crud

问题 I am beginner with Spring Boot. UserController.java @Controller @ComponentScan("com.foo.dto") public class UserController { @Autowired UserRepository userRepository; @RequestMapping("/test") public void test() { System.out.println("PLEASE RUN"); } UserRepository extends CrudRepository @Repository public interface UserRepository extends CrudRepository<User, Long> { List<User> findByLastName(String lastName); List<User> findByAccNameAndPassword(String accName, String password); } User .java

问题 I have a User model that stores the users in the database. With GII create a CRUD to be able to register and update users. The problem is with the password. How could I do for when I create a user to load a password and when I update it if I want to be able to update it? My table: CREATE TABLE user ( id int(11) NOT NULL, username varchar(250) NOT NULL, auth_key varchar(32) NOT NULL, password_hash varchar(255) NOT NULL, password_reset_token varchar(255) NOT NULL, email varchar(255) NOT NULL,

问题 I have tried using this generic functions to insert-update Entities but I always thought that maybe I am doing this totally wrong so therefore I would like to have your opinions/suggestions. These are my Insert & Update functions: public static bool Insert<T>(T item) where T : class { using (ApplicationDbContext ctx = new ApplicationDbContext()) { try { ctx.Set<T>().Add(item); ctx.SaveChanges(); return true; } catch (Exception ex) { // ... } } } public static bool Update<T>(T item) where T :

问题 I created a simple chat application and now I want to store the chat messages in Sqlite to provide chat history to users. But I don't have idea how to create database and tables, and inserting data at runtime as well. I want to store _sender, _receiver and _msg for now. I tried this post's answer but there was syntax error in this.insertStmt = this.myDataBase.compileStatement(INSERT); Even I do not know if it is right approach for my case as in chat history it seems the database is a bit

问题 I'm trying to write classes and methods to minimize recurring tasks. For instance, I'm planning to write a generic DAO (Database Access Object) class in Java which can do the basic crud operations by accpeting the inputdata. For example, the following is a method I just started writing which accepts a Bean as a parameter and constructs an insert query. public boolean insert(Object object) throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException,

问题 I'm using Spring's CrudRepository in combination with the annotation @RepositoryRestResource to implement a simple CRUD-app that can be used throught a RESTful API. I now want to add an AspectJ pointcut on my repository , so that some functionalities will be executed whenever a CRUD-method from the interface is called. First, I extend Spring's CrudRepository to add some custom functionalities in my own interface: @RepositoryRestResource(collectionResourceRel = "customers", path = "customers")

问题 I am trying to make a MEAN CRUD app. I am not exactly sure which of my routes are off, but i cannot seem to communicate with the mongodb to display data. The debugger seems to break when "rug-list.component.ts" calls the getRugs() service in "rug.service.ts". (I am also wondering: do the pathnames in the back-end files need to match those of the front-end?) Any advice would be much appreciated. :) » rug.service.ts (frontend) ... @Injectable({ providedIn: "root" }) export class RugService {

问题 I'm struggling to edit a single item with vue and firebase. My edit page url receives item's id. So what I want is to load this single item from firebase. Edit it and save it back into firebase. I use vue version 2 and vuefire. I'm stuck at loading a single item from firebase and displaying it in a form. Here is what I've got so far: <template> <div> <h1>Item: {{ item.name }}</h1> <label>Name</label> <input type="text" value="" name="hive-name"/> </div> </template> <script> import { db } from

问题 I am just learning java ee 6. My goal is having a simple crud application which let me create edit list and delete one trivial entity made simply by the id, a name string and a description string. I followed this just to see some code http://netbeans.org/kb/docs/web/jsf20-crud.html I used eclipse instead of netbeans and jboss 7 instead of glass fish. Well.... It works. Now think my entity is a "User": id, username, Password. I want to add a "UserRole" entity and here it is: id, rolename. Then

问题 I'm new to HBase, what's the best way to retrieve results from a table, row by row? I would like to read the entire data in the table. My table has two column families say col1 and col2. 回答1: From Hbase shell, you can use scan command to list data in table, or get to retrieve a record. Reference here 回答2: I think here is what you need: both through HBase shell and Java API: http://cook.coredump.me/post/19672191046/hbase-client-example However you should understand hbase shell 'scan' is very