package com.basic.analy.filter;
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import com.basic.analy.utils.HttpUtil;
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import com.basic.analy.utils.RequestUtil;
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import org.apache.log4j.Logger;
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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.*;
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import javax.servlet.annotation.WebFilter;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import java.io.IOException;
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@Component //必须加，让springboot扫描的到
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@WebFilter(urlPatterns = "/*", filterName = "tokenFilter")
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public class TokenFilter implements Filter {
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@Autowired
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private HttpUtil httpUtil;
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private Logger log = Logger.getLogger(TokenFilter.class);
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@Override
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public void init(FilterConfig filterConfig) throws ServletException {
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log.info("过滤器初始化");
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}
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@Override
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public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
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HttpServletRequest request = (HttpServletRequest)servletRequest;
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HttpServletResponse response = (HttpServletResponse)servletResponse;
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String token= RequestUtil.getTokenByParam();
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String userName = httpUtil.doGet(token);
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HttpSession session = request.getSession();
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session.setAttribute("userName",userName);
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filterChain.doFilter(servletRequest, servletResponse); //表示放行，进行下一个操作，往下没有拦截链的话就进入该进的资源或者controller
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/*if(userName!=null&&!"".equals(userName)){
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log.info("当前用户为"+userName+" 是合法用户，可以放行！！");
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}else{
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log.info("不是合法用户，不能放行！！");
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}*/
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}
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@Override
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public void destroy() {
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log.info("过滤器销毁");
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}
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}
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