1 /**
 2  * 业务整体需要使用完整的synchronized，保持业务的原子性。
 3  * @author alienware
 4  *
 5  */
 6 public class DirtyRead {
 7 
 8     private String username = "bjsxt";
 9     private String password = "123";
10     
11     public synchronized void setValue(String username, String password){
12         this.username = username;
13         
14         try {
15             Thread.sleep(2000);
16         } catch (InterruptedException e) {
17             e.printStackTrace();
18         }
19         
20         this.password = password;
21         
22         System.out.println("setValue最终结果：username = " + username + " , password = " + password);
23     }
24     
25     public void getValue(){
26         System.out.println("getValue方法得到：username = " + this.username + " , password = " + this.password);
27     }
28     
29     
30     public static void main(String[] args) throws Exception{
31         
32         final DirtyRead dr = new DirtyRead();
33         Thread t1 = new Thread(new Runnable() {
34             @Override
35             public void run() {
36                 dr.setValue("z3", "456");        
37             }
38         });
39         t1.start();
40         Thread.sleep(1000);
41         
42         dr.getValue();
43     }
44     
45     
46     
47 }