目录

• SpringBoot yaml作为配置文件遇到的坑
  • 背景
  • 感觉修改一下比较好，类似这样：
• SpringBoot-yaml配置注入
  • yaml基础语法
    • 字面量：普通的值 [ 数字，布尔值，字符串 ]
    • 对象、Map（键值对）
    • 数组（ List、set ）
    • 修改SpringBoot的默认端口号
  • yaml注入配置文件
    • 原来的方法
    • Yaml方法
    • @PropertySource的使用
    • @configurationProperties的使用
    • 结论

Skipped (empty) config file "file:/E:/workspace/union-service/union-service-dao/target/test-classes/application.yml" (classpath:/application.yml)

public PropertySource<?> load(Resource resource, String group, String name,  String profile) throws IOException {if (isFile(resource)) {  String sourceName = generatePropertySourceName(name, profile);  for (PropertySourceLoader loader : this.loaders) {  if (canLoadFileExtension(loader, resource)) {    PropertySource<?> specific = loader.load(sourceName, resource,      profile);    addPropertySource(group, specific, profile);    return specific;  }  }}return null;}

@Overridepublic PropertySource<?> load(String name, Resource resource, String profile)  throws IOException {if (ClassUtils.isPresent("org.yaml.snakeyaml.Yaml", null)) {  Processor processor = new Processor(resource, profile);  Map<String, Object> source = processor.process();  if (!source.isEmpty()) {  return new MapPropertySource(name, source);  }}return null;}

@Overridepublic PropertySource<?> load(String name, Resource resource, String profile)  throws IOException {if (ClassUtils.isPresent("org.yaml.snakeyaml.Yaml", null)) {  Processor processor = new Processor(resource, profile);  Map<String, Object> source = processor.process();  if (!source.isEmpty()) {  return new MapPropertySource(name, source);  }} else {  logger.warn("Found " + name + " while lacking of snakeyaml");}return null;}

yaml name: "kuang  shen"

yaml name: ‘kuang  shen"

#对象、Map格式k:     v1:    v2:

student:    name: qinjiang    age: 3

student: {name: qinjiang,age: 3}

pets: - cat - dog - pig

pets: [cat,dog,pig]

server:  port: 8082

package com.kuang.springboot.pojo;@Component  //注册bean到容器中public class Dog {    private String name;    private Integer age;        //有参无参构造、get、set方法、toString()方法  }

@Component //注册beanpublic class Dog {    @Value("阿黄")    private String name;    @Value("18")    private Integer age;}

@SpringBootTestclass DemoApplicationTests {    @Autowired //将狗狗自动注入进来    Dog dog;    @Test    public void contextLoads() {        System.out.println(dog); //打印看下狗狗对象    }}

@Component //注册bean到容器中public class Person {    private String name;    private Integer age;    private Boolean happy;    private Date birth;    private Map<String,Object> maps;    private List<Object> lists;    private Dog dog;        //有参无参构造、get、set方法、toString()方法  }

person:  name: qinjiang  age: 3  happy: false  birth: 2000/01/01  maps: {k1: v1,k2: v2}  lists:   - code   - girl   - music  dog:    name: 旺财    age: 1

/*@ConfigurationProperties作用：将配置文件中配置的每一个属性的值，映射到这个组件中；告诉SpringBoot将本类中的所有属性和配置文件中相关的配置进行绑定参数 prefix = “person” : 将配置文件中的person下面的所有属性一一对应*/@Component //注册bean@ConfigurationProperties(prefix = "person")public class Person {    private String name;    private Integer age;    private Boolean happy;    private Date birth;    private Map<String,Object> maps;    private List<Object> lists;    private Dog dog;}

@SpringBootTestclass DemoApplicationTests {    @Autowired    Person person; //将person自动注入进来    @Test    public void contextLoads() {        System.out.println(person); //打印person信息    }}

name=kuangshen

@PropertySource(value = "classpath:person.properties")@Component //注册beanpublic class Person {    @Value("${name}")    private String name;    ......  }