Spring+struts2 注解action

开始试用Spring+struts2 注解action 的功能惊奇的发现，spring的注解居然支持继承
废话少说，上例子
所有action的超类

package com.example.actions;

import javax.annotation.Resource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

import com.example.ActionTool;
import com.opensymphony.xwork2.ActionSupport;

@Component
@Scope("prototype")
public class AbstractAction extends ActionSupport {
	protected static final Log log = LogFactory.getLog(AbstractAction.class);
    private ActionTool actionTool;
	public ActionTool getActionTool() {
		return actionTool;
	}
	@Resource(name="actionTool")
	public void setActionTool(ActionTool actionTool) {
		this.actionTool = actionTool;
	}

	public String index() throws Exception{
		throw new Exception("请覆盖 Action 父类方法");
		
	}
	
}

package com.example.actions;

import javax.annotation.Resource;

import com.example.ActionTool;



public class HelloWorld extends AbstractAction {
	private int i;
	private String message;
    private ActionTool atool;
	
	public String getMessage() {
		return message;
	}

	public String index(){
	    this.getActionTool().testTool();
	    this.getAtool().testTool();
	    log.info(i++);
		message = "Hello World!";
		return SUCCESS;
	}
	
	//@Action("/myword/say")
	public String execute() {
		message = "Hello World!";
		return SUCCESS;
	}

	
	public ActionTool getAtool() {
		return atool;
	}

	@Resource(name="actionTool")
	public void setAtool(ActionTool atool) {
		this.atool = atool;
	}

}

package com.example;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Component;

@Component("actionTool")
public class ActionTool {
	protected static final Log log = LogFactory.getLog(ActionTool.class);
    public void testTool(){
    	
    
    	log.info("我是工具类");
    }
}

在浏览器中键入 http://localhost:8080/iweb/hello-world
后台打印出

引用

[Line : 45 ]: Could not find property [struts.valueStack]                             -[com.opensymphony.xwork2.util.logging.commons.CommonsLogger.warn(CommonsLogger.java:45)]-2009-02-04 13:08:32,343
[Line : 13 ]: 我是工具类                             -[com.example.ActionTool.testTool(ActionTool.java:13)]-2009-02-04 13:08:32,343
[Line : 13 ]: 我是工具类                             -[com.example.ActionTool.testTool(ActionTool.java:13)]-2009-02-04 13:08:32,343
[Line : 21 ]: 0                             -[com.example.actions.HelloWorld.index(HelloWorld.java:21)]-2009-02-04 13:08:32,343
[Line : 45 ]: Could not find property [org.apache.catalina.jsp_file]                             -[com.opensymphony.xwork2.util.logging.commons.CommonsLogger.warn(CommonsLogger.java:45)]-2009-02-04 13:08:32,375
[Line : 45 ]: Could not find property [struts.valueStack]                             -[com.opensymphony.xwork2.util.logging.commons.CommonsLogger.warn(CommonsLogger.java:45)]-2009-02-04 13:08:32,953
[Line : 13 ]: 我是工具类                             -[com.example.ActionTool.testTool(ActionTool.java:13)]-2009-02-04 13:08:32,953
[Line : 13 ]: 我是工具类                             -[com.example.ActionTool.testTool(ActionTool.java:13)]-2009-02-04 13:08:32,953
[Line : 21 ]: 0                             -[com.example.actions.HelloWorld.index(HelloWorld.java:21)]-2009-02-04 13:08:32,953
[Line : 45 ]: Could not find property [org.apache.catalina.jsp_file]                             -[com.opensymphony.xwork2.util.logging.commons.CommonsLogger.warn(CommonsLogger.java:45)]-2009-02-04 13:08:32,953

很明显，actionTool 被注入了,实例也是prototype的，每次i都是新实例变量，太方便了，以后再也不用在xml中两边都配置action实例了，哇哈哈！

评论

1 楼 zhiweiv 2009-05-23  

   spring的注解一直都支持继承