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29 lines
868 B
29 lines
868 B
package filter;
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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 java.io.IOException;
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@WebFilter(filterName = "OnlineCheck",urlPatterns = "/home/*")
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public class OnlineCheck implements Filter {
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public void destroy() {
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}
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public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
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HttpServletRequest request = (HttpServletRequest) req;
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if(request.getSession().getAttribute("user")==null){
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HttpServletResponse response = (HttpServletResponse) resp;
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response.sendRedirect("/login.jsp");
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return;
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}
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chain.doFilter(req, resp);
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}
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public void init(FilterConfig config) throws ServletException {
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}
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}
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