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09.19.2008 at 12:57AM PDT, ID: 23745164
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8.2

how do I display resultsets form multiple databases in single jtable

Asked by jwilli2 in MySQL Server, Java Programming Language, New to Java Programming

Tags:

Hello folks.
I have developed a little program that, using an array of  multiple mysql databases, I can choose one, create a query and get the result set displayed.
All databases have the same structure, just different locations, different users and database names.
I have achieved the wanted results using php (even got it to print to excel...), but now I am forced to recreate the program purely in java (so only a .jar file is needed to run).  No web interface possible.

The question that I have is:
1. How do I go through the entire list of sites (about 70 different sites in the list) and query each database placing the resultset if (rs !=null) into a temporary holder?
My guess is something like this:
...
ResultSet rs = stmt.executeQuery(query);
            ResultsModel model = new ResultsModel(rs);
            if (model.getRowCount() > 0) {
                 rsHolderVector.add(rs);
...

2. If this is correct, how do I go about filling up the table using the data from all result sets?Start Free Trial 
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private String[] siteNames = {
"Please select a site", "localhost", "ALL","AALBORG","AARHUS","VEJLE" ...
    };
siteList.setModel(new javax.swing.DefaultComboBoxModel(siteNames));
 
private void siteListActionPerformed(java.awt.event.ActionEvent evt) {
        location = siteList.getSelectedItem().toString();
        siteList.setSelectedIndex(0);
        ConnectionStatusField.setText("No Connection");
 
        if (location.equalsIgnoreCase("AALBORG")) {
            processSiteInfo("111.111.111.111", "root", "", "pizza");
        } else if (location.equalsIgnoreCase("ALL")) {
            runAll();
        } else if (location.equalsIgnoreCase("localhost")) {
            processSiteInfo("localhost", "root", "", "pizza");
        } else if (location.equalsIgnoreCase("AARHUS")) {
            processSiteInfo("111.111.111.112", "msys", "msys", "msys");
        }
...}
 
public void processSiteInfo(String ip, String userName, String pass, String DB_Name) {
 
        try {
url = "jdbc:mysql://" + ip + "/" + DB_Name + "?user=" + userName + "&password=" + pass;
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection(url, userName, pass);
Statement stmt = con.createStatement();
String query = "select This,That,And,The,Other from " + DB_Name + ".syslog where This='XXX' and That='YYYY' and (The='ZZZZ' or The='') order by Other DESC";
 
            ResultSet rs = stmt.executeQuery(query);
            ResultsModel model = new ResultsModel(rs);
            if (model.getRowCount() > 0) {
                jTable1.setModel(model);
                siteList.setSelectedIndex(0);
            } else {
               jTable1.setModel(new javax.swing.table.DefaultTableModel(
                        new Object[][]{
                            {null, null, null, null},
                            {null, null, null, null},
                            {null, null, null, null},
                            {null, null, null, null}
                        },
                        new String[]{
                            "No Data", "For", "This", "Site"
                        }));
        
            }
            rs.close();
            stmt.close();
            con.close();
        } catch (Exception exc) {
           jTable1.setModel(new javax.swing.table.DefaultTableModel(
                    new Object[][]{
                        {null, null, null, null},
                        {null, null, null, null},
                        {null, null, null, null},
                        {null, null, null, null}
                    },
                    new String[]{
                        "Connection Error", "For", "This", "Site"
                    }));
        }
    }
 
Keywords: how do I display resultsets form multipl…
Title
1 Moving ResultSet to a JTable
2 ResultSet into JTable
3 Vertical Resultset to Horizontal Resultset
4 ResultSets
5 MySQL returning unexpected result..
6 resultset navigation
 
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[+][-]09.23.2008 at 07:44AM PDT, ID: 22549949

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[+][-]10.09.2008 at 06:20AM PDT, ID: 22678048

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[+][-]10.09.2008 at 06:21AM PDT, ID: 22678063

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[+][-]10.09.2008 at 12:53PM PDT, ID: 22681815

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About this solution

Zones: MySQL Server, Java Programming Language, New to Java Programming
Tags: java, mysql
Sign Up Now!
Solution Provided By: contactkarthi
Participating Experts: 1
Solution Grade: A
 
 
[+][-]10.12.2008 at 10:56PM PDT, ID: 22700348

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