In the forum entry user David Newton told you to "Remove line 28."
Did you do as he suggested? You didn't respond to his suggestion. What he was trying to explain is that Struts should call setProductId() for you so that you have no need to mess about with Request parameters, etc. If you are determined to extract the productId value from the Request URL, then have a look at this method: http://java.sun.com/javaee/5/docs/api/javax/servlet/http/HttpServletRequest.html#getQueryString() But there should be no need for it. On 28/05/2009 11:41, "Prashant Singh" <prashantk.si...@yahoo.co.in> wrote: Hi Nils, this is what I have tried to do till today. http://www.coderanch.com/t/446930/Struts/transfer-productID-from-url-action Sincerely, Prashant --- On Thu, 28/5/09, Nils-Helge Garli Hegvik <nil...@gmail.com> wrote: From: Nils-Helge Garli Hegvik <nil...@gmail.com> Subject: Re: how to get productID from the url into action class. To: "Struts Users Mailing List" <user@struts.apache.org> Date: Thursday, 28 May, 2009, 3:59 PM If you take a step back, and remove what you have tried to do now, what did you try, and what didn't work? Nils-H On Thu, May 28, 2009 at 12:22 PM, Prashant Singh <prashantk.si...@yahoo.co.in> wrote: > Hi Nils, > > Please pardon me if I am appearing silly but I 've been trying to get the > productID from the jsp to the action class for 3 days without any luck. > > I have got out list of products from the database and I have displayed them > on a jsp using struts 2 tags . > > Now what I want to do is to have a all the products appear as hyperlinks so > that when I click on the products its going to show all the suppliers > associated with the products. So i've tried to create a code as follows: > > <s:iterator value="productDetail" > > <tr><td><a href="showprodsuppliers.action?productID=<s:property > value="productID"/>"> > <s:property value="productName"/> > </a></td></tr> > </s:iterator> > > the action showprodsuppliers is mapped to the action class I have posted in > the last email. > > this is generating a url as follows: > http://localhost:8080/Astralpharma1/astralpharma/astralpharma/showprodsuppliers.action?productID=1 > > I just need to retrieve the productID from the url. thats it > > Please let me know how so I do that in Struts 2 > > Thanks > Prashant > > --- On Thu, 28/5/09, Nils-Helge Garli Hegvik <nil...@gmail.com> wrote: > > > From: Nils-Helge Garli Hegvik <nil...@gmail.com> > Subject: Re: how to get productID from the url into action class. > To: "Struts Users Mailing List" <user@struts.apache.org> > Date: Thursday, 28 May, 2009, 3:22 PM > > > When I think of it, that doesn't make any sense either... Isn't the > product id set as a property on your action? > > Nils-H > > 2009/5/28 Nils-Helge Garli Hegvik <nil...@gmail.com>: >> Um... What exactly are you trying to do here? Do you just need the product >> id from the url string, or are you trying to fetch something from a >> different backend? If you just need it from the string, just use indexOf and >> substring. >> >> Nils-H >> >> On Thu, May 28, 2009 at 11:41 AM, Prashant Singh >> <prashantk.si...@yahoo.co.in> wrote: >>> >>> >>> >>> >>> Hi dear, >>> >>> I have been trying to read the productID from the url but it goes into an >>> infinite loop at point 1. I am posting the code below. Please help. >>> >>> >>> >>> >>> >>> >>> package net.astralpharma; >>> import java.io.*; >>> import com.opensymphony.xwork2.ActionContext; >>> import com.opensymphony.xwork2.ActionSupport; >>> import org.apache.struts2.ServletActionContext; >>> >>> import java.io.BufferedReader; >>> import java.io.IOException; >>> import java.net.URL; >>> import java.net.URLConnection; >>> import java.sql.*; >>> import java.util.*; >>> >>> import net.astralpharma.Connect; >>> import net.astralpharma.Product; >>> import net.astralpharma.Productdisplay; >>> >>> public class Showprodsuppliers extends ActionSupport >>> { >>> private String productID; >>> private String productName; >>> List<Supplier> supplierName = new ArrayList<Supplier>(); >>> >>> >>> public String execute() throws Exception{ >>> StringBuffer sb = new >>> StringBuffer("http://localhost:8080/Astralpharma1/astralpharma/astralpharma/showprodsuppliers.action?productID=1";); >>> >>> URL url = new URL(sb.toString()); >>> URLConnection urlConn = url.openConnection(); >>> urlConn.setUseCaches(true); >>> urlConn.setDoOutput(true); >>> urlConn.setDoInput(true); >>> System.out.println("reached point 1"); >>> >>> OutputStreamWriter osr = new >>> OutputStreamWriter(urlConn.getOutputStream()); >>> >>> BufferedReader br = new BufferedReader(new >>> InputStreamReader(urlConn.getInputStream())); >>> >>> String tempStr; >>> StringBuffer buffer = new StringBuffer(); >>> System.out.println("Reached point 2"); >>> >>> while((tempStr = br.readLine())!= null) >>> { >>> buffer.append(tempStr + "<br>\n"); >>> >>> } >>> br.close(); >>> >>> StringTokenizer st = new StringTokenizer(buffer.toString()); >>> ArrayList<String> output = new ArrayList<String>(); >>> System.out.println("reached point 3"); >>> while(st.hasMoreTokens()) >>> { >>> String server = st.nextToken(); >>> try{ >>> if(st.nextToken().contentEquals("productID")); >>> { >>> productID=st.nextToken().valueOf("productID"); >>> System.out.println("Value of productID" + productID); >>> } >>> } >>> catch(Exception e) >>> { >>> System.out.println("Exception" + e.getMessage()); >>> } >>> } >>> System.out.println("Reached point 4"); >>> >>> Connect connect = new Connect(); >>> Connection con = connect.useConnection(); >>> String query="Select suppliername from supplier_proddetails >>> where productid=?"; >>> PreparedStatement stat = con.prepareStatement(query); >>> stat.setString(1, productID); >>> System.out.println(stat); >>> ResultSet rs = stat.executeQuery(); >>> System.out.println("rs"+ rs); >>> while(rs.next()) >>> { >>> System.out.println("inside while"); >>> supplierName.add(new >>> Supplier((rs.getString("supplierName")))); >>> System.out.println("item added successfully"); >>> } >>> return "success"; >>> } >>> >>> public List<Supplier> getSupplierName() { >>> return supplierName; >>> } >>> >>> public void setSupplierName(List<Supplier> supplierName) { >>> this.supplierName = supplierName; >>> } >>> >>> public String getProductID() { >>> return productID; >>> } >>> >>> public void setProductID(String productID ) { >>> this.productID = productID ; >>> } >>> >>> >>> public String getProductName() { >>> return productName; >>> } >>> >>> public void setProductName(String productName) { >>> this.productName = productName; >>> } >>> >>> } >>> >>> >>> >>> My front end jsp is as follows: >>> >>> <%@ taglib prefix="s" uri="/struts-tags" %> >>> >>> <html> >>> <head> >>> <title>Product Handled</title> >>> <link href="<s:url value="/css/main.css"/>" rel="stylesheet" >>> type="text/css"/> >>> </head> >>> >>> <body> >>> <table class="productTable"> >>> >>> >>> >>> <tr><td>This Page Gives the List of Products handled by Astral >>> Pharmaceuticals</td></tr> >>> >>> <tr><td>Products Handled</td></tr> >>> >>> <s:iterator value="productDetail" > >>> <tr><td><a href="showprodsuppliers.action?productID=<s:property >>> value="productID"/>"> >>> <s:property value="productName"/> >>> </a></td></tr> >>> </s:iterator> >>> >>> </table> >>> >>> >>> </body> >>> </html> >>> >>> The url i am generating is as follows: >>> http://localhost:8080/Astralpharma1/astralpharma/astralpharma/showprodsuppliers.action?productID=1 >>> I just need to get the productID from the url. >>> >>> Sincerely, >>> Prashant Singh >>> >>> >>> >>> >>> Explore and discover exciting holidays and getaways with Yahoo! 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