import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.HashMap;import java.util.Map;import java.util.Map.Entry;import java.util.Properties;import java.util.Set;/** * 读取非设备销售条目的比例的配置文件 * @author xWX146107 * */public class PropertiesUtil {    private static final String path ;            private PropertiesUtil(){}    static{        System.out.println(PropertiesUtil.class.getClassLoader().getResource("").getPath());        path = PropertiesUtil.class.getClassLoader().getResource("").getPath()+                "/quoteConstant.properties";    }    /**     * 读取配置文件的key的值     * @param key     * @return     */    public static String readData(String key){        InputStream is = null;        Properties properties = new Properties();        try {             is = new FileInputStream(new File(path));             properties.load(is);        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }finally{            if(is!=null){                try {                    is.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }        return  properties.getProperty(key);    }    /**     * 读取配置文件的key的值     * @param key     * @return     */    public static Map
     
        readAllData(){        InputStream is = null;        Properties properties = new Properties();        Map
      
        map = new HashMap
       
        ();        try {            is = new FileInputStream(new File(path));            properties.load(is);            Set
        
         
          > set = properties.entrySet();            for (Entry
          
            entry : set) { map.put((String)entry.getKey(), (String)entry.getValue()); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ if(is!=null){ try { is.close(); } catch (IOException e) { e.printStackTrace(); } } } return map; } /** * 修改配置文件的值 * @param key * @return */ public static String writeData(String key,String value){ OutputStream out = null; Properties properties = new Properties(); try { out = new FileOutputStream(new File(path)); properties.setProperty(key, value); properties.store(out, null); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally{ if(out!=null){ try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } return properties.getProperty(key); }}