How to Create a Simple Project in Struts2

最新推荐文章于 2021-06-28 18:17:32 发布

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#Struts #JSP #XML #Apache #freemarker

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本文详细介绍如何使用Struts2框架创建项目，包括导入必要的jar包、配置Web.xml、创建struts.xml文件、定义Action类及其相关jsp页面等步骤。

[color=red][b]Hereunder is a Sample for reference only, If you are Junior, you could follow this mentioned step by step to create your own Project In Struts2. Sincerely hope you find it favorable.Thanks.[/b][/color]

[color=darkred][b]1.Import Jar Package;[/b][/color]
struts2-core-2.x.x.jar
xwork-2.x.x.jar
ognl-2.6.x.jar
freemarker-2.3.x.jar
commons-logging-1.1.x.jar

[color=red][b]2.Modify(Reset)configuration in Web.xml, and then Add Filter like that:[/b][/color]

<filter>
<filter-name>struts2</filter-name>
<filter-class> org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

[color=red][b]3.Create new struts.xml under src as:[/b][/color]

<?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>
</struts>

[color=red][b]4.Create Now Class 'LoginAction' and extends to Class 'ActionSupport'[/b][/color]

import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {

}

[color=red][b]5.Create New Jsp File which is refered to 'LoginAction' [/b][/color]

[color=red][b]6. Create Action Controler which should be related to Attributes Action in Jsp. And create get and set method to get and set Values.[/b]
[/color] String username;
String pwd;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}

[color=red][b]7.Default Method"execute" to realize the function, If success,return success,else return input.[/b][/color]

public String execute(){
System.out.println("执行默认的execute方法！");
System.out.println("用户名："+this.username);
System.out.println("密码："+this.pwd);
return "success";
}

[color=red][b]8 implenments Struts.xml and goto please be noted that when implement struts.xml, there are one file that "struts-
default.xml" must in, As for the package,extends struts-default （extends=“struts-default”）[/b][/color]

<include file="struts-default.xml" />

<package name="struts2" extends="struts-default">
<action name="loginAction" class="com.dgy.action.LoginAction">
<result name="success">Hello.jsp</result>
</action>
</package>

PS: This is original