简单的servlet下载
Posted 山神笔记
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了简单的servlet下载相关的知识,希望对你有一定的参考价值。
<servlet>
<servlet-name>servletTest</servlet-name>
<servlet-class>com.shangsheng.servlet.ServletTest</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>servletTest</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
下载:<a href="a.do?name=timg.jpg">timg.jpg</a>
//文件的名字
String name = request.getParameter("name");
System.out.println("name:"+name);
File file =new File("E:\\app\\"+name);
FileInputStream fileInputStream =new FileInputStream(file);
byte[] bytes =new byte[fileInputStream.available()];
fileInputStream.read(bytes);
response.setCharacterEncoding("utf-8");
String filename= URLEncoder.encode(file.getName(),"utf-8");
response.setHeader("Content-Disposition","attachment; filename="+name);
ServletOutputStream out =response.getOutputStream();
out.write(bytes);
out.flush();
out.close();
maven配置:
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.3</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
以上是关于简单的servlet下载的主要内容,如果未能解决你的问题,请参考以下文章