spring-boot读取props和yml配置文件的方法

<dependencies> 
 <dependency> 
  <groupid>org.springframework.boot</groupid> 
  <artifactid>spring-boot-starter-web</artifactid> 
 </dependency>  
 <dependency> 
  <groupid>org.springframework.boot</groupid> 
  <artifactid>spring-boot-starter-test</artifactid> 
  <scope>test</scope> 
 </dependency> 
</dependencies> 

@springbootapplication 
@enableconfigurationproperties({propsconfig.class,ymlconfig.class}) 
public class readapplication { 
 public static void main(string[] args) { 
  springapplication.run(readapplication.class, args); 
 } 
} 

master.ds.driverclassname=com.mysql.jdbc.driver 
master.ds.url=jdbc:mysql://localhost:3306/test 
master.ds.username=root 
master.ds.password=root 
master.ds.filters=stat 
master.ds.maxactive=20 
master.ds.initialsize=1 
master.ds.maxwait=60000 
master.ds.minidle=10 
master.ds.timebetweenevictionrunsmillis=60000 
master.ds.minevictableidletimemillis=300000 
master.ds.validationquery=select 'x' 
master.ds.testwhileidle=true 
master.ds.testonborrow=false 
master.ds.testonreturn=false 
master.ds.poolpreparedstatements=true 
master.ds.maxopenpreparedstatements=100 
master.ds.removeabandoned=true 
master.ds.removeabandonedtimeout=1800 
master.ds.logabandoned=true 

@configurationproperties(prefix = "master.ds",locations = "classpath:application.properties") 
public class propsconfig { 
 private string driverclassname; 
 private string url; 
 private string username; 
 private string password; 
 private string filters; 
 private string maxactive; 
 private string initialsize; 
 private string maxwait; 
 public string getdriverclassname() { 
  return driverclassname; 
 } 
 public void setdriverclassname(string driverclassname) { 
  this.driverclassname = driverclassname; 
 } 
 public string geturl() { 
  return url; 
 } 
 public void seturl(string url) { 
  this.url = url; 
 } 
 public string getusername() { 
  return username; 
 } 
 public void setusername(string username) { 
  this.username = username; 
 } 
 public string getpassword() { 
  return password; 
 } 
 public void setpassword(string password) { 
  this.password = password; 
 } 
 public string getfilters() { 
  return filters; 
 } 
 public void setfilters(string filters) { 
  this.filters = filters; 
 } 
 public string getmaxactive() { 
  return maxactive; 
 } 
 public void setmaxactive(string maxactive) { 
  this.maxactive = maxactive; 
 } 
 public string getinitialsize() { 
  return initialsize; 
 } 
 public void setinitialsize(string initialsize) { 
  this.initialsize = initialsize; 
 } 
 public string getmaxwait() { 
  return maxwait; 
 } 
 public void setmaxwait(string maxwait) { 
  this.maxwait = maxwait; 
 } 
} 

@runwith(springjunit4classrunner.class) 
@springboottest(classes = readapplication.class) 
public class readapplicationpropstests { 
 @autowired 
 private propsconfig propsconfig; 
 @test 
 public void testdisplaypropsvalue() { 
  string driverclassname = propsconfig.getdriverclassname(); 
  string url = propsconfig.geturl(); 
  string username = propsconfig.getusername(); 
  string password = propsconfig.getpassword();   
  string filters = propsconfig.getfilters(); 
  string maxactive = propsconfig.getmaxactive(); 
  string initialsize = propsconfig.getinitialsize(); 
  string maxwait = propsconfig.getmaxwait();     
  system.out.println("driverclassname -> " + driverclassname); 
  system.out.println("url -> " + url); 
  system.out.println("username -> " + username); 
  system.out.println("password -> " + password);   
  system.out.println("initialsize -> " + initialsize); 
  system.out.println("maxwait -> " + maxwait); 
   
 } 
} 

driverclassname -> com.mysql.jdbc.driver 
url -> jdbc:mysql://localhost:3306/test 
username -> root 
password -> root 
initialsize -> 1 
maxwait -> 60000 

myprops: #自定义的属性和值 
 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 

@configurationproperties(prefix="myprops") //application.yml中的myprops下的属性 
public class ymlconfig { 
 private 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; 
 } 
  
 public void setsimpleprop(string simpleprop) { 
  this.simpleprop = simpleprop; 
 } 
  
 public list<map<string, string>> getlistprop1() { 
  return listprop1; 
 } 
 public list<string> getlistprop2() { 
  return listprop2; 
 } 
 
 public string[] getarrayprops() { 
  return arrayprops; 
 } 
 
 public void setarrayprops(string[] arrayprops) { 
  this.arrayprops = arrayprops; 
 } 
 
 public map<string, string> getmapprops() { 
  return mapprops; 
 } 
 
 public void setmapprops(map<string, string> mapprops) { 
  this.mapprops = mapprops; 
 } 
} 

@runwith(springjunit4classrunner.class) 
@springboottest(classes = readapplication.class) 
public class readapplicationymltests { 
 @autowired 
 private ymlconfig ymlconfig;  
 @test 
 public void testdisplayymlvalue() throws jsonprocessingexception { 
  system.out.println("simpleprop: " + ymlconfig.getsimpleprop());    
  objectmapper objectmapper = new objectmapper(); 
  system.out.println("arrayprops: " + objectmapper.writevalueasstring(ymlconfig.getarrayprops())); 
  system.out.println("listprop1: " + objectmapper.writevalueasstring(ymlconfig.getlistprop1())); 
  system.out.println("listprop2: " + objectmapper.writevalueasstring(ymlconfig.getlistprop2())); 
  system.out.println("mapprops: " + objectmapper.writevalueasstring(ymlconfig.getmapprops()));  
 } 
} 

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"}