如何获取数据中现有主键ID的值?我试图选择一个数据,但它没有得到我当前表中的值。 当我尝试搜索现有记录时。它打印到文本字段。此外,当我搜索不存在的记录时,它仍然会打印到文本字段。我错过了什么吗?
非现有记录
表格
CREATE TABLE allsections_list
(
SECTION_ID INT PRIMARY KEY AUTO_INCREMENT,
SECTION_NAME INT VARCHAR(50)
)
已存储的程序
CREATE PROCEDURE getSECTION_NAME (IN SECTION_NAME VARCHAR(50))
SELECT SECTION_NAME FROM allsections_list
数据
CODE
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String searchSection = Section_SearchSection_Textfield.getText();
String searchSection_Name = Section_SectionName_TextField.getText();
int sectionId = 0;
if (searchSection.isEmpty())
{
JOptionPane.showMessageDialog(null, "Please fill up this fields");
}
else
try (Connection myConn = DBUtil.connect())
{
try (CallableStatement myFirstCs = myConn.prepareCall("{call getSECTION_NAME(?)}"))
{
myFirstCs.setString(1, searchSection);//Get value of Section_SearchSection_Textfield
myFirstCs.executeQuery();
try (ResultSet myRs = myFirstCs.executeQuery())
{
int resultsCounter = 0;
while (myRs.next())
{
String getSection_Name = myRs.getString(1);
sectionID = myRs.getInt("SECTION_ID");
Section_SectionName_TextField.setText(getSection_Name);//Set the value of text
Section_SectionName_TextField.setEnabled(true);//Set to enable
System.out.print(sectionID);
resultsCounter++;
}//end of while
}//end of resultset
}//end of callablestatement
}//end of connection
catch (SQLException e)
{
DBUtil.processException(e);
}
}
任何帮助或提示将不胜感激!谢谢!