JavaWeb -- Struts2 ResultType细化, 国际化

1. ResultType细化

<result-types>           <result-type name="chain" class="com.opensymphony.xwork2.ActionChainResult"/>            <result-type name="dispatcher" class="org.apache.struts2.dispatcher.ServletDispatcherResult" default="true"/>            <result-type name="freemarker" class="org.apache.struts2.views.freemarker.FreemarkerResult"/>            <result-type name="httpheader" class="org.apache.struts2.dispatcher.HttpHeaderResult"/>            <result-type name="redirect" class="org.apache.struts2.dispatcher.ServletRedirectResult"/>            <result-type name="redirectAction" class="org.apache.struts2.dispatcher.ServletActionRedirectResult"/>            <result-type name="stream" class="org.apache.struts2.dispatcher.StreamResult"/>            <result-type name="velocity" class="org.apache.struts2.dispatcher.VelocityResult"/>            <result-type name="xslt" class="org.apache.struts2.views.xslt.XSLTResult"/>            <result-type name="plainText" class="org.apache.struts2.dispatcher.PlainTextResult" /></result-types>

示例action

/** * ResultTypeAction */public class ResultTypeAction extends ActionSupport {private static final long serialVersionUID = -6933309304624396640L;private String name = "中文" ;private String saveFileName ;/** * 只能请求转发到jsp或者是servlet. */public String dispatcher() {System.out.println("dispatcher");return "dispatcher";}/** * 重定向到任意的url. */public String redirect() {System.out.println("redirect");return "redirect";}/** * 重定向action的好处在于不需要硬编码url地址,即不需要绑定url模式.只能重定向到当前应用中的 * 某个action. */public String redirectAction() {System.out.println("redirectAction");return "redirectAction";}/** * 得到输入流 * @throws FileNotFoundException  */public InputStream getIs() throws FileNotFoundException{return new FileInputStream("d:/sunset.jpg");}/** * 下载 */public String stream(){try {saveFileName = URLEncoder.encode("日落", "UTF-8");} catch (UnsupportedEncodingException e) {e.printStackTrace();}return "stream" ;}/** * 链化action,请求转发到另外一个action,在同一个线程中,数据共享 */public String chain(){System.out.println("chain");return "chain" ;}/** * 输出纯文本 */public String plainText(){System.out.println("plainText");return "plainText" ;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSaveFileName() {return saveFileName;}public void setSaveFileName(String saveFileName) {this.saveFileName = saveFileName;}}

struts配置文档  rt.xml

<?xml version="1.0"?><!DOCTYPE struts PUBLIC    "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"    "http://struts.apache.org/dtds/struts-2.1.7.dtd"><struts>    <package name="RtPkg" namespace="/rt" extends="struts-default">        <action name="ResultTypeAction_*" class="cn.itcast.struts2.resulttype.ResultTypeAction" method="{1}">            <result name="dispatcher" type="dispatcher">/login.jsp</result><!--调用action中的数据 用 ${...}-->            <result name="redirect" type="redirect">/ui/UiAction_saveData.do?name=${name}</result>            <result name="redirectAction" type="redirectAction">                <param name="actionName">UiAction_saveData</param>                <param name="namespace">/ui</param>                <param name="name">${name}</param>                <param name="age">20</param>            </result>            <result name="stream" type="stream">                <param name="contentType">image/jpeg</param>                <param name="contentDisposition">                    attachment;filename="${@java.net.URLEncoder@encode('日落', 'UTF-8')}.jpg"                </param>                <param name="inputName">is</param>            </result>            <result name="chain" type="chain">                <param name="actionName">UiAction_saveData</param>                <param name="namespace">/ui</param>            </result>            <result name="plainText" type="plainText">                <param name="location">/ipmsg.log</param>                <param name="charSet">GBK</param>            </result>        </action>    </package></struts>

2. 国际化

显示页面

<%@ page language="java" contentType="text/html; charset=utf-8"%><%@taglib uri="/struts-tags" prefix="s"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><title>reg.jsp</title></head><body><s:form namespace="/i18n" action="I18nAction_toRegView" method="post" theme="xhtml"><!--国际化显示语言选择--><s:select name="request_locale"  list="#{@java.util.Locale@CHINA:@[e-mail](@java.util.Locale@CHINA),@java.util.Locale@TAIWAN:@[e-mail](@java.util.Locale@TAIWAN),@java.util.Locale@US:@[e-mail](@java.util.Locale@US),@java.util.Locale@UK:@[e-mail](@java.util.Locale@UK),@java.util.Locale@JAPAN:@[e-mail](@java.util.Locale@JAPAN)}"  listKey="key"  listValue="value"  onchange="this.form.submit();"  value="locale"></s:select><!--国际化显示 提示信息--><s:textfield name="name" key="label.name" /><s:submit /></s:form></body></html>

语言资源文件放在action同目录下， 命名格式 action同名 + 国家代码 + 语言代码

I18nAction_zh_CN.properties

label.name=userName_zh_CN

I18nAction_en_US.properties

label.name=userName_en_US