в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

Admin: 1 версия

2010-05-31T14:46:37Z

1 версия

Новая страница

== SQLException: getErrorCode() ==



<source lang="java">

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Main {
public static void main(String[] args) throws Exception {
String url = "jdbc:odbc:databaseName";
String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
String user = "guest";
String password = "guest";
String theStatement = "SELECT lastname, firstname FROM autors";
try {
Class.forName(driver);
Connection connection = DriverManager.getConnection(url, user, password);
Statement queryAuthors = connection.createStatement();
ResultSet theResults = queryAuthors.executeQuery(theStatement);
queryAuthors.close();
} catch (ClassNotFoundException cnfe) {
System.err.println(cnfe);
} catch (SQLException sqle) {
String sqlMessage = sqle.getMessage();
String sqlState = sqle.getSQLState();
int vendorCode = sqle.getErrorCode();
System.err.println("Exception occurred:");
System.err.println("Message: " + sqlMessage);
System.err.println("SQL state: " + sqlState);
System.err.println("Vendor code: " + vendorCode + "\n----------------");
}
}
}

</source>



== SQLException: getNextException() ==



<source lang="java">

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Main {
public static void main(String[] args) {
Connection conn = null;
Statement stmt = null;
ResultSet rs = null;
try {
String driver = "oracle.jdbc.driver.OracleDriver";
Class.forName(driver).newInstance();
System.out.println("Connecting to database...");
String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:ORCL";
conn = DriverManager.getConnection(jdbcUrl, "yourName", "mypwd");
stmt = conn.createStatement();
try {
rs = stmt.executeQuery("Select * from no_table_exisits");
} catch (SQLException seRs) {
String exMsg = "Message from MySQL Database";
String exSqlState = "Exception";
SQLException mySqlEx = new SQLException(exMsg, exSqlState);
seRs.setNextException(mySqlEx);
throw seRs;
}
} catch (SQLException se) {
int count = 1;
while (se != null) {
System.out.println("SQLException " + count);
System.out.println("Code: " + se.getErrorCode());
System.out.println("SqlState: " + se.getSQLState());
System.out.println("Error Message: " + se.getMessage());
se = se.getNextException();
count++;
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

</source>



== SQLException: getSQLState() ==



<source lang="java">

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class Main {
public static void main(String[] args) throws Exception {
String url = "jdbc:odbc:databaseName";
String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
String user = "guest";
String password = "guest";
String theStatement = "SELECT lastname, firstname FROM autors";
try {
Class.forName(driver);
Connection connection = DriverManager.getConnection(url, user, password);
Statement queryAuthors = connection.createStatement();
ResultSet theResults = queryAuthors.executeQuery(theStatement);
queryAuthors.close();
} catch (ClassNotFoundException cnfe) {
System.err.println(cnfe);
} catch (SQLException sqle) {
String sqlMessage = sqle.getMessage();
String sqlState = sqle.getSQLState();
int vendorCode = sqle.getErrorCode();
System.err.println("Exception occurred:");
System.err.println("Message: " + sqlMessage);
System.err.println("SQL state: " + sqlState);
System.err.println("Vendor code: " + vendorCode + "\n----------------");
}
}
}

</source>



== SQLExeption: getMessage() ==



<source lang="java">

/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.ru/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS""
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun"s Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun"s, and James Gosling"s,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.SQLWarning;
/**
* Test of loading a driver and connecting to a database. The URL assumes you
* have the M$ Example "Companies" database configured as a System DSN (or user
* DSN for your user) in the ODBC control panel.
*/
public class Main {
public static void main(String[] av) {
String dbURL = "jdbc:odbc:Companies";
try {
// Load the jdbc-odbc bridge driver
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
// Enable logging
DriverManager.setLogWriter(new PrintWriter((System.err)));
System.out.println("Getting Connection");
Connection conn = DriverManager.getConnection(dbURL, "ian", ""); // user,
// passwd
// If a SQLWarning object is available, print its
// warning(s). There may be multiple warnings chained.
SQLWarning warn = conn.getWarnings();
while (warn != null) {
System.out.println("SQLState: " + warn.getSQLState());
System.out.println("Message: " + warn.getMessage());
System.out.println("Vendor: " + warn.getErrorCode());
System.out.println("");
warn = warn.getNextWarning();
}
// Do something with the connection here...
conn.close(); // All done with that DB connection
} catch (ClassNotFoundException e) {
System.out.println("Can"t load driver " + e);
} catch (SQLException e) {
System.out.println("Database access failed " + e);
}
}
}

</source>

← Предыдущая	Версия 17:43, 31 мая 2010
(нет различий)

Java by API/java.sql/SQLException - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия