环境：eclipse
步骤一：
创建Maven项目
步骤二：
创建PropertiesUtil类：
package Tool;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
public class PropertiesUtil{
//输出name属性文件内容
public static void outputvalusofProperty(String name) throws IOException{
InputStream in=ClassLoader.getSystemResourceAsStream(name);
Properties pro =new Properties();
pro.load(in);
for (String key:pro.stringPropertyNames()){
System.out.println("key:"+key+" "+"value:"+pro.getProperty(key));
}
}
//获取filename属性文件中，关键字为key的值
public static String getProperty(String filename,String key) throws IOException{
InputStream in=ClassLoader.getSystemResourceAsStream(filename);
Properties pro =new Properties();
pro.load(in);
if(pro.containsKey(key))
return pro.getProperty(key);
else
return null;
}
}
