JSP：如何讀取HTTP POST/GET請求的內容

Question

如何讀取將讀取HTTP POST內容並存儲內容的JSP。

Answer 1

將帶有以下內容的jsp寫入文件。它會記錄HTTP請求的內容。

<%@page import="javax.servlet.ServletInputStream,javax.servlet.http.HttpServletRequest"%> 
<%@page import="java.io.BufferedReader,java.io.InputStreamReader"%> 
<%@page import="java.io.PrintWriter"%> 
<%@page import="java.util.Enumeration"%> 
<%@page import="java.util.Map"%> 
<% 

     BufferedReader br = request.getReader(); 
     String prefix="payment_intimation"; 

     PrintWriter writer = new PrintWriter("yourfilenamewithpath", "UTF-8"); 
     String line = ""; 
     writer.println("----META DATA-----"); 
     writer.println("Remote Address:"+request.getRemoteAddr()); 
     writer.println("Content Length:"+request.getContentLength()); 
     writer.println("Content Type:"+request.getContentType()); 
     writer.println("Character encoding:"+request.getCharacterEncoding()); 
     writer.println("Auth Type:"+request.getAuthType()); 
     writer.println("Context Path:"+request.getContextPath()); 
     writer.println("Local Address:"+request.getLocalAddr()); 
     writer.println("Local Name:"+request.getLocalName()); 
     writer.println("Local Port:"+request.getLocalPort()); 
     writer.println("Method:"+request.getMethod()); 
     writer.println("Path Info:"+request.getPathInfo()); 
     writer.println("Path Transalated:"+request.getPathTranslated()); 
     writer.println("Protocol:"+request.getProtocol()); 
     writer.println("QueryString:"+request.getQueryString()); 
     writer.println("Remote Host:"+request.getRemoteHost()); 
     writer.println("Remote User:"+request.getRemoteUser()); 
     writer.println("Requested Session:"+ request.getRequestedSessionId()); 
     writer.println("Request URI:"+ request.getRequestURI()); 
     writer.println("Request URL:"+ request.getRequestURL()); 
     writer.println("Scheme:"+ request.getScheme()); 
     writer.println("ServerName:"+ request.getServerName()); 
     writer.println("ServerPort:"+ request.getServerPort()); 
     writer.println("Servlet Path:"+ request.getServletPath()); 
     writer.println("----HEADER-----"); 
     Enumeration<String> headerNames = request.getHeaderNames(); 
     while (headerNames.hasMoreElements()) { 
      String headerName = headerNames.nextElement(); 
      Enumeration<String> headers = request.getHeaders(headerName); 
      while (headers.hasMoreElements()) { 
        String headerValue = headers.nextElement(); 
        writer.println(headerName+":"+headerValue); 
      } 
     } 
     writer.println("----PARAMETERS-----"); 
     Map<String, String[]> parameters = request.getParameterMap(); 
     for(String parameter : parameters.keySet()) { 
       String[] values = parameters.get(parameter); 
       for (int i=0; i < values.length;i++) { 
        writer.println(parameter+":"+values[i]); 
       } 
     } 
writer.println("----BODY-----"); 
     while((line = br.readLine()) != null) { 
       writer.println(line); 
     } 
    writer.close(); 
%>