waitingforhandle / jdbctemplatetool

this is a jdbc template enhancement with general save() update() list() method, and auto generate search sql with object

jdbc-template-tool

this is a jdbc template enhancement with general save() update() list() method, and auto generate sql with object . there are some example

@Test()
public void save() throws Exception {
    User user = new User();
    user.setId("2");
    user.setName("cloud2");
    user.setAge(new Random().nextInt(100));
    jtt.save(user);
}

@Test()
public void updateByObject() throws Exception {
    jtt.execute("insert into t_user(id,name,age) values ('3','cloud3','34')", null);
    /**
     * 能够根据对象的值自动生成update 语句，id为必填项,null值自动忽略
     *  @Id
     *  public String getId() 
     *  
     * real sql: update t_user set dob = ? where id = ?
     */
    User user = new User();
    user.setId("3");
    user.setDob(new Date());
    jtt.update(user);
}


@Test()
public void list() throws Exception {
    jtt.execute("insert into t_user(id,name,age) values ('4','cloud4','34')", null);
    List<User> list = jtt.list("select * from t_user where name like ? limit ?,?", new Object[]{"%cloud%",1,2}, User.class);
    for (User user : list) {
        System.out.println(user.getName());
    }
}

@Test()
public void listByObjectAndPagination() throws Exception {
    /**
     * 能够根据对象的值自动生成select 语句，并且可以根据@Operator注解自定义运算符,null值自动忽略
     *  @Operator(value="like")
     *  public String getName()
     *  @Transient
     *  @Operator(targetColumn="age",value=">=")
     *  public Integer getAgeStart()
     *  @Transient
     *  @Operator(targetColumn="age",value="<=")
     *  public Integer getAgeEnd()
     * 
     * real sql:select * from .t_user where 1=1  and name like ?  and age >= ?  and age <= ?  limit 2,1
     */
    jtt.execute("insert into t_user(id,name,age) values ('5','cloud5','34')", null);
    User user = new User();
    user.setName("%cloud%");
    user.setAgeStart(20);
    user.setAgeEnd(50);
    List<User> list = jtt.listWithPagination(user, 2, 1);
    for (User u : list) {
        System.out.println("name: "+u.getName()+" age: "+u.getAge());
    }
}

@Test()
public void in() throws Exception {
    jtt.execute("delete from t_user", null);
    jtt.execute("insert into t_user(id,name,age) values ('6','cloud6',34)", null);
    jtt.execute("insert into t_user(id,name,age) values ('7','cloud7',35)", null);
    jtt.execute("insert into t_user(id,name,age) values ('8','cloud8',36)", null);
    String[] parms = new String[3];
    parms[0] = "6";
    parms[1] = "7";
    parms[2] = "8";
    UserInSearch user1 = new UserInSearch();
    user1.setId(InUtils.getStr4SQLINParam(parms));
    List<User> list1 = jtt.list(user1);
    for (User u : list1) {
        System.out.println("name: "+u.getName()+" age: "+u.getAge());
    }
    
    List<Integer> listParms = new ArrayList<Integer>();
    listParms.add(34);
    listParms.add(35);
    listParms.add(36);
    UserInSearch user2 = new UserInSearch();
    user2.setAgeIn(InUtils.getStr4SQLINParam(listParms));
    List<User> list2 = jtt.list(user2);       
    for (User u : list2) {
        System.out.println("name: "+u.getName()+" age: "+u.getAge());
    }
    
}