java获得配置文件数据

2019-11-17 04:05:55

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以下是需要获得配置文件的类，其中获得  /config.PRoperties 文件的数据

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package com.chinacache.boss.queryservice.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.apache.log4j.Logger;

public final  class ConfigConstant {
    static Logger logger = Logger
                .getLogger(ConfigConstant.class);

        public static Properties p = new Properties();



            public  static void init() {
            InputStream in = null;
            try {
                in = ConfigConstant.class
                        .getResourceAsStream("/config.properties");
                if (in != null)
                    p.load(in);
            } catch (IOException e) {
                e.printStackTrace();
                logger.error("load " + "/config.properties" + " into Contants error");
            } finally {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e) {
                    }
                }
            }
        }

        public static  String getProperty(String key, String defaultValue) {
            return p.getProperty(key, defaultValue);
        }

        public static String getProperty(String key) {
            return p.getProperty(key);
        }

        public static Object setProperty(String key, String Value) {
            return p.setProperty(key, Value);
        }

}
package com.chinacache.boss.queryservice.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.apache.log4j.Logger;

public final  class ConfigConstant {
static Logger logger = Logger
.getLogger(ConfigConstant.class);

public static Properties p = new Properties();

    public  static void init() {
InputStream in = null;
try {
in = ConfigConstant.class
.getResourceAsStream("/config.properties");
if (in != null)
p.load(in);
} catch (IOException e) {
e.printStackTrace();
logger.error("load " + "/config.properties" + " into Contants error");
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
}
}
}
}

public static  String getProperty(String key, String defaultValue) {
return p.getProperty(key, defaultValue);
}

public static String getProperty(String key) {
return p.getProperty(key);
}

public static Object setProperty(String key, String Value) {
return p.setProperty(key, Value);
}

}

此句是用来调用/config.properties 里的selectdays属性值：

String shouldLastDaysStr=ConfigConstant.getProperty("selectdays");

/config.properties 文件内容：
selectdays=33

basicbak=200808

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