轻量级的 Java ORM 小型框架 - u-orm
openkk
13年前
u-orm 是一个适用、快速、简单、轻量级的 Java ORM 小型框架,无第三方包依赖，只有一个commons-logging.jar ，为了日志输出。整个jar包只有121KB，并封装了很多实用的操作函数，详细见api中的 org.uorm.dao.common.ICommonDao 。
enjoy it! just make your own simple orm.
POJO生成工具
提供数据库对应ORM类生成工具，详见Wiki里的“POJO生成工具”
使用简单
使用简单、上手快、灵活，无需学习HQL、Mybatis等，只需要会sql就行。 使用示例：
String driver = "com.mysql.jdbc.Driver";//"oracle.jdbc.driver.OracleDriver"; /**连接字串 */ String url = "jdbc:mysql://127.0.0.1/simdb";//"jdbc:oracle:thin:@127.0.0.1:1521:orcl"; /** 数据库用户名 */ String username = "root";//"cctv";//"root"; /** 数据库密码 */ String password = "root";//"1";//"root"; long start = System.currentTimeMillis(); DatasourceConfig config = new DatasourceConfig(); config.setDriverClass(driver); config.setJdbcUrl(url); config.setUsername(username); config.setPassword(password); Map<String, String> poolPerperties = new HashMap<String, String>(); //使用c3p0连接池 poolPerperties.put("___POOL_TYPE_", "c3p0"); poolPerperties.put("initialPoolSize", "2"); poolPerperties.put("maxIdleTime", "600"); poolPerperties.put("idleConnectionTestPeriod", "600"); //装配c3p0连接池，不设置，代表不使用连接池，直接使用JDBC。 //内置支持c3p0和BoneCP config.setPoolPerperties(poolPerperties); //ConnectionFactory可扩展自己的实现，支持你需要的连接池和业务逻辑 ConnectionFactory connectionFactory = new DefaultConnectionFactory(config); ICommonDao dao = new CommonDaoImpl(connectionFactory ); // dao.beginTransation(); //按主键查 User user = dao.queryBusinessObjByPk(User.class, 1); System.out.println(user.getLoginName()); System.out.println("耗时：" + (System.currentTimeMillis() - start) + " ms"); start = System.currentTimeMillis(); List<User> users = dao.queryBusinessObjs(User.class, "select t.*, 'test' from UUM_USER t"); System.out.println(users.size() + "," + users.get(0).getLoginName()); Long count = dao.querySingleObject(Long.class, "select count(*) from UUM_USER"); System.out.println(count); List<Map<String, Object>> userListMap = dao.queryForListMap("select * from UUM_USER"); for (Map<String, Object> map : userListMap) { for (String key : map.keySet()) { System.out.println(key + " = " + map.get(key)); } System.out.println("----------------------"); } Map<String, Object> u = dao.queryForMap("select * from UUM_USER"); for (String key : u.keySet()) { System.out.println(key + " = " + u.get(key)); } User uu = dao.querySingleObject(User.class, "select * from UUM_USER"); System.out.println(uu.getLoginName()); users = dao.queryBusinessObjs(User.class, "select * from UUM_USER where ID = ?", 0, 102, new SqlParameter(User.PROP_ID, 1)); System.out.println("==============================="); System.out.println(users.size()); for(User ue : users){ System.out.println(ue.getLoginName()); } //分页查询 // PaginationSupport<User> upage = dao.queryByPagedQuery(User.class, "select * from UUM_USER where ID = ?", 0, 10, new SqlParameter(User.PROP_ID, 1)); PaginationSupport<User> upage = dao.queryByPagedQuery(User.class, "select * from UUM_USER", 1, 10); System.out.println("*************************************"); System.out.println("total = " + upage.getTotalCount() + ", page count = " + upage.getPageCount()); users = upage.getItems(); System.out.println(users.size()); for(User ue : users){ System.out.println(ue.getLoginName()); } System.out.println("---------- delete -------------------"); System.out.println(dao.deleteBusiness(users.get(0))); // System.out.println("---------- update -------------------"); // user.setUserName(user.getLoginName()); // user.setPassword("123456"); // user.setBirthday(new Date()); // System.out.println(dao.updateBusinessObjs(false, user)); // System.out.println("---------- save -------------------"); List<User> userss = new ArrayList<User>(); for(int i = 207; i <= 1+207; i ++){ User uus = new User();//new User(i); uus.setLoginName("loginname-"+Utils.genRandomNum(6)); uus.setUserName("username-"+ Utils.genRandomNum(6)); uus.setPassword("password-"+i); uus.setDescription("desc-"+i); uus.setState(i); uus.setCreateTime(new Timestamp(System.currentTimeMillis())); uus.setUserCard("usercard-"+i); uus.setUserType(i); uus.setEmail("email-"+i); uus.setSex(i); uus.setAddress("address-"+i); uus.setBirthday(new Timestamp(System.currentTimeMillis())); // uus.setTest("ddd"); userss.add(uus); } System.out.println(dao.saveBusinessObjs(userss)); // dao.commitTransation(); /**test id generator*/ // User us = new User(); // us.setLoginName("loginname-id"); // us.setUserName("username-id"); // us.setPassword("password-id"); // us.setDescription("desc-id"); // us.setState(1); // us.setCreateTime(new Date()); // us.setUserCard("usercard-id"); // us.setUserType(1); // us.setEmail("email-id"); // us.setSex(1); // us.setAddress("address-id"); // us.setBirthday(new Date()); // System.out.println(dao.saveBusinessObjs(us)); // System.out.println(us.getId()); // TestUuid test = new TestUuid(); // test.setSeqNum(10); // System.out.println(dao.saveBusinessObjs(test)); // System.out.println(test.getId()); /**test lob*/ // CimData cimdata = dao.queryBusinessObjByPk(CimData.class, 2, 1); // System.out.println(cimdata.getCimClassId()); // System.out.println(new String(cimdata.getCimOp())); // System.out.println(new String(cimdata.getCimInst())); // ObjectInputStream oi = new ObjectInputStream(new ByteArrayInputStream(cimdata.getCimInst())); // CimData cd = (CimData)oi.readObject(); // System.out.println(cd.getCimClassId()); // System.out.println(new String(cd.getCimOp())); // System.out.println(new String(cd.getCimInst())); // ByteArrayOutputStream baos = new ByteArrayOutputStream(); // ObjectOutputStream oos = new ObjectOutputStream(baos); // oos.writeObject(cimdata); // oos.flush(); // baos.flush(); // byte[] bytes = baos.toByteArray(); // baos.close(); // oos.close(); // cimdata.setCimInst(bytes); // System.out.println( dao.updateBusinessObjs(false, cimdata) ); System.out.println("耗时：" + (System.currentTimeMillis() - start) + " ms"); #支持数据库类型：
DB2、Postgresql、Oracle、MS-SqlServer、MySql、H2Database、Derby、HSQL、Firebird、 Interbase、Informix、Ingres (9,10)、Unisys 2200 Relational Database (RDMS)、TimesTen 5.1
#支持的主键生成器：
assigend、uuid、uuid.hex、guid、increment、sequence、select 用户可实现自己的主键生成器 实现接口org.uorm.dao.id.IdentifierGenerator。 并把ORM对应类的keyGenerator设置为实现的类全名例：org.uorm.dao.id.UUIDGenerator
Dependency jar(依赖包)
只有一个依赖包 commons-logging.jar ， 只是为了日志输出。