java 连接各种数据库大全
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mysql
import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.Statement;public class testMysql {public static void main(String[] args) {String tableName="student";String driver = "com.mysql.jdbc.Driver";String url = "jdbc:mysql://127.0.0.1:3306/fuck?useUnicode=true&characterEncoding=UTF-8&createDatabaseIfNotExist=true";String user = "root";String password = "root";try {Class.forName(driver);Connection conn = DriverManager.getConnection(url, user, password);if (!conn.isClosed())System.out.println("Succeeded connecting to the Database!");Statement statement = conn.createStatement();statement.executeUpdate("drop table if exists "+tableName);statement.executeUpdate("create table "+tableName+"(name varchar(20),city varchar(20),password varchar(20))");statement.executeUpdate("insert into "+tableName+" values ('110','120','130')");statement.executeUpdate("insert into "+tableName+" values ('你是猪','我是英文test','130')");String sql = "select * from "+tableName;ResultSet rs = statement.executeQuery(sql);System.out.println("-----------------");while (rs.next()) {System.out.println(rs.getString(1) + "\t"+rs.getString(2)+"\t"+rs.getString(3));}statement.close();rs.close();conn.close();}catch (Exception e) {e.printStackTrace();}}}package junit.test;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.Statement;public class testMysql {public static void main(String[] args) {String driver = "com.mysql.jdbc.Driver";String url = "jdbc:mysql://127.0.0.1:3306/mysql";String user = "root";String password = "root";try {Class.forName(driver);Connection conn = DriverManager.getConnection(url, user, password);if (!conn.isClosed())System.out.println("Succeeded connecting to the Database!");Statement statement = conn.createStatement();String sql = "select * from user";ResultSet rs = statement.executeQuery(sql);System.out.println("-----------------");while (rs.next()) {System.out.println(rs.getString(1) + "\t"+rs.getString(2)+"\t"+rs.getString(3));}statement.close();rs.close();conn.close();}catch (Exception e) {e.printStackTrace();}}}sql server 2008
private static void testsql2008() throws Exception {String JDriver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";// SQL数据库引擎String connectDB = "jdbc:sqlserver://192.168.0.68:1433;DatabaseName=Mydb";// 数据源String user = "sa";String password = "WJH0774wjh";Class.forName(JDriver);// 加载数据库引擎，返回给定字符串名的类Connection con = DriverManager.getConnection(connectDB, user, password);// 连接数据库对象System.out.println("连接数据库成功");Statement stmt = con.createStatement();// 创建SQL命令对象System.out.println("开始创建表");String query = "create table TABLE1(ID NCHAR(2),NAME NCHAR(10))";// 创建表SQL语句stmt.executeUpdate("drop table TABLE1");stmt.executeUpdate(query);// 执行SQL命令对象System.out.println("表创建成功");System.out.println("开始插入数据");String a1 = "INSERT INTO TABLE1 VALUES('1','旭哥')";// 插入数据SQL语句String a2 = "INSERT INTO TABLE1 VALUES('2','伟哥')";String a3 = "INSERT INTO TABLE1 VALUES('3','张哥')";stmt.executeUpdate(a1);// 执行SQL命令对象stmt.executeUpdate(a2);stmt.executeUpdate(a3);System.out.println("插入数据成功");System.out.println("开始读取数据");ResultSet rs = stmt.executeQuery("SELECT * FROM TABLE1");// 返回SQL语句查询结果集(集合)// 循环输出每一条记录while (rs.next()) {System.out.println(rs.getString("ID") + "\t" + rs.getString("NAME"));}System.out.println("读取完毕");// 关闭连接stmt.close();// 关闭命令对象连接con.close();// 关闭数据库连接}package com.jiepu.testsql;import java.sql.Connection;import java.sql.DatabaseMetaData;import java.sql.DriverManager;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.Properties;/**java 连接sql 数据库大全、可以用来测试各种数据库是否安装运行成功 * 本项目基于maven管理 查询jar信息http://search.maven.org/ * 在mvn下运行 mvn exec:java -Dexec.mainClass="com.jiepu.testsql.App" */public class App { public static void main(String[] args) { try { System.out.println("Hello World!"); testmysql(); testsql2008(); testjtds_sql2008(); testOracle(); //testSybase(); // testdb2(); testAccess(); testSqlite(); testDerby(); // testPostgreSQL(); } catch (Exception ex) { ex.printStackTrace(); } } //maven添加sql2008 jdbc4 http://claude.betancourt.us/add-microsoft-sql-jdbc-driver-to-maven/ private static void testsql2008() throws Exception { String JDriver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";// SQL数据库引擎 String connectDB = "jdbc:sqlserver://192.168.0.68:1433;DatabaseName=Mydb";// 数据源 String user = "sa"; String password = "WJH0774wjh"; Class.forName(JDriver);// 加载数据库引擎，返回给定字符串名的类 Connection con = DriverManager.getConnection(connectDB, user, password);// 连接数据库对象 System.out.println("连接数据库成功"); Statement stmt = con.createStatement();// 创建SQL命令对象 System.out.println("开始创建表"); String query = "create table TABLE1(ID NCHAR(2),NAME NCHAR(10))";// 创建表SQL语句 stmt.executeUpdate("drop table TABLE1"); stmt.executeUpdate(query);// 执行SQL命令对象 System.out.println("表创建成功"); System.out.println("开始插入数据"); String a1 = "INSERT INTO TABLE1 VALUES('1','旭哥')";// 插入数据SQL语句 String a2 = "INSERT INTO TABLE1 VALUES('2','伟哥')"; String a3 = "INSERT INTO TABLE1 VALUES('3','张哥')"; stmt.executeUpdate(a1);// 执行SQL命令对象 stmt.executeUpdate(a2); stmt.executeUpdate(a3); System.out.println("插入数据成功"); System.out.println("开始读取数据"); ResultSet rs = stmt.executeQuery("SELECT * FROM TABLE1");// 返回SQL语句查询结果集(集合) // 循环输出每一条记录 while (rs.next()) { System.out.println(rs.getString("ID") + "\t" + rs.getString("NAME")); } System.out.println("读取完毕"); // 关闭连接 stmt.close();// 关闭命令对象连接 con.close();// 关闭数据库连接 } private static void testjtds_sql2008() { String driver = "net.sourceforge.jtds.jdbc.Driver"; String url = "jdbc:jtds:sqlserver://192.168.0.68:1433/mydb"; String user = "sa"; String password = "WJH0774wjh"; try { Class.forName(driver); Connection conn = DriverManager.getConnection(url, user, password); if (!conn.isClosed()) { System.out.println("Succeeded connecting to the Database!"); } Statement statement = conn.createStatement(); String sql = "select * from TABLE1"; ResultSet rs = statement.executeQuery(sql); System.out.println("-----------------"); while (rs.next()) { System.out.println(rs.getString(1) + "\t" + rs.getString(2)); } statement.close(); rs.close(); conn.close(); } catch (Exception e) { e.printStackTrace(); } } private static void testmysql() { String driver = "com.mysql.jdbc.Driver"; String url = "jdbc:mysql://127.0.0.1:3306/mysql"; String user = "root"; String password = "root"; try { Class.forName(driver); Connection conn = DriverManager.getConnection(url, user, password); if (!conn.isClosed()) { System.out.println("Succeeded connecting to the Database!"); } Statement statement = conn.createStatement(); String sql = "select * from user"; ResultSet rs = statement.executeQuery(sql); System.out.println("-----------------"); while (rs.next()) { System.out.println(rs.getString(1) + "\t" + rs.getString(2) + "\t" + rs.getString(3)); } statement.close(); rs.close(); conn.close(); } catch (Exception e) { e.printStackTrace(); } } //maven 添加ojdbc6.jar http://www.cnblogs.com/leiOOlei/archive/2013/10/21/3380568.html private static void testOracle() { Connection con = null;// 创建一个数据库连接 PreparedStatement pre = null;// 创建预编译语句对象，一般都是用这个而不用Statement ResultSet result = null;// 创建一个结果集对象 try { Class.forName("oracle.jdbc.driver.OracleDriver");// 加载Oracle驱动程序 System.out.println("开始尝试连接数据库！"); String url = "jdbc:oracle:thin:@192.168.0.68:1521:orcl";// 127.0.0.1是本机地址，XE是精简版Oracle的默认数据库名 String user = "EVIDENCESYS";// 用户名,系统默认的账户名 String password = "abcABC123";// 你安装时选设置的密码 con = DriverManager.getConnection(url, user, password);// 获取连接 System.out.println("连接成功！"); String sql = "select * from case_info";// 预编译语句，“？”代表参数 pre = con.prepareStatement(sql);// 实例化预编译语句 result = pre.executeQuery(); while (result.next()) // 当结果集不为空时 { System.out.println(result.getString(1) + "," + result.getString(2)); } } catch (Exception e) { e.printStackTrace(); } finally { try { if (result != null) { result.close(); } if (pre != null) { pre.close(); } if (con != null) { con.close(); } System.out.println("数据库连接已关闭！"); } catch (Exception e) { e.printStackTrace(); } } } //http://hamlzf.iteye.com/blog/1169061 //该数据库我没有安装和测试 private static void testdb2() { Connection conn = null; Statement stmt = null; ResultSet rs = null; try { Class.forName("com.ibm.db2.jcc.DB2Driver").newInstance(); conn = DriverManager.getConnection("jdbc:db2://localhost:50000/express", "acer", "abin"); stmt = conn.createStatement(); rs = stmt.executeQuery("select * from vote"); while (rs.next()) { System.out.println(rs.getString(1)); System.out.println(rs.getString(2)); System.out.println(rs.getString(3)); } } catch (Exception e) { e.printStackTrace(); } } //该数据库我没有安装和测试 private static void testSybase() { try { Class.forName("com.sybase.jdbc2.jdbc.SybDriver").newInstance(); String url = "jdbc:sybase:Tds:192.168.0.168:5000/master";// 数据库名 Properties sysProps = System.getProperties(); sysProps.put("user", "sa"); // 设置数据库访问用户名 sysProps.put("password", "sybase"); // 密码 Connection conn = DriverManager.getConnection(url, sysProps); Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); String sql = "select id,name,crdate from dbo.sysobjects where type='U'"; // 表 ResultSet rs = stmt.executeQuery(sql); while (rs.next()) { System.out.println("oject_id:" + rs.getString(1) + ",oject_name:" + rs.getString(2)); // 取得第二列的值 } } catch (Exception e) { System.out.println(e.getMessage()); } } private static void testAccess() throws Exception { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String url = "jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ=d:\\jdbc\\test.mdb"; Connection conn = DriverManager.getConnection(url, "", ""); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery("SELECT * FROM student");//students //rs.beforeFirst(); while (rs.next()) { System.out.println(rs.getString(1) + "\t" + rs.getString(2) + "\t" + rs.getString(3)); } rs.close(); stmt.close(); conn.close(); } private static void testSqlite() throws Exception { Class.forName("org.sqlite.JDBC"); Connection conn = DriverManager.getConnection("jdbc:sqlite:test.db"); Statement stat = conn.createStatement(); stat.executeUpdate("drop table if exists people;"); stat.executeUpdate("create table people (name, occupation);"); PreparedStatement prep = conn.prepareStatement( "insert into people values (?, ?);"); prep.setString(1, "Gandhi"); prep.setString(2, "politics"); prep.addBatch(); prep.setString(1, "Turing"); prep.setString(2, "computers"); prep.addBatch(); prep.setString(1, "Wittgenstein"); prep.setString(2, "你是猪"); prep.addBatch(); conn.setAutoCommit(false); prep.executeBatch(); conn.setAutoCommit(true); ResultSet rs = stat.executeQuery("select * from people;"); while (rs.next()) { System.out.println("name = " + rs.getString("name")); System.out.println("job = " + rs.getString("occupation")); } rs.close(); conn.close(); } public static boolean hasTable(String table, Connection conn) throws Exception { if (conn == null) { throw new SQLException("Connection has not been established!"); } boolean state = false; DatabaseMetaData meta = conn.getMetaData(); ResultSet set;//= meta.getTables(null, null, table, null); set = meta.getTables(null, null, table.toUpperCase(), null); while (set.next()) { state = true; System.out.println("Has Table " + table); } return state; } private static void testDerby() throws Exception { String driver = "org.apache.derby.jdbc.EmbeddedDriver"; Class.forName(driver); Connection conn = DriverManager.getConnection("jdbc:derby:userDB;create=true;user=test;password=test"); //userDB创建在d盘下面的a/b文件夹下面， if (!conn.isClosed()) { System.out.println("Succeeded connecting to the Database!"); } Statement stat = conn.createStatement(); if (hasTable("tb_user", conn)) { stat.executeUpdate("drop table tb_user"); } String sql_create = "create table tb_user(id int,name varchar(20),password varchar(20))"; stat.execute(sql_create); stat.close(); String sql_insert = "insert into tb_user values (?,?,?)"; PreparedStatement pst = conn.prepareStatement(sql_insert); pst.setInt(1, 1); pst.setString(2, "name测试的"); pst.setString(3, "pwd 大全"); pst.executeUpdate(); pst = conn.prepareStatement("select * from tb_user"); ResultSet rs = pst.executeQuery(); while (rs.next()) { int id = rs.getInt("id"); String name = rs.getString("name"); String pwd = rs.getString("password"); System.out.println("id->" + id + "\tname->" + name + "\tpassword->" + pwd); } rs.close(); } //我没有安装和测试该数据库 private static void testPostgreSQL() { System.out.print(" this is a test "); try { Class.forName("org.postgresql.Driver").newInstance(); String url = " jdbc:postgresql://localhost:5432/postgres "; Connection con = DriverManager.getConnection(url, " postgres ", " 1234 "); Statement st = con.createStatement(); String sql = " select * from testtable "; ResultSet rs = st.executeQuery(sql); while (rs.next()) { System.out.print(rs.getInt(1)); System.out.println(rs.getString(2)); } rs.close(); st.close(); con.close(); } catch (Exception ee) { System.out.print(ee.getMessage()); } }} 0 0
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