java - DERBY 中的连接错误

Question

我在 eclipse 中使用 derby 数据库使用以下代码，但出现错误

Insufficient data while reading from the network - expected a minimum of 6 bytes and received only 0 bytes.  The connection has been terminated.
    at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
    at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
    at org.apache.derby.jdbc.ClientDriver.connect(Unknown Source)
    at java.sql.DriverManager.getConnection(DriverManager.java:322)
    at java.sql.DriverManager.getConnection(DriverManager.java:273)
    at jdbc.JDBCSample.main(JDBCSample.java:19)."       

封装jdbc；

import java.sql.*;

public class JDBCSample {

public static void main( String args[]) {

String connectionURL = "jdbc:derby://127.0.0.1:8080/SAMPLE";
// Change the connection string according to your db, ip, username and password

try {

    // Load the Driver class.
    Class.forName("org.apache.derby.jdbc.ClientDriver");
    // If you are using any other database then load the right driver here.

    //Create the connection using the static getConnection method
    Connection con = DriverManager.getConnection (connectionURL);

    //Create a Statement class to execute the SQL statement
    Statement stmt = con.createStatement();

    //Execute the SQL statement and get the results in a Resultset
    ResultSet rs = stmt.executeQuery("select moviename, releasedate from movies");


    // Iterate through the ResultSet, displaying two values
    // for each row using the getString method

    while (rs.next())
        System.out.println("Name= " + rs.getString("moviename") + " Date= " + rs.getString("releasedate"));
    con.close();

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


}
}
}

Answer 1

我想你的问题将会得到解决，如果你使用用户名和密码调用 getConnection("..", "..", "..") 方法。示例

Connection con = DriverManager.getConnection(connectionURL, "sa", "sa");