写了个上传的小例子。
从jfinal官网下载jfinal-1.8_demo_for_jsp.zip
然后下载jfinal-1.8-lib.zip
按要求删掉该删除的，引入一些包，之后的项目结构：
DemoConfig.java中配置路由，只留下了根路径：
/** * 配置路由 */ public void configRoute(Routes me) { me.add("/", CommonController.class); //me.add("/blog", BlogController.class); }
CommonController.java :
package com.demo.common; import java.io.File; import java.io.IOException; import java.util.UUID; import com.jfinal.core.Controller; import com.jfinal.upload.UploadFile; /** * CommonController */ public class CommonController extends Controller { public void index() { render("/index.jsp"); } public void uploadFile(){ UploadFile uploadFile=this.getFile(); String fileName=uploadFile.getOriginalFileName(); File file=uploadFile.getFile(); FileService fs=new FileService(); File t=new File("S:\file\"+UUID.randomUUID().toString()); try { t.createNewFile(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } fs.fileChannelCopy(file, t); file.delete(); this.renderHtml("success,<a href="./">back</a>"); } }
index.jsp:
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xml:lang="zh-CN" xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8" /> </head> <body> <form action="uploadFile" enctype="multipart/form-data" method="post"> <input type="file" name="file"/> <input type="submit"/> </form> </body> </html>
FileService.java :
package com.demo.common; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.nio.channels.FileChannel; public class FileService { public void fileChannelCopy(File s, File t) { FileInputStream fi = null; FileOutputStream fo = null; FileChannel in = null; FileChannel out = null; try { fi = new FileInputStream(s); fo = new FileOutputStream(t); in = fi.getChannel();// 得到对应的文件通道 out = fo.getChannel();// 得到对应的文件通道 in.transferTo(0, in.size(), out);// 连接两个通道，并且从in通道读取，然后写入out通道 } catch (IOException e) { e.printStackTrace(); } finally { try { fi.close(); in.close(); fo.close(); out.close(); } catch (IOException e) { e.printStackTrace(); } } } }
没有太多需要说明的，参考着官方的文档就可以了。