Struts就是基于mvc模式的框架!
(struts其实也是servlet封装,提高开发效率!)
Struts开发步骤:
1. web项目,引入struts - jar包
2. web.xml中,引入struts的核心功能
----配置过滤器
3. 开发action
4. 配置action
---- src/struts.xml
1. 引入8个jar文件
2. web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>struts</display-name>
<!-- 引入struts核心过滤器 -->
<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>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
3. 开发Action
// 开发action: 处理请求
public class HelloAction extends ActionSupport {
// 处理请求
public String execute() throws Exception {
System.out.println("访问到了action,正在处理请求");
System.out.println("调用service");
return "success";
}
}
4. 配置action : src/struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="xxxxx" extends="struts-default">
<action name="hello" class="cn.lfsenior.action.HelloAction" method="execute">
<result name="success">/success.jsp</result>
</action>
</package>
</struts>