In this tutorial How to integrate JQuery Ajax POST/GET & Spring Boot Web Service, Grokonez will show you how to exchange data between Web client and Spring Boot Web Services.
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Contents
I. Technologies for JQuery Ajax POST/GET & Spring Boot tutorial
– Java 1.8
– Maven 3.3.9
– Spring Tool Suite – Version 3.8.1.RELEASE
– JQuery
– BootStrap
– Spring Boot – 1.5.7.RELEASE
II. Overview
1. Project Structure
In How to integrate JQuery Ajax POST/GET & Spring Boot Web Service, we create 2 Ajax requests: POST & GET
2. Step to do
– Create Spring Boot project
– Create simple model
– Create simple Response message
– Create Web Controller to provide web views
– Create RestController for POST & GET requests
– Create an index.html view
– Create Ajax POST & GET requests
– Run & Check results
III. Practices
1. Create a Spring Boot project
– Open Spring Tool Suite, on main menu, choose File->New->Spring Starter Project, add project info, then press Next for needed dependencies:
For Template Engines, choose Thymeleaf
For Web MVC, choose Web->Web
Open pom.xml file and check needed dependencies:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> |
2. Create simple model
Create a Customer model:
package com.javasampleapproach.jqueryajax.model; public class Customer { private String firstname; private String lastname; public Customer(){} public Customer(String firstname, String lastname){ this.firstname = firstname; this.lastname = lastname; } // firstname public String getFirstname() { return firstname; } public void setFirstname(String firstname) { this.firstname = firstname; } // lastname public String getLastname() { return lastname; } public void setLastname(String lastname) { this.lastname = lastname; } } |
3. Create simple Response message
Create a simple message: Response
package com.javasampleapproach.jqueryajax.message; public class Response { private String status; private Object data; public Response(){ } public Response(String status, Object data){ this.status = status; this.data = data; } public String getStatus() { return status; } public void setStatus(String status) { this.status = status; } public Object getData() { return data; } public void setData(Object data) { this.data = data; } } |
4. Create Web Controller to provide web views
package com.javasampleapproach.jqueryajax.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; @Controller public class WebController { @GetMapping(value="/") public String homepage(){ return "index"; } } |
5. Create RestController for POST & GET requests
package com.javasampleapproach.jqueryajax.controller; import java.util.ArrayList; import java.util.List; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.javasampleapproach.jqueryajax.message.Response; import com.javasampleapproach.jqueryajax.model.Customer; @RestController @RequestMapping("/api/customer") public class RestWebController { List<Customer> cust = new ArrayList<Customer>(); @GetMapping(value = "/all") public Response getResource() { Response response = new Response("Done", cust); return response; } @PostMapping(value = "/save") public Response postCustomer(@RequestBody Customer customer) { cust.add(customer); // Create Response Object Response response = new Response("Done", customer); return response; } } |
6. Create index.html view
Simple index.html is created with Bootstrap & Thymeleaf
<!DOCTYPE HTML> <html> <head> <title>Spring Boot - AJAX POST GET Example</title> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"/> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="/js/postrequest.js"></script> <script src="/js/getrequest.js"></script> </head> <body> <div class="container"> <h3 style="color:blue">POST-GET AJAX Example</h3> <div> <form class="form-inline" style="margin:20px 20px 20px 20px" id="customerForm"> <div class="form-group"> <label for="firstname" style="margin-right:5px">FirstName:</label> <input type="text" class="form-control" id="firstname" placeholder="Enter FirstName"/> </div> <div class="form-group"> <label for="lastname" style="margin-left:20px; margin-right:5px">LastName:</label> <input type="text" class="form-control" id="lastname" placeholder="Enter LastName"/> </div> <button type="submit" class="btn btn-default" style="margin-left:20px; margin-right:5px">Submit</button> </form> </div> <div class="col-sm-7" id="postResultDiv"> </div> <div class="col-sm-7" style="margin:20px 0px 20px 0px"> <button id="getAllCustomerId" type="button" class="btn btn-primary">Get All Customers</button> <div id="getResultDiv" style="padding:20px 10px 20px 50px"> <ul class="list-group"> </ul> </div> </div> </div> </body> </html> |
7. Create Ajax POST & GET JavaScript
– Create a POST request by JQuery Ajax in postrequest.js file:
$( document ).ready(function() { // SUBMIT FORM $("#customerForm").submit(function(event) { // Prevent the form from submitting via the browser. event.preventDefault(); ajaxPost(); }); function ajaxPost(){ // PREPARE FORM DATA var formData = { firstname : $("#firstname").val(), lastname : $("#lastname").val() } // DO POST $.ajax({ type : "POST", contentType : "application/json", url : window.location + "api/customer/save", data : JSON.stringify(formData), dataType : 'json', success : function(result) { if(result.status == "Done"){ $("#postResultDiv").html("<p style='background-color:#7FA7B0; color:white; padding:20px 20px 20px 20px'>" + "Post Successfully! <br>" + "---> Customer's Info: FirstName = " + result.data.firstname + " ,LastName = " + result.data.lastname + "</p>"); }else{ $("#postResultDiv").html("<strong>Error</strong>"); } console.log(result); }, error : function(e) { alert("Error!") console.log("ERROR: ", e); } }); // Reset FormData after Posting resetData(); } function resetData(){ $("#firstname").val(""); $("#lastname").val(""); } }) |
– Create a GET request by JQuery Ajax in getrequest.js:
$( document ).ready(function() { // GET REQUEST $("#getAllCustomerId").click(function(event){ event.preventDefault(); ajaxGet(); }); // DO GET function ajaxGet(){ $.ajax({ type : "GET", url : window.location + "api/customer/all", success: function(result){ if(result.status == "Done"){ $('#getResultDiv ul').empty(); var custList = ""; $.each(result.data, function(i, customer){ var customer = "- Customer with Id = " + i + ", firstname = " + customer.firstname + ", lastName = " + customer.lastname + "<br>"; $('#getResultDiv .list-group').append(customer) }); console.log("Success: ", result); }else{ $("#getResultDiv").html("<strong>Error</strong>"); console.log("Fail: ", result); } }, error : function(e) { $("#getResultDiv").html("<strong>Error</strong>"); console.log("ERROR: ", e); } }); } }) |
8. Run & Check results
Build & Run project with Spring Boot mode.
Results:
IV. Sourcecode
Last updated on March 18, 2019.
after clicking on getAllCustomer its not fetching data
Please check out the video:
https://youtu.be/pZamJ34AUr8
how to describe the starting class. main
You can download sourcecode and see the main class in it.
It was generated automatically by SpringToolSuite.
I’m having difficulty understanding what the URL value should be.
In your sample code you have it as:
url : window.location + “api/customer/save”,
I understand where you are getting api/customer/save but am unsure as to what window.location is. In addition I don’t understand exactly what the goal is for the URL statement.
Thanks
Hi Mark,
window.locationis used to get the current page address (URL).In the case, you can NOT use it.
Regards,
JSA
If we want to print response of restrequest in another jsp page. How it is possible please tell me.
Hi Raja,
You can do it! You can use JSP or Thymeleaf view technologies to render data model on server side then returns response with html data to browser.
Regards,
JSA
how can i clear the arraylist just because i need only last record
The token?
good example but you not used thymeleaf in that please post with thymeleaf code
what does \all and \save url came unlike customer which is class name. can we give any name and use it same in ajax?
if add /all to browser link will it work as get request and /save for post with out typing button.
Thank you very much