Question

我已经创建了一个JOptionPane.showInputDialog，以便在我的实现中有5个预定义的查询。但是当用户选择一个选项并点击＆＃34; ok＆＃34;按钮面板关闭。我希望当用户点击＆＃34;确定＆＃34;按钮，面板不会关闭但保持打开状态，以便用户可以根据需要选择其他查询。我如何改变＆＃34; ok＆＃34;按钮动作？有解决方案吗？我的代码如下：

...
String sparqlQueryString = new String();
String[] queryOptions = { "1. ...",
"2. ....",
"3. ...",
"4. ...",
5. ..."};

JPanel myPanel = new JPanel();        

String sparqlQueries = (String)JOptionPane.showInputDialog(null, myPanel, "Predefined SparQL Queries", JOptionPane.PLAIN_MESSAGE, null, queryOptions, queryOptions[0]);
switch(sparqlQueries){
        case "1. ...":
        sparqlQueryString = ...
        myCode
        break;
        case "2. ...":
        sparqlQueryString = ...
        myCode
        break;
        case "3. ...":
        sparqlQueryString = ...
        myCode
        break;
        case "4. ...":
        sparqlQueryString = ...
        myCode
        break;
        case "5. ...":
        sparqlQueryString = ...
        myCode
        break;

if(!sparqlQueryString.isEmpty()) {
        File finalResults = new File(args[1]);
            try (FileWriter fileWriter = new FileWriter(finalResults)) {
                StringBuilder results = new StringBuilder();

                Query query = QueryFactory.create(sparqlQueryString);
                QueryExecution qexec =     QueryExecutionFactory.sparqlService("http://localhost:8890/sparql", query, new PreemptiveBasicAuthenticator(new SimpleAuthenticator(virtuosoUserName, virtuosoPassword.toCharArray()), true));

                ResultSet resultSet = qexec.execSelect();
                List<String> columnNames = resultSet.getResultVars();
                while ( resultSet.hasNext() ) {
                    QuerySolution freqresult = resultSet.next();
                    int i = 0;
                    for(String var : columnNames)
                    {
                        i=i+1;
                        results.append(var).append(":");

                        if (freqresult.get(var) == null)
                            results.append("{null}");
                        else if (freqresult.get(var).isLiteral()) {
                             results.append(freqresult.getLiteral(var).toString().substring(freqresult.getLiteral(var).toString().lastIndexOf("#")+1)); 
                        }
                        else {
                            results.append(freqresult.getResource(var).toString().substring(freqresult.getResource(var).toString().lastIndexOf("#")+1));
                            //results.append(" ");
                        }
                        if(i!=columnNames.size()){
                            results.append(';');
                        }
                    }
                    results.append("\n");
                }
                int last = results.lastIndexOf("\n");
                if (last >= 0) { results.delete(last, results.length()); }
                //qexec.close();

                fileWriter.write(results.toString());
            }
    }

Answer 1

不要为此使用JOptionPane，而是使用非模态JDialog（JDialog API link），保持打开状态，因为作为JDialog，您可以完全控制何时或是否关闭。这些很容易创建，类似于JFrame，除了在构造函数中，您传入父窗口，通常是JFrame，标题和ModalityType，这里是ModalityType.MODELESS。

如何在JOptionPane.showInputDialog中更改ok按钮操作

1 个答案: