原代碼:大量import省略,這里應該沒錯,因為不夠篇幅importjavapublicclassCreateTableTest{privateConnectioncon;privateStringurl;privateStringuser;privateStringpassword;publicst...

原代碼:大量import省略,這里應該沒錯,因為不夠篇幅

import java

public class CreateTableTest {

private Connection con;

private String url;

private String user;

private String password;

public static void main(String[] args)

{

CreateTableTest test = new CreateTableTest();

test.getProperty();

Connection con = test.getConnection();

test.createTable(con);

test.getStudent(con);

}

public void createTable(Connection con)

{

try

{

Statement st = con.createStatement();

String sql = "CREATE TABLE student(studentName varchar(12) NOT NULL," + "studentNumber varchar(10) NOT NULL," + "studentBirthday datetime NOT NULL , mainObject varchar(10) NULL," + "studentAddress varchar(30) NULL)";

System.out.println("輸出的SQL語句是:");

System.out.println(sql);

st.execute(sql);

sql = "insert into student values ('王成' , '200610091121' , '1977-6-10' , '英語' , '河北')";

st.executeUpdate(sql);

st.close();

}

catch(SQLException e)

{

e.printStackTrace();

}

}

public void getStudent(Connection con)

{

try

{

Statement st = con.createStatement();

String sql = "select * from student";

ResultSet rs = st.executeQuery(sql);

while(rs.next())

{

String name = rs.getString("studentName");

String number = rs.getString("studentNumber");

Date date = rs.getDate("studentBirthday");

String spe = rs.getString("mainObject");

String address = rs.getString("studentAddress");

System.out.println("\nstudentName: " + name + "\tstudentNumber: " + number + "\tstudentBirthday: " + date + "\tmainObject" + spe + "\tstudentAddress: " + address);

}

st.close();

con.close();

}

catch(SQLException e)

{

e.printStackTrace();

}

}

public Connection getConnection()

{

try

{

con = DriverManager.getConnection(url, user, password);

}

catch(SQLException e)

{

e.printStackTrace();

}

return con;

}

public void getProperty()

{

Properties prop = new Properties();

try

{

FileInputStream in = new FileInputStream("Driver.properties");

prop.load(in);

String driver = prop.getProperty("drivers");

if(driver != null)

System.setProperty("jdbc.drivers", driver);

url = prop.getProperty("url");

user = prop.getProperty("user");

password = prop.getProperty("password");

}

catch(FileNotFoundException e)

{

e.printStackTrace();

}

catch(IOException e)

{

e.printStackTrace();

}

}

}

屬性文件的配置 driver.properties

drivers=com.microsoft.jdbc.sqlserver.SQLServerDriver

url=jdbc:microsoft:sqlserver://localhost:1433;

DatabaseName=studentmanager;

user=sa;

password=KALASHI3321;

能編譯但不能執行報錯:

--------------------Configuration: --------------------

java.sql.SQLException: No suitable driver found for jdbc:microsoft:sqlserver://localhost:1433;

at java.sql.DriverManager.getConnection(DriverManager.java:602)

at java.sql.DriverManager.getConnection(DriverManager.java:185)

at CreateTableTest.getConnection(CreateTableTest.java:72)

at CreateTableTest.main(CreateTableTest.java:21)

Exception in thread "main" java.lang.NullPointerException

at CreateTableTest.createTable(CreateTableTest.java:29)

at CreateTableTest.main(CreateTableTest.java:22)

Process completed.

展開

總結

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