铃木一彻演过什么:struts2实现文件上传

来源：百度文库编辑：九乡新闻网时间：2024/07/14 02:35:11

index.jsp 上传页面<%@page language="java" pageEncoding="GBK"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<%@taglib prefix="c" uri="http://java.sun.com/jstl/core_rt"%>

${requestScope.typeError}

成共上传页面success.jsp<%@ page language="java" pageEncoding="GBK"%>
<%@taglib prefix="s" uri="/struts-tags"%>

上传成功!

文件标题:

文件为：

" />

参看tomcat的web.xml中的mime:

gif

image/gif

   在src目录下创建struts.propertiesstruts.locale=zh_CN
struts.i18n.encoding=GBK
struts.multipart.parser=jakarta
struts.xml文件


   value="globalMessages" />


    image/pjpeg,image/bmp,image/jpg,image/png,image/gif,image/jpeg

   /upload
   /success.jsp
   /index.jsp

action方法package lee;import java.io.*;
import com.opensymphony.xwork2.ActionContext;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;public class UploadAction extends ActionSupport {
private String title;
private File upload;
private String uploadContentType;
private String uploadFileName;
private String allowTypes;
// 接受依赖注入的属性
private String savePath; // 接受依赖注入的方法
public void setSavePath(String value) {
  this.savePath = value;
} private String getSavePath() throws Exception {
  return ServletActionContext.getServletContext().getRealPath(savePath);
} public void setTitle(String title) {
  this.title = title;
} public void setUpload(File upload) {
  this.upload = upload;
} public void setUploadContentType(String uploadContentType) {
  this.uploadContentType = uploadContentType;
} public void setUploadFileName(String uploadFileName) {
  this.uploadFileName = uploadFileName;
} public String getTitle() {
  return (this.title);
} public File getUpload() {
  return (this.upload);
} public String getUploadContentType() {
  return (this.uploadContentType);
} public String getUploadFileName() {
  return (this.uploadFileName);
} @Override
public String execute() throws Exception {
  System.out.println("开始上传单个文件---");
  System.out.println(getSavePath());
  System.out.println("==========" + getUploadFileName());
  System.out.println("==========" + getUploadContentType());
  System.out.println("==========" + getUpload());
  // 判断是否允许上传
  String filterResult = filterType(this.getAllowTypes().split(","));
//  if (filterResult != null) {
//   ActionContext.getContext().put("typeError", "您要上传的文件类型不正确");
//   return filterResult;
//  }
  // 以服务器的文件保存地址和原文件名建立上传文件输出流
  FileOutputStream fos = new FileOutputStream(getSavePath() + "\\"
    + getUploadFileName());
  FileInputStream fis = new FileInputStream(getUpload());
  byte[] buffer = new byte[1024];
  int len = 0;
  while ((len = fis.read(buffer)) > 0) {
   fos.write(buffer, 0, len);
  }
  return SUCCESS;
} public String filterType(String[] types) {
  String fileType = this.getUploadContentType();
  for (String type : types) {
   if (type.equals(fileType)) {
    return null;
   }
  }
  return INPUT;
} public String getAllowTypes() {
  return allowTypes;
} public void setAllowTypes(String allowTypes) {
  this.allowTypes = allowTypes;
}
}
xml配置文件

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

struts2

org.apache.struts2.dispatcher.FilterDispatcher

struts2

struts-cleanup

org.apache.struts2.dispatcher.ActionContextCleanUp

struts-cleanup

index.jsp

程序可运行

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