在收到请求之前我需要验证头 . 我发现tomcat阀门可以帮助它 . 我按照这些步骤但没有调用阀门：
- 制作一个maven项目并在其中执行此代码 .
package cz.ValveTest;
import java.io.IOException;
import java.util.Enumeration;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.Response;
import org.apache.catalina.valves.ValveBase;
public class ProcessingValve extends ValveBase {
private static final Logger logger = Logger.getLogger(ProcessingValve.class.getName());
@Override
public void invoke(Request request, Response response) throws IOException,
ServletException {
HttpServletRequest httpServletRequest = request.getRequest();
Enumeration<String> headerNames = httpServletRequest.getHeaderNames();
logger.info("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");
while (headerNames.hasMoreElements()) {
String header = headerNames.nextElement();
logger.log(Level.INFO, "Header --> {0} Value --> {1}", new Object[]{header, httpServletRequest.getHeader(header)});
}
getNext().invoke(request, response);
}
}
-
make jar并将jar放在tomcat / lib文件夹中
-
在server.xml中添加此行
<valve className="cz.ValveTest.ProcessingValve"/>
-
重启tomcat .
-
现在我用 Headers 点击我的网络服务：
期待：100-继续
但是使用这个配置和代码阀没有在http命中调用 . 如果有人知道为什么没有调用tomcat阀门请帮忙 .
1 回答
server.xml中的标签是 case sensitive .所以试试这个：