package com.whyc.task;
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import com.whyc.util.ActionUtil;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import javax.servlet.ServletContext;
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import java.util.Enumeration;
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import java.util.TimerTask;
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/**
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* 防重放功能随机码清除
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*/
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@Component
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public class PreventTryTask extends TimerTask {
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@Autowired
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private ServletContext servletContext;
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@Override
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public void run() {
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//servletContext = ActionUtil.getApplication();
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//60秒前的记录,内存中application移除
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Enumeration<String> attributeNames = servletContext.getAttributeNames();
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long oneMinuteBefore = System.currentTimeMillis()-70*1000;
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while (attributeNames.hasMoreElements()){
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String attributeName = attributeNames.nextElement();
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if(attributeName.contains("randomStr_")){
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if(oneMinuteBefore>Long.parseLong((String) servletContext.getAttribute(attributeName.split("randomStr_")[1]))) {
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servletContext.removeAttribute(attributeName);
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servletContext.removeAttribute(attributeName.split("randomStr_")[1]);
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}
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}
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}
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}
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}
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