SampleFilter.java
package servlet.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
@WebFilter("/*")
public class SampleFilter implements Filter {
public SampleFilter() {
// TODO Auto-generated constructor stub
}
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
// place your code here
System.out.println("前処理");
// pass the request along the filter chain
chain.doFilter(request, response);
System.out.println("後処理");
}
public void init(FilterConfig fConfig) throws ServletException {
// TODO Auto-generated method stub
}
}
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