Nginx+Tomcat+FastDFS文件下载模块讲解
????? 本文主要以示例的方式讲解，如何简单快速的搭建一个nginx+tomcat结合FastDFS文件系统，进行文件下载的文章，Nginx可以直接配置FastDFS下载，由于在实战中用处不是很大，所以暂时不讲。
????? 1、首先下载nginx安装包，解压并运行。
????? 关于nginx的安装详看http://flychao88.iteye.com/blog/1963365一文。
??????关于nginx.conf文件的内容如下所示：
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#user nobody;worker_processes 2;#error_log logs/error.log;#error_log logs/error.log notice;#error_log logs/error.log info;#pid logs/nginx.pid;events { worker_connections 1024;}http { include mime.types; default_type application/octet-stream; sendfile on; #tcp_nopush on; access_log logs/access.log; keepalive_timeout 65;# gzip on; server { listen 80; server_name aa.bb.com; location / { proxy_connect_timeout 3; proxy_send_timeout 30; proxy_read_timeout 30; proxy_pass http://localhost; } } upstream localhost { server localhost:8080 weight=10; server localhost:8081 weight=10; } ?? 注：proxy_pass后面的url域名必须要和upstream后面的标识保持一致。
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??????? ?2、下载并配置二个tomcat，配置tomcat端口号为：8080和8081
???????? 3、下载并安装FastDFS。
?????????????? 具体请参见http://flychao88.iteye.com/blog/1725285
?????????4、配置spring文件如下：
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<bean id="configuration"/> <bean id="trackerGroup" ref="configuration"/> <property name="trackerServers"> <list value-type="java.lang.String"> <value>10.12.146.90:22122</value> </list> </property> </bean> <bean id="fastdfsHelper" ref="trackerGroup" /> </bean>
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??????????? 5、配置struts.xml?文件。<action name="oper_*" method="{1}"> <result name="success" type="velocity">/pages/upload.vm</result> <result name="downLoad" type="stream"> <param name="contentType">application/x-zip-compressed</param> <param name="contentDisposition">attachment;filename="${fileName}"</param> <param name="inputName">downLoadFile</param> </result></action>??????????? 6、开发Action类，代码如下：package com.jd.paysettle.action;import com.jd.common.struts.action.BaseAction;import com.jd.common.web.result.Result;import com.jd.fastdfs.FastdfsHelper;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import java.io.BufferedReader;import java.io.ByteArrayInputStream;import java.io.InputStream;import java.io.InputStreamReader;/** * User: root * Date: 13-10-28 * Time: 上午3:59 */public class FastDFSClientAction extends BaseAction { private static final long serialVersionUID = -5163525262758695901L; private static final Logger log = LoggerFactory.getLogger(RefundAuditAction.class); @Autowired private FastdfsHelper fastdfsHelper; private String fileUrl = ""; private InputStream downLoadFile; private String fileName; public String update() throws Exception { String[] uploadFile = fastdfsHelper.upload("group1","/root/FastDFS_v4.05.tar.gz"); fileUrl = uploadFile[1]; Result result = new Result(); result.addDefaultModel("fileUrl", fileUrl); toVm(result); return SUCCESS; } public String download() throws Exception { byte[] bytes = fastdfsHelper.download("group1",fileUrl); downLoadFile = new ByteArrayInputStream(bytes); fileName = "fastdfs"+System.currentTimeMillis()+".tar.tz"; return "downLoad"; } public InputStream getDownLoadFile() { return downLoadFile; } public void setDownLoadFile(InputStream downLoadFile) { this.downLoadFile = downLoadFile; } public String getFileName() { return fileName; } public void setFileName(String fileName) { this.fileName = fileName; } public String getFileUrl() { return fileUrl; } public void setFileUrl(String fileUrl) { this.fileUrl = fileUrl; }}??????????? 7、HTML页面内容如下：<body> <br><br>upload file is : <a href="/paysettle/oper_download.action?fileUrl=${fileUrl}">${fileUrl}</a></body>?? 8、结果如下：
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关于JAVA版的FastDFS客户端，本人已经封装完毕，如果有哪位朋友需要，可以单独找我。