Spring-策略模式
设计模式
public interface Strategy {
Object verificate(StrategyBo strategyBo);
}
1
2
3
2
3
@Component("aStrategy")
public class AStrategy implements Strategy {
@Override
public Object verificate(StrategyBo strategyBo) {
// ...
return null;
}
}
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
@Component("bStrategy")
public class BStrategy implements Strategy {
@Override
public Object verificate(StrategyBo strategyBo) {
// ...
return null;
}
}
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
@Getter
@AllArgsConstructor
@NoArgsConstructor
public enum BizType {
A("a", "aStrategy"),
B("b", "bStrategy");
private String features;
private String service;
public static BizType get(String features) {
for(BizType o : values()) {
if(o.features.equals(features)) {
return o;
}
}
return null;
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
@Component
public class StrategyFactory {
@Autowired
private Map<String, Strategy> strategyMap;
public Strategy creator(String serviceName){
return strategyMap.get(serviceName);
}
}
1
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
7
8
9
10
11
@Service
public class TestService {
@Autowired
private StrategyFactory strategyFactory;
public Object test(String features) {
if (BizType.get(features) != null) {
StrategyBo strategyBo = new StrategyBo();
return strategyFactory.creator(BizType.get(features).getService()).verificate(strategyBo);
}
return null;
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2
3
4
5
6
7
8
9
10
11
12
13
14
15
参考：
https://blog.csdn.net/kismet2399/article/details/83385197 (opens new window)