Creating a web service in Java/Eclipse to get values from a database

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I need to create a web service in Java using Eclipse. My requirement is to connect to a database with that web service and retrieve some values. Please send me at least one example program that shows how to achieve this. I have Googled, but the results I got didn't make things clear to me.

Hi @Rohith this is anatomy Web Services for connect to database,

@WebService(serviceName = "your_service_name")
public class YourClass {

    public YourClass() {
       super();
    }

    @WebMethod(operationName = "your_operation_name")
    @WebResult(name = "your_response_name")
    public YourDTORes your_method_name(@WebParam(name = "your") YourDTOReq request) {
         YourDTORes response = new YourDTORes();
         YourClassBD bd = null; // create a connection to database
         Connection conn = null;
         Statement st = null;
         String sql = null;

         try {
           bd = new YourClassBD();
           conn = bd.getYourMethodConnection();

           sql = "select yourField from yourTable " +
                "where yourField=2000 " +
                "AND yourField = stuff";
           st = conn.createStatement();
           if(st.execute(sql)) {
             ResultSet rs = st.getResultSet();
             if(rs.next()) {
               System.out.println("SUCCESS INSERT: " + rs.getString(1));
               return response;
            } else {
                    response.setMessageErr("ERROR.");
                    return response;
                }
           }
         } catch(Exception e) {
                response.setMessageErr("Service ERROR.");
                e.printStackTrace();
                return response;
         }
         return response;
    }
}

The code above is a simple example for you connected to database. If you have problem let me know. Thxs.

I hope help you. :)

Eclipse Corner Article: Creating Database Web Applications with , Hi @Rohith this is anatomy Web Services for connect to database, @WebService​(serviceName = "your_service_name") public class YourClass { public  Easy & Cheap Web Building Deals. Free Domain + Your Own Website = From $1.99!

this is the sample for accessing database from jsp

http://www.roseindia.net/jsp/connect-jsp-mysql.shtml

[PDF] Implementing a simple web service, The Eclipse Web Tools and Data Tools Projects deliver a feature-rich Creating database-driven web applications in Java has traditionally involved a steep learning curve. Learning to use the Servlet API and JavaServer Page (JSP) technology to In your ECLIPSE_ROOT/plugins folder, you should have a folder named  I need to create a web service in Java using Eclipse. My requirement is to connect to a database with that web service and retrieve some values. Please send me at least one example program that shows how to achieve this. I have Googled, but the results I got didn't make things clear to me.

with getting started to web services springboot is a margic. just dive in to http://start.spring.io then create a project with the dependencies (web, mysql, and jpa) they also have sample projects that will help you get started with ease. consider checking youtube tutorials there are alot of resources there.

Java Web Service using Eclipse, (£1.75) and returns the new total value including VAT (£11.75). In addition, in order to actually make use of any web service we implement, we need Block 3 uses Eclipse, Java, Tomcat and the following plug-ins (extensions) to Eclipse. You can now create a java client to connect to your new web service and get the values from this web service. Go to the javasamples/two folder. Now create a new java file named UsersClient.java ( notepad UsersClient.java ) And copy the below code into it.

Create and Deploy Simple Web Service and Web Service Client in , This tutorial is to create a java web service and client using Eclipse IDE. (I have Apache Tomcat v7.0) and leave all other default values and  Just do the following: 1-Create the entity and make sure the table is created in the DB 2-Create the CRUD facade 3-Create the webservice as explained above. All i can still give you in the answer is give you some sample code how the client calls it(Ill paste it in 2 mins).

GlassFish and MySQL, Part 3: Creating and Using a Web Service, Install Apache Tomcat and add it to Eclipse in Server Tab – I'm using Tomcat version 9.0.10 . Create Web Service from Java Class in Eclipse Create Very Simple Jersey REST Service and Send JSON Data From Java Client · How to Create RESTful Java Client I'll try to have DB version out may be in coming weeks. Added to configuring the service implementation, we are instructing Eclipse to generate a web service client also. This will create a dynamic web java project and create a web service client for the web service created. Instead we can also create a java project and write a client to access the web service.

Creating a Web Service, This article shows how to build and use a web service that creates, retrieves, updates, and deletes information in a MySQL database. Part 2 shows how to develop a create, read, update, and delete (CRUD) web The application uses the Java Persistence API implemented in GlassFish to manage data persistence. Eclipse helps you organize your web applications using a type of project called a Dynamic Web Project. When you create a Dynamic Web Project, you must select a Java EE web application server, which provides libraries needed by the project. Follow these steps to create the project. Select File > New > Other.

Comments
  • What Have You Tried?
  • I did not have any idea about that concept, thats why i am asking you to send me at least one example program.
  • Welcome to Stack Overflow! At this site, we don't really do "suggest a tutorial for me" or "show me a working example" requests. If you have a specific question about a part of your code that's giving you trouble, we'll be happy to help!