JarCastingProperties-scanner
可以方便的读取配置文件，把配置信息读取到实体类。
注解解释
@ScanProperties 加在类上，用属性location标明读取的properties文件名，用属性prefix设定前缀。
@ScanProperty 可选注解，标注在字段上，可以用alias设定别名，ifMissingOfValue指定当配置不存在时的默认值。
范例：
test.properties
#configuration_a
configuration_a.param1=xxxxx
configuration_a.param2=
#configuration_b
configuration_b.param1=yyyyy
configuration_b.param2=200
ConfigurationA.java
import com.github.developframework.scanner.annotation.ScanProperties;
import com.github.developframework.scanner.annotation.ScanProperty;
import lombok.Data;
@Data
@ScanProperties(location = "test", prefix = "configuration_a")
public class ConfigurationA {
private String param1;
@ScanProperty(alias = "param2", ifMissingOfValue = "999")
private int param2;
}
ConfigurationB.java
import com.github.developframework.scanner.annotation.ScanProperties;
import lombok.Data;
@Data
@ScanProperties(location = "test", prefix = "configuration_b")
public class ConfigurationB {
private String param1;
private int param2;
}
Main.java
import com.github.developframework.scanner.PropertiesBox;
import com.github.developframework.scanner.PropertiesScanner;
public class Main {
public static void main(String[] args) {
PropertiesScanner propertiesScanner = new PropertiesScanner();
PropertiesBox box = propertiesScanner.scan(ConfigurationA.class, ConfigurationB.class);
ConfigurationA configuration_a = box.get(ConfigurationA.class);
ConfigurationB configuration_b = box.get(ConfigurationB.class);
System.out.println(configuration_a.toString());
System.out.println(configuration_b.toString());
}
}