struts2 经典配置

最新推荐文章于 2023-02-15 10:36:48 发布

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#Struts #Apache #Java #Spring #XML

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本文介绍如何为Struts2的每个Action配置XML文件，并展示了如何通过继承BaseAction来实现通用的功能，如设置响应头防止缓存及获取请求参数。

[/code]每个action都写一个xml文件 比如
[code="java"]
   <?xml version="1.0" encoding="gbk"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>	


	<package name="shop" extends="main" namespace="/shop">


		<action name="*" method="{1}" class="goodsAction">
		<result name="default">${target}</result>
		<result name="redirect" type="redirect">${target}</result>
		<result name="redirectAction" type="redirectAction">${target}</result>
		</action>
	</package>
</struts>

class="shopAction" 需要在 applicationContext-action.xml中进行配置


   <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
		  "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<beans default-autowire="byName">


	<bean id="goodsAction" class="com.specl.mis.sale.action.GoodsAction" scope="prototype"></bean>

</beans>

在struts.xml文件中将加入为每个action写的配置文件


   <?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>
	<constant name="struts.devMode" value="true" />
	<constant name="struts.ognl.allowStaticMethodAccess" value="true"/>

	<package name="main" extends="struts-default" namespace="/">
		<interceptors>

			<interceptor name="loginInterceptor"
				class="com.specl.mis.interceptor.LoginInterceptor"></interceptor>

			<interceptor-stack name="defaultLogin">
				<interceptor-ref name="loginInterceptor"></interceptor-ref>
				<interceptor-ref name="defaultStack"></interceptor-ref>
			</interceptor-stack>
		</interceptors>

		<default-interceptor-ref name="defaultLogin"></default-interceptor-ref>

		<global-results>
			<result name="login" type="redirect">/login.jsp</result>
		</global-results>
	</package>



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


</struts>

然后再来看看action的写法
需要一个baseAction




import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.apache.struts2.interceptor.ApplicationAware;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.apache.struts2.interceptor.SessionAware;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.Preparable;
import com.specl.mis.login.service.MyUserDetails;
import com.specl.mis.login.springsecurityutil.SecurityUserHolder;
import com.specl.mis.utils.RequestUtil;
import com.specl.mis.utils.SearchMap;
import com.specl.model.Operator;

public class BaseAction extends ActionSupport implements ServletResponseAware,
		ServletRequestAware, SessionAware, ApplicationAware, Preparable {

	private static final long serialVersionUID = 1L;



	protected final static  String RELOAD = "reload";

	protected final static String DEFAULT = "default";

	protected final static String REDIRECTACTION  = "redirectAction";

	protected final static String REDIRECT = "redirect";

	protected final static String CHAIN = "chain";

	private String target;

	protected int page;

	protected SearchMap searchMap;

	protected HttpServletResponse response;

	protected HttpServletRequest request;

	protected Map<String, Object> session;

	protected Map<String, Object> application;


	public String getTarget() {
		return target;
	}

	public void setTarget(String target) {
		this.target = target;
	}

	protected String redirect(String target){
		setTarget("/WEB-INF/"+target);
		return DEFAULT;
	}
	protected String redirect(String type,String target){
		setTarget(target);
		return type;
	}


	public void setServletResponse(HttpServletResponse response) {
		this.response = response;

	}

	public void setServletRequest(HttpServletRequest request) {
		this.request = request;

	}

	public void setSession(Map<String, Object> session) {
		this.session = session;

	}

	public void setApplication(Map<String, Object> application) {
		this.application = application;

	}


	public void prepare() throws Exception {
		response.setHeader("Pragma","No-cache");        
		response.setHeader("Cache-Control","no-cache");        
		response.setDateHeader("Expires",0);     
		page = RequestUtil.getIntParameter(request, "page", 1);
		searchMap = new SearchMap(request);
	}

	public MyUserDetails getSessionOperator(){
		MyUserDetails myUserDetails = SecurityUserHolder.getCurrentUser();
		return  myUserDetails;
	}
}


public class CardAction extends BaseAction {
       public String test() {
        return redirect("/card/batchCardList.jsp");
    }


}