Struts2快速开发步骤~~~新手必学！！！！

1.添加struts2依赖的jar

commons-fileupload-1.2.2.jar

commons-io-2.0.1.jar

commons-lang3-3.1.jar

commons-logging-1.1.1.jar

freemarker-2.3.19.jar

javassist-3.11.0.GA.jar

ognl-3.0.5.jar

struts2-core-2.3.4.1.jar

xwork-core-2.3.4.1.jar

2.在web.xml中配置核心控制器
<!-- 配置struts2的核心控制器 -->

    <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>

3.新建业务逻辑控制器XxxAction

public class LoginAction {
//与表单元素名称一致,用于封装表单元素的值
private String uname;
private String upass;
public String getUname() {
return uname;
}
public void setUname(String uname) {
this.uname = uname;
}
public String getUpass() {
return upass;
}
public void setUpass(String upass) {
this.upass = upass;
}

public String execute() throws Exception{
if("admin".equals(uname)&&"admin".equals(upass)){
return "success";//逻辑名称
}
return "fail";
}

}

4.在src下新建配置文件struts.xml

<struts>
<!-- extends="父包名" ,该包必须继承struts-default-->
<package name="first" extends="struts-default">
<!--地址栏去掉.action-->
<action name="login" class="com.xasxt.action.LoginAction">
<result name="success">/success.jsp</result>
<result name="fail">/index.jsp</result>
</action>
</package>

</struts>

5.编写页面 

  <form action="login.action" method="post">
<!--表单元素的名称必须与action中的属性名称一致-->
<p>用户名:<input type="text" name="uname"/></p>
<p>密码:<input type="text" name="upass"/></p>
<p><input type="submit" value="登陆"/></p>
</form>