輕量級的 Java ORM 小型框架 - u-orm
u-orm 是一個適用、快速、簡單、輕量級的 Java ORM 小型框架,無第三方包依賴，只有一個commons-logging.jar ，為了日志輸出。整個jar包只有121KB，并封裝了很多實用的操作函數，詳細見api中的 org.uorm.dao.common.ICommonDao 。
enjoy it! just make your own simple orm.
POJO生成工具
提供數據庫對應ORM類生成工具，詳見Wiki里的“POJO生成工具”
使用簡單
使用簡單、上手快、靈活，無需學習HQL、Mybatis等，只需要會sql就行。 使用示例：
String driver = "com.mysql.jdbc.Driver";//"oracle.jdbc.driver.OracleDriver";
/**連接字串 */
String url = "jdbc:mysql://127.0.0.1/simdb";//"jdbc:oracle:thin:@127.0.0.1:1521:orcl";
/** 數據庫用戶名 */
String username = "root";//"cctv";//"root";
/** 數據庫密碼 */
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連接池
poolPerperties.put("___POOL_TYPE_", "c3p0");
poolPerperties.put("initialPoolSize", "2");
poolPerperties.put("maxIdleTime", "600");
poolPerperties.put("idleConnectionTestPeriod", "600");
//裝配c3p0連接池，不設置，代表不使用連接池，直接使用JDBC。
//內置支持c3p0和BoneCP
config.setPoolPerperties(poolPerperties);
//ConnectionFactory可擴展自己的實現，支持你需要的連接池和業務邏輯
ConnectionFactory connectionFactory = new DefaultConnectionFactory(config);
ICommonDao dao = new CommonDaoImpl(connectionFactory );
// dao.beginTransation();
//按主鍵查
User user = dao.queryBusinessObjByPk(User.class, 1);
System.out.println(user.getLoginName());
System.out.println("耗時：" + (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());
}
//分頁查詢
// 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("耗時：" + (System.currentTimeMillis() - start) + " ms");
#支持數據庫類型：
DB2、Postgresql、Oracle、MS-SqlServer、MySql、H2Database、Derby、HSQL、Firebird、 Interbase、Informix、Ingres (9,10)、Unisys 2200 Relational Database (RDMS)、TimesTen 5.1
#支持的主鍵生成器：
assigend、uuid、uuid.hex、guid、increment、sequence、select 用戶可實現自己的主鍵生成器 實現接口org.uorm.dao.id.IdentifierGenerator。 并把ORM對應類的keyGenerator設置為實現的類全名例：org.uorm.dao.id.UUIDGenerator
Dependency jar(依賴包)
只有一個依賴包 commons-logging.jar ， 只是為了日志輸出。
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