📄 showparamters.java

📁 JSP+oracle开发实例精粹》随书光盘

💻 JAVA

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import java.io.*; 
import javax.servlet.*; 
import javax.servlet.http.*; 
import java.util.*; 
public class ShowParamters extends HttpServlet { 
public void doGet(HttpServletRequest request, 
HttpServletResponse response) 
throws ServletException, IOException { 
response.setContentType("text/html"); 
PrintWriter out = response.getWriter( ); 
String title = "ThreeParams"; 
out.println("<HTML>"+ 
"<BODY BGCOLOR=\"#FDF5E6\">\n" + 
"<H1 ALIGN=CENTER>" + title + "</H1>\n" + 
"<TABLE BORDER=1 ALIGN=CENTER>\n" + 
"<TR BGCOLOR=\"#FFAD00\">\n" + 
"<TH>Name<TH>Value"); 
Enumeration paramNames = request.getParameterNames( ); 
while(paramNames.hasMoreElements( )) { 
String paramName = (String)paramNames.nextElement( ); 
out.println("<TR><TD>" + paramName + "\n<TD>"); 
String[] paramValues = request.getParameterValues(paramName); 
if (paramValues.length == 1) { 
String paramValue = paramValues[0]; 
if (paramValue.length( ) == 0) 
out.print("<I>No Value</I>"); 
else 
out.print(paramValue); 
} else { 
out.println("<UL>"); 
for(int i=0; i<paramValues.length; i++) { 
out.println("<LI>" + paramValues[i]); 
} 
out.println("</UL>"); 
} 
} 
out.println("</TABLE>\n</BODY></HTML>"); 
} 
public void doPost(HttpServletRequest request, 
HttpServletResponse response) 
throws ServletException, IOException { 
doGet(request, response); 
} 
}

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