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41 lines
1.1 KiB
41 lines
1.1 KiB
package filter;
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import java.io.IOException;
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import javax.servlet.Filter;
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import javax.servlet.FilterChain;
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import javax.servlet.FilterConfig;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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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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/**
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* 图书管理员过滤
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*/
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public class ManagerFilter implements Filter {
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public void destroy() {
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}
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public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
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throws IOException, ServletException {
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HttpServletRequest req = (HttpServletRequest) request;
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HttpSession session = req.getSession();
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if (session == null || session.getAttribute("manager") == null) {
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HttpServletResponse rep = (HttpServletResponse) response;
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rep.sendRedirect(req.getContextPath() + "/loginManager.html");
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}
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chain.doFilter(request, response);
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}
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public void init(FilterConfig fConfig) throws ServletException {
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}
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}
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