java jdbc连接 - 结果集输出问题

Question

I am currently trying to implement a jdbc connection that returns all the data in a table when i "search" for anything that matches the input with '%input%'.

eg ResultSet rs4 = stm4.executeQuery("select imageTime from image_data where imageName like '%" + value3 + "%' or imageTime like '%" + value3 + "%' or imageLocation like '" + value3 + "'" );

i am trying to return ALL the rows in the result set as search results. but if i have Resultset.next commanded when there is no more rows to go to it causes the following results sets to all null,....

if anything id love a method to output the entire result set, thanks.

EDIT editing the question: to be more direct; i need a way to get every piece of data from each row in each containing column of the result set. so i can output it. This is my attempt of this below.

rs4 = a Resultset as declared below.

here is my code;

if(name_time_location == 1)
        {                
            String value3=searchInput.getText();//Sets the search Input as value3


            // selecting the cominbation from table, that match input options                               
            try{
                con = DriverManager.getConnection("jdbc:mysql:blah blah");

                // Query the database for the correct username and passord                    
                Statement stm3 = con.createStatement();  
                Statement stm4 = con.createStatement();
                Statement stm5 = con.createStatement();


                //queries database for password from input username 
                ResultSet rs3 = stm3.executeQuery("select imageName from image_data    where imageName like '%" + value3 + "%' or imageTime like '%" + value3 + "%' or imageLocation like '" + value3 + "'" );
                //ResultSetMetaData rsmd = rs3.getMetaData();
                //stm3.setFetchSize(5);
                //rs3.last();
                //int numberOfRows = rs3.getRow();


                //String[] resultList; 
                //resultList = new String[numberOfRows];
                // Fetch each row from the result set
                rs3.beforeFirst();
                while(rs3.next())
                {
                    imageSearchResult1 = rs3.getString(1); 
                    rs3.next();
                    imageSearchResult11 = rs4.getString(1);
                    rs3.next();
                    imageSearchResult12 = rs4.getString(1);
                    rs3.next();
                    imageSearchResult13 = rs4.getString(1);
                    rs3.next();
                    imageSearchResult14 = rs4.getString(1); 
                }rs3.close();

            }catch (Exception e)
            {
                    //System.out.println("Exception: " + e + "");
            }

            System.out.println("Search Results: \nName: " + imageSearchResult1 + "         Time stamp: " + imageSearchResult2 + "   Location: " + imageSearchResult3 + "\n" +
                    "Name: " + imageSearchResult11 + "   Time stamp: " + imageSearchResult21 + "   Location: " + imageSearchResult31 + "\n" + 
                    "Name: " + imageSearchResult12 + "   Time stamp: " + imageSearchResult22 + "   Location: " + imageSearchResult32 + "\n" +
                    "Name: " + imageSearchResult13 + "   Time stamp: " + imageSearchResult23 + "   Location: " + imageSearchResult33 + "\n" +
                    "Name: " + imageSearchResult14 + "   Time stamp: " + imageSearchResult24 + "   Location: " + imageSearchResult34 + "\n" );

Answer 1

I think you can achieve the same thing by modifying the query and instead of creating 3 queries, get the 3 values in the same query as:

select imageName,imageLocation,imageTime from .....

Then use this query to generate the ResultSet and get the three values as rs.getType(1),rs.getType(2),rs.getType(3) .

In the same while(rs.next()) loop, you can print the data that you want to print.