一、系統(tǒng)啟動(dòng)后注入配置
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
|
package com.example.config;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.PropertySource;import org.springframework.core.env.Environment;/** * @author: GrandKai * @create: 2016-09-01 11:24 */@Configuration@PropertySource(ignoreResourceNotFound = true, value = {"classpath:/config/email.properties","classpath:/config/email.yml"}, name = "email")public class Config {} |
需要在ApplicationContext中注冊(cè)配置
|
1
2
|
AnnotationConfigEmbeddedWebApplicationContext context = (AnnotationConfigEmbeddedWebApplicationContext) app.run("參數(shù)1");context.register(Config.class); |
用以下方式取值
|
1
2
|
Environment env = context.getEnvironment();System.out.println(env.getProperty("address")); |
email.yml文件配置如下：
|
1
2
|
server: address: 127.0.0.1 |
二、在命令行傳入注入到程序中
|
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
public class Main { public static void main(String... args) { //initialize the command line parsing stuff OptionParser parser = new OptionParser(); parser.accepts("greeting").withRequiredArg(); OptionSet options = parser.parse(args); //create the actual Spring PropertySource PropertySource<?> ps = new JOptCommandLinePropertySource(options); //setup the Spring context AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(); ctx.getEnvironment().getPropertySources().addLast(ps); //register the property source with the environment ctx.register(Greeter.class); ctx.refresh(); Greeter greeter = ctx.getBean(Greeter.class); greeter.sayGreeting(); }}@Componentclass Greeter { @Inject private Environment env; //the following would also work //@Value("${greeting}") //private String greeting; /** * Print out the 'greeting' property if it exists, and otherwise, "Welcome!". */ public void sayGreeting() { System.out.println(env.getProperty("greeting", "Welcome!")); }}public static void main(String [] args) { SimpleCommandLinePropertySource ps = new SimpleCommandLinePropertySource(args); @SuppressWarnings("resource") AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(); ctx.getEnvironment().getPropertySources().addFirst(ps); ctx.register(ApplicationConfig.class); ctx.refresh();}@Configuration@EnableScheduling@ComponentScan("com.mycompany.package")@PropertySource( value = {"classpath:/application.properties", "file:${config.location}"}, ignoreResourceNotFound = true )class ApplicationConfig { @Bean public static PropertySourcesPlaceholderConfigurer propertyConfigurer() { return new PropertySourcesPlaceholderConfigurer(); }}@Componentclass MyComponent { @Value("${my.property.data}") private String myPropertyData; @Scheduled(fixedDelayString = "${schedule.delay.period}") public void run() { : }} |
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：http://www.jianshu.com/p/eadfecea1f2d
