<context-param><param-name>db.url</param-name><param-value>jdbc:mysql://localhost:3306/saiku</param-value></context-param><context-param><param-name>db.user</param-name><param-value>root</param-value></context-param><context-param><param-name>db.password</param-name><param-value>root</param-value></context-param>

    <bean id="h2database" class="org.saiku.database.Database" init-method="init"><property name="datasourceManager" ref="repositoryDsManager"/><property name="datasourcetype" value="mysql" /></bean>

private String datasourcetype = "mysql";

private void initDB() {String url = servletContext.getInitParameter("db.url");String user = servletContext.getInitParameter("db.user");String pword = servletContext.getInitParameter("db.password");if (this.datasourcetype.equals("mysql")) {ds = new MysqlDataSource();((MysqlDataSource) ds).setUrl(url);((MysqlDataSource) ds).setUser(user);((MysqlDataSource) ds).setPassword(pword);} else if (this.datasourcetype.equals("h2")) {ds = new JdbcDataSource();((JdbcDataSource) ds).setUrl(url);((JdbcDataSource) ds).setUser(user);((JdbcDataSource) ds).setPassword(pword);}}

    private void loadUsers() throws SQLException {Connection c = ds.getConnection();Statement statement = c.createStatement();statement.execute(" CREATE TABLE IF NOT EXISTS log ( time  TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, log  TEXT); ");statement.execute(" CREATE TABLE IF NOT EXISTS users(user_id INT(11) NOT NULL AUTO_INCREMENT, " + " username VARCHAR(45) NOT NULL UNIQUE, password VARCHAR(100) NOT NULL, email VARCHAR(100), " + " enabled TINYINT NOT NULL DEFAULT 1, PRIMARY KEY(user_id)); ");statement.execute(" CREATE TABLE IF NOT EXISTS user_roles ( " + " user_role_id INT(11) NOT NULL AUTO_INCREMENT,username VARCHAR(45), "  + " user_id INT(11) NOT NULL REFERENCES users(user_id), " + " ROLE VARCHAR(45) NOT NULL, " + " PRIMARY KEY (user_role_id)); ");ResultSet result = statement.executeQuery("select count(*) as c from log where log = 'insert users'");result.next();if (result.getInt("c") == 0) {statement.execute("INSERT INTO users (username,password,email, enabled) VALUES ('admin','admin', 'test@admin.com',TRUE);");statement.execute("INSERT INTO users (username,password,enabled) VALUES ('smith','smith', TRUE);");statement.execute("INSERT INTO user_roles (user_id, username, ROLE) VALUES (1, 'admin', 'ROLE_USER');");statement.execute("INSERT INTO user_roles (user_id, username, ROLE) VALUES (1, 'admin', 'ROLE_ADMIN');");statement.execute("INSERT INTO user_roles (user_id, username, ROLE) VALUES (2, 'smith', 'ROLE_USER');");statement.execute("INSERT INTO log (log) VALUES('insert users');");}
String encrypt = servletContext.getInitParameter("db.encryptpassword");if (encrypt.equals("true") && !checkUpdatedEncyption()) {updateForEncyption();}}public boolean checkUpdatedEncyption() throws SQLException{Connection c = ds.getConnection();Statement statement = c.createStatement();ResultSet result = statement.executeQuery("select count(*) as c from log where log = 'update passwords'");result.next();return result.getInt("c") != 0;}public void updateForEncyption() throws SQLException {Connection c = ds.getConnection();Statement statement = c.createStatement();statement.execute("ALTER TABLE users MODIFY COLUMN PASSWORD VARCHAR(100) DEFAULT NULL");ResultSet result = statement.executeQuery("select username, password from users");while (result.next()) {statement = c.createStatement();String pword = result.getString("password");String hashedPassword = passwordEncoder.encode(pword);String sql = "UPDATE users " + "SET password = '" + hashedPassword+ "' WHERE username = '" + result.getString("username")+ "'";statement.executeUpdate(sql);}statement = c.createStatement();statement.execute("INSERT INTO log (log) VALUES('update passwords');");}

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" >  <property name="driverClassName" value="mysql的驱动"/>  <property name="url" value="mysql的url"/>  <property name="username" value="账户名"/>  <property name="password" value="密码"/>
</bean>