{"id":183204,"date":"2013-06-14T00:17:02","date_gmt":"2013-06-13T20:17:02","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=183204"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=183204","title":{"rendered":"\u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439, \u0442\u0435\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0443\u0434\u043e\u0431\u043d\u044b\u0435 \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u043d\u0430\u0434 commons-dbutils<\/span>"},"content":{"rendered":"
\n

\u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439, \u0442\u0435\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0443\u0434\u043e\u0431\u043d\u044b\u0435 \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u043d\u0430\u0434 commons-dbutils<\/b>.<\/h1>\n

"\/>
  \u0415\u0441\u043b\u0438 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u043a RDBMS \u0432\u0430\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0432\u0435\u0434\u0435\u0442\u0441\u044f \u043d\u0435 \u0447\u0435\u0440\u0435\u0437 ORM \u0438\u043b\u0438 Spring JdbcTemplate, \u0442\u043e \u0440\u0430\u0431\u043e\u0442\u0443 \u0447\u0435\u0440\u0435\u0437 \u0433\u043e\u043b\u044b\u0439 JDBC \u043c\u043e\u0436\u0435\u0442 \u0441\u0438\u043b\u044c\u043d\u043e \u0441\u043a\u0440\u0430\u0441\u0438\u0442\u044c commons-dbutils<\/a>.
\u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0435\u0441\u043b\u0438 \u0435\u0433\u043e \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0438\u0442\u044c \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u044f\u043c\u0438, \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u0441 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u043c\u0438, \u0430\u0432\u0442\u043e-\u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0435\u043c\/\u0437\u0430\u043a\u0440\u044b\u0442\u0438\u0435\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432, \u0437\u0430\u043f\u0440\u0441\u0430\u043c\u0438 read-only, \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 SqlException, \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u043e\u043c pk \u043f\u0440\u0438 \u0432\u0441\u0442\u0430\u0432\u043a\u0435 \u0438 \u0442.\u0434.
\u0422.\u0435, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0447\u0442\u043e\u0431\u044b \u043c\u043e\u0436\u043d\u043e \u0431\u044b\u043b\u043e \u0431\u044b \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0442\u0430\u043a: <\/p>\n

int userId = Sql.queryForValue("SELECT ID FROM OU.USERS WHERE LAST_NAME=?", "IVANOV"); Sql.update("DELETE FROM OU.USERS WHERE FIRST_NAME=? AND LAST_NAME=?", fname, lname); List<User> list = Sql.query("SELECT FROM OU.USERS", USER_LIST_HANDLER); int newId = Sql.insert("INSERT INTO OU.USERS VALUES (?,?)", fname, lname);<\/code><\/pre>\n
   \u0418 \u044d\u0442\u043e\u0442 \u043a\u043e\u0434 \u0440\u0430\u0431\u043e\u0442\u0430\u043b \u0431\u044b \u0432\u043d\u0443\u0442\u0440\u0438 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438, \u0447\u0435\u0440\u0435\u0437 Application Server Connction pool \u0438 \u0432 JUnit \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 mock-\u043e\u0432.
   \u0417\u0430 \u0447\u0443\u0442\u044c \u043c\u0435\u043d\u044c\u0448\u0435 \u0433\u043e\u0434\u0430 \u043c\u043e\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 commons-dbutils \u043e\u043d \u043e\u0431\u0440\u043e\u0441 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u043a\u043b\u0430\u0441\u0441\u0430\u043c\u0438 \u0438 \u0443\u0442\u0438\u043b\u044c\u043d\u044b\u043c\u0438 \u043c\u0435\u0442\u043e\u0434\u0430\u043c\u0438, \u043e \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438 \u0445\u043e\u0447\u0443 \u0437\u0434\u0435\u0441\u044c \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c.
  <\/a>   <\/p>\n
\u0420\u0430\u0431\u043e\u0442\u0430 \u0432 \u0440\u0430\u0437\u043d\u044b\u0445 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u0445<\/h2>\n
   \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0418\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u043e \u0442\u0435\u0440\u0431\u043e\u0432\u0430\u043d\u0438\u044e<\/a> \u0447\u0435\u0440\u0435\u0437 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 DataSourceFactory \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u043c DataSource, \u043e\u0431\u044a\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0432 JNDI AS:   <\/p>\n
public class ConnectionFactory { private static final LoggerWrapper LOGGER = LoggerWrapper.get(ConnectionFactory.class);  private static class JndiDataSource {     private static final DataSource dataSource;      static {         try {             InitialContext ctx = new InitialContext();             dataSource = (DataSource) ctx.lookup("java:\/comp\/env\/jdbc\/db_name");         } catch (Exception ex) {             throw LOGGER.getIllegalStateException("PostgreSQL initialization failed", ex);         }     } } interface DataSourceFactory {     DataSource getDataSource(); } static DataSourceFactory dataSourceFactory = new DataSourceFactory() {     @Override     public DataSource getDataSource() {         return JndiDataSource.dataSource;     } }; public static DataSource getDataSource() {     return dataSourceFactory.getDataSource(); }<\/code><\/pre>\n
   \u0414\u043b\u044f \u0442\u0435\u0441\u0442\u043e\u0432 \u043f\u043e\u0434\u043c\u0435\u043d\u044f\u0435\u043c \u0435\u0433\u043e \u043d\u0430 commons-dbcp:  <\/p>\n
    <dependency>         <groupId>commons-dbcp<\/groupId>         <artifactId>commons-dbcp<\/artifactId>         <version>1.4<\/version>     <\/dependency><\/code><\/pre>\n
   <\/p>\n
public class TestSq { private static String DB_URL; private static String DB_USER; private static String DB_PSW;  private static class DbcpDataSource {     private static final BasicDataSource dataSource;      static {         dataSource = new BasicDataSource();         dataSource.setUrl(DB_URL);         dataSource.setUsername(DB_USER);         dataSource.setPassword(DB_PSW);     } } public static void initDb(String dbUrl, String dbUser, String dbPsw) {     DB_URL = dbUrl;     DB_USER = dbUser;     DB_PSW = dbPsw;     ConnectionFactory.dataSourceFactory = new ConnectionFactory.DataSourceFactory() {         @Override             public DataSource getDataSource() {             return DbcpDataSource.dataSource;         }     }; }<\/code><\/pre>\n
   \u0415\u0441\u043b\u0438 \u043a\u0440\u0435\u0434\u0435\u043d\u0448\u0435\u043b\u044b \u043a \u0431\u0430\u0437\u0435 \u043d\u0430\u0445\u043e\u0434\u044f\u0442\u0441\u044f \u0432 \u043f\u0440\u043e\u0444\u0438\u043b\u044f\u0445 maven settings.xml, \u0442\u043e \u043c\u043e\u0436\u043d\u043e \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0442\u0435\u0441\u0442\u044b, \u043e\u0441\u043d\u043e\u0432\u044b\u0432\u0430\u044f\u0441\u044c \u043d\u0430 maven profile.
  \u0421\u043e\u0437\u0434\u0430\u0435\u043c test\/resources\/project.properties c \u043a\u0440\u0435\u0434\u0435\u043d\u0448\u0435\u043b\u0430\u043c\u0438 \u0431\u0430\u0437\u044b:   <\/p>\n
    db.url=${db.url}     db.user=${db.user}     db.password=${db.password}<\/code><\/pre>\n
   \u0424\u0438\u043b\u044c\u0442\u0440\u0443\u0435\u043c \u0435\u0433\u043e \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u043c\u0438 \u0438\u0437 settings:   <\/p>\n
    <testResources>         <testResource>             <filtering>true<\/filtering>         <\/testResource><\/code><\/pre>\n
   \u0438 \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c properties \u0447\u0435\u0440\u0435\u0437 getResourceAsStream:   <\/p>\n
public static void initProfileDb() {     Properties prop = UtilProperties.loadAsResource("project.properties");     initDb(prop.getProperty("db.url"), prop.getProperty("db.user"), prop.getProperty("db.password")); }<\/code><\/pre>\n
   \u041e\u0441\u0442\u0430\u0435\u0442\u0441\u044f \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 \u0442\u0435\u0441\u0442\u043e\u0432 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c TestSql.initProfileDb() \u0438 \u0432\u0441\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a \u0431\u0430\u0437\u0435 \u0432\u044b\u0431\u0440\u0430\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0444\u0438\u043b\u044f (mvn -P env test) \u0431\u0443\u0434\u0443\u0442 \u0438\u0434\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 commons-dbcp.<\/p>\n
\u0420\u0430\u0431\u043e\u0442\u0430 \u0441 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438 \u0438 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f\u043c\u0438<\/h2>\n
   \u0414\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0432 ConnectionFactory \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u043a\u043e\u043d\u043d\u0435\u043a\u0442\u0430 \u0438 \u0435\u0433\u043e \u0437\u0430\u043a\u0440\u044b\u0442\u0438\u0435:   <\/p>\n
static Connection getConnection(boolean isReadOnly) throws SQLException {     Connection conn = getDataSource().getConnection();     if (isReadOnly) {         conn.setReadOnly(true);     }     return conn; } static void close(Connection conn) {     if (conn != null) {         try {             if (conn.isReadOnly()) {                 conn.setReadOnly(false);  \/\/ restore NOT readOnly before return to pool             }             conn.close();         } catch (SQLException e) {             Sql.warn(e);         }     } }<\/code><\/pre>\n
   \u041e\u0431\u044a\u044f\u0432\u043b\u044f\u0435\u043c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u0433\u0434\u0435 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u043b\u043e\u0433\u0438\u043a\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u0430   <\/p>\n
public interface SqlExecutor<T> {     T run(Connection conn) throws SQLException; }<\/code><\/pre>\n
   \u0438 \u0435\u0433\u043e \u043e\u0431\u0435\u0440\u0442\u043a\u0443:   <\/p>\n
public class Sql {     public static <T> T execute(boolean isReadOnly, SqlExecutor<T> executor) {         try {             return executor.run(ConnectionFactory.getConnection(isReadOnly)         } catch (SQLException e) {             throw LOGGER.getStateException(ExceptionType.DATA_BASE, e);         } finally {             ConnectionFactory.close(conn);         }     }<\/code><\/pre>\n
   \u0422\u0435\u043f\u0435\u0440\u044c \u0432\u0441\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u043a \u0431\u0430\u0437\u0435 \u0431\u0443\u0434\u0443\u0442 \u0438\u0434\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 \u043d\u0430\u0448\u0443 \u043e\u0431\u0435\u0440\u0442\u043a\u0443:   <\/p>\n
private static final QueryRunner QUERY_RUNNER = new QueryRunner();  public static int update(Connection conn, final String updateSql, final Object... params) throws SQLException {     return QUERY_RUNNER.update(conn, updateSql, params); } public static <T> T query(Connection conn, final String sql, final ResultSetHandler<T> rsh, final Object... params) throws SQLException {     return QUERY_RUNNER.query(conn, sql, rsh, params); } public static int update(final String updateSql, final Object... params) {     return Sql.execute(false, new SqlExecutor<Integer>() {         @Override             public Integer run(Connection conn) throws SQLException {             return update(conn, updateSql, params);         }     }); } public static <T> T query(final String sql, final ResultSetHandler<T> rsh, final Object... params) {     return execute(true, new SqlExecutor<T>() {         @Override         public T run(Connection conn) throws SQLException {             return query(conn, sql, rsh, params);         }     }); }<\/code><\/pre>\n
   \u0421\u043a\u0430\u043b\u044f\u0440\u044b \u0434\u043e\u0441\u0442\u0430\u0435\u043c \u0447\u0435\u0440\u0435\u0437 \u0443\u0442\u0438\u043b\u044c\u043d\u044b\u0435 \u043c\u0435\u0442\u043e\u0434\u044b:   <\/p>\n
public static <T> T queryForValue(Connection conn, final String sql, final Object... params) throws SQLException {     return query(conn, sql, new ScalarHandler<T>(), params); } public static <T> T queryForValue(final String sql, final Object... params) throws SQLException {     return query(sql, new ScalarHandler<T>(), params); }<\/code><\/pre>\n
   <\/p>\n
\u041f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 PK \u043f\u0440\u0438 \u0432\u0441\u0442\u0430\u0432\u043a\u0435<\/h2>\n
   \u041f\u043e\u043a\u0430 Generated key handling for updates<\/a> \u0432 \u0441\u0442\u0430\u0442\u0443\u0441\u0435 Unresolved, \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0434\u0435\u043b\u0430\u0442\u044c \u0432\u0441\u0435 \u0441\u0430\u043c\u0438\u043c:   <\/p>\n
public class KeyQueryRunner extends QueryRunner {     private static final LoggerWrapper LOGGER = LoggerWrapper.get(KeyQueryRunner.class);     private static final ResultSetHandler<Integer> KEY_HANDLER = new ScalarHandler<Integer>();      public int insert(Connection conn, String sql, Object... params) throws SQLException {         PreparedStatement stmt = null;         int rows = 0;          try {             stmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);             this.fillStatement(stmt, params);             rows = stmt.executeUpdate();             if (rows != 1) {                 throw LOGGER.getStateException("\u041e\u0448\u0438\u0431\u043a\u0430 \u0432\u0441\u0442\u0430\u0432\u043a\u0438 \u0437\u0430\u043f\u0438\u0441\u0438 " + sql, ExceptionType.DATA_BASE);             }             return KEY_HANDLER.handle(stmt.getGeneratedKeys());         } catch (SQLException e) {             this.rethrow(e, sql, params);         } finally {             close(stmt);         }         return rows;     } } private static final KeyQueryRunner KEY_QUERY_RUNNER = new KeyQueryRunner();  public static int insert(Connection conn, final String insertSql, final Object... params) throws SQLException {     return KEY_QUERY_RUNNER.insert(conn, insertSql, params); } public static int insert(final String insertSql, final Object... params) {     return Sql.execute(false, new SqlExecutor<Integer>() {         @Override         public Integer run(Connection conn) throws SQLException {             return insert(conn, insertSql, params);         }     }); }<\/code><\/pre>\n
   \u0415\u0441\u043b\u0438 \u043a\u043b\u044e\u0447\u0438 \u0442\u0438\u043f\u0430 long \u2014 \u043d\u0435 \u0437\u0430\u0431\u0443\u0434\u0442\u0435 \u0437\u0430\u043c\u0435\u043d\u0438\u0442\u044c int->long, Integer->Long.<\/p>\n
\u0422\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u043e\u043d\u043d\u043e\u0441\u0442\u044c<\/h2>\n
   \u041d\u0430\u043a\u043e\u043d\u0435\u0446, \u043a\u0430\u043a\u0430\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u0431\u0430\u0437\u043e\u0439 \u0431\u0435\u0437 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439?
   \u0414\u043e\u043f\u0443\u0441\u0442\u0438\u043c, \u0443 \u043d\u0430\u0441 \u0435\u0441\u0442\u044c \u043a\u0430\u043a\u043e\u0439-\u0442\u043e \u043c\u0435\u0442\u043e\u0434, \u043e\u0431\u0440\u0430\u0449\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u043a \u0431\u0430\u0437\u0435:   <\/p>\n
checkAssess(final int docId, final Access accessMode)<\/code><\/pre>\n
   Connection \u043e\u043d \u043d\u0435 \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442, \u0430 \u043d\u0430\u043c \u0437\u0430\u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0435\u0433\u043e \u0432\u043d\u0443\u0442\u0440\u0438 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438.
   \u0418 \u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c \u0431\u044b \u043d\u0435 \u0434\u0443\u0431\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0435\u0433\u043e \u0432   <\/p>\n
checkAssess(Connection conn, final int docId, final Access accessMode)<\/code><\/pre>\n
   \u0414\u0435\u043b\u0430\u0435\u043c \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u043e\u043d\u043d\u0443\u044e \u043e\u0431\u0435\u0440\u0442\u043a\u0443:   <\/p>\n
public static <T> T executeInTransaction(SqlExecutor<T> executor) {     Connection conn = null;     try {         conn = ConnectionFactory.getTxConnection();         T res = executor.run(conn);         conn.commit();         return res;     } catch (Error e) {         throw rollback(conn, e);     } catch (Exception e) {         throw rollback(conn, e);     } finally {         ConnectionFactory.closeTx(conn);     } } private static StateException rollback(Connection conn, Throwable e) {     try {         if (conn != null) {             conn.rollback();         }         return LOGGER.getStateException(ExceptionType.DATA_BASE, e);     } catch (SQLException se) {         return LOGGER.getStateException("Unable to rollback transaction", ExceptionType.DATA_BASE, e);     } }<\/code><\/pre>\n
   \u0438 \u043a\u043b\u0430\u0434\u0435\u043c \u043a\u043e\u043d\u043d\u0435\u043a\u0448\u0435\u043d \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438 \u0432ThreadLocal:   <\/p>\n
public class ConnectionFactory { ... private static final ThreadLocal<Connection> TRANSACT_CONN = new ThreadLocal<Connection>();  static Connection getCurrentConn() {     return TRANSACT_CONN.get(); } static Connection getTxConnection() throws SQLException {     Connection conn = TRANSACT_CONN.get();     if (conn != null) {         throw LOGGER.getIllegalStateException("Start second transaction in one thread");     }     conn = getDataSource().getConnection();     conn.setAutoCommit(false);     TRANSACT_CONN.set(conn);     return conn; } static void closeTx(Connection conn) {     close(conn);     TRANSACT_CONN.set(null); }<\/code><\/pre>\n
   \u0418 \u0443\u0447\u0438\u0442\u044b\u0432\u0430\u0435\u043c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438 \u0432 \u043d\u0430\u0448\u0435\u043c Execute:   <\/p>\n
public static <T> T execute(boolean isReadOnly, SqlExecutor<T> executor) {     Connection conn = null;     Connection txConn = ConnectionFactory.getCurrentConn();     try {         return executor.run(             (txConn == null) ? ConnectionFactory.getConnection(isReadOnly) : txConn);         } catch (SQLException e) {             throw LOGGER.getStateException(ExceptionType.DATA_BASE, e);         } finally {         if (txConn == null)             ConnectionFactory.close(conn);     } }<\/code><\/pre>\n
   \u0422\u0435\u043f\u0435\u0440\u044c \u043b\u044e\u0431\u043e\u0439 \u043d\u0430\u0448 \u0437\u0430\u043f\u0440\u043e\u0441 \u043a \u0431\u0430\u0437\u0435 \u0447\u0435\u0440\u0435\u0437 Execute \u0432\u043d\u0443\u0442\u0440\u0438 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438 \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0441 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u043e\u043d\u043d\u044b\u043c \u043a\u043e\u043d\u043d\u0435\u043a\u0442\u043e\u043c.
   \u041d\u043e \u0442\u0430\u043a\u0436\u0435 \u043e\u0441\u0442\u0430\u043d\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u043d\u0443\u0442\u0440\u0438 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438 \u043e\u0431\u0440\u0430\u0449\u0430\u0442\u044c\u0441\u044f \u043a \u0431\u0430\u0437\u0435 \u043d\u0435 \u0447\u0435\u0440\u0435\u0437 Executor:   <\/p>\n
        List<Person> list = Sql.executeInTransaction(new SqlExecutor<List<Person>>() {         @Override         public List<Person> run(Connection conn) throws SQLException {                 Sql.select(conn, ...);                 Sql.update(conn, ...);                 return Sql.select(conn, ...);             }         });<\/code><\/pre>\n
   \u041f\u043e\u0434\u0445\u043e\u0434 \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u043f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0441 Spring TransactionManager, \u043d\u0435\u0442 \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439, \u043d\u043e \u0434\u043b\u044f 99% \u0441\u043b\u0443\u0447\u0430\u0435\u0432 \u044d\u0442\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e. \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0435\u0441\u043b\u0438 \u043d\u0435 \u0445\u043e\u0447\u0435\u0442\u0441\u044f \u0442\u044f\u043d\u0443\u0442\u044c \u0437\u0430 \u0441\u043e\u0431\u043e\u0439 \u0432\u0435\u0441\u044c Spring \u0438\u043b\u0438 ORM.<\/p>\n
  \u041d\u0430\u043a\u043e\u043d\u0435\u0446, \u0447\u0442\u043e\u0431\u044b \u043d\u0435 \u043f\u0438\u0441\u0430\u0442\u044c \u0442\u0438\u043f Void \u0438 return null, \u0441\u0434\u0435\u043b\u0430\u0435\u043c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0431\u0435\u0437 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430 (\u0430\u043d\u0430\u043b\u043e\u0433 Spring TransactionCallbackWithoutResult)   <\/p>\n
public interface SqlExecutorVoid {     void run(Connection conn) throws SQLException; }  public class Sql { ... private static SqlExecutor<Void> getWrapperExecutor(final SqlExecutorVoid voidExecutor) {     return new SqlExecutor<Void>() {         @Override         public Void run(Connection conn) throws SQLException {             voidExecutor.run(conn);             return null;         }     }; } public static void execute(boolean isReadOnly, SqlExecutorVoid executor) {     execute(isReadOnly, getWrapperExecutor(executor)); } public static void executeInTransaction(SqlExecutorVoid executor) {     executeInTransaction(getWrapperExecutor(executor)); }<\/code><\/pre>\n
   \u0415\u0441\u043b\u0438 \u0412\u0430\u043c \u043f\u043e\u043d\u0440\u0430\u0432\u0438\u043b\u0441\u044f \u043f\u043e\u0434\u0445\u043e\u0434, \u0442\u043e \u0441\u043e\u0431\u0440\u0430\u0432 \u0438\u0437 \u043a\u0443\u0441\u043a\u043e\u0432 \u043a\u043b\u0430\u0441\u0441\u044b \u0432\u044b \u0431\u0443\u0434\u0435\u0442\u0435 \u0438\u043c\u0435\u0442\u044c \u0443\u0434\u043e\u0431\u043d\u044b\u0439 (\u0438 \u0443\u0436\u0435 \u0437\u043d\u0430\u043a\u043e\u043c\u044b\u0439) \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u043d\u0435\u0441\u043b\u043e\u0436\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u0432\u0430\u0448\u0435\u0439 \u0431\u0430\u0437\u043e\u0439.
  \u0421\u043f\u0430\u0441\u0438\u0431\u043e \u0437\u0430 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435. \u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u043f\u0440\u043e\u0435\u043a\u0442\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u0436\u0435 \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0442 \u043d\u0435\u0447\u0442\u043e \u043f\u043e\u0445\u043e\u0436\u0435\u0435 \u0438 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u0438\u0432\u043d\u0430\u044f \u043a\u0440\u0438\u0442\u0438\u043a\u0430 \u043f\u0440\u0438\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u0435\u0442\u0441\u044f.<\/p>\n
  PS: \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 BeanHandler \u0438 BeanListHandler \u043c\u0430\u043f\u043f\u0438\u043d\u0433\u0430 ResultSet \u0432 \u0431\u0438\u043d\u044b java \u043d\u0435 \u0437\u0430\u0431\u044b\u0432\u0430\u0439\u0442\u0435 \u043f\u0440\u043e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u043e\u0440 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0438 setter-\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0445 \u043a\u043b\u0430\u0441\u0441\u043e\u0432.    \t<\/p>\n
<\/div>\n<\/p><\/div>\n
 \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438  http:\/\/habrahabr.ru\/post\/183204\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\n
\u041f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439, \u0442\u0435\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0443\u0434\u043e\u0431\u043d\u044b\u0435 \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u043d\u0430\u0434 commons-dbutils<\/b>.<\/h1>\n
  "\/>
     \u0415\u0441\u043b\u0438 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u043a RDBMS \u0432\u0430\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0432\u0435\u0434\u0435\u0442\u0441\u044f \u043d\u0435 \u0447\u0435\u0440\u0435\u0437 ORM \u0438\u043b\u0438 Spring JdbcTemplate, \u0442\u043e \u0440\u0430\u0431\u043e\u0442\u0443 \u0447\u0435\u0440\u0435\u0437 \u0433\u043e\u043b\u044b\u0439 JDBC \u043c\u043e\u0436\u0435\u0442 \u0441\u0438\u043b\u044c\u043d\u043e \u0441\u043a\u0440\u0430\u0441\u0438\u0442\u044c commons-dbutils<\/a>.
   \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e \u0435\u0441\u043b\u0438 \u0435\u0433\u043e \u043d\u0430\u0434\u0441\u0442\u0440\u043e\u0438\u0442\u044c \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u044f\u043c\u0438, \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u0441 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u043c\u0438, \u0430\u0432\u0442\u043e-\u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0435\u043c\/\u0437\u0430\u043a\u0440\u044b\u0442\u0438\u0435\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432, \u0437\u0430\u043f\u0440\u0441\u0430\u043c\u0438 read-only, \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 SqlException, \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u043e\u043c pk \u043f\u0440\u0438 \u0432\u0441\u0442\u0430\u0432\u043a\u0435 \u0438 \u0442.\u0434.
   \u0422.\u0435, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0447\u0442\u043e\u0431\u044b \u043c\u043e\u0436\u043d\u043e \u0431\u044b\u043b\u043e \u0431\u044b \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0442\u0430\u043a:   <\/p>\n
int userId = Sql.queryForValue("SELECT ID FROM OU.USERS WHERE LAST_NAME=?", "IVANOV"); Sql.update("DELETE FROM OU.USERS WHERE FIRST_NAME=? AND LAST_NAME=?", fname, lname); List<User> list = Sql.query("SELECT FROM OU.USERS", USER_LIST_HANDLER); int newId = Sql.insert("INSERT INTO OU.USERS VALUES (?,?)", fname, lname);<\/code><\/pre>\n
   \u0418 \u044d\u0442\u043e\u0442 \u043a\u043e\u0434 \u0440\u0430\u0431\u043e\u0442\u0430\u043b \u0431\u044b \u0432\u043d\u0443\u0442\u0440\u0438 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438, \u0447\u0435\u0440\u0435\u0437 Application Server Connction pool \u0438 \u0432 JUnit \u0431\u0435\u0437 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 mock-\u043e\u0432.
   \u0417\u0430 \u0447\u0443\u0442\u044c \u043c\u0435\u043d\u044c\u0448\u0435 \u0433\u043e\u0434\u0430 \u043c\u043e\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 commons-dbutils \u043e\u043d \u043e\u0431\u0440\u043e\u0441 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u043a\u043b\u0430\u0441\u0441\u0430\u043c\u0438 \u0438 \u0443\u0442\u0438\u043b\u044c\u043d\u044b\u043c\u0438 \u043c\u0435\u0442\u043e\u0434\u0430\u043c\u0438, \u043e \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438 \u0445\u043e\u0447\u0443 \u0437\u0434\u0435\u0441\u044c \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c.  <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-183204","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/183204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=183204"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/183204\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=183204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=183204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=183204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}