• 吴裕雄--天生自然轻量级JAVA EE企业应用开发Struts2Sping4Hibernate整合开发学习笔记:struts2实现文件上传的Action


    <?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>简单的文件上传</title>
    </head>
    <body>
    <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>
                <!-- 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;
        // 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;
        }
    }
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  • 原文地址:https://www.cnblogs.com/tszr/p/12366767.html
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