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如何在我的數據中獲得現有主鍵ID的值?我試圖選擇一個數據,但它沒有得到我當前表中的值。 當我嘗試搜索現有的記錄。它打印到文本框。另外,當我搜索一個不存在的記錄時,它仍然會打印到文本字段。我錯過了什麼嗎?如何在選擇使用存儲過程之後獲取主鍵值?
不存在的記錄
表
CREATE TABLE allsections_list
(
SECTION_ID INT PRIMARY KEY AUTO_INCREMENT,
SECTION_NAME INT VARCHAR(50)
)
存儲過程
CREATE PROCEDURE getSECTION_NAME (IN SECTION_NAME VARCHAR(50))
SELECT SECTION_NAME FROM allsections_list
DATA
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);
}
}
任何幫助或建議將感激!謝謝!
謝謝,我會讀這個。 – Francisunoxx