doc,excel,ppt转存pdf并预览
需要jar包：
下載aspose-words-15.8.0-jdk16.jar包http://pan.baidu.com/s/1nvbJwnv
下載aspose-cells-8.5.2.jar包?http://pan.baidu.com/s/1kUBzsQ7
下載aspose.slides-15.9.0.jar包?http://pan.baidu.com/s/1jH3ZNbK
預覽插件：
https://github.com/mozilla/pdf.js
遇到問題：
1，上傳文件org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: com/aspose/words/License
解決：tomcat中bin目錄下catalina.sh文件中，增加?JAVA_OPTS="-Djava.awt.headless=true" ，加完重啟。
因為是一個項目調另一個項目，調用項目的aspose的jar包上傳有問題，重新上傳。
2，上傳文件內存溢出?14:19:11.569 [startQuertz_QuartzSchedulerThread] DEBUG o.quartz.core.QuartzSchedulerThread - batch acquisition of 0 triggers
14:19:14.159 [http-bio-8081-exec-2] DEBUG o.s.w.m.c.CommonsMultipartResolver - Cleaning up multipart file [file] with original filename [aaa.docx], stored at [/xebest/tomcat-manager/work/Catalina/localhost/xe-manager/upload_5f4a16cc_15c1a35c502__8000_00000000.tmp]
14:19:14.525 [http-bio-8081-exec-2] DEBUG o.s.s.w.c.SecurityContextPersistenceFilter - SecurityContextHolder now cleared, as request processing completed
Exception in thread "http-bio-8081-exec-2"?
Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "http-bio-8081-exec-2"
Exception in thread "http-bio-8081-exec-1"?
解決：
#export JAVA_OPTS="-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,address=1090,server=y,suspend=n -Djava.awt.headless=true"
JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:PermSize=64M -XX:MaxNewSize=512m -XX:MaxPermSize=256m -Djava.awt.headless=true"
3， http://ip:port/projectName/js/pdf/web/viewer.html?file=pdf/aaa.pdf 訪問不到解決：解除攔截
項目web.xml 文件添加
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.html</url-pattern>
? ?</servlet-mapping>
仍訪問不到 ? ?
解決：tomcat/conf/context.xml添加<Context allowLinking="true">
4，doc轉成的pdf文件亂碼（其他文件轉pdf不亂碼）
解決：
(1),代碼里設置轉換編碼格式;
(2)tomcat設置編碼格式;tomcat/conf/server.xml<Connector port="8010" protocol="AJP/1.3" redirectPort="8444" URIEncoding="UTF-8" />
(3)設置linux系統字體;
復制C:\Windows\fonts下字體到?/usr/share/Fonts。（此處為中文字體即可）
cd /usr/share/fonts/ #進入字體庫文件夾
mkdir fonttmp #創建自己使用的字體庫文件夾
chmod 755 /usr/share/fonts/windows/* ? ? #更改這些字體庫的權限
cd fonttmp #進行字體庫
cp *.ttc,cp *.ttf #copy windows下的字體文件 （ttc和ttf）或支持中文的字體文件（ttc和ttf）到此文件夾下
mkfontdir #生成字體查詢文件
mkfontscale #生成scale文件
fc-cache #掃描字體目錄并生成字體信息的緩存
代碼如下：
license.xml文件
<License>
? <Data>
? ? <Products>
? ? ? <Product>Aspose.Total for Java</Product>
? ? ? <Product>Aspose.Words for Java</Product>
? ? </Products>
? ? <EditionType>Enterprise</EditionType>
? ? <SubscriptionExpiry>20991231</SubscriptionExpiry>
? ? <LicenseExpiry>20991231</LicenseExpiry>
? ? <SerialNumber>8bfe198c-7f0c-4ef8-8ff0-acc3237bf0d7</SerialNumber>
? </Data>
? <Signature>sNLLKGMUdF0r8O1kKilWAGdgfs2BvJb/2Xp8p5iuDVfZXmhppo+d0Ran1P9TKdjV4ABwAgKXxJ3jcQTqE/2IRfqwnPf8itN8aFZlV3TJPYeD3yWE7IT55Gz6EijUpC7aKeoohTb4w2fpox58wWoF3SNp6sK6jDfiAUGEHYJ9pjU=</Signature>
</License>
DocToPdfUtil.java
package com.xebest.common.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import com.aspose.words.Document;
import com.aspose.words.License;
import com.aspose.words.SaveFormat;
public class DocToPdfUtil {
// word轉pdf
public static boolean getLicense() {
boolean result = false;
try {
InputStream is = DocToPdfUtil.class.getClassLoader().getResourceAsStream("license.xml"); // license.xml應放在..\WebRoot\WEB-INF\classes路徑下
License aposeLic = new License();
aposeLic.setLicense(is);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static void docToPdf(String fromUrl,String toUrl) {
if (!getLicense()) { // 驗證License 若不驗證則轉化出的pdf文檔會有水印產生
return;
}
try {
//long old = System.currentTimeMillis();
File file = new File(toUrl); // 新建一個空白pdf文檔
FileOutputStream os = new FileOutputStream(file);
Document doc = new Document(fromUrl); // Address是將要被轉化的word文檔
doc.save(os, SaveFormat.PDF);// 全面支持DOC, DOCX, OOXML, RTF HTML,
// OpenDocument, PDF, EPUB, XPS, SWF
// 相互轉換
os.flush();
os.close();
// long now = System.currentTimeMillis();
// System.out.println("共耗時：" + ((now - old) / 1000.0) + "秒"); // 轉化用時
} catch (Exception e) {
e.printStackTrace();
}
}
}
ExcelToPdf.java
package com.xebest.common.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import com.aspose.cells.License;
import com.aspose.cells.SaveFormat;
import com.aspose.cells.Workbook;
public class ExcelToPdf {
// excel轉pdf
public static boolean getLicense() {
boolean result = false;
try {
InputStream is = DocToPdfUtil.class.getClassLoader().getResourceAsStream("license.xml");?
License aposeLic = new License();
aposeLic.setLicense(is);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static void excelToPdf(String fromUrl,String toUrl) {
if (!getLicense()) { // 驗證License 若不驗證則轉化出的pdf文檔會有水印產生
return;
}
try {
File pdfFile = new File(toUrl);// 輸出路徑
Workbook wb = new Workbook(fromUrl);// 原始excel路徑
FileOutputStream fileOS = new FileOutputStream(pdfFile);
wb.save(fileOS, SaveFormat.PDF);
fileOS.flush();
fileOS.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
PptToPdf.java
package com.xebest.common.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import com.aspose.slides.License;
import com.aspose.slides.Presentation;
import com.aspose.slides.SaveFormat;
public class PptToPdf {
// ppt轉pdf
public static boolean getLicense() {
boolean result = false;
try {
InputStream is = DocToPdfUtil.class.getClassLoader().getResourceAsStream("license.xml");?
License aposeLic = new License();
aposeLic.setLicense(is);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static void pptToPdf(String fromUrl,String toUrl) {
if (!getLicense()) { // 驗證License 若不驗證則轉化出的pdf文檔會有水印產生
return;
}
try {
// long old = System.currentTimeMillis();
File file = new File(toUrl);// 輸出pdf路徑
Presentation pres = new Presentation(fromUrl);// 輸入pdf路徑
FileOutputStream fileOS = new FileOutputStream(file);
pres.save(fileOS, SaveFormat.Pdf);
fileOS.flush();
fileOS.close();
// long now = System.currentTimeMillis();
// System.out.println("共耗時：" + ((now - old) / 1000.0) + "秒\n\n" +
// "文件保存在:" + file.getPath()); //轉化過程耗時
} catch (Exception e) {
e.printStackTrace();
}
}
}
調用
@RequestMapping("uploadFile")
public void uploadFile(@RequestParam(value="file",required=false) MultipartFile file)throws IOException {
String filePath=file==null?null:file.getOriginalFilename();
String str = "nofile";
String showStr = "nofile";
JSONObject json=new JSONObject();
if (StringUtils.isNotBlank(filePath)) {
String fileSuffixName=filePath.substring(filePath.lastIndexOf(".")+1).toLowerCase();
if (StringUtils.isNotBlank(fileSuffixName)&&("jpg".equals(fileSuffixName)
|| "jpeg".equals(fileSuffixName)|| "png".equals(fileSuffixName)
|| "bmp".equals(fileSuffixName)|| "doc".equals(fileSuffixName)
|| "docx".equals(fileSuffixName)|| "xlsx".equals(fileSuffixName)
|| "xls".equals(fileSuffixName)|| "pdf".equals(fileSuffixName))) {
try {
str=doUpload(file);
showStr = str;
if("doc".equals(fileSuffixName) || "docx".equals(fileSuffixName)
||"xlsx".equals(fileSuffixName) || "xls".equals(fileSuffixName)
||"pdf".equals(fileSuffixName)){
if(!"pdf".equals(fileSuffixName)){
showStr = fileSuffixName + "pdf";
}
json.put("type", 1);
}else{
json.put("type", 2);
}
}catch (IOException e) {
log.info("上傳附件出錯BrokerageController+uploadFile：",e);
}
}
}
json.put("fileUrl", str);
json.put("showUrl", showStr);
sendAjaxResponseForHtml(response,json);
/*PrintWriter pw = null;
try {
response.setCharacterEncoding("UTF-8");
//response.setContentType("text/html");
response.setContentType("text/html;charset=utf-8");
pw=response.getWriter();//{"reUrl":["pic.xebest.com/product/245/400/29bca1a343fe495e835fce762ce09e7e.jpg"],"recode":0}
pw.print(str);
pw.print(JSONObject.toJSON(json));
} catch (IOException e) {
e.printStackTrace();
}finally{
pw.flush();
pw.close();
}*/
}
public String doUpload(MultipartFile file)throws IOException{
String returnStr = "nofile";
String filePath=file==null?null:file.getOriginalFilename();
String fromUrl = "nofile";
String targetPath = ImagesConfInit.getStringValue("files_path");
File targetURL = new File(targetPath);
if (!targetURL.exists())
targetURL.mkdirs();
if (StringUtils.isNotBlank(filePath)) {
String fileSuffixName=filePath.substring(filePath.lastIndexOf(".")+1);
if(StringUtils.isNotBlank(fileSuffixName)){
fromUrl = targetPath+filePath;
File newFile = new File(fromUrl);
try {
file.transferTo(newFile);
log.info("文件路徑----------------->"+targetPath+filePath);
returnStr = targetPath+filePath.substring(0,filePath.lastIndexOf(".")+1)+"pdf";
if(fileSuffixName.toLowerCase().equals("doc")
|| fileSuffixName.toLowerCase().equals("docx")){
DocToPdfUtil.docToPdf(fromUrl, returnStr);
returnStr = filePath.substring(0,filePath.lastIndexOf(".")+1)+"pdf";
}else if(fileSuffixName.toLowerCase().equals("xlsx")
|| fileSuffixName.toLowerCase().equals("xls")){
ExcelToPdf.excelToPdf(fromUrl, returnStr);
returnStr = filePath.substring(0,filePath.lastIndexOf(".")+1)+"pdf";
}else{
returnStr = filePath;
}
}catch (IOException e) {
log.info(fromUrl+"上傳附件出錯BrokerageController+uploadFile+doUpload：",e);
}
}
}
return returnStr;
}
@RequestMapping("showFile")
public void showFile(String fileUrl){
int type = 0;//1,pdf;2,圖片;0,失敗
JSONObject json=new JSONObject();
String showUrl ="nopic";
String fileSuffixName=fileUrl.substring(fileUrl.lastIndexOf(".")+1).toLowerCase();
if(StringUtils.isNotBlank(fileSuffixName)&&?
("doc".equals(fileSuffixName) || "docx".equals(fileSuffixName)
||"xlsx".equals(fileSuffixName) || "xls".equals(fileSuffixName)
||"pdf".equals(fileSuffixName))){
if(!"pdf".equals(fileSuffixName)){
showUrl = fileSuffixName + "pdf";
}else{
showUrl = fileUrl;
}
type = 1;
}else{
type = 2;
showUrl = fileUrl;
}
json.put("type", type);
json.put("showUrl", showUrl);
sendAjaxResponseForHtml(response,json);
}
參考文章：感謝各位大神文章的指點，原文鏈接如下
http://www.cnblogs.com/qiwu1314/p/6101400.html
http://www.cnblogs.com/qiwu1314/p/6121696.html
http://www.cnblogs.com/qiwu1314/p/6121649.html
http://blog.csdn.net/iphone4grf/article/details/46376935
http://blog.csdn.net/nantian321/article/details/51200180
http://blog.csdn.net/shanelooli/article/details/7212812
http://www.th7.cn/Program/java/201606/878222.shtml
總結
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