将 "invalid" 值 'Residential' 转换为数据类型 int 时转换失败
Conversion failed when converting the "invalid" value 'Residential' to data type int
如何转换从结果集字符串中给出的数据。
我试图将下拉框 gui 显示为文本,但给它一个值 1 和 2
我希望它显示的下拉选项是正确的:
https://i.imgur.com/gDKAkDX.png
但我需要相应的实际值是 1 和 2
然后我需要将这些值放回只允许 int 的数据库 f 键中...
final ObservableList options = FXCollections.observableArrayList();
public void fillComboBox() {
Connection c;
try {
Connection conn = null;
Statement stmt = null;
String queryx = "Select CusType_ID, CusTypeName from CustomerType";
ResultSet jrs = c.createStatement().executeQuery(queryx);
while (jrs.next()) {
String custyID = jrs.getString("CusType_ID");
String custyN = jrs.getString("CusTypeName");
options.add(new MyObject(custyID,custyN));
typeBox.setItems(options);
}
} catch (SQLException e) {
e.printStackTrace();
}
}
String sql = "INSERT INTO Customer [CustomerType_ID]) VALUES" typeBox.getValue() +"')";
首先创建一个 class 用于在下拉列表(组合框)中存储 CusType_ID 和 CusTypeName
public class MyObject {
private String key;
private String value;
public MyObject(String key, String value) {
this.key = key;
this.text = value;
}
public String getKey(){
return key ;
}
@Override
public String toString() {
return value;
}
}
然后存储您请求的值
String queryx = "Select CusType_ID, CusTypeName from CustomerType";
ResultSet rs = c.createStatement().executeQuery(queryx);
while (rs.next()) {
int recordNumber = 1;
int recNumber =2;
String sx = rs.getString("CusTypeName");
String customerID = rs.getString("CusType_ID");
typeBox.addItem(new MyObject(customerID, sx));
}
最后,从所选项目中取回您的价值并将其存储在新的 sql
Object item = comboBox.getSelectedItem();
String value = ((MyObject)item).getKey();
String sql = "INSERT INTO Customer (CustomerType_ID) VALUES ("+
value +");" ;
如何转换从结果集字符串中给出的数据。 我试图将下拉框 gui 显示为文本,但给它一个值 1 和 2
我希望它显示的下拉选项是正确的: https://i.imgur.com/gDKAkDX.png
但我需要相应的实际值是 1 和 2
然后我需要将这些值放回只允许 int 的数据库 f 键中...
final ObservableList options = FXCollections.observableArrayList();
public void fillComboBox() {
Connection c;
try {
Connection conn = null;
Statement stmt = null;
String queryx = "Select CusType_ID, CusTypeName from CustomerType";
ResultSet jrs = c.createStatement().executeQuery(queryx);
while (jrs.next()) {
String custyID = jrs.getString("CusType_ID");
String custyN = jrs.getString("CusTypeName");
options.add(new MyObject(custyID,custyN));
typeBox.setItems(options);
}
} catch (SQLException e) {
e.printStackTrace();
}
}
String sql = "INSERT INTO Customer [CustomerType_ID]) VALUES" typeBox.getValue() +"')";
首先创建一个 class 用于在下拉列表(组合框)中存储 CusType_ID 和 CusTypeName
public class MyObject {
private String key;
private String value;
public MyObject(String key, String value) {
this.key = key;
this.text = value;
}
public String getKey(){
return key ;
}
@Override
public String toString() {
return value;
}
}
然后存储您请求的值
String queryx = "Select CusType_ID, CusTypeName from CustomerType";
ResultSet rs = c.createStatement().executeQuery(queryx);
while (rs.next()) {
int recordNumber = 1;
int recNumber =2;
String sx = rs.getString("CusTypeName");
String customerID = rs.getString("CusType_ID");
typeBox.addItem(new MyObject(customerID, sx));
}
最后,从所选项目中取回您的价值并将其存储在新的 sql
Object item = comboBox.getSelectedItem();
String value = ((MyObject)item).getKey();
String sql = "INSERT INTO Customer (CustomerType_ID) VALUES ("+
value +");" ;