springboot过滤器的使用
# SpringBoot 过滤器的使用
filter/LogFilter.java
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
@Component
public class LogFilter implements Filter {
private static final Logger LOG = LoggerFactory.getLogger(LogFilter.class);
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
// 打印请求信息
HttpServletRequest request = (HttpServletRequest) servletRequest;
LOG.info("----------- LogFilter 开始 ----------");
LOG.info("请求地址: {} {}", request.getRequestURL().toString(), request.getMethod());
LOG.info("远程地址: {}", request.getRemoteAddr());
long startTime = System.currentTimeMillis();
filterChain.doFilter(servletRequest, servletResponse);
LOG.info("----------- LogFilter 结束 耗时: {} ms ----------", System.currentTimeMillis() - startTime);
}
@Override
public void destroy() {
}
}
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测试结果
----------- LogFilter 开始 ----------
24.342 INFO com.xxx.wiki.filter.LogFilter :26 http-nio-8880-exec-2
请求地址: http://localhost:8880/test/list GET
24.343 INFO com.xxx.wiki.filter.LogFilter :27 http-nio-8880-exec-2
远程地址: 127.0.0.1
24.346 INFO com.xxx.wiki.filter.LogFilter :32 http-nio-8880-exec-2
----------- LogFilter 结束 耗时: 3 ms ----------
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上次更新: 2021/12/15, 22:43:45