解决Java properties文件里面如何写＂\＂的问题_Java教程

解决Java properties文件里面如何写＂\＂的问题

2022-11-13 11:28copa~ Java教程

由于properties使用“\”相当于是java的转义符，如果想要写出\的效果，只需修改相应的写法即可，对java properties文件里的"\"写法感兴趣的朋友一起看看吧

问题

我的是ssh项目，需要做一个文件上传，然后文件路径需要读取properties配置
在resource下有config/application.properties

$解决Java properties文件里面如何写＂\＂的问题$

然后工具类是这样写的，这个是可以用的

				?

									import java.io.IOException;

									import java.io.InputStream;

									import java.util.Enumeration;

									import java.util.MissingResourceException;

									import java.util.Properties;

									import java.util.ResourceBundle;

									public class PropertiesUtil {

									  private static Properties props = new Properties();

									  private static PropertiesUtil instances = null;

									  private static String NAME = "config//application";

									  public static PropertiesUtil getInstance() {

									    if (null == instances) {

									      instances = new PropertiesUtil();

									    }

									    return instances;

									  }

									  private PropertiesUtil() {

									    init(NAME);

									  public synchronized void init(String sPropFilePathName) throws MissingResourceException {

									    String propFile = sPropFilePathName;

									    ResourceBundle bundle = ResourceBundle.getBundle(propFile);

									    Enumeration enume = bundle.getKeys();

									    Object key = null;

									    Object value = null;

									    while (enume.hasMoreElements()) {

									      key = enume.nextElement();

									      value = bundle.getString(key.toString());

									      props.put(key, value);

									  public String getProperty(String key) {

									    return props.getProperty(key);

									  public static String getValue(String filePath, String key)

									    {

									        InputStream in = null;

									        String value = null;

									        try

									        {

									            in = PropertiesUtil.class.getResourceAsStream(filePath);

									            props.load(in);

									            value = props.getProperty(key);

									        }

									        catch (Exception e)

									            e.printStackTrace();

									        }finally{

									            try

									            {

									                if(in != null) {

									                    in.close();

									                }

									            }

									            catch (IOException e)

									                e.printStackTrace();

									        return value;

									    }

									  public static void main(String[] args) {

									    System.out.println(PropertiesUtil.getInstance().getProperty("属性key"));

									}