项目下载地址：http://download.csdn.net/detail/aqsunkai/9805821
（一）yml配置文件：
pom.xml加入依赖：
<!-- 支持 @ConfigurationProperties 注解 --> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-configuration-processor --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <version>${spring-boot.version}</version> </dependency>
在application.yml文件中加上：
#自定义的属性和值
myYml:
simpleProp: simplePropValue
arrayProps: 1,2,3,4,5
listProp1:
- name: abc
value: abcValue
- name: efg
value: efgValue
listProp2:
- config2Value1
- config2Vavlue2
mapProps:
key1: value1
key2: value2
使用一个java类获取yml文件的内容：
package com.sun.configuration; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /** * 加载yaml配置文件的方法 * Created by sun on 2017-1-15. * spring-boot更新到1.5.2版本后locations属性无法使用 * @PropertySource注解只可以加载proprties文件,无法加载yaml文件 * 故现在把数据放到application.yml文件中,spring-boot启动时会加载 */ @Component //@ConfigurationProperties(locations = {"classpath:config/myProps.yml"},prefix = "myProps") @ConfigurationProperties(prefix = "myYml") public class YmlConfig { String simpleProp; private String[] arrayProps; private List<Map<String, String>> listProp1 = new ArrayList<>(); //接收prop1里面的属性值 private List<String> listProp2 = new ArrayList<>(); //接收prop2里面的属性值 private Map<String, String> mapProps = new HashMap<>(); //接收prop1里面的属性值 public String getSimpleProp() { return simpleProp; } //String类型的一定需要setter来接收属性值；maps, collections, 和 arrays 不需要 public void setSimpleProp(String simpleProp) { this.simpleProp = simpleProp; } public String[] getArrayProps() { return arrayProps; } public void setArrayProps(String[] arrayProps) { this.arrayProps = arrayProps; } public List<Map<String, String>> getListProp1() { return listProp1; } public void setListProp1(List<Map<String, String>> listProp1) { this.listProp1 = listProp1; } public List<String> getListProp2() { return listProp2; } public void setListProp2(List<String> listProp2) { this.listProp2 = listProp2; } public Map<String, String> getMapProps() { return mapProps; } public void setMapProps(Map<String, String> mapProps) { this.mapProps = mapProps; } }
通过依赖注入就可以获取该对象：
@Autowired private YmlConfig config;
方法内获取值：
ObjectMapper objectMapper = new ObjectMapper(); //测试加载yml文件 System.out.println("simpleProp: " + config.getSimpleProp()); System.out.println("arrayProps: " + objectMapper.writeValueAsString(config.getArrayProps())); System.out.println("listProp1: " + objectMapper.writeValueAsString(config.getListProp1())); System.out.println("listProp2: " + objectMapper.writeValueAsString(config.getListProp2())); System.out.println("mapProps: " + objectMapper.writeValueAsString(config.getMapProps()));
（二）properties配置文件：
使用@PropertySource注解加载配置文件，该注解无法加载yml配置文件。使用@Value注解获得文件中的参数值
package com.sun.configuration; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.PropertySource; import org.springframework.context.support.PropertySourcesPlaceholderConfigurer; /** * 加载properties配置文件,在方法中可以获取 * abc.properties文件不存在,验证ignoreResourceNotFound属性 * 加上encoding = "utf-8"属性防止中文乱码,不能为大写的"UTF-8" * Created by sun on 2017-3-30. */ @Configuration @PropertySource(value = {"classpath:/config/propConfigs.properties","classpath:/config/abc.properties"}, ignoreResourceNotFound = true,encoding = "utf-8") public class PropConfig { // PropertySourcesPlaceholderConfigurer这个bean， // 这个bean主要用于解决@value中使用的${…}占位符。 // 假如你不使用${…}占位符的话，可以不使用这个bean。 @Bean public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() { return new PropertySourcesPlaceholderConfigurer(); } } 获取properties文件参数值有两种方法，一种获得Environment 的对象，第二种就是@Value注解 @Autowired private Environment env; @Value("${age}") String name; @RequestMapping("/") @ResponseBody String home(HttpServletRequest req) throws JsonProcessingException, UnsupportedEncodingException { logger.info("测试通过！！！"); ObjectMapper objectMapper = new ObjectMapper(); //测试加载yml文件 System.out.println("simpleProp: " + config.getSimpleProp()); System.out.println("arrayProps: " + objectMapper.writeValueAsString(config.getArrayProps())); System.out.println("listProp1: " + objectMapper.writeValueAsString(config.getListProp1())); System.out.println("listProp2: " + objectMapper.writeValueAsString(config.getListProp2())); System.out.println("mapProps: " + objectMapper.writeValueAsString(config.getMapProps())); //测试加载properties文件 System.out.println(env.getProperty("name"));//孙凯 System.out.println(env.getProperty("abc"));//null System.out.println(name);//26 return "Hello World!"; }