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PropertyUtil.java
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60 lines (54 loc) · 1.87 KB
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package com;
/**
* Created by lenovo on 二月
*/
import org.apache.log4j.Logger;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
public class PropertyUtil {
private static final Logger logger = Logger.getLogger(PropertyUtil.class);
private static Properties props;
static{
loadProps();
}
synchronized static private void loadProps(){
logger.info("开始加载properties文件内容.......");
props = new Properties();
InputStream in = null;
try {
// <!--第一种，通过类加载器进行获取properties文件流-->
in = PropertyUtil.class.getClassLoader().getResourceAsStream("db.properties");
// <!--第二种，通过类进行获取properties文件流-->
//in = PropertyUtil.class.getResourceAsStream("/jdbc.properties");
props.load(in);
} catch (FileNotFoundException e) {
logger.error("jdbc.properties文件未找到");
} catch (IOException e) {
logger.error("出现IOException");
} finally {
try {
if(null != in) {
in.close();
}
} catch (IOException e) {
logger.error("jdbc.properties文件流关闭出现异常");
}
}
logger.info("加载properties文件内容完成...........");
logger.info("properties文件内容：" + props);
}
public static String getProperty(String key){
if(null == props) {
loadProps();
}
return props.getProperty(key);
}
public static String getProperty(String key, String defaultValue) {
if(null == props) {
loadProps();
}
return props.getProperty(key, defaultValue);
}
}