Struts2框架自学之路——轻松入门

目录

简介

Struts2中的Action

Action类的配置

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
<package name="hellodemo" extends="struts-default" namespace="/">
<!--name: 访问名称-->
<action name="hello" class="com.wm103.action.HelloAction">
<!--配置方法返回值跳转到的页面-->
<result name="ok">/hello.jsp</result>
</action>
</package>
</struts>

<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>

http://localhost:8080/Web应用的名称/hello.action

http://localhost:8080/Web应用的名称/hello

web.xml中Struts2的过滤器

Struts2的核心配置文件

标签package

标签package的属性

<package name="hellodemo" extends="struts-default" namespace="/web">
<!--name: 访问名称-->
<action name="hello" class="com.wm103.action.HelloAction">
<!--配置方法返回值跳转到的页面-->
<result name="ok">/hello.jsp</result>
</action>
</package>

http://localhost:8080/Web应用名称/web/hello

标签action

标签action的属性

标签result

标签result的属性

<!--配置方法返回值跳转到的页面-->
<result name="ok">/hello.jsp</result>

分模块开发

<!-- 引入hello.xml文件 -->
<include file="com/wm103/action/hello.xml"></include>

<include file="hello.xml"></include>

Struts2常量配置

org.apache.struts2

default.properties

修改Struts2默认常量值

<constant name="struts.i18n.encoding" value="UTF-8"></constant>

struts.properties

<init-param>

常用常量

struts.i18n.encoding=UTF-8

http://blog.csdn.net/qq_15096707/article/details/70953444#request接收中文数据乱码问题

Action的编写方式

public class HelloAction {
public String execute() {
return "ok";
}
}

import com.opensymphony.xwork2.Action;

/**
* Created by DreamBoy on 2017/5/16.
* 实现接口
*/
public class UserAction implements Action {
@Override
public String execute() throws Exception {
//return "success";
return SUCCESS;
}
}

import com.opensymphony.xwork2.ActionSupport;

/**
* Created by DreamBoy on 2017/5/16.
* 继承类
*/
public class PersonAction extends ActionSupport {
@Override
public String execute() throws Exception {
return SUCCESS;
}
}

修改访问Action时执行的方法

*

*

<package name="demo" extends="struts-default" namespace="/">
<action name="book_*" class="com.wm103.action.BookActon" method="{1}"></action>
</package>

*

{1}

*

book_add

book_*

{1}

book_

book_*

import com.opensymphony.xwork2.ActionSupport;

public class HelloAction extends ActionSupport {
public String execute() {
return NONE;
}
}