2011级-csdn-java-张侃—struts2文件上传错误信息国际化的处理（案例）
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@ taglib uri="/struts-tags" prefix="s"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><formaction="${pageContext.request.contextPath}/csdn/UploadAction_upload.action"method="post" enctype="multipart/form-data">上传文件:<input type="file" name="upload"><br /><input type="submit" value="上传" /></form>错误信息:<br /><s:fielderror></s:fielderror></body></html>
web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" 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"><filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class></filter><filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern></filter-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list></web-app>
struts.xml
<?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> <!-- 常量的配置 --> <include file="struts-constant.xml"/> <package name="user" namespace="/csdn" extends="struts-default"> <global-results> <result name="input">/index.jsp</result> </global-results> <action name="UploadAction_*" class="www.csdn.international_upload.action.UploadAction" method="{1}"> <interceptor-ref name="fileUpload"> <!-- 设置文件上传的类型：Tomcat/conf/web.xml文件 就有文件的类型的名称 --> <param name="allowedTypes">image/jpeg,image/pjpeg,application/octet-stream,application/x-zip-compressed</param> <param name="maximumSize">5242880</param> </interceptor-ref> <!-- 默认的拦截器栈 --> <interceptor-ref name="defaultStack"/> <result name="success">/index.jsp</result> </action> </package></struts>
struts-constant.xml
<?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> <!-- 常量的配置 --> <!-- struts2的后缀 --> <constant name="struts.action.extension" value="action"/> <!-- 编码方式 --> <constant name="struts.i18n.encoding" value="UTF-8"/> <!-- 浏览器静态缓存最好处于关闭状态 --> <constant name="struts.serve.static.browserCache" value="false"/> <!-- struts.xml文件当被修改后 重新加载，开发阶段最好打开 --> <constant name="struts.configuration.xml.reload" value="true"/> <!-- 处于开发阶段 最好把开发模式打开 会打印更多的详细错误信息 --> <constant name="struts.devMode" value="true"/> <!-- 设置临时保存的路径 --> <constant name="struts.multipart.saveDir" value="c:\\day\\"/> <!-- 设置文件上传的大小 ,这个值必须大于等于拦截器中的值 --> <constant name="struts.multipart.maxSize" value="5242880"/> <!-- 国际化资源文件的基本名称 --> <constant name="struts.custom.i18n.resources" value="csdn"/> </struts>
UploadAction.java
package www.csdn.international_upload.action;import java.io.File;import java.io.IOException;import javax.servlet.ServletContext;import org.apache.commons.io.FileUtils;import org.apache.struts2.ServletActionContext;import org.apache.struts2.interceptor.FileUploadInterceptor;import com.opensymphony.xwork2.ActionSupport;public class UploadAction extends ActionSupport {private File file;private String contentType;private String filename; public void setUpload(File file) {this.file = file;}public void setUploadContentType(String contentType) {this.contentType = contentType;}public void setUploadFileName(String filename) {this.filename = filename;}public String upload() {String path = ServletActionContext.getServletContext().getRealPath("WEB-INF/uploads");File pfile = new File(path);if (!pfile.exists()) {pfile.mkdirs();}try {FileUtils.copyFile(file, new File(pfile, System.currentTimeMillis()+ "_" + filename));return SUCCESS;} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}return INPUT;}}两个配置文件：
运行结果界面：
