SpringBoot在線預覽PDF文件（引用pdf.js工具）

本項目Demo使用了PDF.js插件實現PDF在線閱讀功能PDF.js插件下載地址html

實測能用！java

一、建立SpringBoot項目,目錄結構以下：git

二、進行項目配置：github

pom.xml：web

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.han</groupId>
    <artifactId>online-read-pdf</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.10.RELEASE</version>
        <relativePath />
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
    </dependencies>
 
</project>

PDFApplication.javaspring

package com.han; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class PDFApplication { public static void main(String[] args) { SpringApplication.run(PDFApplication.class, args); } }

IndexController.javaapache

package com.han.controller; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; @Controller public class IndexController { @RequestMapping(value = "/preview", method = RequestMethod.GET) public void pdfStreamHandler(HttpServletRequest request, HttpServletResponse response) { //PDF文件地址
        File file = new File("E:\\pdf\\pdf\\GJB 8748-2015(GJB 6482-2008k).pdf"); if (file.exists()) { byte[] data = null; FileInputStream input=null; try { input= new FileInputStream(file); data = new byte[input.available()]; input.read(data); response.getOutputStream().write(data); } catch (Exception e) { System.out.println("pdf文件處理異常：" + e); }finally{ try { if(input!=null){ input.close(); } } catch (IOException e) { e.printStackTrace(); } } } } }

index.htmlapp

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>在線閱讀PDF文件</title>
</head>
<script>
    function onLineReadPDF() { window.open("/js/web/viewer.html?file=/preview"); } </script>
<body>
    <h1 onclick="onLineReadPDF()">在線閱讀PDF文件</h1>
</body>
</html>

運行結果效果圖：maven