Web Service

#persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
  <persistence-unit name="WebServiceExamplePU" transaction-type="RESOURCE_LOCAL">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <class>entity.Student</class>
    <properties>
      <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/student_mgr?serverTimezone=UTC"/>
      <property name="javax.persistence.jdbc.user" value="root"/>
      <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
      <property name="javax.persistence.jdbc.password" value=""/>
    </properties>
  </persistence-unit>
</persistence>

#Student.java

/*
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 * To change this template file, choose Tools | Templates
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 */
package entity;

import java.io.Serializable;
import java.util.Date;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;

/**
 *
 * @author Diep
 */
@Entity
@Table(name = "student")
@XmlRootElement
@NamedQueries({
    @NamedQuery(name = "Student.findAll", query = "SELECT s FROM Student s")
    , @NamedQuery(name = "Student.findByRollno", query = "SELECT s FROM Student s WHERE s.rollno = :rollno")
    , @NamedQuery(name = "Student.findByFullname", query = "SELECT s FROM Student s WHERE s.fullname = :fullname")
    , @NamedQuery(name = "Student.findByEmail", query = "SELECT s FROM Student s WHERE s.email = :email")
    , @NamedQuery(name = "Student.findByAddress", query = "SELECT s FROM Student s WHERE s.address = :address")
    , @NamedQuery(name = "Student.findByBirthday", query = "SELECT s FROM Student s WHERE s.birthday = :birthday")})
public class Student implements Serializable {

    private static final long serialVersionUID = 1L;
    @Id
    @Basic(optional = false)
    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "rollno")
    private String rollno;
    @Size(max = 50)
    @Column(name = "fullname")
    private String fullname;
    // @Pattern(regexp="[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?", message="Invalid email")//if the field contains email address consider using this annotation to enforce field validation
    @Size(max = 150)
    @Column(name = "email")
    private String email;
    @Size(max = 200)
    @Column(name = "address")
    private String address;
    @Column(name = "birthday")
    @Temporal(TemporalType.DATE)
    private Date birthday;

    public Student() {
    }

    public Student(String rollno) {
        this.rollno = rollno;
    }

    public String getRollno() {
        return rollno;
    }

    public void setRollno(String rollno) {
        this.rollno = rollno;
    }

    public String getFullname() {
        return fullname;
    }

    public void setFullname(String fullname) {
        this.fullname = fullname;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (rollno != null ? rollno.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Student)) {
            return false;
        }
        Student other = (Student) object;
        if ((this.rollno == null && other.rollno != null) || (this.rollno != null && !this.rollno.equals(other.rollno))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "entity.Student[ rollno=" + rollno + " ]";
    }
    
}

#CalculatorWS.java

/*
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 */
package ws;

import javax.jws.WebService;
import javax.jws.WebMethod;

/**
 *
 * @author Diep
 */
@WebService(serviceName = "CalculatorWS")
public class CalculatorWS {
    @WebMethod
    public float cong(float x, float y) {
        return x + y;
    }
    
    @WebMethod
    public float tru(float x, float y) {
        return x - y;
    }
    
    @WebMethod
    public float nhan(float x, float y) {
        return x * y;
    }
    
    @WebMethod
    public float chia(float x, float y) throws Exception {
        if(y == 0) {
            throw new Exception("Error >> devided by zero");
        }
        return x/y;
    }
}

#CalculatorWSPort.java

/*
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 */
package ws;

import javax.ws.rs.Consumes;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;

/**
 * REST Web Service
 *
 * @author Diep
 */
@Path("calculatorwsport")
public class CalculatorWSPort {

    private ws_client.CalculatorWS port;

    @Context
    private UriInfo context;

    /**
     * Creates a new instance of CalculatorWSPort
     */
    public CalculatorWSPort() {
        port = getPort();
    }

    /**
     * Invokes the SOAP method chia
     * @param arg0 resource URI parameter
     * @param arg1 resource URI parameter
     * @return an instance of java.lang.String
     */
    @GET
    @Produces("text/plain")
    @Consumes("text/plain")
    @Path("chia/")
    public String getChia(@QueryParam("arg0")
            @DefaultValue("0.0") float arg0, @QueryParam("arg1")
            @DefaultValue("0.0") float arg1) {
        try {
            // Call Web Service Operation
            if (port != null) {
                float result = port.chia(arg0, arg1);
                return new java.lang.Float(result).toString();
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     * Invokes the SOAP method tru
     * @param arg0 resource URI parameter
     * @param arg1 resource URI parameter
     * @return an instance of java.lang.String
     */
    @GET
    @Produces("text/plain")
    @Consumes("text/plain")
    @Path("tru/")
    public String getTru(@QueryParam("arg0")
            @DefaultValue("0.0") float arg0, @QueryParam("arg1")
            @DefaultValue("0.0") float arg1) {
        try {
            // Call Web Service Operation
            if (port != null) {
                float result = port.tru(arg0, arg1);
                return new java.lang.Float(result).toString();
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     * Invokes the SOAP method nhan
     * @param arg0 resource URI parameter
     * @param arg1 resource URI parameter
     * @return an instance of java.lang.String
     */
    @GET
    @Produces("text/plain")
    @Consumes("text/plain")
    @Path("nhan/")
    public String getNhan(@QueryParam("arg0")
            @DefaultValue("0.0") float arg0, @QueryParam("arg1")
            @DefaultValue("0.0") float arg1) {
        try {
            // Call Web Service Operation
            if (port != null) {
                float result = port.nhan(arg0, arg1);
                return new java.lang.Float(result).toString();
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     * Invokes the SOAP method cong
     * @param arg0 resource URI parameter
     * @param arg1 resource URI parameter
     * @return an instance of java.lang.String
     */
    @GET
    @Produces("text/plain")
    @Consumes("text/plain")
    @Path("cong/")
    public String getCong(@QueryParam("arg0")
            @DefaultValue("0.0") float arg0, @QueryParam("arg1")
            @DefaultValue("0.0") float arg1) {
        try {
            // Call Web Service Operation
            if (port != null) {
                float result = port.cong(arg0, arg1);
                return new java.lang.Float(result).toString();
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     *
     */
    private ws_client.CalculatorWS getPort() {
        try {
            // Call Web Service Operation
            ws_client.CalculatorWS_Service service = new ws_client.CalculatorWS_Service();
            ws_client.CalculatorWS p = service.getCalculatorWSPort();
            return p;
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }
}

#StudentWS.java

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package ws;

import entity.Student;
import java.util.List;
import javax.jws.WebService;
import javax.jws.WebMethod;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.persistence.Query;

/**
 *
 * @author Diep
 */
@WebService(serviceName = "StudentWS")
public class StudentWS {
    @WebMethod
    public List<Student> findAll() {
        //open connection
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("WebServiceExamplePU");
        EntityManager em = factory.createEntityManager();
        
        Query q = em.createNamedQuery("Student.findAll", Student.class);
        
        return q.getResultList();
    }
    
    @WebMethod
    public Student findById(String rollno) {
        //open connection
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("WebServiceExamplePU");
        EntityManager em = factory.createEntityManager();
        
        Student std = em.find(Student.class, rollno);
        
        return std;
    }
    
    @WebMethod
    public String save(Student std) {
        //open connection
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("WebServiceExamplePU");
        EntityManager em = factory.createEntityManager();
        
        Student stdFind = em.find(Student.class, std.getRollno());
        
        if(stdFind != null) {
            //update data
            em.getTransaction().begin();
            
            stdFind.setAddress(std.getAddress());
            stdFind.setBirthday(std.getBirthday());
            stdFind.setEmail(std.getEmail());
            stdFind.setFullname(std.getFullname());
            
            em.getTransaction().commit();
        } else {
            //insert data
            em.getTransaction().begin();
            em.persist(std);
            em.getTransaction().commit();
        }
        
        return "Success";
    }
    
    @WebMethod
    public String remove(String rollno) {
        //open connection
        EntityManagerFactory factory = Persistence.createEntityManagerFactory("WebServiceExamplePU");
        EntityManager em = factory.createEntityManager();
        
        Student stdFind = em.find(Student.class, rollno);
        
        em.getTransaction().begin();
        em.remove(stdFind);
        em.getTransaction().commit();
        
        return "success";
    }
}

#StudentWSPort.java

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package ws;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;
import javax.xml.bind.JAXBElement;
import ws_client1.Student;
import javax.xml.namespace.QName;
import ws_client1.FindAllResponse;
import ws_client1.StudentWS;

/**
 * REST Web Service
 *
 * @author Diep
 */
@Path("studentwsport")
public class StudentWSPort {

    private StudentWS port;

    @Context
    private UriInfo context;

    /**
     * Creates a new instance of StudentWSPort
     */
    public StudentWSPort() {
        port = getPort();
    }

    /**
     * Invokes the SOAP method remove
     * @param arg0 resource URI parameter
     * @return an instance of java.lang.String
     */
    @GET
    @Produces("text/plain")
    @Consumes("text/plain")
    @Path("remove/")
    public String getRemove(@QueryParam("arg0") String arg0) {
        try {
            // Call Web Service Operation
            if (port != null) {
                java.lang.String result = port.remove(arg0);
                return result;
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     * Invokes the SOAP method save
     * @param arg0 resource URI parameter
     * @return an instance of java.lang.String
     */
    @POST
    @Produces("text/plain")
    @Consumes("application/xml")
    @Path("save/")
    public String postSave(JAXBElement<Student> arg0) {
        try {
            // Call Web Service Operation
            if (port != null) {
                java.lang.String result = port.save(arg0.getValue());
                return result;
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     * Invokes the SOAP method findAll
     * @return an instance of javax.xml.bind.JAXBElement<ws_client1.FindAllResponse>
     */
    @GET
    @Produces("application/xml")
    @Consumes("text/plain")
    @Path("findall/")
    public JAXBElement<FindAllResponse> getFindAll() {
        try {
            // Call Web Service Operation
            if (port != null) {
                java.util.List<ws_client1.Student> result = port.findAll();

                class FindAllResponse_1 extends ws_client1.FindAllResponse {

                    FindAllResponse_1(java.util.List<ws_client1.Student> _return) {
                        this._return = _return;
                    }
                }
                ws_client1.FindAllResponse response = new FindAllResponse_1(result);
                return new ws_client1.ObjectFactory().createFindAllResponse(response);
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     * Invokes the SOAP method findById
     * @param arg0 resource URI parameter
     * @return an instance of javax.xml.bind.JAXBElement<ws_client1.Student>
     */
    @GET
    @Produces("application/xml")
    @Consumes("text/plain")
    @Path("findbyid/")
    public JAXBElement<Student> getFindById(@QueryParam("arg0") String arg0) {
        try {
            // Call Web Service Operation
            if (port != null) {
                ws_client1.Student result = port.findById(arg0);
                return new JAXBElement<ws_client1.Student>(new QName("http//ws_client1/", "student"), ws_client1.Student.class, result);
            }
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }

    /**
     *
     */
    private StudentWS getPort() {
        try {
            // Call Web Service Operation
            ws_client1.StudentWS_Service service = new ws_client1.StudentWS_Service();
            ws_client1.StudentWS p = service.getStudentWSPort();
            return p;
        } catch (Exception ex) {
            // TODO handle custom exceptions here
        }
        return null;
    }
}

#CalculatorAPI.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package aptech;

import ws.Exception_Exception;

/**
 *
 * @author Diep
 */
public class CalculatorAPI {

    public static float cong(float arg0, float arg1) {
        ws.CalculatorWS_Service service = new ws.CalculatorWS_Service();
        ws.CalculatorWS port = service.getCalculatorWSPort();
        return port.cong(arg0, arg1);
    }

    public static float tru(float arg0, float arg1) {
        ws.CalculatorWS_Service service = new ws.CalculatorWS_Service();
        ws.CalculatorWS port = service.getCalculatorWSPort();
        return port.tru(arg0, arg1);
    }

    public static float nhan(float arg0, float arg1) {
        ws.CalculatorWS_Service service = new ws.CalculatorWS_Service();
        ws.CalculatorWS port = service.getCalculatorWSPort();
        return port.nhan(arg0, arg1);
    }

    public static float chia(float arg0, float arg1) throws Exception_Exception {
        ws.CalculatorWS_Service service = new ws.CalculatorWS_Service();
        ws.CalculatorWS port = service.getCalculatorWSPort();
        return port.chia(arg0, arg1);
    }
    
    
}

#Main.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package aptech;

import java.util.Scanner;
import ws.Exception_Exception;

/**
 *
 * @author Diep
 */
public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception_Exception {
        // TODO code application logic here
        Scanner scan = new Scanner(System.in);
        int choose;
        float x, y, result = 0;
        
        do {
            showMenu();
            choose = scan.nextInt();
            
            System.out.println("Nhap x: ");
            x = scan.nextFloat();
            
            System.out.println("Nhap y: ");
            y = scan.nextFloat();
            
            switch(choose) {
                case 1:
                    result = CalculatorAPI.cong(x, y);
                    break;
                case 2:
                    result = CalculatorAPI.tru(x, y);
                    break;
                case 3:
                    result = CalculatorAPI.nhan(x, y);
                    break;
                case 4:
                    result = CalculatorAPI.chia(x, y);
                    break;
                case 5:
                    System.out.println("Thoat!!!");
                    break;
                default:
                    System.out.println("Failed!!!");
                    break;
            }
            System.out.println("Result: " + result);
        } while(choose != 5);
    }
    
    
    static void showMenu() {
        System.out.println("1. Cong");
        System.out.println("2. Tru");
        System.out.println("3. Nhan");
        System.out.println("4. Chia");
        System.out.println("5. Thoat");
        System.out.println("Chon: ");
    }
}

#StudentAPI.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package aptech;

import ws.Student;

/**
 *
 * @author Diep
 */
public class StudentAPI {

    public static java.util.List<ws.Student> findAll() {
        ws.StudentWS_Service service = new ws.StudentWS_Service();
        ws.StudentWS port = service.getStudentWSPort();
        return port.findAll();
    }

    public static Student findById(java.lang.String arg0) {
        ws.StudentWS_Service service = new ws.StudentWS_Service();
        ws.StudentWS port = service.getStudentWSPort();
        return port.findById(arg0);
    }

    public static String save(ws.Student arg0) {
        ws.StudentWS_Service service = new ws.StudentWS_Service();
        ws.StudentWS port = service.getStudentWSPort();
        return port.save(arg0);
    }

    public static String remove(java.lang.String arg0) {
        ws.StudentWS_Service service = new ws.StudentWS_Service();
        ws.StudentWS port = service.getStudentWSPort();
        return port.remove(arg0);
    }
    
}

#StudentFrame.form

<?xml version="1.0" encoding="UTF-8" ?>

<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
  <Properties>
    <Property name="defaultCloseOperation" type="int" value="3"/>
  </Properties>
  <SyntheticProperties>
    <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
    <SyntheticProperty name="generateCenter" type="boolean" value="false"/>
  </SyntheticProperties>
  <AuxValues>
    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
  </AuxValues>

  <Layout>
    <DimensionLayout dim="0">
      <Group type="103" groupAlignment="0" attributes="0">
          <EmptySpace min="0" pref="530" max="32767" attributes="0"/>
      </Group>
    </DimensionLayout>
    <DimensionLayout dim="1">
      <Group type="103" groupAlignment="0" attributes="0">
          <EmptySpace min="0" pref="474" max="32767" attributes="0"/>
      </Group>
    </DimensionLayout>
  </Layout>
</Form>

#StudentFrame.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package aptech;

/**
 *
 * @author Diep
 */
public class StudentFrame extends javax.swing.JFrame {

    /**
     * Creates new form StudentFrame
     */
    public StudentFrame() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 530, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 474, Short.MAX_VALUE)
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(StudentFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new StudentFrame().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    // End of variables declaration//GEN-END:variables
}