还在用struts1？是的，在地球的没写地方，落后的生产方式还在运转(老项目).
从 继承org.apache.struts.action.Action， 继承org.apache.struts.action.ActionForm开始吧
2. 代码
2.1 html页面
<html> <head> <title>网页上传</title> </head> <body> <center> <h1>本地文件网页上传</h1> <hr> </center> <h1>文件信息列表</h1> <hr> <form method="post" enctype="multipart/form-data"> <table cellspacing="10" cellpadding="0"> <tr> <td>选择文件：</td> <td><input type="file" /></td> </tr> <tr> <td>标题：</td> <td><input type="text" /></td> </tr> <tr> <td colspan="2"> <input type="button" value="确认上传"/> </td> </tr> </table> </form> <script src="https://www.jb51.net/script/jquery.js"></script> <script src="https://www.jb51.net/script/jquery.form.js"></script> <script src="https://www.jb51.net/script/_fileUpload.js"></script> </body> </html>
2.2 _fileUpload.js
/** *_fileUpload.js * * */ window.onload = function() { $("#mysubmit").bind("click", function(){ $("#myform").ajaxSubmit({ url: "myUpload.do", type: "post", success: function(data){ console.log(11111111); console.log(data); }, error: function(responseError){ console.log(22222222222); console.log(responseError); } }); }); }
2.3 MyUploadAction.java(继承自Action)
package com.rocky.console.action; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.upload.FormFile; import com.rocky.console.form.MyUploadForm; import com.rocky.console.service.ResponseUtil; public class MyUploadAction extends Action { public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception{ MyUploadForm myUploadForm = (MyUploadForm) form; FormFile uploadFile = myUploadForm.getUploadFile(); String filetitle = myUploadForm.getFiletitle(); System.out.println("111111"+filetitle); int fileSize = uploadFile.getFileSize(); InputStream inputStream = uploadFile.getInputStream(); System.out.println("fileSize::::::::"+fileSize); String path = "x:"; String filename = path + File.separator + uploadFile.getFileName(); FileOutputStream fos = new FileOutputStream(filename); byte[] b = new byte[1024]; int len = -1; while((len = inputStream.read(b))!=-1){ fos.write(b, 0, len); } fos.close(); String result = "success"; ResponseUtil.write(response, result, null); return null; } }
2.4 MyUploadForm.java( 继承自ActionForm)
package com.rocky.console.form; import javax.servlet.http.HttpServletRequest; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; import org.apache.struts.upload.FormFile; public class MyUploadForm extends ActionForm { /** * */ private static final long serialVersionUID = 6650496540449458586L; private FormFile uploadFile = null; private String filetitle; public String getFiletitle() { return filetitle; } public void setFiletitle(String filetitle) { this.filetitle = filetitle; } public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) { return null; } public void reset(ActionMapping mapping, HttpServletRequest request) { } public FormFile getUploadFile() { return uploadFile; } public void setUploadFile(FormFile uploadFile) { this.uploadFile = uploadFile; } }
2.5 struts-config.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "struts-config_1_2.dtd"> <struts-config> <data-sources /> <form-beans> <form-bean type="com.rocky.console.form.MyUploadForm" /> </form-beans> <global-exceptions /> <global-forwards /> <action-mappings> <!-- rocky myupload --> <action path="/myUpload" attribute="myUploadForm" type="com.rocky.console.action.MyUploadAction" /> </action-mappings> <message-resources parameter="ApplicationResources" /> </struts-config>
2.6 说明
2.6.1 jquery.form.js 网上可以下载
使用var formData = new FormData(), 然后formData.append("myfile", document.getElementById("myfile").files[0]);form.append...
当form表单field较多时 写很多 append很麻烦， 显然 ajaxSubmit方便很多
2.6.2 前端过来的数据 通过 ActionForm 直接封装到其子类(MyActionForm)对象中 , 用FormFile接收file文件 用String等接收其他类型数据
当然都是根据HTML 标签的name属性一一对应 来注入的
2.6.3 ActionForm是怎么和自定义实现的bean(MyUploadForm) 对上的？
在struts-config.xml中form-bean设置自己的那个bean，通过<action path="/myUpload" attribute="myUploadForm"
来完成这种映射
以上这篇浅谈struts1 & jquery form 文件异步上传就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。
您可能感兴趣的文章: