private String fileName;
private File pdfFile;
private File swfFile;
private File docFile;
private final String OPEN_OFFICE_HOST="127.0.0.1"; //open office运行的host
private final Integer OPEN_OFFICE_PORT=8100; //open office运行的端口号，默认8100
private final String SWFTOOLS_HOME="C:/Program Files (x86)/SWFTools/"; //swfTools的安装路径
public DocConverter(String fileString) {
ini(fileString);
}
/**
* 重新设置file
*
* @param fileString
*/
public void setFile(String fileString) {
ini(fileString);
}
/**
* 初始化
*
* @param fileString
*/
private void ini(String fileString) {
this.fileString = fileString;
fileName = fileString.substring(0, fileString.lastIndexOf("."));
docFile = new File(fileString);
pdfFile = new File(fileName + ".pdf");
swfFile = new File(fileName + ".swf");
}
/**
* 转为PDF
*
* @param file
*/
private void doc2pdf() throws Exception {
if (docFile.exists()) {
if (!pdfFile.exists()) {
OpenOfficeConnection connection = new SocketOpenOfficeConnection(OPEN_OFFICE_HOST,OPEN_OFFICE_PORT);
try {
connection.connect();
DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
converter.convert(docFile, pdfFile);
// close the connection
connection.disconnect();
System.out.println("****pdf转换成功，PDF输出：" + pdfFile.getPath()+ "****");
} catch (java.net.ConnectException e) {
e.printStackTrace();
System.out.println("****swf转换器异常，openoffice服务未启动！****");
throw e;
} catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) {
e.printStackTrace();
System.out.println("****swf转换器异常，读取转换文件失败****");
throw e;
} catch (Exception e) {
e.printStackTrace();
throw e;
}
} else {
System.out.println("****已经转换为pdf，不需要再进行转化****");
}
} else {
System.out.println("****swf转换器异常，需要转换的文档不存在，无法转换****");
}
}
/**
* 转换成 swf
*/
@SuppressWarnings("unused")
private void pdf2swf() throws Exception {
Runtime r = Runtime.getRuntime();
if (!swfFile.exists()) {
if (pdfFile.exists()) {
if (environment == 1) {// windows环境处理
try {
Process p = r.exec(SWFTOOLS_HOME+"pdf2swf.exe "+ pdfFile.getPath() + " -o "+ swfFile.getPath() + " -T 9");
System.out.print(loadStream(p.getInputStream()));
System.err.print(loadStream(p.getErrorStream()));
System.out.print(loadStream(p.getInputStream()));
System.err.println("****swf转换成功，文件输出："
+ swfFile.getPath() + "****");
if (pdfFile.exists()) {
pdfFile.delete();
}
} catch (IOException e) {
e.printStackTrace();
throw e;
}
} else if (environment == 2) {// linux环境处理
try {
Process p = r.exec("pdf2swf " + pdfFile.getPath()
+ " -o " + swfFile.getPath() + " -T 9");
System.out.print(loadStream(p.getInputStream()));
System.err.print(loadStream(p.getErrorStream()));
System.err.println("****swf转换成功，文件输出："
+ swfFile.getPath() + "****");
if (pdfFile.exists()) {
pdfFile.delete();
}
} catch (Exception e) {
e.printStackTrace();
throw e;
}
}
} else {
System.out.println("****pdf不存在,无法转换****");
}
} else {
System.out.println("****swf已经存在不需要转换****");
}
}
static String loadStream(InputStream in) throws IOException {
int ptr = 0;
in = new BufferedInputStream(in);
StringBuffer buffer = new StringBuffer();
while ((ptr = in.read()) != -1) {
buffer.append((char) ptr);
}
return buffer.toString();
}
/**
* 转换主方法
*/
@SuppressWarnings("unused")
public boolean conver() {
if (swfFile.exists()) {
System.out.println("****swf转换器开始工作，该文件已经转换为swf****");
return true;
}
if (environment == 1) {
System.out.println("****swf转换器开始工作，当前设置运行环境windows****");
} else {
System.out.println("****swf转换器开始工作，当前设置运行环境linux****");
}
try {
doc2pdf();
pdf2swf();
} catch (Exception e) {
e.printStackTrace();
return false;
}
if (swfFile.exists()) {
return true;
} else {
return false;
}
}
/**
* 返回文件路径
*
*/
public String getswfPath() {
if (swfFile.exists()) {
String tempString = swfFile.getPath();
tempString = tempString.replaceAll("\\\\", "/");
return tempString;
} else {
return "";
}
}
/**
* 设置输出路径
*/
public void setOutputPath(String outputPath) {
this.outputPath = outputPath;
if (!outputPath.equals("")) {
String realName = fileName.substring(fileName.lastIndexOf("/"),
fileName.lastIndexOf("."));
if (outputPath.charAt(outputPath.length()) == '/') {
swfFile = new File(outputPath + realName + ".swf");
} else {
swfFile = new File(outputPath + realName + ".swf");
}
}
}
}4.7 ViewController.java
package com.arthur.controller;
import com.arthur.util.DocConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
/**
* Created by Administrator on 2017/6/15.
*/
@Controller
public class ViewController {
@RequestMapping(value = "/upload",method = RequestMethod.GET)
public String showUploadPage(){
return "fileUpload";
}
@RequestMapping(value = "/viewer",method = RequestMethod.GET)
public String showViewer(){
return "documentView";
}
@RequestMapping(value = "/convert",method = RequestMethod.POST)
public String convert(HttpServletRequest request, HttpServletResponse response
, @RequestParam(value = "file") CommonsMultipartFile file) throws IOException{
/** 构建文件保存的目录* */
String saveDirectory =request.getSession().getServletContext().getRealPath("/")+"upload"+"/";
String filename = ""+System.currentTimeMillis();
String extname = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
String path = saveDirectory+filename+extname;
File newFile=new File(path);
file.transferTo(newFile);
DocConverter d = new DocConverter(path);
d.conver();
String swfpath = "upload"+d.getswfPath().substring(d.getswfPath().lastIndexOf("/"));
request.getSession().setAttribute("swfpath", swfpath);
return "redirect:/viewer";
}
}访问：http://localhost:8080/upload
参考博客文章：
参考博客：https://blog.csdn.net/arthurdev/article/details/73322677
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