action 与form - 学习日记

阿！终于写完了action ，看起来并没有什么新的东西可以拿来展览，呵呵您列代码如下

STRUTS ACTION

// Created by Xslt generator for Eclipse.

// XSL : not found (java.io.FileNotFoundException: (Bad file descriptor))

// Default XSL used : easystruts.jar$org.easystruts.xslgen.JavaClass.xsl

package com.phone.struts.action;

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 java.io.InputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.io.FileOutputStream;

import java.io.File;

import java.sql.*;

import javax.sql.*;

import com.phone.struts.form.FileloadForm;

import org.apache.struts.upload.FormFile;

import com.phone.struts.javabean.excelReadBean;

/**

* FileloadAction.java created by EasyStruts - XsltGen.

* http://easystruts.sf.net

* created on 11-21-2004

*

* XDoclet definition:

* @struts:action path="/fileload" name="fileloadForm" input="/form/fileload.jsp" validate="true"

* @struts:action-forward name="success.jsp" path="success.jsp"

* @struts:action-forward name="fail.jsp" path="fail.jsp"

*/

public class FileloadAction extends Action {

// --------------------------------------------------------- Instance Variables

private String fodler=null;

// --------------------------------------------------------- Methods

/**

* Method execute

* @param ActionMapping mapping

* @param ActionForm form

* @param HttpServletRequest request

* @param HttpServletResponse response

* @return ActionForward

* @throws Exception

*/

public ActionForward execute(

ActionMapping mapping,

ActionForm form,

HttpServletRequest request,

HttpServletResponse response)

throws Exception {

//Start from here

Connection conn = null;

      FileloadForm fileloadForm = (FileloadForm) form;

      String fname=fileloadForm.getFileName();

      if(!uploadFile( mapping, form, request,response))

      {

      System.out.println("upload file failed");

      return mapping.findForward("fail");

      }

      System.out.println("file upload successful");

      excelReadBean readBean=new excelReadBean();

      DataSource dataSource = (DataSource)servlet.getServletContext().getAttribute(

"org.apache.struts.action.DATA_SOURCE");

conn = dataSource.getConnection();

readBean.read("test",fodler + "/"+fname,conn);

return mapping.findForward("success");

}

/***

* this function is used to upload file

* @param mapping

* @param form

* @param request

* @param response

*/

public boolean uploadFile(ActionMapping mapping, ActionForm form,

   HttpServletRequest request,

   HttpServletResponse response)

{

FileloadForm hff = (FileloadForm) form;

if(fodler == null)

{

ActionForward test = (ActionForward)mapping.findForward("pathFile");

fodler = test.getPath();

}

if (fodler == null){

fodler =this.getServlet().getServletContext().getRealPath("/WEB-INF");

}

if (fodler != null){

fodler = fodler.replace('\\', '/').replace('/', File.separatorChar);

}

FormFile file = hff.getFile();

if (file == null ) {

System.out.println("error : file is null");

return false;

}

// Get the name and file size

String fname = file.getFileName();

String size = Integer.toString(file.getFileSize()) + " bytes";

try{

InputStream streamIn = file.getInputStream();

OutputStream streamOut=null;

streamOut = new FileOutputStream(fodler + "/"+fname);

int bytesRead = 0;

byte[] buffer = new byte[8192];

   while ((bytesRead = streamIn.read(buffer, 0, 8192)) != -1) {

streamOut.write(buffer, 0, bytesRead);

   }

streamOut.close();

streamIn.close();

}catch(IOException e)

{

System.out.println("IoException:"+e);

}

// Populate the form bean with the results for display in the View

hff.setFileName(fname);

hff.setFileSize(size);

// Clean up our toys when done playing

file.destroy();

    return true;

}

}

可以看到uploadFile（）方法用力完成，将客户端的文件上传到，服务器上，而在我们的，主程序里，我们完成了对他的调用，随后调用readBean.read("test",fodler + "/"+fname,conn);完成将xls文件读入数据库.呵呵，初步的轮廓就如此了，可惜要更实用，你必须靠率很多问题，而在此，我想，做个简单的例子，到不用兴师动众。

STRUTS FORM

// Created by Xslt generator for Eclipse.

// XSL : not found (java.io.FileNotFoundException: (Bad file descriptor))

// Default XSL used : easystruts.jar$org.easystruts.xslgen.JavaClass.xsl

package com.phone.struts.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;

import org.apache.struts.action.ActionError;

/**

* FileloadForm.java created by EasyStruts - XsltGen.

* http://easystruts.sf.net

* created on 11-21-2004

*

* XDoclet definition:

* @struts:form name="fileloadForm"

*/

public class FileloadForm extends ActionForm {

// --------------------------------------------------------- Instance Variables

/** fileName property */

private String fileName;

/** file property */

private FormFile file;

/** fileSize property */

private String fileSize;

private boolean isSave;

// --------------------------------------------------------- Methods

/**

* Method validate

* @param ActionMapping mapping

* @param HttpServletRequest request

* @return ActionErrors

*/

public ActionErrors validate(

ActionMapping mapping,

HttpServletRequest request) {

ActionErrors errors = new ActionErrors();

if (file == null ) {

errors.add("file", new ActionError("error.file"));

}

return errors;

}

/**

* Method reset

* @param ActionMapping mapping

* @param HttpServletRequest request

*/

public void reset(ActionMapping mapping, HttpServletRequest request) {

fileName = "";

file = null;

fileSize = "";

isSave=false;

}

/**

* Returns the fileName.

* @return String

*/

public String getFileName() {

return fileName;

}

/**

* Set the fileName.

* @param fileName The fileName to set

*/

public void setFileName(String fileName) {

this.fileName = fileName;

}

/**

* Returns the file.

* @return FormFile

*/

public FormFile getFile() {

return file;

}

/**

* Set the file.

* @param file The file to set

*/

public void setFile(FormFile file) {

this.file = file;

}

/**

* Returns the fileSize.

* @return String

*/

public String getFileSize() {

return fileSize;

}

/**

* Set the fileSize.

* @param fileSize The fileSize to set

*/

public void setFileSize(String fileSize) {

this.fileSize = fileSize;

}

/**

* @return

*/

public boolean isSave() {

return isSave;

}

/**

* @param b

*/

public void setSave(boolean b) {

isSave = b;

}

}

感觉的出来，注释竟然比程序还占空间，呵呵感谢xslt 为我们提供了自动转换的方法，呵呵虽然我还是懒得完成注释，

好久没有玩xsl了，会不会手生呢？

好了最后就是jsp页面了

<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>

<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>

<%@ page contentType="text/html; charset=GB2312" %>

<html:html>

<body bottommargin="15" topmargin="15" leftmargin="15" rightmargin="15" marginheight="15" marginwidth="15" bgcolor="white" >

<link rel="stylesheet" type="text/css" media="all" href="<%=request.getContextPath()%>/styles/style.css" />

<script type="text/javascript" src="<%=request.getContextPath()%>/scripts/selectbox.js"></script>

<script type="text/javascript" src="<%=request.getContextPath()%>/scripts/global.js"></script>

<title>文件上传：</title>

</head>

<body bottommargin="15" topmargin="15" leftmargin="15" rightmargin="15" marginheight="15" marginwidth="15" bgcolor="white">

<p>

</body>

</html:html>

呵呵，html标签为我们提供了简单方面的操作，可惜很多美化工作，还是得借助css，要知道，我总是很

愤恨它，因为它丑陋的各式，为什么就没fo支持呢？还得用，javascript，我总庆幸我不会写，script,

这样总是让我免予帮别人写页面，可惜也因此我不得不依赖别人，copy它们的js.

好像剩下的工作就剩下，调试了，如果你在看，对你确实如此，可是，我的考虑它的应用环境，呵呵，也学我根本

就不需要上传，假如，再本级工作！不管怎么说，STRUTS下的开发还是这么的快，真的，以前也会被杂乱的jsp,和

servlet搞得头昏脑胀，呵呵我想该睡个好觉去了！

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