数据库不适用于 netbeans

Question

我的数据库不工作，我在代码后粘贴了错误：

    try {

        String url = "jdbc:derby:test";
        String name = "root";
        String password = "123";
        Connection con = DriverManager.getConnection(url, name, password);
        Statement state = con.createStatement();
        String query = "INSERT INTO APP.UNTITLED (id , name , password ) VALUES (1, 'Anas','123456789')";
        state.execute(query);

    }
    catch (SQLException e){
        e.printStackTrace();
    }
  }  
}

这是出现的错误：

java.sql.SQLException: No suitable driver found for jdbc:derby:test
    at java.sql.DriverManager.getConnection(DriverManager.java:689)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)
    at testdatabase.TestDatabase.main(TestDatabase.java:25)
BUILD SUCCESSFUL (total time: 0 seconds)

Answer 1

您必须使用Class.forName 查找类路径以找到合适的驱动程序。

try {
 ...
 Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance(); 
 Connection con = DriverManager.getConnection(url, name, password);
 Statement state = con.createStatement();
 ...
 }    

 catch (....

不要忘记将库添加到您的项目

java 数据库驱动程序

包含以下 jar 文件。

derby.jar
derbyclient.jar
derbynet.jar

数据库不适用于 netbeans

Database doesn't work on netbeans

mysql

netbeans

netbeans-8