Question

这个场景的最佳解决方案是什么：我在Netbeans中实现了基于SOAP的Web服务，客户端应该点击多个复选框，然后将这些复选框发送到服务器并存储。假设我的webservice有这些复选框，可以选择全部或部分：

种族： 1.Caucasian 2.South-Est Asian 3.南亚 4.African 5.其他

在同一个网络服务的另一部分，我实现了与

相关的复选框

性别： 1.Male 2.Female

如下所示，可以选择其中一个或两个，但对于种族部分而言，解决方案看起来非常复杂，我还有其他部分甚至更多的复选框！

客户端代码：

     private void salvaActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
           disease=malattia.getText();
           etastr=eta.getText();
           age=java.lang.Integer.parseInt(etastr);
           description=descrizione.getText();

         //Here i'm initiating the array using sexint as the dimension
         sexarra=new String[sexint];
        if(sexint==1)
        sexarra[0]=sexone;
        else if(sexint==0)
            JOptionPane.showMessageDialog(null, "Bisogna specificare     almeno un valore del campo sesso", "Errore", JOptionPane.ERROR_MESSAGE);
        else{
            sexarra[0]=sexone;
            sexarra[1]=sextwo;}


         // I define the parameters and afterwards send them to server
          Vector parametri = new Vector();
                  parametri.addElement(new Parameter("malattia", String.class, disease, null));
                 parametri.addElement(new Parameter("age", int.class, age, null));
                 parametri.addElement(new Parameter("descrizione", String.class, description, null));
                    parametri.addElement(new Parameter("sexarra",String[].class, sexarra, null));



       //Code related to calculating sexint which is used above as the dimension to array


     private void femaleActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:

        if(female.isSelected()){
            if(sexint==0){
              sexint++;
              sexone=female.getText();

            }

            else if(sexint==1){
            sexint++;

            sextwo=female.getText();
            }
            else
            sexint--;
        }
        }                                       

        private void maleActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
              if(male.isSelected()){
            if(sexint==0){
              sexint++;
              sexone=male.getText();

            }

            else if(sexint==1){
            sexint++;

            sextwo=male.getText();
            }
            else
            sexint--;
        }
        }

与服务器端相关的代码：

       public String aggiungi_malattia(String malattia, int eta, String descrizione, String[] sexarra) {
                String ris = "no";
                String q = null, w = null;
                String errore = connetti();

               if(sexarra.length == 2){
         q = "INSERT INTO malattia (nome, eta, descrizione, sesso) "
                    + "VALUES ('" + malattia + "','" + eta + "','" + descrizione + "','" + sexarra[0] + "')";
         w="INSERT INTO malattia (nome, eta, descrizione, sesso) "
                    + "VALUES ('" + malattia + "','" + eta + "','" + descrizione + "','" + sexarra[1] + "')";
               }
         {
          q = "INSERT INTO malattia (nome, eta, descrizione, sesso) "
                    + "VALUES ('" + malattia + "','" + eta + "','" + descrizione + "','" + sexarra[0] + "')";

谢谢大家的时间和精力！

Answer 1

创建一个列表或数组，以维护类级别所选项目（字符串）的列表。

List<String> selectedEthnicities = new ArrayList();

您应该从将多个复选框转换为复选框数组开始，例如：

 JCheckBox[] ethnicities = new JCheckBox[5];
 ethnicities[0] = new JCheckBox("USA"); 
 ethnicities[1] = new JCheckBox("Brazil");
 ethnicities[2] = new JCheckBox("Mexico");
 ethnicities[3] = new JCheckBox("Canada");

然后您可以在循环框中添加ItemListener：

for(int i=0; i< ethnicities .length; i++) {
    ethnicities [i].addItemListener(new EthnicityItemListener(selectedEthnicities ));
}

请注意，您已将selectedEthnicities数组列表传递给项侦听器。现在，EthnicityItemListener项侦听器的实现可能如下所示：

   private class EthnicityItemListener implements ItemListener {
        ArrayList selectedList;
        private EthnicityItemListener(ArrayList<String> selectedEthnicities) {
            this.selectedList = selectedEthnicities;
        }

        @Override
        public void itemStateChanged(ItemEvent e) {
            //add or remove selected chk box text to the list based on 
            //selection state.
            if(e.getStateChange() == ItemEvent.SELECTED){
                this.selectedList.add(((JCheckBox)e.getSource()).getText());
            }else {
                this.selectedList.remove(((JCheckBox)e.getSource()).getText());
            }
            System.out.println(selectedList);
        }
    }

可以循环类变量selectedEthnicities来创建SQL语句。这样就可以减少很多不必要的代码复杂性。

应该如何将多个复选框的值传递给服务器

1 个答案: