Springboot Learning: Reading the contents of the Yml and properties files

First, implement attribute injection in Springboot:

1), add pom dependent jar package;

1 <!--Support @ConfigurationProperties Annotations -  2     <!--Https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-configuration-processor -  3     <Dependency>  4       <groupId>Org.springframework.boot</groupId>  5       <Artifactid>Spring-boot-configuration-processor</Artifactid>  6       <version>${spring-boot.version}</version>  7     </Dependency>  

2), in the YML configuration file:

1 #pojo属性注入2 mybar: #pojo中的prefix值3 Name: Zhang San4 Arrs: Zhao, Qian, Sun, Li5 NameList:6 -Name: Liu7 value: Liu Bei8 -Name: Zhang9 value: Zhang FeiTen barnamelist: One -Number of early departures A -Number of late arrivals - -Absenteeism Days - Map: the Key1: Caocao - Key2: Cao Pi -Key3: Cao Zhi

3), Pojo by the set, get method to get Ah, the value in the YML

1  PackageCn.com.venus.oa.pojo;2 3 Importjava.util.List;4 ImportJava.util.Map;5 6 Importorg.springframework.beans.factory.annotation.Autowired;7 ImportOrg.springframework.beans.factory.annotation.Value;8 Importorg.springframework.boot.context.properties.ConfigurationProperties;9 Importorg.springframework.stereotype.Component;Ten  One /** A * Methods for loading YAML configuration files - * Spring-boot updated to 1.5.2 After the Locations property is not available - * @PropertySource annotations can only load Proprties file, cannot load Yaml file the * So now put the data into the Application.yml file, Spring-boot will load when the boot -  */ - @Component -@ConfigurationProperties (prefix= "Mybar") +  Public classBar { -     PrivateString name; +  A     Privatestring[] Arrs; at  -     PrivateList<map<string,string>>NameList; -      -     PrivateList<string>barnamelist; -  -     PrivateMap<string,string>map; in  -      PublicString GetName () { to         returnname; +     } -  the     //the string type must be a setter to receive the property value; maps, collections, and arrays don't need *      Public voidsetName (String name) { $          This. Name =name;Panax Notoginseng     } -  the      Publicstring[] Getarrs () { +         returnArrs; A     } the  +      Public voidSetarrs (string[] arrs) { -          This. Arrs =Arrs; $     } $  -      PublicMap<string, string>Getmap () { -         returnmap; the     } - Wuyi      Public voidSetmap (map<string, string>map) { the          This. Map =map; -     } Wu  -      PublicList<map<string, string>>getnamelist () { About         returnNameList; $     } -  -      Public voidSetnamelist (list<map<string, string>>namelist) { -          This. NameList =NameList; A     } +  the      PublicList<string>getbarnamelist () { -         returnbarnamelist; $     } the  the      Public voidSetbarnamelist (list<string>barnamelist) { theBarnamelist =barnamelist; the     } -  in      the}

4), finally perform automatic injection in controller to complete the YML configuration property values:

1 @Autowired 2 Private  Bar Bar;

Second, the Properties configuration file:

The configuration file is loaded with the @propertysource annotation, and the note cannot load the YML profile. Using @value annotations to get parameter values in a file

 Packagecom.sun.configuration; ImportOrg.springframework.context.annotation.Bean; Importorg.springframework.context.annotation.Configuration; ImportOrg.springframework.context.annotation.PropertySource; ImportOrg.springframework.context.support.PropertySourcesPlaceholderConfigurer; /*** Load Properties configuration file, in the method can get * abc.properties file does not exist, verify Ignoreresourcenotfound property * Plus encoding = "Utf-8" property to prevent Chinese garbled, cannot be   Uppercase "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 classPropconfig {//propertysourcesplaceholderconfigurer this bean,//This bean is mainly used to solve the ${used in @value ...}      Placeholder. //If you don't use ${...}  placeholder, you can not use this bean. @Bean Public Staticpropertysourcesplaceholderconfigurer Propertysourcesplaceholderconfigurer () {return NewPropertysourcesplaceholderconfigurer (); }  }  

There are two ways to get the properties file parameter values, one to get the environment object, and the second to @value annotations

1 @Autowired2     PrivateEnvironment env; 3@Value ("${age}")  4 String name; 5   6   7@RequestMapping ("/")  8 @ResponseBody9String Home (HttpServletRequest req)throwsjsonprocessingexception, unsupportedencodingexception {TenLogger.info ("Test pass!!! ");  OneObjectmapper Objectmapper =NewObjectmapper ();  A         //Test Load Yml file -System.out.println ("Simpleprop:" +Config.getsimpleprop ());  -System.out.println ("Arrayprops:" +objectmapper.writevalueasstring (Config.getarrayprops ()));  theSystem.out.println ("LISTPROP1:" +objectmapper.writevalueasstring (CONFIG.GETLISTPROP1 ()));  -System.out.println ("LISTPROP2:" +objectmapper.writevalueasstring (CONFIG.GETLISTPROP2 ()));  -System.out.println ("Mapprops:" +objectmapper.writevalueasstring (Config.getmapprops ()));  -    +         //Test Load Properties File -System.out.println (Env.getproperty ("name"));//Sun Kai +System.out.println (Env.getproperty ("abc"));//NULL ASYSTEM.OUT.PRINTLN (name);// - at    -         return"Hello world!";  -}

Springboot Learning: Reading the contents of the Yml and properties files