1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
package com.example.spring.bank;
import java.math.BigDecimal;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class BankApp {
/**
* @param args
*/
public static void main(String[] args) {
AbstractApplicationContext ctx = new ClassPathXmlApplicationContext(new String[] {"classpath:META-INF/spring/applicationContext.xml"});
// Register a shutdown hook with the JVM runtime, closing this context on JVM shutdown unless it has already been closed at that time.
// Delegates to doClose() for the actual closing procedure.
// This will trigger the destroy-method of the DataSource in our application (for example, in case of unexpected JVM shutdown).
ctx.registerShutdownHook();
AccountManager am = ctx.getBean("accountManager", AccountManager.class);
// Create an account
System.out.println("Creating a new account...");
Account account = am.create();
System.out.println("Account number: " + account.getAccountNumber());
System.out.println("Balance: " + account.getBalance());
// Deposit some amount
System.out.println("Depositing 200.0...");
account = am.deposit(account.getAccountNumber(), new BigDecimal("200.0"));
System.out.println("New balance: " + account.getBalance());
// am.chargeForLowBalance(150, 10);
System.out.println("Withdrawing 50.0...");
account = am.withdraw(account.getAccountNumber(), new BigDecimal("50.0"));
System.out.println("New balance: " + account.getBalance());
// Create another account
Account account2 = am.create();
// Try transfer
System.out.println("Trying transfer, 1st account balance: " + account.getBalance());
account = am.transfer(account.getAccountNumber(), account2.getAccountNumber(), new BigDecimal("10.00"));
System.out.println("After transfer, 1st account balance: " + account.getBalance());
System.out.println("Trying transfer to possibly non-existing account, 1st account balance: " + account.getBalance());
try {
account = am.transfer(account.getAccountNumber(), 5000, new BigDecimal("10.00"));
} catch (Exception e) {
System.err.println("An error occurred!");
e.printStackTrace();
}
account = am.find(account.getAccountNumber());
System.out.println("After transfer, 1st account balance: " + account.getBalance());
ctx.close();
}
}
|
