📄 showparameters.java
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//file: ShowParameters.javaimport java.io.*;import javax.servlet.ServletException;import javax.servlet.http.*;import java.util.Enumeration;public class ShowParameters extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { showRequestParameters( request, response ); } void showRequestParameters(HttpServletRequest request, HttpServletResponse response) throws IOException { response.setContentType("text/html"); PrintWriter out = response.getWriter( ); out.println( "<html><head><title>Show Parameters</title></head><body>" + "<h1>Parameters</h1><ul>"); for ( Enumeration e=request.getParameterNames( ); e.hasMoreElements( ); ) { String name = (String)e.nextElement( ); String value = request.getParameter( name ); if (! value.equals("") ) out.println("<li>"+ name +" = "+ value ); } out.close( ); }}⌨️ 快捷键说明
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