Thực hành Web Services Lab 3 + 4

IT Research Department @BKAP 2015 Page 1 / 12Lab 03 - 04 Web Service Endpoints Designing Web Service Clients Mục tiêu - Xây dựng web service thanh toán - Xây dựng Client test các dịch

IT Research Department @BKAP 2015 Page 1 / 12

Lab 03 - 04 Web Service Endpoints Designing Web Service Clients

Mục tiêu

- Xây dựng web service thanh toán

- Xây dựng Client test các dịch vụ

Phần I Bài tập step by step

Bài 1

Cho cơ sở dữ liệu thanh toán ngân hàng BankDB

 AccountBank

 Merchant

 TransactionBank

Xây dựng các dịch vụ:

 CheckOrder: Kiểm tra tính chính xác của tài khoản, số dư khả dụng của tk khách hàng

 FinishOrder: Thực hiện thanh toán cho khách hàng, trừ số tiền tài khoản khách hàng và

cộng vào tài khoản được thanh toán

Xây dựng client thực hiện test các dịch vụ

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Step 1: Xây dựng các procedure thực hiện nghiệp vụ của các dịch vụ

USE [BankDB]

GO

============================================

Author: Quangnd

Create date: 20161109

Description: Dich vu CheckOrder

=============================================

CREATE PROCEDURE [dbo].[CheckOrder]

@merchantName nvarchar(50),

@accNo nvarchar(30),

@accountName nvarchar(50),

@paymentAmount float,

@returncode char(2) OUTPUT,

@transactionId int OUTPUT

AS

BEGIN

Kiem tra tat ca dieu kien xem co thanh toan duoc hay khong

Declare @checkMerchant int;

Declare @merchantId int;

Declare @accountid int;

Select @checkMerchant = count(*) from Merchant m where m.MerchantName = @merchantName and

m.Status = 1;

If @checkMerchant > 0

BEGIN

lay merchantid tu @merchantName truyen vao Select @merchantId = m.MerchantId from Merchant m;

Declare @checkAcc int;

Kiem tra tai khoan co ton tai hay khong Select @checkAcc = count(*) from AccountBank a where a.AccName = @accountName and a.AccNo =

@accNo and a.Status = 1;

if @checkAcc>0 BEGIN Tai khoan ton tai > Kiem tra so du kha dung cua tai khoan co du thanh toan hay khong Lay ma tai khoan

Select @accountid = a.AccountId from AccountBank a;

Kiem tra so du kha dung Declare @checkAvailableBalance int;

Select @checkAvailableBalance = count(*) from AccountBank a where a.AccountId =

@accountid and a.AvailableBalance>@paymentAmount;

if @checkAvailableBalance>0 set @returncode = '00';

else set @returncode = '03';

END else set @returncode = '02';

END

else

Set @returncode = '01';

Neu dieu kien thoa man, tao ban ghi trong transaction

if @returncode = '00'

BEGIN

Insert into TransactionBank values(@merchantId,@accountid,@paymentAmount,GETDATE(),N'Thanh toán cho trang web rau sạch',0);

Commit;

Declare @maxTrans int;

Select @maxTrans = max(.TransachtionId) from TransactionBank t;

Set @transactionId = @maxTrans;

END

else

Set @transactionId = 0;

END

 FinishOrder

USE [BankDB]

GO

=============================================

Author: Quangnd

Create date: 20161109

Description: Dich vu FinishOrder

=============================================

CREATE PROCEDURE [dbo].[FinishOrder]

@transactionId int,

@merchantName nvarchar(50),

@returnCode char(2) OUTPUT

AS

BEGIN

Kiem tra co transaction khong

Declare @checkTransaction int;

Declare @accountIdKH int;

Declare @accountIdWeb int;

lay tai khoan cua trang web

Select @accountIdWeb = m.AccountId from Merchant m where m.MerchantName = @merchantName;

Declare @paymentAmount float;

Select @checkTransaction = count(*) from TransactionBank t where t.TransachtionId = @transactionId;

if @checkTransaction>0

BEGIN

Select @paymentAmount = t.BalancePayment from TransactionBank t where t.TransachtionId =

@transactionId;

Select @accountIdKH = t.AccountId from TransactionBank t where t.TransachtionId = @transactionId; Kiem tra lai so du kha dung

Declare @checkSDKD int;

Select @checkSDKD = count(*) from AccountBank a where a.AccountId = @accountIdKH and a.AvailableBalance>@paymentAmount;

if @checkSDKD>0 BEGIN Cong vao so du tk Web Declare @amountWeb float;

Declare @updateWeb float;

Select @amountWeb = a.AvailableBalance from AccountBank a where a.AccountId =

@accountIdWeb;

IT Research Department @BKAP 2015 Page 5 / 12

Set @updateWeb = @amountWeb + @paymentAmount;

Update AccountBank Set AvailableBalance = @updateWeb Where AccountId = @accountIdWeb;

Tru vao so du tk KH Declare @amountKH float;

Declare @updateKH float;

Select @amountKH = a.AvailableBalance from AccountBank a where a.AccountId =

@accountIdKH;

Set @updateKH = @amountKH - @paymentAmount;

Update AccountBank Set AvailableBalance = @updateKH Where AccountId = @accountIdKH;

Cap nhat trang thai cua Transaction Update TransactionBank

Set Status = 1 Where TransachtionId = @transactionId;

Tra ve returncode Set @returnCode = '00' END

Else So du khong du de thanh toan set @returnCode = '02';

END

Else

Khong ton tai transaction

set @returnCode = '01';

END

Step 2: Tạo Web Application

 File  New Project  Java Web  Web Application

 Project Name: PaymentApp

 Server: GlassFish Server

Step 3: Tạo lớp java ConnectionDB.java để kết nối cơ sở dữ liệu

 PaymentApp  New  Other  Java  Java Class

 Class Name: ConnectionDB

 Package: util

 ConnectionDB.java

package util;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.SQLException;

import java.util.logging.Level;

import java.util.logging.Logger;

/**

*

* @author Quang

*/

public class ConnectionDB {

private static final String URL = "jdbc:sqlserver://localhost:1433;databaseName=BankDB";

private static final String DB_DRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver";

private static final String user_db = "sa";

private static final String pass_db = "Gacon1984";

public static Connection openConnection() {

Connection conn = null;

try {

Class.forName(DB_DRIVER);

} catch (ClassNotFoundException ex) {

Logger.getLogger(ConnectionDB.class.getName()).log(Level.SEVERE, null, ex);

}

try {

conn = DriverManager.getConnection(URL, user_db, pass_db);

} catch (SQLException ex) {

Logger.getLogger(ConnectionDB.class.getName()).log(Level.SEVERE, null, ex);

}

return conn;

}

public static void closeConnection(Connection conn, CallableStatement callableSt) {

if (conn != null) {

try {

conn.close();

} catch (SQLException ex) {

Logger.getLogger(ConnectionDB.class.getName()).log(Level.SEVERE, null, ex);

}

}

if (callableSt != null) {

try {

callableSt.close();

} catch (SQLException ex) {

Logger.getLogger(ConnectionDB.class.getName()).log(Level.SEVERE, null, ex);

}

}

}

}

Step 4: Tạo Web Service PaymentWebService

 PaymentApp  New  Other  Web Services  Web Service

IT Research Department @BKAP 2015 Page 7 / 12

 Web Service Name: PaymentWebService

 Package: ws

 Chọn Create Web Service from Scratch

 Tạo các dịch vụ cho PaymentWebService

 CheckOrder

 FinishOrder

 PaymentWebService.java

package ws;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.Types;

import javax.jws.WebService;

import javax.jws.WebMethod;

import util.ConnectionDB;

/**

*

* @author Quang

*/

@WebService(serviceName = "PaymentWebservice")

public class PaymentWebservice {

/**

* Web service operation

*

* @param merchantName

* @param accNo

* @param accName

* @param paymentAmount

* @return

*/

@WebMethod(operationName = "checkOrder")

public String checkOrder(String merchantName, String accNo, String accName, float paymentAmount) {

Connection conn = null;

String returnSt = "";

CallableStatement callableSt = null;

try {

conn = ConnectionDB.openConnection();

callableSt = conn.prepareCall("{call CheckOrder(?,?,?,?,?,?)}");

callableSt.setString(1, merchantName);

callableSt.setString(2, accNo);

callableSt.setString(3, accName);

callableSt.setFloat(4, paymentAmount);

callableSt.registerOutParameter(5, Types.CHAR);

callableSt.registerOutParameter(6, Types.INTEGER);

callableSt.execute();

String returnCode = callableSt.getString(5);

int transactionId = callableSt.getInt(6);

returnSt = returnCode + "#" + transactionId;

} catch (Exception e) {

e.printStackTrace();

}

return returnSt;

}

public String finishOrder(int transactionid, String merchantName) {

Connection conn = null;

String returnSt = "";

CallableStatement callableSt = null;

try {

conn = ConnectionDB.openConnection();

callableSt = conn.prepareCall("{call FinishOrder(?,?,?)}");

callableSt.setInt(1, transactionid);

callableSt.setString(2, merchantName);

callableSt.registerOutParameter(3, Types.CHAR);

callableSt.execute();

returnSt = callableSt.getString(3);

} catch (Exception e) {

e.printStackTrace();

}

return returnSt;

}

}

 Ứng dụng sau khi hoàn thành

Step 5: Build, Deploy and Test Web Service

IT Research Department @BKAP 2015 Page 9 / 12

 Chuẩn bị dữ liệu Test

 Test Web Service

IT Research Department @BKAP 2015 Page 11 / 12

Phần II Bài Tập Tự Làm

Bài 2: Xây dựng ứng dụng thực hiện thanh toán chuyển khoản để test các dịch vụ của web service trong bài 1 đã xây dựng