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error while submitting an http web request

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Posts: 47

posted 14 years ago

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I am trying to send a web request via http, below is my code and the error, I am not sure why there is an error on the outputstreamwriter. it seems i am doign the correct thing.

Can any one please help

<%@page import="java.io.OutputStreamWriter"%>
<%@ page import="java.io.UnsupportedEncodingException"%>
<%@ page import="java.net.URLEncoder"%>
<%@ page import="java.util.*"%>
<%@ page import="com.Test2" %>
<%@ page import="java.net.*" %>
<%@ page import="java.io.*" %>

<html>
  <head>
    <title>Recruiting Center Login</title>
    <meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type"/>
    <link rel="stylesheet" type="text/css" href="style.css"/>
    <script type="text/javascript" src="AutoLogin.js"></script>
    
<%!

public String LoginURL() throws UnsupportedEncodingException
	{
		HashMap data = new HashMap();
		Test2 test = new Test2();
		URL url = null;
		URLConnection conn = null;
		
		try {	
	    		url = new URL("https://www.abc.com/AutoLogin.aspx");
		}catch(MalformedURLException e) {
			e.printStackTrace();
		}
	    	
	    try {	
	   	 		 conn = url.openConnection();
	    } catch(IOException e) {
	    	e.printStackTrace();
	    }
	    
	    try {
	    	conn.setDoOutput(true);
	    } catch(IllegalStateException e) {
	    	e.printStackTrace();
	    }
	    
	    data = test.createMap(); 
		String Data = new String();
		
		Data = URLEncoder.encode("Company", "UTF-8") + "=" + URLEncoder.encode("MyCOmp", "UTF-8");
	    Data += "&" + URLEncoder.encode("CompanyPassword", "UTF-8") + "=" + URLEncoder.encode("2w!ag4", "UTF-8");
	    Data += "&" + URLEncoder.encode("UID", "UTF-8") + "=" + URLEncoder.encode("UID123", "UTF-8");
	    Data += "&" + URLEncoder.encode("ReturnURL", "UTF-8") + "=" + URLEncoder.encode("Y", "UTF-8");
	    Data += "&" + URLEncoder.encode("First_Name", "UTF-8") + "=" + URLEncoder.encode("TOSS", "UTF-8");
	    Data += "&" + URLEncoder.encode("Middle_Name", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("Last_Name", "UTF-8") + "=" + URLEncoder.encode("BOSS", "UTF-8");
	    Data += "&" + URLEncoder.encode("Email", "UTF-8") + "=" + URLEncoder.encode("toss@as.net", "UTF-8");
	    Data += "&" + URLEncoder.encode("ClientID", "UTF-8") + "=" + URLEncoder.encode("12345", "UTF-8");
	    Data += "&" + URLEncoder.encode("CLient_Name", "UTF-8") + "=" + URLEncoder.encode("TossCompany", "UTF-8");
	    Data += "&" + URLEncoder.encode("Address", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("Address2", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("City", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("State", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("Zip", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("Country", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("BusinessUnit", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("Phone", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
	    Data += "&" + URLEncoder.encode("Role", "UTF-8") + "=" + URLEncoder.encode("Internal Portal Client", "UTF-8");
	    		
		OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
		try {
	    	writer.write(Data);
	    	writer.flush();
		}catch(IOException e) {
			e.printStackTrace();
		}
		
	    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
	    String line = null;
	    try {
			    while ((line = rd.readLine()) != null) {
			     	line = line + line;
			    }
			    writer.close();
			    rd.close();  
	    } catch(IOException e) {
	    	e.printStackTrace();
	    }
		return line;
	}
%>    
    <script type="text/javascript">
      function Login() {
        AppWindow('<%=LoginURL()%>', 'RecruitingCenter');
        window.close();
      }
	    window.setTimeout(Login,25);
    </script>
  </head>
  <body>
    <form id="Form1" method="post">
    Please Wait, Logging in to the Recruiting Center
    </form>
  </body>
</html>

Aug 12, 2010 2:05:40 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 66 in the jsp file: /RecruitingCenterLogin.jsp
Unhandled exception type IOException
63: 	    Data += "&" + URLEncoder.encode("Phone", "UTF-8") + "=" + URLEncoder.encode("", "UTF-8");
64: 	    Data += "&" + URLEncoder.encode("Role", "UTF-8") + "=" + URLEncoder.encode("Internal Portal Client", "UTF-8");
65: 	    		
66: 		OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
67: 		try {
68: 	    	writer.write(Data);
69: 	    	writer.flush();

An error occurred at line: 74 in the jsp file: /RecruitingCenterLogin.jsp
Unhandled exception type IOException
71: 			e.printStackTrace();
72: 		}
73: 		
74: 	    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
75: 	    String line = null;
76: 	    try {
77: 			    while ((line = rd.readLine()) != null) {

Stacktrace:
	at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
	at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
	at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:443)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:314)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:163)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:402)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:249)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:267)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:245)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:260)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)

Lester Burnham

Rancher

Posts: 1337

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Isn't the error message pretty clear? The code throws an IOException, and the method neither catches it, nor declares that it throws it. That's a no-no.

By the way, keeping Java code in JSPs is really bad design. 10 years ago that might have been acceptable, but not today. That's what servlets and backing beans are for.

Bear Bibeault

Sheriff