java - How to transfer data to another jsp -
i've built dynamic table has add button (that adds new row), delete button (deletes rows) , submit.
i wanna take information in table (i don't know how many rows user add) , process @ other jsp page.
this have far:
<script type="text/javascript"> var cb=new array(); var fn=new array(); var ln=new array(); var email=new array(); var i=1; function addrow(tableid){ var table=document.getelementbyid(tableid); var rowcount=table.rows.length; var row=table.insertrow(rowcount); var cell= row.insertcell(0); var element=document.createelement("input"); element.type="checkbox"; element.name="cb"+i+""; cell.appendchild(element); var cell1=row.insertcell(1); cell1.innerhtml=rowcount; var cell2=row.insertcell(2); var element2=document.createelement("input"); element2.type="text"; element2.name="fn"+i+""; cell2.appendchild(element2); var cell3=row.insertcell(3); var element3=document.createelement("input"); element3.type="text"; element3.name="ln"+i+""; cell3.appendchild(element3); var cell4=row.insertcell(4); var element4=document.createelement("input"); element4.type="email"; element4.name="email"+i+""; cell4.appendchild(element4); i++; } function delrow(tableid){ var table=document.getelementbyid(tableid); var rowcount=table.rows.length; for(i=0;i<rowcount;i++){ var row=table.rows[i]; var chkbox=row.cells[0].childnodes[0]; if(chkbox!==null && chkbox.checked===true) { table.deleterow(i); rowcount--; i--; for(var k=1;k<rowcount;k++){ var row=table.rows[k]; var cell=row.cells[1]; cell.innerhtml=k; } } } } function valck(){ } </script> </head> <body> <form name="form1" action="datashow.jsp" method="get"> <input type='button' value="add" onclick="addrow('tabledata');"> <input type='button' value="delete" onclick="delrow('tabledata');"> <input type='submit' value="submit" onclick="valck()"> <table id="tabledata" border="3"> <tr><td>chack</td><td>#</td><td>first name</td><td>last name</td><td>email</td></tr> <tr><td><input type='checkbox' name='cb0'></td><td>1</td><td><input type='text' name="fn0"><td><input type="text" name="ln0"></td><td><input type="email" name="email0"></td></tr> </table> </form> </body> </html> as can see have array every field. think if put data in arrays , send query string fine not :/ example, query 3 line table
the jsp code is:
<% string rows=request.getparameter("row"); int foo = integer.parseint("rows"); for(int i=0;i<=foo;i++){ user u =new user(); u.fn=request.getparameter("fn[i]"); u.ln=request.getparameter("ln0[i]"); u.email=request.getparameter("email[i]"); } %> i 500 error.
http status 500 - internal server error
type exception report
messageinternal server error
descriptionthe server encountered internal error prevented fulfilling request.
exception
org.apache.jasper.jasperexception: pwc6033: error in javac compilation jsp
pwc6197: error occurred @ line: 10 in jsp file: /datashow.jsp pwc6199: generated servlet error: cannot find symbol symbol: variable fn location: class org.apache.jsp.datashow_jsp
pwc6197: error occurred @ line: 29 in jsp file: /datashow.jsp pwc6199: generated servlet error: no suitable method found print() method javax.servlet.jsp.jspwriter.print(java.lang.object) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(java.lang.string) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(char[]) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(double) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(float) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(long) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(int) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(char) not applicable (actual , formal argument lists differ in length) method javax.servlet.jsp.jspwriter.print(boolean) not applicable (actual , formal argument lists differ in length)
note full stack traces of exception , root causes available in glassfish server open source edition 4.0 logs.
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