用于在access数据库中添加数据的Java代码工作不正常

我正在尝试使用此代码将数据添加到access数据库中。它没有显示任何错误，代码正在成功运行，但没有将值更新到数据库

代码：

---

但是数据库中的值不会更新

我看不到您在哪里执行数据库提交或关闭与数据库的连接。Put

System.out.println（con.getCatalog（））DriverManager.getConnection

之后立即执行code>。它向您展示了什么？@GilbertLeBlanc默认为自动提交，因此无需显式调用commit@GilbertLeBlanc您是编写伙伴我忘了放置con.close语句

String BS = null,DH = null,DL = null,PHV = null,AL = null;
    public static void main(String[] args) throws ClassNotFoundException {

        String Data_Input="OK DATA BS:10.1 AL:10.2 PHV:10.3 DH:10.4 DL:10.5";
        System.out.println("Original String as Data Input :"+Data_Input);
        Connection con;
       PreparedStatement st = null;

        //code to divide the string into substring

        try{
            String BS = null,DH = null,DL = null,PHV = null,AL = null;
            String[] ArrString=Data_Input.split("\\s+");
              for(int i=0;i<ArrString.length;i++){

                  String test=ArrString[i].toString();

                  //Testing Code

                  String[] Split_Data=test.split(":");
                  for(int k=0;k<Split_Data.length;k++){

                      String Data=Split_Data[k].toString();

                    // System.out.print("Second Value :"+Second);

                      //System.out.println("\tAfter Second Print :");

                      if(Data.equals("BS")){
                         System.out.println("We Finally Got BS :"+Split_Data[k+1].toString());
                         BS=Split_Data[k+1].toString();
                         //st.setString(1,BS);
                     }
                      if(Data.equals("AL")){
                         System.out.println("We Finally Got AL :"+Split_Data[k+1].toString());
                         AL=Split_Data[k+1].toString();
                         // st.setString(2,AL);
                     }
                       if(Data.equals("PHV")){
                         System.out.println("We Finally Got PHV :"+Split_Data[k+1].toString());
                          PHV=Split_Data[k+1].toString();
                         // st.setString(3,PHV);
                     }
                        if(Data.equals("DH")){
                         System.out.println("We Finally Got DH :"+Split_Data[k+1].toString());
                          DH=Split_Data[k+1].toString();
                           // st.setString(4,DH);

                     }
                         if(Data.equals("DL")){
                         System.out.println("We Finally Got DL :"+Split_Data[k+1].toString());
                          DL=Split_Data[k+1].toString();
                          //st.setString(5,DL);
                         }

                  }

                  System.out.print("Substring After Break :"+test);
                  System.out.println("\tNext Value :");

             }
              Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
              String demo="jdbc:odbc:Test";

             System.out.println("Database Initialization Succesfull");
             con=DriverManager.getConnection(demo); 
             st=con.prepareStatement("insert into Table1 values(?,?,?,?,?)");
             st.setString(1, BS);
             System.out.println("BS::"+BS);
             st.setString(2, AL);
             System.out.println("AL::"+AL);
             st.setString(3, PHV);
             System.out.println("PHV::"+PHV);
             st.setString(4, DH);
             System.out.println("DH::"+DH);
             st.setString(5, DL);
             System.out.println("DL::"+DL);
             st.executeUpdate();

Database Initialization Succesfull
BS::10.1
AL::10.2
PHV::10.3
DH::10.4
DL::10.5
Database Statements Executed Succesfully..!!!