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PODifficulty in passing text as parameter from android to jsp page
 

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  1. PODifficulty in passing text as parameter from android to jsp page
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    <p>I am trying to pass a text from the spinner. Actually the spinner contains the textx which I have fetched from the server side of my application. So what I am trying to do is that, as soon as I select text from the spinner, I want that string to be passed to the server side. So here i am passing the text to a function which can make a request to the JSP.</p> <p>Main part of the code(android)</p> <pre><code> categ = ((TextView) selectedItemView).getText().toString(); postData(categ); //Remaining section public void postData(categ) { String page="processing_pages/individual_phone_communicator.jsp?rom="+categ; result = ws.getWebData(page); if (result != null) plotData(); else alerter("null"); } </code></pre> <p>(It is returning a null value always.But when i am directly running the same query without any parameter and taking the value directly at the JSP page, it shows result) </p> <p>Now it will move to the JSP. </p> <pre><code>String hk=request.getParameter("rom"); </code></pre> <p>Now i am running a query like this:</p> <pre><code>sqlstatem="select first_name,latitude,longitude from tbluserdetails where user_id=(select user_id from tblindividual_job where jcat_id=(select jcat_id from tbljobcat where job_name='"+hk+"'))"; </code></pre> <p>I am expecting it to give back data in the form of json array. But instead it is showing an error. I tried entering the parameter directly from browser even. Sometimes, the page is displaying correct answer with above query. This makes me more confusing. But when i tried with numbers such as 1 or 2 from the eclipse:</p> <pre><code>String page="processing_pages/individual_phone_communicator.jsp?rom=2" </code></pre> <p>and modified the query by trying the exact word instead of 'hk' like this</p> <pre><code>int rom=Integer.parseInt(request.getParameter("romo")); if(rom==1) { sqlstatem="select first_name,latitude,longitude from tbluserdetails"; } else { sqlstatem="select first_name,latitude,longitude from tbluserdetails where user_id=(select user_id from tblindividual_job where jcat_id=(select jcat_id from tbljobcat where job_name='Blood donar'))"; } </code></pre> <p>it is running correctly. From browser also, it is running correctly when i pass integer as parameter. But i need it to be running by taking a text from the emulator as parameter.</p> <p>But when I try, like this:</p> <p>String page="processing_pages/individual_phone_communicator.jsp?rom=Blood donor"</p> <p>Then also i am getting null as result. What I assume is that, my JSP page is only taking integer parameters, I don't know why it is happening.</p> <p>I am using net beans for JSP. Kindly find me a solution for this issue. Kindly ignore if the question is childish, as i am just a beginner.</p>
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    1. COYou've there by the way a SQL injection hole. Use `PreparedStatement`: http://download.oracle.com/javase/tutorial/jdbc/basics/prepared.html
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