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Spring Angular Search Field Application

In this section, we are going to create a Search Field web application. This application includes data in a tabular form with search fields. In this integration, we are using Spring to handle the backend part and Angular to handle the frontend part.

Working of Application

  • Once we deployed our application on the server, a form generates that contains the data in a tabular form with some search fields.
  • Now, we can search for the data present in the table from these fields. Here, we are using two search fields - name and email-id.
  • To search the data, it is required to provide a complete keyword in any of the search fields.

Tools to be used

  • Use any IDE to develop the Spring and Hibernate project. It may be MyEclipse/Eclipse/Netbeans. Here, we are using Eclipse.
  • MySQL for the database.
  • Use any IDE to develop the Angular project. It may be Visual Studio Code/Sublime. Here, we are using Visual Studio Code.
  • Server: Apache Tomcat/JBoss/Glassfish/Weblogic/Websphere.

Technologies we used

Here, we are using the following technologies:

  • Spring 5
  • Hibernate 5
  • Angular 6
  • MYSQL

Create Database

Let's create a database searchfieldexample. There is no need to create a table as Hibernate automatically created it. Here, we need to provide the data explicitly in the table so that it can appear on the screen to perform search operations. However, we can also import the data from the file present in the download link.

Spring Module

Let's see the directory structure of Spring we need to follow:

Spring Angular Search Field Application

To develop a search field application, follow the below steps: -

  • Add dependencies to pom.xml file.

pom.xml

  • Create the configuration classes
    Instead of XML, we perform annotation-based configuration. So, we create two classes and specify the required configuration in it.

DemoAppConfig.java

MySpringMvcDispatcherServletInitializer.java

  • Create the entity class
    Here, we are creating an Entity/POJO (Plain Old Java Object) class.

User.java

  • Create the DAO interface
    Here, we are creating the DAO interface to perform database related operations.

UserDAO.java

  • Create the DAO interface implementation class

UserDAOImpl.java

  • Create the service layer interface
    Here, we are creating a service layer interface that acts as a bridge between DAO and Entity classes.

UserService.java

  • Create the service layer implementation class

UserServiceImpl.java

  • Create the controller class

UserController.java

  • Creating the properties file
    Here, we are creating the properties file inside the src/main/resources in the project.

persistence-mysql.properties

Angular Module

Let's see the directory structure of Angular we need to follow:

Spring Angular Search Field Application
  • Create an Angular project

Let's create an Angular project by using the following command:

ng new SearchFieldExample

Spring Angular Search Field Application
Spring Angular Search Field Application

Here, SearchFieldExample is the name of the project.

Install Bootstrap CSS framework

Use the following command to install bootstrap in the project.

npm install bootstrap@3.3.7 --save

Now, include the following code in the style.css file.

  • Generate Component
    Open the project in visual studio and then use the following command to generate Angular component:
    ng g c ShowData
Spring Angular Search Field Application

Let's also create a service class by using the following command: -

ng g s services/User

Spring Angular Search Field Application
  • Edit the app.module.ts file
    • Import HttpModule - Here, we are importing HttpModule for server requests and specifying it in imports array.
    • Register Service class - Here, we are mentioning the service class in providers array.
    • Import ReactiveFormsModule - Here, we are importing ReactiveFormsModule for reactive forms and specifying it in imports array.
  • Edit the app.component.html file
  • Create the User.ts class

Let's create a class by using the following command: -

ng g class classes/User

Spring Angular Search Field Application

Now, specify the required fields within the User class.

The purpose of this class is to map the specified fields with the fields of the Spring entity class.

  • Edit the user.service.ts file
  • Edit the show-data.component.ts file
  • Edit the show-data.component.html file

Once completed, enter the URL http://localhost:4200/ at the web browser. The following web page occurs:

Spring Angular Search Field Application

Now, we can search the data by providing a specific keyword in the search field.

Search by name:

Spring Angular Search Field Application

Search by email-id:

Spring Angular Search Field Application
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