Struts2的配置与简单案例:
1. 创建一个dynamic web project(创建时让它自动生成web.xml文件)
2.引入相关jar包
3.在web.xml中进行配置
(启动tomcat服务器之后第一个加载的文件就是web.xml)
在配置中添加过滤器:
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<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> |
4.创建struts的核心文件(struts.xml),将其创建在Java Resources-src文件目录下,内容为:
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<? 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 > </ struts > |
5.同样在Java Resources-src文件目录下创建一个Action类,继承自ActionSupport,并覆盖父类中的execute方法:
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public class HelloWorldAction extends ActionSupport { @Override public String execute() throws Exception { System.out.println( "执行Action" ); return SUCCESS; } } |
6.在struts.xml中的<struts>标签中添加:
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< struts > < package name = "default" namespace = "/" extends = "struts-default" > < action name = "helloworld" class = "default package.HelloWorldAction" > < result >/result.jsp</ result > </ action > </ package > </ struts > |
7.创建视图(在WebRoot目录下创建result.jsp):
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< body > This is result.jsp! </ body > |
8.调试运行
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