multivalued attribute?

multivalued attribute?

edit.jsp
<%
String accno=request.getParameter("acc");
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
java.sql.Connection con=java.sql.DriverManager.getConnection("jdbc:odbc:dms","smartlib","smartlib");
java.sql.Statement stmt1=con.createStatement();
java.sql.ResultSet rs1=stmt1.executeQuery("SELECT a.title,e.author(e.author1,e.author2,e.author3),a.noofcopies,a.category,b.edition,c.pubyear,d.price FROM bookdet a, edition b, publication c, price d,author_det e where (a.accno='"+accno+"') and (a.accno=b.accno and a.accno=c.accno and a.accno=d.accno and a.accno=e.accno)");

%>
<% while(rs1.next()) { %>
<form name="ed" action="http://localhost:8080/examples/jsp/update.jsp" method="post">
<%

while(rs1.next())
{ %>
<table>
<tr> <td> title </td> <td><input type="text" name="title"value=" &lt;%=rs1.getString(1)%>" /> </td> </tr>
<tr> <td> author1 </td> <td><input type="text" name="author1"value=" &lt;%=rs1.getString(2)%>" /> </td> </tr>
<tr> <td> author2 </td> <td><input type="text" name="author2"value=" &lt;%=rs1.getString(3)%>" /> </td> </tr>
<tr> <td> author3 </td> <td><input type="text" name="author3"value=" &lt;%=rs1.getString(4)%>" /> </td> </tr>
<tr> <td> no<em>of</em>copies</td> <td> <input type="text" name="copies" value="&lt;%= rs1.getString(5)%>" /> </td> </tr>
<tr> <td> category </td> <td> <input type="text" name="cat"value="&lt;%=rs1.getString(6)%>" /> </td> </tr>
<tr> <td> edition</td> <td><input type="text" name="edition" value="&lt;%=rs1.getString(7)%>" /> </td> </tr>
<tr> <td> pub<em>year</td> <td><input type="text" name="pub</em>year"value="&lt;%=rs1.getString(8)%>" /> </td> </tr>
<tr> <td> price</td> <td><input type="text" price="price" value="&lt;%=rs1.getString(9)%>" /></td> </tr>


<%} %></p>

<tr><td><input type="submit" value="submit" /> </td> <td> <input type="reset" value="reset" /></td></tr>
</table>
<input type=hidden name="acc" value="<%=accno%>">
</form>

<%

con.close();

} catch(ClassNotFoundException cnfe){
out.println(cnfe.getMessage());

} catch(java.sql.SQLException sqle){
out.println(sqle.getMessage());
}

%>


update.jsp
<% String accno=request.getParameter("acc");
String title=request.getParameter("title");
String copies=request.getParameter("copies");
String cat=request.getParameter("cat");
String edition=request.getParameter("edition");
String pubyear=request.getParameter("pubyear");
String price=request.getParameter("price");
String author1=request.getParameter("author1");
String author2=request.getParameter("author2");
String author3=request.getParameter("author3");
try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
java.sql.Connection con=java.sql.DriverManager.getConnection("jdbc:odbc:dms","smartlib","smartlib");
java.sql.Statement stmt1=con.createStatement();
java.sql.Statement stmt2=con.createStatement();
java.sql.Statement stmt3=con.createStatement();
java.sql.Statement stmt4=con.createStatement();
java.sql.Statement stmt5=con.createStatement();
java.sql.Statement stmt6=con.createStatement();
java.sql.Statement stmt7=con.createStatement();
java.sql.Statement stmt8=con.createStatement();
java.sql.Statement stmt9=con.createStatement();
stmt1.executeUpdate("UPDATE book_det Set title='"+title+"' where accno='"+accno+"'");
stmt2.executeUpdate("UPDATE bookdet Set noof_copies="+copies+" where accno='"+accno+"'");
stmt3.executeUpdate("UPDATE book_det Set category='"+cat+"' where accno='"+accno+"'");
stmt4.executeUpdate("UPDATE edition Set edition='"+edition+"' where accno='"+accno+"'");
stmt5.executeUpdate("UPDATE publication Set pubyear='"+pubyear+"' where accno='"+accno+"'");
stmt6.executeUpdate("UPDATE price Set price="+price+" where accno='"+accno+"'");
stmt7.executeUpdate("UPDATE author_det Set author1="+author1+" where accno='"+accno+"'");
stmt8.executeUpdate("UPDATE author_det Set author2="+author2+" where accno='"+accno+"'");
stmt9.executeUpdate("UPDATE author_det Set author3="+author3+" where accno='"+accno+"'");
con.close(); } catch(ClassNotFoundException cnfe){cnfe.printStackTrace();
} catch(java.sql.SQLException sqle){
sqle.printStackTrace();
}
%>



View Answers

March 5, 2011 at 12:32 PM

JSP edit multiple values

1)editapplication.jsp:

<%@ page import="java.sql.*" %>
<html>
<form name="form"  method="post" action="retcheck.jsp">
 <table border="1">
<tr><th></th><th>Name</th><th>Address</th></tr>
<%
int i=0;
Connection con = null;
String url = "jdbc:mysql://localhost:3306/";
String db = "test";
String driver = "com.mysql.jdbc.Driver";
String userName ="root";
String password="root";

int sumcount=0;
Statement st;
try{
Class.forName(driver).newInstance();
con = DriverManager.getConnection(url+db,userName,password);
String query = "select * from data";
st = con.createStatement();
ResultSet rs = st.executeQuery(query);
%>
<%
while(rs.next()){
%>
<tr><td><input type="checkbox" value="<%= rs.getString("id")%>" name="check">
<td><%=rs.getString("name")%></td>
<td><%=rs.getString("address")%></td>
</tr>
<%
}
%>
<%
}
catch(Exception e){
e.printStackTrace();
}
%>
</table>
<input type="submit" value="Edit">
</form>
</html>

2)retcheck.jsp:

<%@ page import="java.sql.*" %>

<%
String id[]=request.getParameterValues("check");
%>
<form name="form" method=post action="up.jsp">
<table border=1>
<tr><th></th><th>Name</th><th>Address</th></tr>
<%
Connection conn = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root", "root");
ResultSet rs = null;
Statement st=null;
st=conn.createStatement();
for(int a=0;a<id.length;a++){
rs = st.executeQuery("select * from data where id='"+id[a]+"'");
while(rs.next()){ 
    %>
<tr>
<td><input type="hidden" name="id" value="<%=rs.getString("id")%>"></td>
    <td><input type="text" name="name" value="<%=rs.getString("name")%>"></td>
    <td><input type="text" name="address" value="<%=rs.getString("address")%>"></td></tr>
      <%
}
}
%>
</table>
<input type="submit" value="update">
</form>

3)up.jsp:

<%@ page import="java.sql.*" %>
<%
String id[]=request.getParameterValues("id");
String name[]=request.getParameterValues("name");
String add[]=request.getParameterValues("address");
Connection conn = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root", "root");

Statement st=null;
st=conn.createStatement();
for(int i=0;i<id.length;i++){
st.executeUpdate("update data set  name='"+name[i]+"',address='"+add[i]+"' where id='"+id[i]+"'");
out.println("Data is updated successfully");
}
response.sendRedirect("editapplication.jsp");
%>









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