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使用struts upload包进行文件上传的实例

作者：不详， 来源：网络， 阅读：147， 发布时间：2014-05-20

这里给出了自己写的一个使用struts upload包进行文件上传的例子。
测试环境再 Tomcat 5.0.12，servlet 2.3,jsp 1.2,structs 1.1通过。

1。FileLoadAction
//-----------------------------FileLoadAction code ---------------------------------------
package structs_file_test;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.Action;
import org.apache.struts.upload.*;
import java.util.Hashtable;
import java.util.Collection;
import java.util.Iterator;
import java.io.*;

public class FileLoadAction extends Action {
    private static final String FILE_SAVE_PATH="e:/";
    public ActionForward execute(ActionMapping actionMapping,
                                 ActionForm actionForm,
                                 HttpServletRequest servletRequest,
                                 HttpServletResponse servletResponse) {

        FileLoadActionForm theForm = (FileLoadActionForm) actionForm;
        //获得上传文件信息
        FormFile file1 = theForm.getFile1();
        FormFile file2 = theForm.getFile2();

        //设置文件保存的位置
        String sSaveFilePath= FILE_SAVE_PATH;// servletRequest.getServletPath();
        System.out.println("SaveFilePath=" + sSaveFilePath);

        // file1.getFileName()获得文件的名字，没有包含文件path 信息
        System.out.println("file1 ,filename=" + file1.getFileName());
        System.out.println("file2 ,filename=" + file2.getFileName());

        //可以把文件描述信息保存起来，保存到文件或者数据库
        //theForm.getFile1_desc();
        //theForm.getFile2_desc();

        InputStream in = null;
        try {
          in = file1.getInputStream();
          //saveToFile(in, "e:/1.txt");//for test
          saveToFile(in, sSaveFilePath + file1.getFileName());
        } catch (Exception ex) {
            System.err.println("error,save first file fail!");
        }
        try {
            in = file2.getInputStream();
            // saveToFile(in, "e:/2.txt");//for test
            saveToFile(in, sSaveFilePath + file2.getFileName());
        } catch (Exception ex) {
            System.err.println("error,save second file fail!");
        }
        return actionMapping.findForward("home");
    }
    private void saveToFile(InputStream in, String sFileName) {
        FileOutputStream out;
        //这里可以保存倒数据库或者磁盘
        try {
            out = new FileOutputStream(sFileName);
            byte b[] = new byte[1024];
            int i = 0;
            while ((i = in.read(b)) > 0) {
                out.write(b, 0, i - 1);
            }
            out.close();
        } catch (Exception ex) {
            System.err.println("save file=" + sFileName + " fail!" +
                               ex.getMessage());
        }
    }
}
//---------------------------------end FileLoadAction -----------------------------------------------
2.FileLoadActionForm
//---------------------FileLoadActionForm  code ----------------------------------
package structs_file_test;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.*;
import org.apache.struts.upload.FormFile;
/**
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author [email protected]
* @version 1.0
*/
public class FileLoadActionForm extends ActionForm {
    /**
     * 对应fileLoadjsp.jsp 的  <input align="left" type="file" name="file1" tabindex="0">
     * 注意类型是FormFile
     * */
    private FormFile file1;
    private String file1_desc;
    /**
     *对应fileLoadjsp.jsp 的  <input align="left" type="file" name="file2" tabindex="2">
     * 注意类型是FormFile
     * */
    private FormFile file2;
    private String file2_desc;
    public FormFile getFile1() {
        return file1;
    }
    public void setFile1(FormFile file1) {
        this.file1 = file1;
    }
    public void setFile2_desc(String file2_desc) {
        this.file2_desc = file2_desc;
    }
    public void setFile2(FormFile file2) {
        this.file2 = file2;
    }
    public void setFile1_desc(String file1_desc) {
        this.file1_desc = file1_desc;
    }
    public String getFile1_desc() {
        return file1_desc;
    }
    public FormFile getFile2() {
        return file2;
    }
    public String getFile2_desc() {
        return file2_desc;
    }
    public ActionErrors validate(ActionMapping actionMapping,
                                 HttpServletRequest httpServletRequest) {
            /** @todo: finish this method, this is just the skeleton.*/
        return null;
    }
    public void reset(ActionMapping actionMapping,
                      HttpServletRequest servletRequest) {
    }
}

//---------------------end  FileLoadActionForm  code ----------------------------------
3. struts-config.xml
//---------------------------------------------struts-config.xml --------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
  <form-beans>
    <form-bean name="fileLoadActionForm" type="structs_file_test.FileLoadActionForm" />
  </form-beans>
  <action-mappings>
    <action input="/fileLoadjsp.jsp" name="fileLoadActionForm" path="/fileLoadAction" scope="request" type="structs_file_test.FileLoadAction" validate="true">
      <forward contextRelative="true" name="home" path="/welcome.jsp" redirect="true" />
    </action>
  </action-mappings>
</struts-config>
//---------------------------------------------end  struts-config.xml --------------
4.web.xml
//------------------------------------- web.xml -----------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
  <display-name>WebModule1</display-name>
  <servlet>
    <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>application</param-name>
      <param-value>ApplicationResources</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
</web-app>
//-------------------------------------end web.xml -----------------------------------
5.fileLoadjsp.jsp
//---------------------------------------- fileLoadjsp.jsp --------------
<%@page contentType="text/html; charset=GB2312"%>
<html>
<head>
<title>fileLoadjsp</title>
</head>
<body bgcolor="#ffffff">
<h1>structs file load example</h1>
<form name="filelaod" action="/fileLoadAction.do" method="POST" enctype="multipart/form-data">
    <p>the first file  
      <input align="left" type="file" name="file1" tabindex="0">
      </p>
    <p><br>
      文件1的描述      
      <input align="left" type="text" name="file1_desc" tabindex="1">
      <br>
        </p>
    <p><br>
      the second file 
      <input align="left" type="file" name="file2" tabindex="2">
      </p>
    <p><br>
      文件2的描述      
      <input align="left" type="text" name="file2_desc" tabindex="3">
          </p>
    <p><br>
                   <input type="submit" name="ok" value="提  交">
        </p>
</form>
<br>
<br>
<a href="welcome.jsp" tabindex="4">goto home</a>
</body>
</html>
//----------------------------------------end   fileLoadjsp.jsp --------------
6.welcome.jsp
//------------------------------------------------------welcome.jsp ----------------------------
<%@ page contentType="text/html; charset=GB2312" %>
<html>
<head>
<title>
welcome
</title>
</head>
<body bgcolor="#ffffff">
<h1>
for test structs file load
</h1>
<a href="fileLoadjsp.jsp"> goto file load page </a>
</body>
</html>

标签：struts upload 文件上传

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