<dependency>    <groupId>cn.xnatural</groupId>    <artifactId>jpa</artifactId>    <version>1.0.9</version></dependency>

//1. 根据jdbcUrl 创建Repo repo = new Repo("jdbc:mysql://localhost:3306/test?user=root&password=root").init();

//2. 自定义添加属性Repo repo = new Repo("jdbc:mysql://localhost:3306/test", "root", "root", 0, 5)        .setAttr("hibernate.hbm2ddl.auto", "update")        .entities(Db.class).init();

//3. 根据属性集创建Map<String, Object> attrs = new HashMap<>();attrs.put("jdbcUrl", "jdbc:mysql://localhost:3306/test?user=root&password=root");attrs.put("hibernate.hbm2ddl.auto", "update"); //update: 自动根据实体更新表结构, none: 不更新Repo repo = new Repo(attrs).entities(Db.class).init();

/** * 自定义 实体 */@Entity@Table(name = "Db")public class Db implements IEntity {    @Id    public String Db;    public String Host;}

import cn.xnatural.jpa.UUIDEntity;/** * 无符号 '-' uuid实体  */@Entitypublic class Test1 extends UUIDEntity {    public String name;}

import cn.xnatural.jpa.LongIdEntity;/** * 自增长 long id 实体 */@Entitypublic class Test2 extends LongIdEntity {    public String name;}

Db db = repo.find(Db.class, (root, query, cb) -> cb.equal(root.get("Db"), "sys"));

Page<Db> pageData = repo.findPage(Db.class, 1, 10, (root, query, cb) -> cb.equal(root.get("Db"), "sys"));

// 保存或更新实体repo.saveOrUpdate(实体对象)// 根据id查询实体repo.findById(实体Class, id值)// 删除一个实体repo.delete(实体对象)// 查询多个实体repo.findList(实体Class, 条件)// 统计实体个数repo.count(实体Class, 条件(可选))

Long count = repo.hqlFirstRow("select count(1) as total from Db", Long.class);

Map record = repo.hqlFirstRow("select new map(Host as host,User as user) from User where User=:user", Map.class, "root");

User record = repo.hqlFirstRow("select new entity.User(Host,User) from User where User=:user", User.class, "root");

List<Long> ls = repo.hqlRows("select count(1) as total from Db", Long.class);

List<Map> records = repo.hqlRows("select new map(Host as host,User as user) from User where User=:user", Map.class, "root");

List<User> users = repo.hqlRows("select new entity.User(Host,User) from User where User=:user", User.class, "root");

// 1. 无参repo.firstRow("select count(1) as total from db").get("total")// 2. 传参Map<String, Object> result = repo.firstRow("select * from db where Db=?", "sys");// 3. 包装结果Db result = repo.firstRow("select * from db where Db=?", Db.class, "sys");

// 1. 默认返回List<Map>List<Map<String, Object>> results = repo.rows("select * from db limit ?", 10);// 2. 指定返回结果List<Db> results = repo.rows("select * from db where Db=?", Db.class, "sys");// 3. 分页查询Page<Db> pageData = repo.sqlPage("select * from db where Db=?", 1, 10, Db.class, "sys");// 4. 命名参数(in条件查询)List<Map<String, Object>> results = repo.rows("select * from db where Db = :db and Db in (:ids)", "sys", Arrays.asList("sys"));

// 1. 更新repo.execute("update test set age=? where id=?", 11, "4028b881766f3e5801766f3e87ba0000")// 2. 插入repo.execute("insert into test values(?,?,?,?,?)", UUID.randomUUID().toString().replace("-", ""), new Date(), new Date(), 22, "name")// 3. 删除repo.execute("delete from test where id=?", "ad3e4ff8f3fd4171aeeb9dd2c0aa6f0c")

// 1. 其它自定义查询repo.trans(session -> {    // TODO    // session.createQuery(hql);// hql查询    return null;})// 2. 事务成功/失败回调repo.trans(session -> {    // TODO    // session.createQuery(hql);// hql查询    return null;}, () -> {    // TODO 成功执行}, (ex) -> {    // TODO 失败执行})

// 查询实体映射的表名repo.tbName(实体Class);// 得到当前的连接jdbcUrlrepo.getJdbcUrl();// 得到当前连接的数据库名(mysql)repo.getDbName();// 得到当前数据库的版本信息repo.getDBVersion();