In this tutorial, we show you Vue.js Http Client & Spring Boot Server example that uses Spring JPA to do CRUD with MySQL and Vue.js as a front-end technology to make request and receive response.
Related Posts:
– How to use Spring JPA MySQL | Spring Boot
– Vue Router example – with Nav Bar, Dynamic Route & Nested Routes
– Spring Boot + Vuejs: Authentication with JWT & Spring Security Example
Technologies
– Java 1.8
– Maven 3.3.9
– Spring Tool Suite – Version 3.8.4.RELEASE
– Spring Boot: 2.0.5.RELEASE
– Vue 2.5.17
– Vue Router 3
– Axios 0.18.0
Overview
This is full-stack Architecture:
Demo
1. Spring Boot Server
2. Vue.js Client
Practice
1. Spring Boot Server
– Customer class corresponds to entity and table customer.
– CustomerRepository is an interface extends CrudRepository, will be autowired in CustomerController for implementing repository methods and custom finder methods.
– CustomerController is a REST Controller which has request mapping methods for RESTful requests such as: getAllCustomers, postCustomer, deleteCustomer, findByAge, updateCustomer.
– Configuration for Spring Datasource and Spring JPA properties in application.properties
– Dependencies for Spring Boot and MySQL in pom.xml
1.1 Dependency
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> |
1.2 Data Model
model/Customer.java
package com.grokonez.spring.restapi.mysql.model; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name = "customer") public class Customer { @Id @GeneratedValue(strategy = GenerationType.AUTO) private long id; @Column(name = "name") private String name; @Column(name = "age") private int age; @Column(name = "active") private boolean active; public Customer() { } public Customer(String name, int age) { this.name = name; this.age = age; this.active = false; } public long getId() { return id; } public void setName(String name) { this.name = name; } public String getName() { return this.name; } public void setAge(int age) { this.age = age; } public int getAge() { return this.age; } public boolean isActive() { return active; } public void setActive(boolean active) { this.active = active; } @Override public String toString() { return "Customer [id=" + id + ", name=" + name + ", age=" + age + ", active=" + active + "]"; } } |
1.3 JPA Repository
repo/CustomerRepository.java
package com.grokonez.spring.restapi.mysql.repo; import java.util.List; import org.springframework.data.repository.CrudRepository; import com.grokonez.spring.restapi.mysql.model.Customer; public interface CustomerRepository extends CrudRepository<Customer, Long> { List<Customer> findByAge(int age); } |
1.4 REST Controller
controller/CustomerController.java
package com.grokonez.spring.restapi.mysql.controller; import java.util.ArrayList; import java.util.List; import java.util.Optional; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.CrossOrigin; import org.springframework.web.bind.annotation.DeleteMapping; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.PutMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.grokonez.spring.restapi.mysql.model.Customer; import com.grokonez.spring.restapi.mysql.repo.CustomerRepository; @CrossOrigin(origins = "http://localhost:4200") @RestController @RequestMapping("/api") public class CustomerController { @Autowired CustomerRepository repository; @GetMapping("/customers") public List<Customer> getAllCustomers() { System.out.println("Get all Customers..."); List<Customer> customers = new ArrayList<>(); repository.findAll().forEach(customers::add); return customers; } @PostMapping("/customer") public Customer postCustomer(@RequestBody Customer customer) { Customer _customer = repository.save(new Customer(customer.getName(), customer.getAge())); return _customer; } @DeleteMapping("/customer/{id}") public ResponseEntity<String> deleteCustomer(@PathVariable("id") long id) { System.out.println("Delete Customer with ID = " + id + "..."); repository.deleteById(id); return new ResponseEntity<>("Customer has been deleted!", HttpStatus.OK); } @GetMapping("customers/age/{age}") public List<Customer> findByAge(@PathVariable int age) { List<Customer> customers = repository.findByAge(age); return customers; } @PutMapping("/customer/{id}") public ResponseEntity<Customer> updateCustomer(@PathVariable("id") long id, @RequestBody Customer customer) { System.out.println("Update Customer with ID = " + id + "..."); Optional<Customer> customerData = repository.findById(id); if (customerData.isPresent()) { Customer _customer = customerData.get(); _customer.setName(customer.getName()); _customer.setAge(customer.getAge()); _customer.setActive(customer.isActive()); return new ResponseEntity<>(repository.save(_customer), HttpStatus.OK); } else { return new ResponseEntity<>(HttpStatus.NOT_FOUND); } } } |
1.5 Configuration for Spring Datasource & JPA properties
application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/testdb?useSSL=false spring.datasource.username=root spring.datasource.password=123456 spring.jpa.generate-ddl=true |
2. Vue.js Client
– package.json with 3 main modules: vue, vue-router, axios.
– 4 components: CustomersList, Customer, AddCustomer, SearchCustomer.
– router.js defines routes, each route has a path and maps to a component.
– http-common.js initializes HTTP Client with baseUrl and headers for axios HTTP methods.
– vue.config.js configures port for Vue App.
For more details about how to use Vue Router in this example, please visit:
Vue Router example – with Nav Bar, Dynamic Route & Nested Routes
2.0 Setup Vue Project & Router
Init Project
Point cmd to the folder you want to save Project folder, run command:
vue create vue-springboot
You will see 2 options, choose default:
Add Vue Router to Project
– Run command: npm install vue-router.
– Import router to src/main.js:
import Vue from "vue"; import App from "./App.vue"; import router from './router' Vue.config.productionTip = false; new Vue({ router, // inject the router to make whole app router-aware render: h => h(App) }).$mount("#app"); |
Define Routes
src/router.js:
import Vue from "vue"; import Router from "vue-router"; import CustomersList from "./components/CustomersList.vue"; import AddCustomer from "./components/AddCustomer.vue"; import SearchCustomers from "./components/SearchCustomers.vue"; import Customer from "./components/Customer.vue"; Vue.use(Router); export default new Router({ mode: "history", routes: [ { path: "/", name: "customers", alias: "/customer", component: CustomersList, children: [ { path: "/customer/:id", name: "customer-details", component: Customer, props: true } ] }, { path: "/add", name: "add", component: AddCustomer }, { path: "/search", name: "search", component: SearchCustomers } ] }); |
src/App.vue:
<template> <div id="app" class="container-fluid"> <div class="site-info"> <h1>grokonez</h1> <h3>Vue SpringBoot example</h3> </div> <nav> <router-link class="btn btn-primary" to="/">Customers</router-link> <router-link class="btn btn-primary" to="/add">Add</router-link> <router-link class="btn btn-primary" to="/search">Search</router-link> </nav> <br/> <router-view/> </div> </template> <script> export default { name: "app" }; </script> <style> .site-info { color: blue; margin-bottom: 20px; } .btn-primary { margin-right: 5px; } .container-fluid { text-align: center; } </style> |
2.1 Initialize HTTP Client
Install axios with command: npm install axios.
Then create http-common.js file:
import axios from "axios"; export default axios.create({ baseURL: "http://localhost:8080/api", headers: { "Content-type": "application/json", } }); |
2.2 Components
List of Items
components/CustomersList.vue
<template> <div class="list row"> <div class="col-md-6"> <h4>Customers List</h4> <ul> <li v-for="(customer, index) in customers" :key="index"> <router-link :to="{ name: 'customer-details', params: { customer: customer, id: customer.id } }"> {{customer.name}} </router-link> </li> </ul> </div> <div class="col-md-6"> <router-view @refreshData="refreshList"></router-view> </div> </div> </template> <script> import http from "../http-common"; export default { name: "customers-list", data() { return { customers: [] }; }, methods: { /* eslint-disable no-console */ retrieveCustomers() { http .get("/customers") .then(response => { this.customers = response.data; // JSON are parsed automatically. console.log(response.data); }) .catch(e => { console.log(e); }); }, refreshList() { this.retrieveCustomers(); } /* eslint-enable no-console */ }, mounted() { this.retrieveCustomers(); } }; </script> <style> .list { text-align: left; max-width: 450px; margin: auto; } </style> |
Item Details
components/Customer.vue
<template> <div v-if="this.customer"> <h4>Customer</h4> <div> <label>Name: </label> {{this.customer.name}} </div> <div> <label>Age: </label> {{this.customer.age}} </div> <div> <label>Active: </label> {{this.customer.active}} </div> <span v-if="this.customer.active" v-on:click="updateActive(false)" class="button is-small btn-primary">Inactive</span> <span v-else v-on:click="updateActive(true)" class="button is-small btn-primary">Active</span> <span class="button is-small btn-danger" v-on:click="deleteCustomer()">Delete</span> </div> <div v-else> <br/> <p>Please click on a Customer...</p> </div> </template> <script> import http from "../http-common"; export default { name: "customer", props: ["customer"], methods: { /* eslint-disable no-console */ updateActive(status) { var data = { id: this.customer.id, name: this.customer.name, age: this.customer.age, active: status }; http .put("/customer/" + this.customer.id, data) .then(response => { this.customer.active = response.data.active; console.log(response.data); }) .catch(e => { console.log(e); }); }, deleteCustomer() { http .delete("/customer/" + this.customer.id) .then(response => { console.log(response.data); this.$emit("refreshData"); this.$router.push('/'); }) .catch(e => { console.log(e); }); } /* eslint-enable no-console */ } }; </script> |
Add Item
components/AddCustomer.vue
<template> <div class="submitform"> <div v-if="!submitted"> <div class="form-group"> <label for="name">Name</label> <input type="text" class="form-control" id="name" required v-model="customer.name" name="name"> </div> <div class="form-group"> <label for="age">Age</label> <input type="number" class="form-control" id="age" required v-model="customer.age" name="age"> </div> <button v-on:click="saveCustomer" class="btn btn-success">Submit</button> </div> <div v-else> <h4>You submitted successfully!</h4> <button class="btn btn-success" v-on:click="newCustomer">Add</button> </div> </div> </template> <script> import http from "../http-common"; export default { name: "add-customer", data() { return { customer: { id: 0, name: "", age: 0, active: false }, submitted: false }; }, methods: { /* eslint-disable no-console */ saveCustomer() { var data = { name: this.customer.name, age: this.customer.age }; http .post("/customer", data) .then(response => { this.customer.id = response.data.id; console.log(response.data); }) .catch(e => { console.log(e); }); this.submitted = true; }, newCustomer() { this.submitted = false; this.customer = {}; } /* eslint-enable no-console */ } }; </script> <style> .submitform { max-width: 300px; margin: auto; } </style> |
Search Items
components/SearchCustomers.vue
<template> <div class="searchform"> <h4>Find by Age</h4> <div class="form-group"> <input type="number" class="form-control" id="age" required v-model="age" name="age"> </div> <div class="btn-group"> <button v-on:click="searchCustomers" class="btn btn-success">Search</button> </div> <ul class="search-result"> <li v-for="(customer, index) in customers" :key="index"> <h6>{{customer.name}} ({{customer.age}})</h6> </li> </ul> </div> </template> <script> import http from "../http-common"; export default { name: "search-customer", data() { return { age: 0, customers: [] }; }, methods: { /* eslint-disable no-console */ searchCustomers() { http .get("/customers/age/" + this.age) .then(response => { this.customers = response.data; // JSON are parsed automatically. console.log(response.data); }) .catch(e => { console.log(e); }); } /* eslint-enable no-console */ } }; </script> <style> .searchform { max-width: 300px; margin: auto; } .search-result { margin-top: 20px; text-align: left; } </style> |
2.3 Configure Port for Vue App
vue.config.js
module.exports = { devServer: { port: 4200 } } |
Run
– Spring Boot Server: mvn clean install and mvn spring-boot:run.
– Vue.js Client: npm run serve.
Open Browser with Url: http://localhost:4200/.
Source Code
– SpringBootRestMySQL
– vue-springboot
Last updated on October 10, 2019.
This tutorial doesn’t contain the css configuration like “class = button is-small btn-danger”, class=”btn btn-primary”.
Could you tell me how to make them, cause I can’t show the button and click them to delete…
Hi xuanning meng,
You can add Bootstrap to public/index.html with one line of code:
Regards,
grokonez.
hi,
your tutorial is real good,but i got a problem,wath kind a project should i create in STS,becouse i created a spring boot project with web,jpa,mysql,but i still i get not added the hibernate.jpa dependency,and even so cant make it run. Your example i did make it run ,and i was able to persiste on the mysql db,but when i create a spring project for my own i can’t make functioned,can you help me
thanks,
Mariano
Hi Mariano,
Using STS, you can create new Project with Spring Starter Project 🙂
Regards,
grokonez.
Hi, Grokonez, I was finally able to create a project and make it run locally like your example!!
change this:
org.springframework.boot
spring-boot-starter-parent
2.1.1.RELEASE
to this:
org.springframework.boot
spring-boot-starter-parent
2.0.5.RELEASE
Could you make a tutorial to deploy this example on heroku,please? you already got one but with postgres db instead mysql,thanks again,
happy new year!!
Thank you for this sir
can we use vuetify instead??
Thank you very much for this detailed tutorial. You helped me a lot.
Hi Michael, we’re so glad to hear that 🙂
Thanks for the tutorial. Its really nice.
Question- How would you save the customer if the customer had a composite property say Contact as an object with OneToOne mapping. (is it possible to create the contact object with fields like Tel, email, adress in view and the before save, say customer.contact= contact? contact ==object of type Contact?
Hi,
Your tutorial was very interesting but when i run the project i got two problems, the first one related to the CORS policy and the second is: Failed to load resource: the server responded with a status of 404 (Not Found) 8080/api/customers
How can i fix that ? thank you