获取properties自定义资源文件

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之前在项目中使用properties资源文件，主要是客户端根据服务器端抛出的异常代码，然后客户端进行异常匹配，正好可以把这些异常代码放入properties文件中。

/** * Created by diy_os on 2016/11/7. */public class Main {    public static void main(String[] args) throws ClassNotFoundException {        Main main = new Main();        //Class cls = main.getClass();        //Class cls = Main.class;        Class cls = Class.forName("com.lios.java.Main");        ClassLoader loader = cls.getClassLoader();        InputStream in1;       /*        *运用ClassLoader    相对路径        */        in1 = loader.getResourceAsStream("./com/lios/java/lios.properties");        //or        //in1 = loader.getResourceAsStream("com/lios/java/lios.properties");        Properties properties = new Properties();        try {            properties.load(in1);        } catch (IOException e) {            e.printStackTrace();        }        String name = properties.getProperty("name");  //通过键值取出值        System.out.println(name);        /*         *运用Class    绝对路径         */        InputStream in2;        in2 = cls.getResourceAsStream("/com/lios/javac/diy.properties");        properties.clear();  //清空        try {            properties.load(in2);        } catch (IOException e) {            e.printStackTrace();        }        String name1 = properties.getProperty("name");        System.out.println(name1);        System.out.print("\n");        //可以通过流读取文件        File file = new File("G:/JAVA Program File/ideaworkspace/Reflect/src/com/lios/java/lios.properties");        try {            BufferedReader read = new BufferedReader(new InputStreamReader(new FileInputStream(file)));            String s;            while ((s = read.readLine()) != null) {                System.out.println(s);            }        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        System.out.print("\n");        //通过PropertyResourceBundle操作        try {            PropertyResourceBundle bundle = new PropertyResourceBundle(new InputStreamReader(new FileInputStream(file)));            System.out.print(bundle.getString("name"));        } catch (IOException e) {            e.printStackTrace();        }        System.out.print("\n");        //可以自定义资源文件，然后通过流读取，再使用PropertyResourceBundle操作        String url = "G:/JAVA Program File/ideaworkspace/Reflect/resource/lios.properties";        File file1 = new File(url);        try {            PropertyResourceBundle bundle1 = new PropertyResourceBundle(new InputStreamReader(new FileInputStream(file1)));            String address = bundle1.getString("address");            System.out.println(address);        } catch (Exception e) {            e.printStackTrace();        }    }}

getResourceAsStream默认只能加载src/下的文件，当然可以自定义资源文件夹，通过流读取文件，然后再使用PropertyResourceBundle操作。主流框架使用配置文件非常广泛，项目中恰当的使用是个不错的选择。

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