第10章国际化和文件上传【首页】杜老师

0. 创建项目

(1) 创建项目01JavaWeb10, 01学号 java EE 5.0, 复制apps\struts2-blank-2.3.16.3\WEB-INF\lib下9个包到WEB-INF\lib

(2) 从apps\struts2-blank-2.3.16\WEB-INF\web.xml中复制粘贴有关filter部分到WebRoot\WEB-INF\web.xml中

(3) 创建src\struts.xml

(4) 创建首页index.jsp

<%@ page language="java"  pageEncoding="gbk"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>第10章 国际化和文件上传</title>
  </head>
<body>
  <h1>第10章 国际化和文件上传【首页】杜老师</h1>
  <p>(IE中显示，工具-Internet选项-语言)</p>
  <hr />
  <span>1. Jsp页面国际化</span><br />
  <a href="WelcomeMessage01.jsp">1.1 欢迎信息(struts.xml中配置资源文件：大家好)</a><br />
  <a href="WelcomeMessage2_01.jsp">1.2 欢迎信息(struts.xml中不配置资源文件，jsp中临时指定资源文件：大家好)</a><br />
  <a href="WelcomeMessage3_01.jsp">1.3 欢迎信息(带参数，全局资源文件)</a><br />
  <a href="WelcomeMessage4_01.jsp">1.4 欢迎信息(带参数，临时资源文件)</a><br />
  <span>2. Action消息国际化</span><br />
  <a href="showActionMessage">2.1 Action消息(全局资源文件中定义)</a><br />
  <a href="showActionMessage2">2.2 Action消息(包资源文件中定义)</a><br />
  <a href="showActionMessage3">2.3 Action消息(Action资源文件中定义)</a><br />
  <a href="showActionMessage4">2.4 Action消息(无资源文件的定义)</a><br />
  <span>3. 语言选择</span><br />
  <a href="UserSelect01.jsp">3.1 语言选择</a><br />
  <a href="UserSelect2_01.jsp">3.2 语言选择2</a><br />
  <span>4. 文件上传</span><br />
  <a href="fileUploadPage01.jsp">4.1 单文件上传(基于struts文件上传)</a><br />
  <a href="fileUploadPage2_01.jsp">4.2 单文件上传(struts.xml中设置文件上传目录)</a><br />
  <a href="fileUploadPage2_01_.jsp">4.3 单个文件上传(struts.xml中限制上传文件大小和类型：bmp,jpg,png)</a><br />
  <a href="SomeFileUploadPage01.jsp">4.4 3个文件上传(允许上传txt,doc,jpg类型文件)</a><br />
  <a href="SomeFileUploadPage01_.jsp">4.5 任意多文件上传(允许上传txt,doc,jpg类型文件)</a><br />
  <span>5. 上机题</span><br />
  <a href="login01.jsp">5.1 登录表单页面国际化(jsp页面国际化)</a><br />
  <a href="login2_01.jsp">5.2 登录表单页面国际化(可选择语言)</a><br />
  <a href="login2_01.jsp">5.3 登录表单页面国际化(录入校验)</a><br />
  <a href="fileUploadPage3_01.jsp">5.4 单文件上传(存在同名文件阻止上传)</a><br />
  <a href="fileUploadPage4_01.jsp">5.5 单文件上传(存在同名、同大小文件阻止上传)</a><br />
  <a href="upload01.jsp">5.6 单文件上传(带用户名)</a><br />
  <a href="SomeFileUploadPage2_01.jsp">5.7 多文件上传(不能上传零个文件)</a><br />
  <a href="SomeFileUploadPage2_01_.jsp">5.8 多文件上传(带删除按钮)</a><br />

<hr />
  <a href="/html/01JavaWeb.html">返回章节目录</a><br />
</body>
</html>

1. Jsp页面国际化

1.1 加载全局资源文件完成国际化

(1) 创建全局资源文件

创建全局资源文件(操作)
(a) struts.xml中加：
		<constant name="struts.custom.i18n.resources" value="Du_Resource" />
(b) src创建中文资源文件：Du_Resource_zh_CN.properties，内容：
		welcomeMessage=\u5927\u5BB6\u597D\uFF01
		 src建英文资源文件：Du_Resource_en_US.properties，内容：
		welcomeMessage=Hello, everyone!
知识点
(a) 资源文件
	文件目录：src
	文件名：全局资源文件名前缀_语言_区域.properties，如：
		全局资源文件名前缀：Du_Resource
	内容：关键字=使用[语言_区域]语言的提示
	需要: struts.xml中定义<constant name="struts.custom.i18n.resources" value="全局资源文件名前缀" />
(b) .jsp文件中：
		<s:text name="welcomeMessage">
(c) 语言_区域
	zh 中文 
		zh_CN 中文 (中国) 
		zh_HK 中文 (香港) 
		zh_TW 中文 (台湾) 
		zh_SG 中文 (新加坡)
		zh_MO 中文 (澳门)
	en 英文 
		en_US 英文 (美国) 
		en_GB 英文 (英国) 
		en_AU 英文 (澳大利亚) 
		en_CA 英文 (加拿大) 
		en_IE 英文 (爱尔兰) 
		en_NZ 英文 (新西兰) 
		en_ZA 英文 (南非) 
		en_in 英文 (印度) 
		en_my 英文 (马来西亚) 
		en_ph 英文 (菲律宾) 
		en_sg 英文 (新加坡) 
	de 德文 
		de_AT 德文 (奥地利) 
		de_CH 德文 (瑞士) 
		de_DE 德文 (德国) 
		de_LU 德文 (卢森堡) 
	fr 法文 
		fr_BE 法文 (比利时) 
		fr_CA 法文 (加拿大) 
		fr_CH 法文 (瑞士) 
		fr_FR 法文 (法国) 
		fr_LU 法文 (卢森堡)
	ja 日文 
		ja_JP 日文 (日本)
	ko 朝鲜文
		ko_KR 朝鲜文 (南朝鲜)
	ru 俄文
		ru_RU 俄文 (俄罗斯)
	th 泰文
		th_TH 泰文 (泰国)
	ar 阿拉伯文
	es 西班牙文

(2) 创建页面文件WebRoot\WelcomeMessage01.jsp并运行项目进行测试

1.2 临时指定资源文件完成国际化

(1) 创建临时资源文件

(2) 创建页面文件WebRoot\WelcomeMessage2_01.jsp并运行项目进行测试

1.3 为资源文件传递参数

(1) 追加资源信息

(2) 创建页面文件WebRoot\WelcomeMessage3_01.jsp(带参数、全局资源文件), 并运行项目进行测试

(3) 创建页面文件WebRoot\WelcomeMessage4_01.jsp(带参数、临时资源文件), 并运行项目进行测试

1.4 资源信息查找顺序

2. Action国际化

2.1 加载全局资源文件完成国际化

(1) 追加资源信息

(2) src创建cn.duzhaojiang.action包，并创建[ShowActionMessage01.java]

(3) 创建页面文件WebRoot\ShowActionMessage01.jsp

(4) 配置src\struts.xml，修改首页index.jsp部署执行测试

2.2 加载包范围资源文件完成国际化

(1) 创建资源文件，在cn.duzhaojiang.action下创建package_zh_CN.properties、package_en_US.properties

(2) 在cn.duzhaojiang.action包建[ShowActionMessage2_01.java]

(3) 创建页面文件WebRoot\ShowActionMessage2_01.jsp

(4) 配置src\struts.xml，修改首页index.jsp部署执行测试

2.3 加载Action范围资源文件完成国际化

(1) 在cn.duzhaojiang.action包，资源文件ShowActionMessage3_01_zh_CN.properties, ShowActionMessage3_01_en_US.properties

(2) 在cn.duzhaojiang.action包创建[ShowActionMessage3_01.java]

(3) 创建页面文件WebRoot\ShowActionMessage3_01.jsp

(4) 配置src\struts.xml，修改首页index.jsp部署执行测试

2.4 无资源信息

(1) 在cn.duzhaojiang.action包创建[ShowActionMessage4_01.java]

(2) 创建页面文件WebRoot\ShowActionMessage4_01.jsp

(3) 配置src\struts.xml，修改首页index.jsp部署执行测试

2.5 资源信息查找顺序

实训1. 实现用户自行选择语言环境

(1) 追加资源信息

(2) 在cn.duzhaojiang.action包创建[SelectAction01.java]

(3) 创建页面文件WebRoot\UserSelect01.jsp

创建页面文件WebRoot\UserSelect2_01.jsp

<%@ page language="java" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head><title><s:text name="page.title"/></title>
	<script language="javascript">
		function selectsubmit(){	
			document.form1.submit();//提交表单
		}
	</script>
</head>
<body>
	<form action="select2.action" method="post" name="form1">
		<select name="languageSelect" onchange="selectsubmit();">
			<option value="choose">
				<s:text name="form.choose"></s:text>
			</option>
			<option value="en_US"
			<s:if test="#parameters.languageSelect[0] == 'en_US'">
				selected="selected"
			</s:if>>
				<s:text name="form.option1"></s:text>
			</option>
			<option value="zh_CN"
			<s:if test="#parameters.languageSelect[0] == 'zh_CN'">
				selected="selected"
			</s:if>>
				<s:text name="form.option2"></s:text>
			</option>
			<option value="zh_TW"
			<s:if test="#parameters.languageSelect[0] == 'zh_TW'">
				selected="selected"
			</s:if>>
				<s:text name="form.option3"></s:text>
			</option>
		</select>
	</form>
	<s:text name="page.message"></s:text>
</body>
</html>

(4) 配置src\struts.xml，修改首页index.jsp部署执行测试

3. 基于Struts2完成文件上传

3.1 Common-FileUpload框架

知识点：struts文件上传需commons-fileupload和commons-io两个包

3.2 配置上传解析器

知识点：struts文件上传解析器的配置将下列文件见61-66行
struts默认属性文件：struts-2.3.16.3\src\core\src\main\resources\org\apache\struts2\default.properties,

#
# $Id$
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#  http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#
### START SNIPPET: complete_file

### Struts default properties
###(can be overridden by a struts.properties file in the root of the classpath)
###

### This can be used to set your default locale and encoding scheme
# struts.locale=en_US
struts.i18n.encoding=UTF-8

### if specified, the default object factory can be overridden here
### Note: short-hand notation is supported in some cases, such as "spring"
###       Alternatively, you can provide a com.opensymphony.xwork2.ObjectFactory subclass name here
# struts.objectFactory = spring

### specifies the autoWiring logic when using the SpringObjectFactory.
### valid values are: name, type, auto, and constructor (name is the default)
struts.objectFactory.spring.autoWire = name

### indicates to the struts-spring integration if Class instances should be cached
### this should, until a future Spring release makes it possible, be left as true
### unless you know exactly what you are doing!
### valid values are: true, false (true is the default)
struts.objectFactory.spring.useClassCache = true

### ensures the autowire strategy is always respected.
### valid values are: true, false (false is the default)
struts.objectFactory.spring.autoWire.alwaysRespect = false

### if specified, the default object type determiner can be overridden here
### Note: short-hand notation is supported in some cases, such as "tiger" or "notiger"
###       Alternatively, you can provide a com.opensymphony.xwork2.util.ObjectTypeDeterminer implementation name here
### Note: By default, com.opensymphony.xwork2.util.DefaultObjectTypeDeterminer is used which handles type detection
###       using generics. com.opensymphony.xwork2.util.GenericsObjectTypeDeterminer was deprecated since XWork 2, it's
###       functions are integrated in DefaultObjectTypeDeterminer now.
###       To disable tiger support use the "notiger" property value here.
#struts.objectTypeDeterminer = tiger
#struts.objectTypeDeterminer = notiger

### Parser to handle HTTP POST requests, encoded using the MIME-type multipart/form-data
# struts.multipart.parser=cos
# struts.multipart.parser=pell
struts.multipart.parser=jakarta
# uses javax.servlet.context.tempdir by default
struts.multipart.saveDir=
struts.multipart.maxSize=2097152

### Load custom property files (does not override struts.properties!)
# struts.custom.properties=application,org/apache/struts2/extension/custom

### How request URLs are mapped to and from actions
#struts.mapper.class=org.apache.struts2.dispatcher.mapper.DefaultActionMapper

### Used by the DefaultActionMapper
### You may provide a comma separated list, e.g. struts.action.extension=action,jnlp,do
### The blank extension allows you to match directory listings as well as pure action names
### without interfering with static resources, which can be specified as an empty string
### prior to a comma e.g. struts.action.extension=, or struts.action.extension=x,y,z,,
struts.action.extension=action,,

### Used by FilterDispatcher
### If true then Struts serves static content from inside its jar.
### If false then the static content must be available at <context_path>/struts
struts.serve.static=true

### Used by FilterDispatcher
### This is good for development where one wants changes to the static content be
### fetch on each request.
### NOTE: This will only have effect if struts.serve.static=true
### If true -> Struts will write out header for static contents such that they will
###             be cached by web browsers (using Date, Cache-Content, Pragma, Expires)
###             headers).
### If false -> Struts will write out header for static contents such that they are
###            NOT to be cached by web browser (using Cache-Content, Pragma, Expires
###            headers)
struts.serve.static.browserCache=true

### Set this to false if you wish to disable implicit dynamic method invocation
### via the URL request. This includes URLs like foo!bar.action, as well as params
### like method:bar (but not action:foo).
### An alternative to implicit dynamic method invocation is to use wildcard
### mappings, such as <action name="*/*" method="{2}" class="actions.{1}">
struts.enable.DynamicMethodInvocation = false

### Set this to true if you wish to allow slashes in your action names.  If false,
### Actions names cannot have slashes, and will be accessible via any directory
### prefix.  This is the traditional behavior expected of WebWork applications.
### Setting to true is useful when you want to use wildcards and store values
### in the URL, to be extracted by wildcard patterns, such as
### <action name="*/*" method="{2}" class="actions.{1}"> to match "/foo/edit" or
### "/foo/save".
struts.enable.SlashesInActionNames = false

### Disables support for action: prefix
struts.mapper.action.prefix.enabled = false

### Blocks access to actions in other namespace than current with action: prefix
struts.mapper.action.prefix.crossNamespaces = false

### use alternative syntax that requires %{} in most places
### to evaluate expressions for String attributes for tags
struts.tag.altSyntax=true

### when set to true, Struts will act much more friendly for developers. This
### includes:
### - struts.i18n.reload = true
### - struts.configuration.xml.reload = true
### - raising various debug or ignorable problems to errors
###   For example: normally a request to foo.action?someUnknownField=true should
###                be ignored (given that any value can come from the web and it
###                should not be trusted). However, during development, it may be
###                useful to know when these errors are happening and be told of
###                them right away.
struts.devMode = false

### when set to true, resource bundles will be reloaded on _every_ request.
### this is good during development, but should never be used in production
struts.i18n.reload=false

### Standard UI theme
### Change this to reflect which path should be used for JSP control tag templates by default
struts.ui.theme=xhtml
struts.ui.templateDir=template
### Change this to use a different token to indicate template theme expansion
struts.ui.theme.expansion.token=~~~
#sets the default template type. Either ftl, vm, or jsp
struts.ui.templateSuffix=ftl

### Configuration reloading
### This will cause the configuration to reload struts.xml when it is changed
struts.configuration.xml.reload=false

### Location of velocity.properties file.  defaults to velocity.properties
struts.velocity.configfile = velocity.properties

### Comma separated list of VelocityContext classnames to chain to the StrutsVelocityContext
struts.velocity.contexts =

### Location of the velocity toolbox
struts.velocity.toolboxlocation=

### used to build URLs, such as the UrlTag
struts.url.http.port = 80
struts.url.https.port = 443
### possible values are: none, get or all
struts.url.includeParams = none

### Load custom default resource bundles
# struts.custom.i18n.resources=testmessages,testmessages2

### workaround for some app servers that don't handle HttpServletRequest.getParameterMap()
### often used for WebLogic, Orion, and OC4J
struts.dispatcher.parametersWorkaround = false

### configure the Freemarker Manager class to be used
### Allows user to plug-in customised Freemarker Manager if necessary
### MUST extends off org.apache.struts2.views.freemarker.FreemarkerManager
#struts.freemarker.manager.classname=org.apache.struts2.views.freemarker.FreemarkerManager

### Enables caching of FreeMarker templates
### Has the same effect as copying the templates under WEB_APP/templates
struts.freemarker.templatesCache=false

### Enables caching of models on the BeanWrapper
struts.freemarker.beanwrapperCache=false

### See the StrutsBeanWrapper javadocs for more information
struts.freemarker.wrapper.altMap=true

### maxStrongSize for MruCacheStorage for freemarker, when set to 0 SoftCacheStorage which performs better in heavy loaded application
### check WW-3766 for more details
struts.freemarker.mru.max.strong.size=0

### configure the XSLTResult class to use stylesheet caching.
### Set to true for developers and false for production.
struts.xslt.nocache=false

### Whether to always select the namespace to be everything before the last slash or not
struts.mapper.alwaysSelectFullNamespace=false

### Whether to allow static method access in OGNL expressions or not
struts.ognl.allowStaticMethodAccess=false

### Whether to throw a RuntimeException when a property is not found
### in an expression, or when the expression evaluation fails
struts.el.throwExceptionOnFailure=false

### Logs as Warnings properties that are not found (very verbose)
struts.ognl.logMissingProperties=false

### Caches parsed OGNL expressions, but can lead to memory leaks
### if the application generates a lot of different expressions
struts.ognl.enableExpressionCache=true

### Indicates if Dispatcher should handle unexpected exceptions by calling sendError()
### or simply rethrow it as a ServletException to allow future processing by other frameworks like Spring Security
struts.handle.exception=true
### END SNIPPET: complete_file

3.3 创建文件上传控制器

步骤1. 在cn.duzhaojiang.action包创建FileUploadAction01.java，其中：
  File [文件名]; // 用来封装上传的文件
  String [文件名]ContentType;// 用来封装上传文件的类型
  String [文件名]FileName; // 用来封装上传文件的文件名
  [文件名]和jsp中<input type="file" name="名称值">name值一致

package cn.duzhaojiang.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class FileUploadAction01 extends ActionSupport {
	private File uploadFile; // 用来封装上传的文件
	private String uploadFileContentType;// 用来封装上传文件的类型
	private String uploadFileFileName; // 用来封装上传文件的文件名

public File getUploadFile() {// 获得上传文件
		return uploadFile;
	}
	public void setUploadFile(File uploadFile) {// 设置上传文件
		this.uploadFile = uploadFile;
	}
	public String getUploadFileContentType() {// 获得上传文件类型
		return uploadFileContentType;
	}
	public void setUploadFileContentType(String uploadFileContentType) {
		this.uploadFileContentType = uploadFileContentType;// 设置上传文件类型
	}
	public String getUploadFileFileName() {// 获得上传文件名
		return uploadFileFileName;
	}
	public void setUploadFileFileName(String uploadFileFileName) {
		this.uploadFileFileName = uploadFileFileName;// 设置上传文件名
	}

public String execute() throws Exception {
		InputStream is = new FileInputStream(uploadFile);// 文件输入流
		String uploadPath = ServletActionContext.getServletContext()
				.getRealPath("/upload");// 设置上传文件目录
		File toFile = new File(uploadPath, this.getUploadFileFileName());// 设置目标文件
		OutputStream os = new FileOutputStream(toFile);// 创建一个输出流
		byte[] buffer = new byte[1024];// 设置缓存
		int length = 0;
		while ((length = is.read(buffer)) > 0) {// 读取myFile文件输出到toFile文件中
			os.write(buffer, 0, length);
		}
		is.close();// 关闭输入流
		os.close();// 关闭输出流
		return SUCCESS;
	}
}

3.4 创建文件上传页面文件

步骤2. 创建上传文件目录WebRoot\upload, 创建页面文件WebRoot\fileUploadPage01.jsp
10行 action="fileUpload" method="post" enctype="multipart/form-data"
11行 input type="file" name="uploadFile" name值和上述java文件的File uploadFile变量名一致

步骤3. 创建页面文件WebRoot\fileUploadResultPage01.jsp

步骤4. 配置src\struts.xml，部署执行首页index.jsp测试

4. 文件上传高级配置

4.1 struts.xml中设置文件上传目录

(1) 在cn.duzhaojiang.action包创建FileUploadAction2_01.java

package cn.duzhaojiang.action;

public class FileUploadAction2_01 extends ActionSupport {
	private File uploadFile;		//用来封装上传的文件
	private String uploadFileContentType;//用来封装上传文件的类型
	private String uploadFileFileName;	//用来封装上传文件的文件名
	private String savePath;	//文件上传目录
	
	public File getUploadFile() {
		return uploadFile;
	}
	public void setUploadFile(File uploadFile) {
		this.uploadFile = uploadFile;
	}
	public String getUploadFileContentType() {
		return uploadFileContentType;
	}
	public void setUploadFileContentType(String uploadFileContentType) {
		this.uploadFileContentType = uploadFileContentType;
	}
	public String getUploadFileFileName() {
		return uploadFileFileName;
	}
	public void setUploadFileFileName(String uploadFileFileName) {
		this.uploadFileFileName = uploadFileFileName;
	}
	public String getSavePath() {
		return savePath;
	}
	public void setSavePath(String savePath) {
		this.savePath = savePath;
	}
	
	public String execute() throws Exception {
		InputStream is = new FileInputStream(uploadFile);//文件输入流
		String uploadPath = ServletActionContext.getServletContext()
				.getRealPath(savePath);// 设置上传文件目录
		File toFile = new File(uploadPath, this.getUploadFileFileName());// 设置目标文件
		OutputStream os = new FileOutputStream(toFile);// 创建一个输出流
		byte[] buffer = new byte[1024];//设置缓存
		int length = 0;
		while ((length = is.read(buffer)) > 0) {//读取myFile文件输出到toFile文件中
			os.write(buffer, 0, length);
		}
		is.close();//关闭输入流
		os.close();//关闭输出流
		return SUCCESS;
	}
}

(2) 创建页面文件WebRoot\fileUploadPage2_01.jsp

(3) 配置src\struts.xml，部署执行首页index.jsp测试

4.2 限制上传文件大小和类型

(1) 创建页面文件WebRoot\fileUploadPage2_01_.jsp

(2) 配置src\struts.xml，部署执行首页index.jsp测试

4.3 自定义上传错误提示信息

追加资源信息，执行首页index.jsp测试

实训2. 多文件上传

3个文件上传

(1) 在cn.duzhaojiang.action包创建SomeFileUploadAction01.java

package cn.duzhaojiang.action;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class SomeFileUploadAction01 extends ActionSupport {
	private File[] uploadFiles;				//用来封装所有上传的文件
	private String[] uploadFilesContentType;//用来封装所有上传文件的类型
	private String[] uploadFilesFileName;	//用来封装所有上传文件的文件名
	private String savePath;				//上传文件目录
	
	public File[] getUploadFiles() {//获得所有上传的文件
		return uploadFiles;
	}
	public void setUploadFiles(File[] uploadFiles) {//设置所有上传的文件
		this.uploadFiles = uploadFiles;
	}
	public String[] getUploadFilesContentType() {//获得所有上传文件的类型
		return uploadFilesContentType;
	}
	public void setUploadFilesContentType(String[] uploadFilesContentType) {//设置所有上传文件的类型
		this.uploadFilesContentType = uploadFilesContentType;
	}
	public String[] getUploadFilesFileName() {//获得所有上传文件的文件名
		return uploadFilesFileName;
	}
	public void setUploadFilesFileName(String[] uploadFilesFileName) {//获得所有上传文件的文件名
		this.uploadFilesFileName = uploadFilesFileName;
	}
	public String getSavePath() {//获得上传文件目录
		return savePath;
	}
	public void setSavePath(String savePath) {//设置上传文件目录
		this.savePath = savePath;
	}
	
	public String execute() throws Exception {
		File[] files = getUploadFiles();			//取得文件数组
		for (int i = 0; i < files.length; i++) {	//循环每个上传的文件
			InputStream is = new FileInputStream(files[i]);//基于file[i]创建一个文件输入流
			String uploadPath = ServletActionContext.getServletContext()
					.getRealPath(getSavePath());//获得上传文件目录实际路径
			File toFile = new File(uploadPath, getUploadFilesFileName()[i]);//设置目标文件
			OutputStream os = new FileOutputStream(toFile);//构建输出流
			byte[] buffer = new byte[1024];//设置缓存
			int length = 0;
			while ((length = is.read(buffer)) > 0) {//读取file[i]文件输出到toFile文件中
				os.write(buffer, 0, length);
			}
			is.close();//关闭输入流
			os.close();//关闭输出流
		}
		return SUCCESS;
	}
}

(2) 创建页面文件WebRoot\SomeFileUploadPage01.jsp

(3) 创建页面文件WebRoot\SomeFileUploadResultPage01.jsp

(4) 配置src\struts.xml，部署执行首页index.jsp测试

任意多文件上传

(1) 创建页面文件WebRoot\SomeFileUploadPage01_.jsp

(2) 配置src\struts.xml，部署执行首页index.jsp测试

5. 上机题

上机题1 登录表单页面国际化

(1) 追加全局资源信息

(2) 创建页面文件WebRoot\login01.jsp, 并部署项目运行测试

上机题2 登录表单页面国际化2(可选择语言)

(1) 在cn.duzhaojiang.action包创建SelectAction2_01.java

(2) 创建页面文件WebRoot\login2_01.jsp(选择语言、登录)

<%@page contentType="text/html;charset=gbk"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
	<title><s:text name="login.title"></s:text></title>
	<script language="javascript">
		function selectsubmit(){	
				document.form1.submit();
		}
	</script>
</head>
<body>
<center>
	<s:text name="login.title"></s:text>
	<%--选择表单--%>
	<form action="select3.action" method="post" name="form1">
		<select name="languageSelect" onchange="selectsubmit();">
			<option value="choose" selected="selected">
				<s:text name="login.form.choose"></s:text>
			</option>
			<option value="en_US">
				<s:text name="login.form.option1"></s:text>
			</option>
			<option value="zh_CN">
				<s:text name="login.form.option2"></s:text>
			</option>
		</select>
	</form>
	
	<%--登录表单--%>
	<s:form action="login">
		<s:textfield name="uname" key="login.username"></s:textfield>
		<s:password name="upassword" key="login.password"></s:password>
		<s:submit key="login.login"></s:submit>
		<s:reset key="login.reset"></s:reset>
	</s:form>
</center>
</body>
</html>

(3) 配置src\struts.xml文件，重部署执行index.jsp测试

上机题3 登录表单页面国际化2(输入校验)

(1) 在cn.duzhaojiang.action包创建LoginCheck.java, 用户名:admin_du密码654321通过

(2) 在cn.duzhaojiang.action包创建LoginAction01.java

package cn.duzhaojiang.action;

import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction01 extends ActionSupport {
	private String uname;
	private String upassword;
	
	public String getUname() {
		return uname;
	}
	public void setUname(String uname) {
		this.uname = uname;
	}
	public String getUpassword() {
		return upassword;
	}
	public void setUpassword(String upassword) {
		this.upassword = upassword;
	}
	
	public void validate() {
		if(getUname() == null || "".equals(getUname().trim())){
			this.addFieldError("uname", getText("login.username.required"));
		}
		if(getUpassword() == null || "".equals(getUpassword().trim())){
			this.addFieldError("upassword", getText("login.password.required"));
		}
	}

public String execute() throws Exception {
		//new一个LoginCheck对象
		LoginCheck lc = new LoginCheck();

//调用业务逻辑组件来判断
		if(lc.isLogin(getUname(),getUpassword())){
			//如果为合法用户，在request范围中添加属性login，其属性值为true，
			ServletActionContext.getRequest().setAttribute("login", "true");
			return SUCCESS;
		}else
			return ERROR;
	}
}

(3) 配置src\struts.xml文件，重部署执行index.jsp测试(登录)

上机题4 单文件上传(已存在同名文件阻止上传)

(1) 在cn.duzhaojiang.action包创建FileUploadAction3_01.java

public class FileUploadAction3_01 extends ActionSupport {
	private File uploadFile;		//用来封装上传的文件
	private String uploadFileContentType;//用来封装上传文件的类型
	private String uploadFileFileName;	//用来封装上传文件的文件名
	private String savePath;	//文件上传目录
	
	public File getUploadFile() {
		return uploadFile;
	}
	public void setUploadFile(File uploadFile) {
		this.uploadFile = uploadFile;
	}
	public String getUploadFileContentType() {
		return uploadFileContentType;
	}
	public void setUploadFileContentType(String uploadFileContentType) {
		this.uploadFileContentType = uploadFileContentType;
	}
	public String getUploadFileFileName() {
		return uploadFileFileName;
	}
	public void setUploadFileFileName(String uploadFileFileName) {
		this.uploadFileFileName = uploadFileFileName;
	}
	public String getSavePath() {
		return savePath;
	}
	public void setSavePath(String savePath) {
		this.savePath = savePath;
	}
	
	public String execute() throws Exception {
		InputStream is = new FileInputStream(uploadFile);//文件输入流
		String uploadPath = ServletActionContext.getServletContext()
				.getRealPath(savePath);// 设置上传文件目录
		File uploadPathFile = new File(uploadPath);
		String[] files = uploadPathFile.list();
		for(String file:files){
			if(file.equals(uploadFileFileName)){
				this.addFieldError("uploadFile", "该文件已经上传，不要重复上传!");
				return INPUT;
			}
		}
		File toFile = new File(uploadPath, this.getUploadFileFileName());// 设置目标文件
		OutputStream os = new FileOutputStream(toFile);// 创建一个输出流
		byte[] buffer = new byte[1024];//设置缓存
		int length = 0;
		while ((length = is.read(buffer)) > 0) {//读取myFile文件输出到toFile文件中
			os.write(buffer, 0, length);
		}
		is.close();//关闭输入流
		os.close();//关闭输出流
		return SUCCESS;
	}
}

(2) 创建页面文件WebRoot\fileUploadPage3_01.jsp

(3) 配置src\struts.xml文件，重部署执行index.jsp测试

上机题5 单文件上传(已存在同名、同大小文件阻止上传)

(1) 在cn.duzhaojiang.action包创建FileUploadAction4_01.java

package cn.duzhaojiang.action;

public class FileUploadAction4_01 extends ActionSupport {
	private File uploadFile;		//用来封装上传的文件
	private String uploadFileContentType;//用来封装上传文件的类型
	private String uploadFileFileName;	//用来封装上传文件的文件名
	private String savePath;
	
	public File getUploadFile() {//获得上传文件
		return uploadFile;
	}
	public void setUploadFile(File uploadFile) {//设置上传文件
		this.uploadFile = uploadFile;
	}
	public String getUploadFileContentType() {//获得上传文件类型
		return uploadFileContentType;
	}
	public void setUploadFileContentType(String uploadFileContentType) {
		this.uploadFileContentType = uploadFileContentType;//设置上传文件类型
	}
	public String getUploadFileFileName() {//获得上传文件名
		return uploadFileFileName;
	}
	public void setUploadFileFileName(String uploadFileFileName) {
		this.uploadFileFileName = uploadFileFileName;//设置上传文件名
	}
	public String getSavePath() {//获得文件上传目录
		return savePath;
	}
	public void setSavePath(String savePath) {//设置文件上传目录
		this.savePath = savePath;
	}
	
	public String execute() throws Exception {
		InputStream is = new FileInputStream(uploadFile);//文件输入流
		String uploadPath = ServletActionContext.getServletContext()
				.getRealPath(savePath);// 设置上传文件目录
		File uploadPathFile = new File(uploadPath);
		String[] files = uploadPathFile.list();
		for(String file:files){
			if(new File(file).length() == new File(uploadFileFileName).length() &&
			file.equals(uploadFileFileName)
			){
				this.addFieldError("uploadFile", "该文件已经上传，不要重复上传!");
				return INPUT;
			}
		}
		File toFile = new File(uploadPath, this.getUploadFileFileName());// 设置目标文件
		OutputStream os = new FileOutputStream(toFile);// 创建一个输出流
		byte[] buffer = new byte[1024];//设置缓存
		int length = 0;
		while ((length = is.read(buffer)) > 0) {//读取myFile文件输出到toFile文件中
			os.write(buffer, 0, length);
		}
		is.close();//关闭输入流
		os.close();//关闭输出流
		return SUCCESS;
	}
}

(2) 创建页面文件WebRoot\fileUploadPage4_01.jsp

(3) 配置src\struts.xml文件，重部署执行index.jsp测试

上机题6 单文件上传(带用户名username)

(1) 在cn.duzhaojiang.action包创建UploadAction01.java

package cn.duzhaojiang.action;

public class UploadAction01 extends ActionSupport {
	private String username;
	private File myFile;
	private String myFileContentType;
	private String myFileFileName;
	private String savePath;

public String getSavePath() {
		return savePath;
	}
	public void setSavePath(String savePath) {
		this.savePath = savePath;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public File getMyFile() {
		return myFile;
	}
	public void setMyFile(File myFile) {
		this.myFile = myFile;
	}
	public String getMyFileContentType() {
		return myFileContentType;
	}
	public void setMyFileContentType(String myFileContentType) {
		this.myFileContentType = myFileContentType;
	}
	public String getMyFileFileName() {
		return myFileFileName;
	}
	public void setMyFileFileName(String myFileFileName) {
		this.myFileFileName = myFileFileName;
	}

public String execute() throws Exception {
		InputStream is = new FileInputStream(myFile);
		// 设置上传文件目录
		String uploadPath =  ServletActionContext.getServletContext().getRealPath(getSavePath());
		//设置目标文件
		File toFile = new File(uploadPath,this.getMyFileFileName());
		//输出流
		OutputStream os = new FileOutputStream(toFile);
		
		byte[] buffer = new byte[1024];
		int length = 0;
		while((length = is.read(buffer)) > 0) {
			os.write(buffer, 0, length);
		}
		is.close();
		os.close();
		return SUCCESS;
	}
}

(2) 创建页面文件WebRoot\upload01.jsp

(3) 创建页面文件WebRoot\fileUploadResultPage01_.jsp

(4) 配置src\struts.xml文件，重部署执行index.jsp测试

上机题7 多文件上传(不能上传零个文件)

(1) 在cn.duzhaojiang.action包创建SomeFileUploadAction2_01.java

package cn.duzhaojiang.action;

public class SomeFileUploadAction2_01 extends ActionSupport {
	private File[] uploadFiles;				//用来封装所有上传的文件
	private String[] uploadFilesContentType;//用来封装所有上传文件的类型
	private String[] uploadFilesFileName;	//用来封装所有上传文件的文件名
	private String savePath;				//上传文件目录
	
	public File[] getUploadFiles() {//获得所有上传的文件
		return uploadFiles;
	}
	public void setUploadFiles(File[] uploadFiles) {//设置所有上传的文件
		this.uploadFiles = uploadFiles;
	}
	public String[] getUploadFilesContentType() {//获得所有上传文件的类型
		return uploadFilesContentType;
	}
	public void setUploadFilesContentType(String[] uploadFilesContentType) {//设置所有上传文件的类型
		this.uploadFilesContentType = uploadFilesContentType;
	}
	public String[] getUploadFilesFileName() {//获得所有上传文件的文件名
		return uploadFilesFileName;
	}
	public void setUploadFilesFileName(String[] uploadFilesFileName) {//获得所有上传文件的文件名
		this.uploadFilesFileName = uploadFilesFileName;
	}
	public String getSavePath() {//获得上传文件目录
		return savePath;
	}
	public void setSavePath(String savePath) {//设置上传文件目录
		this.savePath = savePath;
	}
	
	public String execute() throws Exception {
		File[] files = getUploadFiles();			//取得文件数组
		if(files == null || files.length == 0) {
			this.addFieldError("uploadFiles", "不能上传零个文件！请选择上传文件!");
			return INPUT;
		}
		for (int i = 0; i < files.length; i++) {	//循环每个上传的文件
			InputStream is = new FileInputStream(files[i]);//基于file[i]创建一个文件输入流
			String uploadPath = ServletActionContext.getServletContext()
					.getRealPath(getSavePath());//获得上传文件目录实际路径
			File toFile = new File(uploadPath, getUploadFilesFileName()[i]);//设置目标文件
			OutputStream os = new FileOutputStream(toFile);//构建输出流
			byte[] buffer = new byte[1024];//设置缓存
			int length = 0;
			while ((length = is.read(buffer)) > 0) {//读取file[i]文件输出到toFile文件中
				os.write(buffer, 0, length);
			}
			is.close();//关闭输入流
			os.close();//关闭输出流
		}
		return SUCCESS;
	}
}

(2) 创建页面文件WebRoot\SomeFileUploadPage2_01.jsp

(3) 配置src\struts.xml文件，重部署执行index.jsp测试

上机题8 多文件上传(带删除按钮)

(1) 创建页面文件WebRoot\SomeFileUploadPage2_01_.jsp

<%@ page language="java" pageEncoding="gbk"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
	<title>任意多文件上传</title>
	<script language="javascript">
		var num=0;

function deleteFileComponent(n){
			var node =document.getElementById("addTXT" + n);
			var delButton=document.getElementById("addBTN" + n);
			var brid=document.getElementById("br" + n);
			if(node){
    			node.parentNode.removeChild(node);
    			delButton.parentNode.removeChild(delButton);
     			brid.parentNode.removeChild(brid);
			};
		};

function addFileComponent(){
			num++;
			var uploadHTML = document.createElement("input");
			uploadHTML.type="file";
			uploadHTML.name="uploadFiles"; 
			uploadHTML.id="addTXT" + num; 
			document.getElementById("files").appendChild(uploadHTML);
			
			uploadHTML = document.createElement("input");
			uploadHTML.type="button";
			uploadHTML.value="删除"; 
			uploadHTML.id="addBTN" + num; 
			uploadHTML.setAttribute("onclick", "javascript:deleteFileComponent(" + num + ")"); 
			document.getElementById("files").appendChild(uploadHTML);

uploadHTML = document.createElement("br");
			uploadHTML.id="br" + num; 
			document.getElementById("files").appendChild(uploadHTML);
		};
	</script>
</head>
<body>
	<s:fielderror></s:fielderror>
	<form action="someFileUpload2_.action" method="post" enctype="multipart/form-data">
		任意多文件上传(带删除按钮):<br>
		<input type="button" value="增加文件" onclick="addFileComponent()">
		<div id="files">
			<input type="file" name="uploadFiles"><br />
		</div>
		<input type="submit" value="上传">
		<input type="reset">
	</form>
</body>
</html>

(2) 配置src\struts.xml文件，重部署执行index.jsp测试

最终内容参阅

(1) src\struts.xml最终内容参阅

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
	<constant name="struts.i18n.encoding" value="gbk" />  
	<constant name="struts.custom.i18n.resources" value="Du_Resource"/>

<package name="struts2" extends="struts-default">
		<action name="showActionMessage" class="cn.duzhaojiang.action.ShowActionMessage01">
			<result name="success">/ShowActionMessage01.jsp</result>
		</action>

<action name="showActionMessage2" class="cn.duzhaojiang.action.ShowActionMessage2_01">
			<result name="success">/ShowActionMessage2_01.jsp</result>
		</action>

<action name="showActionMessage3" class="cn.duzhaojiang.action.ShowActionMessage3_01">
			<result name="success">/ShowActionMessage3_01.jsp</result>
		</action>

<action name="showActionMessage4" class="cn.duzhaojiang.action.ShowActionMessage4_01">
			<result name="success">/ShowActionMessage4_01.jsp</result>
		</action>

<action name="select" class="cn.duzhaojiang.action.SelectAction01">
			<result name="success">/UserSelect01.jsp</result>
		</action>

<action name="select2" class="cn.duzhaojiang.action.SelectAction01">
			<result name="success">/UserSelect2_01.jsp</result>
		</action>

<action name="fileUpload" class="cn.duzhaojiang.action.FileUploadAction01">
			<result name="success">/fileUploadResultPage01.jsp</result>
			<result name="input">/fileUploadPage01.jsp</result>
		</action>

<action name="fileUpload2" class="cn.duzhaojiang.action.FileUploadAction2_01">
			<param name="savePath">/upload</param>
			<result name="success">/fileUploadResultPage01.jsp</result>
			<result name="input">/fileUploadPage2_01.jsp</result>
		</action>

<action name="fileUpload2_" class="cn.duzhaojiang.action.FileUploadAction2_01">
			<param name="savePath">/upload</param>
			<result name="success">/fileUploadResultPage01.jsp</result>
			<result name="input">/fileUploadPage2_01_.jsp</result>
			<interceptor-ref name="fileUpload">
				<param name="allowedTypes">image/bmp,image/jpeg,image/png</param>
				<param name="maximumSize">61440</param>
			</interceptor-ref>
			<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>

<action name="someFileUpload" class="cn.duzhaojiang.action.SomeFileUploadAction01">
			<param name="savePath">/upload</param>
			<result name="success">/SomeFileUploadResultPage01.jsp</result>
			<result name="input">/SomeFileUploadPage01.jsp</result>
			<interceptor-ref name="fileUpload">
				<param name="allowedTypes">text/plain,application/msword,image/jpeg</param>
				<param name="maximumSize">1048576</param>
			</interceptor-ref>
			<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>

<action name="someFileUpload_" class="cn.duzhaojiang.action.SomeFileUploadAction01">
			<param name="savePath">/upload</param>
			<result name="success">/SomeFileUploadResultPage01.jsp</result>
			<result name="input">/SomeFileUploadPage01_.jsp</result>
			<interceptor-ref name="fileUpload">
				<param name="allowedTypes">text/plain,application/msword,image/jpeg</param>
				<param name="maximumSize">1048576</param>
			</interceptor-ref>
			<interceptor-ref name="defaultStack"></interceptor-ref>
		</action>
		
		<action name="select3" class="cn.duzhaojiang.action.SelectAction2_01">
			<result name="success">/login2_01.jsp</result>
		</action>

<action name="login" class="cn.duzhaojiang.action.LoginAction01">
			<result name="input">/login2_01.jsp</result>
			<result name="error">/login2_01.jsp</result>
			<result name="success">/index.jsp</result>
		</action>
		
		<action name="fileUpload3" class="cn.duzhaojiang.action.FileUploadAction3_01">
			<param name="savePath">/upload</param>
			<result name="success">/fileUploadResultPage01.jsp</result>
			<result name="input">/fileUploadPage3_01.jsp</result>
		</action>

<action name="fileUpload4" class="cn.duzhaojiang.action.FileUploadAction4_01">
			<param name="savePath">/upload</param>
			<result name="success">/fileUploadResultPage01.jsp</result>
			<result name="input">/fileUploadPage4_01.jsp</result>
		</action>

<action name="upload" class="cn.duzhaojiang.action.UploadAction01">
			<param name="savePath">/upload</param>
			<result name="success">/fileUploadResultPage01.jsp</result>
			<result name="input">/upload01.jsp</result>
		</action>
		
		<action name="someFileUpload2" class="cn.duzhaojiang.action.SomeFileUploadAction2_01">
			<param name="savePath">/upload</param>
			<result name="success">/SomeFileUploadResultPage01.jsp</result>
			<result name="input">/SomeFileUploadPage2_01.jsp</result>
		</action>
		
		<action name="someFileUpload2_" class="cn.duzhaojiang.action.SomeFileUploadAction2_01">
			<param name="savePath">/upload</param>
			<result name="success">/SomeFileUploadResultPage01.jsp</result>
			<result name="input">/SomeFileUploadPage2_01_.jsp</result>
		</action>
		
	</package>
</struts>

(2) src\Du_Resource_zh_CN.properties最终内容参阅

welcomeMessage=\u5927\u5BB6\u597D\uFF01
welcomeMessage1={0}\uFF0C\u4F60\u597D\uFF01
ActionMessage=\u5168\u5C40\u8303\u56F4-\u6B22\u8FCE\u4FE1\u606F
form.choose = \u8BF7\u9009\u62E9\u8BED\u8A00\u73AF\u5883
form.option1 = \u7F8E\u56FD\u82F1\u8BED
form.option2 = \u7B80\u4F53\u4E2D\u6587
form.option3 = \u7E41\u4F53\u4E2D\u6587
page.message = \u9875\u9762\u6B63\u6587
page.title =\u7B80\u4F53\u4E2D\u6587\u9875\u9762
struts.messages.error.file.too.large=\u4E0A\u4F20\u7684\u6587\u4EF6\u592A\u5927\uFF0C\u8BF7\u91CD\u65B0\u9009\u62E9\u4E0A\u4F20\u6587\u4EF6\uFF01\uFF01
struts.messages.error.content.type.not.allowed=\u4E0A\u4F20\u7684\u6587\u4EF6\u7C7B\u578B\u4E0D\u5141\u8BB8\uFF0C\u8BF7\u91CD\u65B0\u9009\u62E9\u4E0A\u4F20\u6587\u4EF6\uFF01\uFF01
login.title = \u767B\u5F55
login.username = \u7528\u6237\u540D
login.password = \u5BC6\u7801
login.username.required = \u7528\u6237\u540D\u5FC5\u987B\u8F93\u5165
login.password.required = \u5BC6\u7801\u5FC5\u987B\u8F93\u5165
login.login = \u767B\u5F55
login.reset = \u91CD\u7F6E
login.form.choose = \u8BF7\u9009\u62E9\u8BED\u8A00\u73AF\u5883
login.form.option1 = \u7F8E\u56FD\u82F1\u8BED
login.form.option2 = \u7B80\u4F53\u4E2D\u6587

(3) src\Du_Resource_en_US.properties最终内容参阅

返回章节目录

第10章 国际化和文件上传【首页】杜老师

0. 创建项目

1. Jsp页面国际化

1.1 加载全局资源文件完成国际化

1.2 临时指定资源文件完成国际化

1.3 为资源文件传递参数

1.4 资源信息查找顺序

2. Action国际化

2.1 加载全局资源文件完成国际化

2.2 加载包范围资源文件完成国际化

2.3 加载Action范围资源文件完成国际化

2.4 无资源信息

2.5 资源信息查找顺序

实训1. 实现用户自行选择语言环境

3. 基于Struts2完成文件上传

3.1 Common-FileUpload框架

3.2 配置上传解析器

3.3 创建文件上传控制器

3.4 创建文件上传页面文件

4. 文件上传高级配置

4.1 struts.xml中设置文件上传目录

4.2 限制上传文件大小和类型

4.3 自定义上传错误提示信息

实训2. 多文件上传

3个文件上传

任意多文件上传

5. 上机题

上机题1 登录表单页面国际化

上机题2 登录表单页面国际化2(可选择语言)

上机题3 登录表单页面国际化2(输入校验)

上机题4 单文件上传(已存在同名文件阻止上传)

上机题5 单文件上传(已存在同名、同大小文件阻止上传)

上机题6 单文件上传(带用户名username)

上机题7 多文件上传(不能上传零个文件)

上机题8 多文件上传(带删除按钮)

最终内容参阅

第10章国际化和文件上传【首页】杜老师