Question

Eclipse怎样配置struts2

Answer 1

Eclipse配置struts2开发环境：
1:在struts官网下载Struts2的最新版即下载Full Distribution，这是Struts2的完整版
2:解压下载的压缩包。在struts-2.3.14.3 -> lib路径下拷贝出上图所示的8个jar包，放入java工程下的lib目录内。
3:在web.xml配置文件中，配置Struts2的核心Filter。代码如下:
<span style="white-space:pre"> </span><span style="color:#3366ff;"><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></span>
4、为了让Struts运行起来，在src目录下创建Struts.xml配置文件。代码如下:
<span style="color:#3366ff;"><?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>
<package name="test" extends="struts-default">
<action name="login" class="com.rankexam.control.LoginAction">
<!-- 定义三个逻辑视图和物理资源之间的映射 -->
<result name="input">/Login.jsp</result>
<result name="error">/Error.jsp</result>
<result name="success">/Welcome.jsp</result>
</action>
</package>
</struts></span>
5、创建处理用户请求的Action类，该类继承于ActionSupport类。代码如下:
<span style="color:#3366ff;">package com.rankexam.control;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport{
/**
* 默认版本序列号
*/
private static final long serialVersionUID = 1L;

private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String execute() throws Exception {
if(getUsername().equals("baidu") && getPassword().equals("baidu")){
ActionContext.getContext().getSession().put("user", getUsername());
return "success";
}else{
return "error";
}
}
}</span>