ServletConfig

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ServletConfig代码

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package com.xiaoguan.learn;

import jakarta.servlet.*;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;

public class UserServlet extends GenericServlet {
    @Override
    public void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {
        ServletConfig config=this.getServletConfig();
        System.out.println("GenericServlet!!!");
        servletResponse.setContentType("text/html");
        PrintWriter out=servletResponse.getWriter();
        out.print("<h4>测试</h4>");
        Enumeration<String> initParameterNames = config.getInitParameterNames();
        while(initParameterNames.hasMoreElements()){
            String parameterName=initParameterNames.nextElement();
            out.print(parameterName);
            out.print("<br>");
        }
        String driver=config.getInitParameter("driver");
        out.print(driver);
    }
}