方法：一個簡單的讀取配置文件.properties的工具類 JAVA，.properties工具類

方法：一個簡單的讀取配置文件.properties的工具類 JAVA，.properties工具類

import java.util.ResourceBundle;

public class ConfigHelper {
private static ConfigHelper instance;

private ConfigHelper() {

}

public static ConfigHelper getInstance() {
if (instance == null) {
synchronized (ConfigHelper.class) {
if (instance == null) {
instance = new ConfigHelper();
}
}
}
return instance;
}
public ResourceBundle getConfigResource(String propertyName){
ResourceBundle rb = ResourceBundle.getBundle(propertyName.trim());
return rb;
}
}

XXX.properties配置文件可以放在resource目錄下。

XXX.properties配置文件內容為：屬性名=屬性值

如config.properties:

#CPU權重

cpuWeight=0.5

#內存權重
memoryWeight=0.3

#磁盤權重
diskWeight=0.2

讀取某個配置文件中的某個屬性值：

String cpuWeight = ConfigHelper.getInstance().getConfigResource("config").getString("cpuWeight")