struts2 基本搭建 helloworld

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1.基本jar包围 1+6+3+1

1.1 struts2 基本jar为（6个）：

commons-fileupload-1.2.2.jar

commons-logging-1.1.1.jar

freemarker-2.3.19.jar

ognl-3.0.5.jar

struts2-core-2.3.4.1.jar

xwork-core-2.3.4.1.jar

1.2 需要再加载相关struts2 jar包

commons-io-2.0.1.jar

commons-lang3-3.1.jar

javassist-3.11.0.GA.jar

1.3 外加log4j jar

log4j-1.2.9.jar

2.web.xml 添加如下代码

   <!-- struts2 配置 -->     <filter>        <filter-name>struts-prepare</filter-name>        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>struts-prepare</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>      <filter>        <filter-name>struts-execute</filter-name>        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>struts-execute</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>

3. struts.xml 配置

<?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"><!-- START SNIPPET: xworkSample --><struts>    <package name="default" namespace="/" extends="struts-default">        <action name="login" class="demo.action.LoginAction">            <result name="success">/WEB-INF/demo/welcome.jsp</result>        </action>    </package></struts>

4.log4j.xml 基本配置

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <appender name="A1" class="org.apache.log4j.RollingFileAppender">     <param name="File" value="sshdemo2.log" />     <param name="MaxFileSize" value="1MB" />     <param name="MaxBackupIndex" value="10" />     <layout class="org.apache.log4j.PatternLayout">         <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss}][%C-%M]%m%n" />     </layout> </appender> <appender name="A2" class="org.apache.log4j.ConsoleAppender">     <layout class="org.apache.log4j.PatternLayout">         <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss}][%C-%M]%m%n" />     </layout> </appender> <logger name="com.opensymphony">     <level value="DEBUG" />     <appender-ref ref="A1" /> </logger> <logger name="org.apache.struts2">     <level value="DEBUG" />     <appender-ref ref="A1" /> </logger> <root>     <priority value="DEBUG" />     <appender-ref ref="A2" /> </root> </log4j:configuration>