<?xml version="1.0" encoding="GBK"?> <project name="struts" basedir="." default=""> <property name="dist" value="classes"/> <property name="src" value="src"/> <path id="classpath"> <fileset dir="lib"> <include name="*.jar"/> </fileset> <pathelement path="${dist}"/> </path> <target name="compile" description="Compile all source code"> <delete dir="${dist}"/> <mkdir dir="${dist}"/> <copy todir="${dist}"> <fileset dir="${src}"> <exclude name="**/*.java"/> </fileset> </copy> <javac destdir="classes" debug="true" includeantruntime="yes" deprecation="false" optimize="false" failonerror="true"> <src path="${src}"/> <classpath refid="classpath"/> </javac> </target> </project>
<?xml version="1.0" encoding="GBK"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <!-- 定义Struts 2的核心Filter --> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <!-- 让Struts 2的核心Filter拦截所有请求 --> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
<%-- 网站: <a href="http://www.crazyit.org">疯狂Java联盟</a> author yeeku.H.lee kongyeeku@163.com version 1.0 Copyright (C), 2001-2016, yeeku.H.Lee This program is protected by copyright laws. Program Name: Date: --%> <%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %> <%@taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>上传成功</title> </head> <body> 上传成功!<br/> 文件标题:<s:property value=" + title"/><br/> 文件为：<img src="<s:property value="'uploadFiles/' + uploadFileName"/>"/><br/> </body> </html>
<%-- 网站: <a href="http://www.crazyit.org">疯狂Java联盟</a> author yeeku.H.lee kongyeeku@163.com version 1.0 Copyright (C), 2001-2016, yeeku.H.Lee This program is protected by copyright laws. Program Name: Date: --%> <%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %> <%@taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>利用输入校验完成文件过滤</title> <s:head/> </head> <body> <s:fielderror/> <s:form action="upload" enctype="multipart/form-data"> <s:textfield name="title" label="文件标题"/> <s:file name="upload" label="选择文件"/> <s:submit value="上传"/> </s:form> </body> </html>
<?xml version="1.0" encoding="GBK"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <!-- 设置该应用使用的字符集 --> <constant name="struts.i18n.encoding" value="GBK"/> <package name="lee" extends="struts-default"> <!-- 配置处理文件上传的Action --> <action name="upload" class="org.crazyit.app.action.UploadAction"> <!-- 动态设置Action的属性值 --> <param name="savePath">/uploadFiles</param> <!-- 设置允许上传的文件类型 --> <param name="allowTypes">image/png,image/gif,image/jpeg</param> <result name="input">/WEB-INF/content/uploadForm.jsp</result> <!-- 配置Struts 2默认的视图页面 --> <result>/WEB-INF/content/succ.jsp</result> </action> <action name="*"> <result>/WEB-INF/content/{1}.jsp</result> </action> </package> </struts>
package org.crazyit.app.action; import com.opensymphony.xwork2.Action; import com.opensymphony.xwork2.ActionSupport; import org.apache.struts2.ServletActionContext; import java.io.File; import java.io.*; /** * Description: * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a> * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author Yeeku.H.Lee kongyeeku@163.com * @version 1.0 */ public class UploadAction extends ActionSupport { // 封装文件标题请求参数的属性 private String title; // 封装上传文件域的属性 private File upload; // 封装上传文件类型的属性 private String uploadContentType; // 封装上传文件名的属性 private String uploadFileName; // 直接在struts.xml文件中配置的属性 private String savePath; // 定义该Action允许上传的文件类型 private String allowTypes; // allowTypes的setter和getter方法 public String getAllowTypes() { return allowTypes; } public void setAllowTypes(String allowTypes) { this.allowTypes = allowTypes; } // 接受struts.xml文件配置值的方法 public void setSavePath(String value) { this.savePath = value; } // 获取上传文件的保存位置 private String getSavePath() throws Exception { return ServletActionContext.getServletContext() .getRealPath(savePath); } // title的setter和getter方法 public void setTitle(String title) { this.title = title; } public String getTitle() { return (this.title); } // upload的setter和getter方法 public void setUpload(File upload) { this.upload = upload; } public File getUpload() { return (this.upload); } // uploadContentType的setter和getter方法 public void setUploadContentType(String uploadContentType) { this.uploadContentType = uploadContentType; } public String getUploadContentType() { return (this.uploadContentType); } // uploadFileName的setter和getter方法 public void setUploadFileName(String uploadFileName) { this.uploadFileName = uploadFileName; } public String getUploadFileName() { return (this.uploadFileName); } @Override public String execute() throws Exception { // 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); } fos.close(); return SUCCESS; } /** * 过滤文件类型 * @param types 系统所有允许上传的文件类型 * @return 如果上传文件的文件类型允许上传，返回null * 否则返回error字符串 */ public String filterTypes(String[] types) { // 获取允许上传的所有文件类型 String fileType = getUploadContentType(); for (String type : types) { if (type.equals(fileType)) { return null; } } return ERROR; } // 执行输入校验 public void validate() { // 将允许上传文件类型的字符串以英文逗号（,） // 分解成字符串数组从而判断当前文件类型是否允许上传 String filterResult = filterTypes(getAllowTypes().split(",")); // 如果当前文件类型不允许上传 if (filterResult != null) { // 添加FieldError addFieldError("upload" , "您要上传的文件类型不正确！"); } } }
